Product used for connecting pressure gauges and pipes

Maximum operating pressure

• Brass (C3604BD) 15MPa
• Stainless steel (SUS316) 25MPa

Specifications

Union-type products are convenient for determining the direction of pressure gauges

Maximum operating pressure

• Brass (C3604BD) 20MPa
• Stainless steel (SUS316) 50MPa

Examples of piping methods

Specifications of ZUJ Series

Outline drawing

Due to improvements to this product, specifications may change without prior notice.

Overview

The DI series is a digital pressure gauge that allows for both local indication and pressure transmission by replacing existing 2-wire pressure transmitters, utilizing their wiring. Despite being a 2-wire system, it has achieved LED display. (DIT)

As a sensor-integrated digital pressure gauge, it is the first in the industry to adopt a large-capacity mechanical relay (AC250V/8A resistive load). It is ideal for replacing the combination of Bourdon tube pressure gauges and mechanical switches, significantly improving visibility and reliability. (DIM)

Functions

Zero Shift Function

The Zero Shift function is an automatic zero adjustment feature. When the ▽ key is pressed, all decimal points on the display blink. If you continue to press the ▽ key, after about 3 seconds, the zero point correction value updates, the display reads ‘0’, and measurement resumes. Note that the correction value for the zero shift is backed up and will not be cleared even when the power is turned off.

Tracking Zero Function

It is a function that digitally and automatically corrects the zero point internally.

Example: Correction time = 3 samplings, Correction value = 3 digits
① After power is turned on, the tracking zero function starts. The display is within the correction range, so it shows “0”.
②③ Since the display is within 3 digits, it is corrected to display “0”.
④ It is outside the correction value, so no correction is made.
⑤ The display is again within 3 digits, so it is corrected to display “0”.
※1 The correction value for tracking zero is not backed up (it is cleared when the power is turned off).
※2 The tracking zero function is a feature that monitors gradual zero point drifts such as those caused by temperature effects on sensor output and automatically corrects them. Be careful not to inadvertently dull the measurement response by increasing the average count setting, as it might unexpectedly perform zero correction depending on the setting.
※3 The correction period can generally be calculated using the following formula: Correction period (in seconds) = Correction time setting / Sampling speed setting

Key Protect Function

Key Protect Function

This function imposes restrictions on various features to prevent misconfigurations and malfunctions due to inadvertent key operations.
– Restricted functions

• Zero Shift Function (key operations are not accepted)
• Loop Check Function (key operations are not accepted)
• Setting Comparison Data (however, checking is possible)
• Setting Condition Data (however, checking is possible)

Comparison Judgment Function

In the setting of comparison logic 「LOG」 within the comparison data settings, the following four types of comparison conditions can be selected.

Analog output scaling function

You can set two points arbitrarily within the display range (-5000 to 5000). It is possible to output from 4.00 to 20.00 mA corresponding to the analog output Lo. setting value to the analog output Hi. setting value.

Loop check function

You can output any constant current (4.00 to 20.00mA) from the analog output terminal by setting the key, so you can easily check the operation of the control system.

Automatic DZ function

After the power is turned on, the first measured value is automatically zero-corrected, and subsequent measurements are performed using that as the zero point.
You can enable (on) or disable (off) the condition data “PodZ” setting.
*Auto DZ correction values ​​are not backed up.
(Cleared when the power is turned off.)

Precautions for use

• Do not damage or forcefully bend the power supply wiring, sensor cable, and input/output wires.
• This may cause a short circuit that may cause a fire.
• Do not use it at any other than the specified power supply voltage. Using the product at a different voltage may cause fire, electric shock, or malfunction.
• Do not modify the device or accessories. Doing so may cause fire, electric shock, or malfunction.
• Please make sure to connect the wiring properly. Failure to do so may cause poor contact, resulting in fire, electric shock, or malfunction.

Standard Specifications & Performance

Model number

Specification

Sensor type specifications

*RC (Rated Capacity) represents pressure span.

Dimensions

Terminal connection diagram

Mounting screw diagram

Overview

For selecting a pressure gauge when the pressure of the piping is unknown.

• Equipped with peak hold function to measure the maximum value of the pressure line
• Battery operated for easy portability
• Auto power-off feature for extended battery life
• Excellent environmental resistance

Features

– Features digital zero, peak hold, max/min monitoring, shift, and FIX zero functions, suitable as a pressure tester for the following purposes:

• For selecting a pressure gauge when the pressure of the piping is unknown
• For measuring water hammer, instantaneous excessive pressure, and spike pressure
• For calibrating on-site Bourdon tube pressure gauges

– Battery operated for easy portability

• It is small, thin, and wire-free, allowing for high-precision digital pressure measurement, making it more convenient to bring to sites compared to traditional pressure gauges.

– Long battery life

• The battery life allows for approximately 3000 hours of continuous use

– Excellent environmental resistance

• It has an IP65 equivalent dust and splash-proof structure.
• With an allowable overload of 150% FS, it is durable even when exposed to instantaneous excessive pressures beyond the pressure range and can be used to the full extent of the pressure range.
• Compared to traditional Bourdon tube pressure gauges, it has better vibration resistance and shock resistance.

Standard Specifications & Performance

Model number

General specifications

Dimensions

Overview of ZJO Series

Product used when the pressure gauge and the connecting side have different diameters or materials:

– Maximum working pressure:
– Brass (C3604BD): 50MPa
– Stainless steel (SUS316): 100MPa

Piping method example

Specifications of ZJO Series

Outline drawing

Due to improvements to this product, specifications may change without prior notice.

Overview of ZMC Series

Cock used to shut off fluid when removing a pressure gauge:

– Maximum working pressure: 0.5MPa
– Fluid used: Liquid

Example of piping method

Specifications of ZMC Series

Outline drawing

Due to improvements to this product, specifications may change without prior notice.

Overview

Union-style cock used to shut off fluid when removing a pressure gauge:

– Maximum working pressure: 2MPa
– Fluid used: Liquid

Example of piping method

Specifications

Outline drawing

Due to improvements to this product, specifications may change without prior notice.

Overview of ZKV Series

Adjustable buffer device using the orifice effect to mitigate instant overpressure and pulsating pressure:

• Maximum working pressure: 20MPa
• Test pressure resistance: 30MPa
• Fluid used: Liquid

Example of piping method

Specifications of ZKV Series

■ Standard specifications for ZKV-1 damper

■ Standard specifications for ZKV-2 damper

Explanation of operation

Normally, the center screw ① is tightened to stop the flow of fluid. As a precaution, please verify it with a screwdriver. Loosening the hexagonal tightening nut ② slightly will make it easier to turn the screw ①.

When you loosen the screw ① by turning it to the left, the passage will open. For adjustment, gradually rotate the screw at the start of operation until the gauge pointer swings to the maximum pressure in about one second. This generally provides the best suppression effect against pulsation pressure.

When primarily adjusting for pulsation pressure, start from a slightly loosened position and tighten gradually to minimize the pulsation amplitude. The degree to which you tighten the screw varies depending on the fluid, the pressure level, or the nature of the pulsation pressure, but you should keep it within about 0.5 to 1.5 turns from the fully closed position. Be careful not to over-loosen, as this can cause damage.

Products that insert a damper between the diaphragm device and the gauge ship with the center screw ① pre-adjusted and labeled with a “Do Not Touch – Adjusted” seal. However, you may need to make fine adjustments at the place of use depending on the pulsation cycle and amplitude for optimal conditions.

Finally, please tighten the hexagonal nut ②.

Overview

The product features all wetted parts made of fluororesin, providing excellent corrosion resistance.

Specifications

Features

The diaphragm digital pressure gauge, particularly the DI series, is equipped with a diaphragm device, enabling it to measure pressures of corrosive fluids and gases, which was previously challenging. These gauges excel in applications such as etching processes, developing devices, and stripping equipment in LCD and PDP manufacturing plants. By integrating a diaphragm device with a digital pressure gauge, it becomes possible to handle measurements in environments where corrosive fluids and gases are present.

Structure

The display section is isolated from direct contact with the measurement fluid by a diaphragm, and a suitable liquid is enclosed to smoothly transmit the pressure applied to the diaphragm to the display section. The diaphragm has a simple plate-like shape, allowing for the selection of various materials that match the measurement fluid.

Application

This device is commonly used as a pressure gauge for highly corrosive fluids, and due to its structural ability to increase the pressure transmission area and the diameter of the connection part, it is also widely used for measuring the pressure of high viscosity substances. It is suitable for industries such as petroleum, paper manufacturing, and chemical production.

Features of the Diaphragm Digital Pressure Gauge:

The flange part of the diaphragm digital pressure gauge integrates a diaphragm device directly connected to the pressure-receiving part, with liquid sealed inside under vacuum.
A wide range of lower flange materials is available, including PVC, HT-PVC, PP, and Teflon.

*Please refer to the diaphragm pressure gauge catalog for details.

Specification

※R.C. (Rated Capacity) refers to the pressure range.

Overview

This product is designed for the food, medical, and cosmetics industries. It features a stainless steel waterproof construction, making it highly sanitary and washable.

Features

Made entirely of stainless steel, it offers excellent corrosion resistance and does not compromise the quality of the measured fluid. As fluids do not accumulate, it prevents the growth of bacteria and maintains cleanliness. The liquid sealed inside the diaphragm is safe for use, even if it mixes with food, causing no problems.

Sanitary Pressure Gauge, General Type

■When ordering

To ensure we deliver the product that meets your needs, please provide information on the following items:

1. Model number (application, case type).
2. Size, case exterior shape.
3. Connection thread flange.
4. Pressure range.
5. Fill fluid (propylene if unspecified).

■Example of product name

A. Model: Sanitary Hygienic PS-F

B. Case Exterior Shape and Size: Shape A, 100φ

C. Connection Thread Flange: Connection Flange 1.5S

D. Pressure Range: 1MPa

E. Fill Fluid: Propylene Glycol

*We can also manufacture cap nut types, mail types, flexible types, etc. upon request.

Due to improvements to this product, specifications may change without prior notice.

Sanitary Pressure Gauge with Electrical Contact

Sanitary Pressure Gauge, Special Products

■When ordering

To ensure accurate delivery of your desired product, please provide details for the following specifications:

1. Model number (application, case type)
2. Size and case exterior shape
3. Connection thread flange
4. Pressure range
5. Fill fluid (propylene if unspecified)

■Example of product name

A. Model: Sanitary Hygienic PS-FC

B. Case Exterior Shape and Size: Shape A, 100φ

C. Connection Thread Flange: Connection Flange 1.5S

D. Pressure Range: 1MPa

E. Fill Fluid: Propylene Glycol

F. Contact Type: Upper Limit (H)

Due to improvements to this product, specifications may change without prior notice.

Sanitary Pressure Gauge, Special Products

Due to improvements to this product, specifications may change without prior notice.

Overview

A diaphragm-type pressure gauge integrates a diaphragm device directly connected to the pressure receiving part, with liquid sealed inside under vacuum.

Structure

The measurement fluid does not come into direct contact with the pressure area and the Bourdon tube, as they are separated by a diaphragm. A suitable liquid is enclosed to smoothly transmit the pressure applied to the diaphragm to the pressure gauge. The diaphragm is a simple plate-like shape, and various materials can be selected to match the measurement fluid.

Application

It is widely used for measuring fluids that include highly corrosive fluids, high viscosity liquids, and solids, such as in the petroleum, paper, and chemical industries.

Standard Flange Dimension Table

JIS Flange Dimension Table

(Unit: mm)

Model number	PK-6　Single flange standard model
		Size		75φ 100φ
		Diaphragm diameter		38.5φ		52φ
		Flange diameter		JIS10k-15A~ JIS10k-25A		JIS10k-40A or higher
		Pressure span (MPa)		Pressure	(0~1)~(0~4)	(0~0.25)~ (0~4)
		Material	Upper flange	SUS304
			Diaphragm	SUS316L
			Lower flange	SUS304 Monel SUS316 Hastelloy C SUS316L Titanium
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case		Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃		Tightening bolt	–

Model number	PK-6F　 Single flange diaphragm welding model
			Size		75φ 100φ
			Diaphragm diameter		62φ		76φ
			Flange diameter		JIS10k-40A or higher		JIS10k-50A or higher
			Pressure span (MPa)		Pressure	(0~0.25)~ (0~6)	(0~0.4)~ (0~4)
					Vacuum	–	-0.1～0
					Coupled	–	(-0.1~0.1)~ (-0.1~2.5)
			Material	Upper flange	S25C (Cr plating)　　　SUS304
				Diaphragm	SUS316L Teflon Titanium Monel Tantalum Hastelloy EP rubber SUS316L+Teflon coating
				Lower flange	SUS304 Monel SUS316 Hastelloy C SUS316L Titanium
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case			Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	SUS304

Model number	PK-8F　 Lower flange resin model
			Size		75φ 100φ
			Diaphragm diameter		/	60φ	76φ
			Flange diameter		Compatible with all flange diameters
			Pressure span (MPa)		Pressure	(0~0.25)~ (0~1)	(0~0.04)~ (0~1)
					Vacuum	–	-0.1～0
					Coupled	(-0.1~0.2)~ (-0.1~1)	(-0.1~0.1)~ (-0.1~1)
			Material	Upper flange	S25C (Cr plating)　　SUS304 PVC
				Diaphragm	Teflon Tantalum SUS316L+Teflon coating SUS316L+rubber lining EP rubber
				Lower flange	PVC (up to 60℃) HT-PVC (up to 80℃) PP (up to 100℃) Teflon
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case			Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	SUS304

Model number	PK-9F　Diaphragm welding model
			Size		75φ 100φ
			Diaphragm diameter		76φ
			Flange diameter		Compatible with all flange diameters
			Pressure span (MPa)		Pressure	(0~0.04)~(0~6)
					Vacuum	-0.1～0
					Coupled	(-0.1~0.1)~(-0.1~2.5)
			Material	Upper flange	S25C (Cr plating)　　　SUS304
				Diaphragm	SUS316L Titanium Monel Hastelloy C Tantalum EP rubber SUS316L+Teflon coating
				Lower flange	SUS316 SUS304 SUS316L Titanium Monel Hastelloy C SUS+Teflon coating SS+glass lining SUS+Teflon lining
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case			Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	SUS304

Dimensions

Due to improvements to this product, specifications may change without prior notice.

Overview

In addition to functioning as a pressure gauge, this product incorporates microswitch contacts. Besides being able to read the indicated pressure, it operates ON (OFF) when it reaches a preset pressure value, which can be used for alarms such as buzzers and signal lamps, or for opening and closing small motor valves. Additionally, the version with microswitches for small currents can also be used for sequencer control.

Features

Unlike a pressure switch, this device allows for on-site reading of pressure indicators. It is equipped with a setting pointer, allowing contact operation at any set position. The microswitch uses snap action, so there is no chattering like with pointer contact points. The pressure elements for indication and contact are separate, so they have no interference.

Pressure gauge with microswitch contacts Case appearance

▼100φ

SMK-100 A Rimless type

SMK-100 B Type with rim for screw fixing

SMK-100 D edged/pressure inlet rear type

▼150φ

Due to improvements to this product, specifications may change without prior notice.

Precautions

1. Since a microswitch is used for the contact, there is a unique pressure difference (dead band difference) between the contact activation and return.
The maximum is within 12%FS. Note that the dead band is fixed and cannot be changed.

2 The standard is designed for large currents, so it cannot be used for sequencer input. However, we can also manufacture products for small currents only for products with a size of 100φ, so please specify when ordering. (Order-made product)

3 If you use a large current type for sequencer input, please use it via an appropriate relay.

4 When using an electromagnetic switch or a high-wattage incandescent light bulb to turn it on or off, use a contact protection circuit to prevent flash discharge. This is because there is a large difference between steady current and inrush current depending on the type of load. Therefore, please pay careful attention to the ratings of each model. Inductive loads are especially problematic in DC circuits.
● Protection circuit/example (can be used for both AC and DC)

In small-load AC circuits, it may be better to connect C and R in series and connect S in parallel. In that case, R: several tens to 100 Ω, C: 0.05 to 0.1μF

If used only in a DC circuit, it is OK to use a diode instead of a varistor. In that case, use one with sufficient reverse voltage resistance.

● Inrush current/reference example
Relay: Approximately 4 to 5 times Motor: Approximately 5 to 10 times
Incandescent bulb: Approximately 10 to 15 times Solenoid: Approximately 10 to 20 times

When ordering

To ensure the prompt delivery of the requested product, please provide the following information:

(1) Model number (intended application, case type)
(2) Size, case exterior appearance
– Thread type and dimensions for connections
– Material of the contact liquid part
(3) Contact type
(4) Pressure span

Example of product naming:
(A) Model number: Outdoor use, metal-covered case
(B) Size: 100φ, Case exterior appearance: AU
Connection thread: G3/8B, Contact liquid part material: Brass
(C) Pressure span: 0~0.6MPa
(D) Contact type: Upper limit

Product name example

Product name (A)

Product name (C) (D)

■ Electrical characteristics

Due to improvements to this product, specifications may change without prior notice.

Overview

It is a durable product capable of wide-ranging control due to its unique mechanism.

Specifications

1. Depending on the model, the screw and pressure span may vary.
2. Except for those noted as female threads, all are male threads.

Overview

This product, featuring a unique mechanism, offers exceptional durability and enables a wide range of control capabilities.

Specifications

1. Depending on the model, the screw and pressure span may vary.
2. Except for those noted as female threads, all are male threads.

Overview

This product, utilizing photoelectric switches for its contacts, boasts high contact accuracy and durability.

Specifications

Note) All threads are male threads except those marked as female threads.

Overview

The contact switch pressure gauge utilizes low-contact pressure switches. It is primarily used for alarms such as bells, buzzers, and flashing lamps. By operating the appropriate relay with this signal, its applications can be significantly expanded.

Features

This pressure gauge is ideal not only for alarms but also when on-site instructions are necessary. With just one pressure element, the pointer itself serves as the contact, making it relatively compact and lightweight.

Its scale for indication and setting are identical, simplifying the setup process. By moving the setting needle, you can set it as desired, and it’s easy to understand its operation at a glance.

The contact points utilize high-melting-point platinum. The case is available in both drip-proof and indoor specifications, catering to various environmental conditions.

Pressure gauge with contacts Case appearance

SCT-75 A Rimless type	SCT-75 B Type with rim for screw fixing	CT-75 D edged/pressure inlet rear type
SCT-100 A Rimless type	SCT-100 B Type with rim for screw fixing	SCT-100 D edged/pressure inlet rear type
SCT-150 A Rimless type	SCT-150 B Type with rim for screw fixing	SCT-150 D Edged/pressure inlet rear type
SCK-A/SCP-A Borderless type	SCK-B ・ SCP-B Type with rim for screw fixing	SCK-D With rim/pressure inlet rear type

Due to improvements to this product, specifications may change without prior notice.

Notes

Overview

The diaphragm type pressure gauge is a device where the pressure receiving part is directly connected to a diaphragm mechanism, and it is integrated, with the interior filled with liquid and sealed in a vacuum.

Structure

The measurement fluid does not come into direct contact with the pressure area and the Bourdon tube by separating them with a diaphragm. A suitable liquid is enclosed to smoothly transmit the pressure applied to the diaphragm to the pressure gauge. The diaphragm is a simple plate-like shape, and various materials can be selected to match the measurement fluid.

Application

It is widely used for measuring fluids that include highly corrosive fluids, high viscosity liquids, and solids, such as in the petroleum, paper, and chemical industries.

Model number	PK-1　 Threaded diaphragm standard model
			Size		75φ 100φ
			Diaphragm diameter		76φ
			Connection screw		G1/4B R1/4 G3/8B R3/8 G1/2B R1/2 G3/4B R3/4 G1″B R1″
			Pressure span (MPa)		Pressure	(0~0.04)~(0~4)
					Vacuum	-0.1～0
					Coupled	(-0.1~0.1)~(-0.1~2.5)
			Material	Upper flange	S25C (Cr plating)　　　　SUS304
				Diaphragm	Teflon SUS316L Titanium Monel Hastelloy C Tantalum EP rubber SUS316L+Teflon coating SUS316L+rubber lining
				Lower flange	SUS304 Monel SUS316 Hastelloy C SUS316L Titanium
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case
				Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	–

Model number	PK-1A　 Threaded diaphragm high pressure model
		Size		60φ 75φ 100φ
		Diaphragm diameter		28φ
		Connection screw		G1/4B R1/4 G3/8B R3/8 G1/2B R1/2
		Pressure span (MPa)		Pressure	(0~4)~(0~60)
		Material	Upper flange	SUS304
			Diaphragm	SUS316L
			Lower flange	SUS304　　　　SUS316
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water		Gasket	SUS316
Case material	Aluminum screw lid case		Tightening bolt	–

Model number	PK-7　 Small pressure gauge model used
		Size		60φ 75φ 100φ
		Diaphragm diameter		52φ
		Connection screw		G1/4B R1/4 G3/8B R3/8 G1/2B R1/2
		Pressure span (MPa)		Pressure	(0~0.25)~(0~4)
		Material	Upper flange	S25C (Cr plating)　　SUS304
			Diaphragm	Teflon SUS316L Titanium Monel Hastelloy C Tantalum EP rubber SUS316L+Teflon coating SUS316L+rubber lining
			Lower flange	SUS304　　　　SUS316
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case		Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃		Tightening bolt	–

Model number	PK-8T　Lower flange resin model
			Size		75φ 100φ
			Diaphragm diameter		60φ 76φ
			Connection screw		60φ		R3/8 R1/2
					76φ		R3/8 R1/2 R3/4
			Pressure span (MPa)		60φ	Pressure	(0~0.25)~(0~1)
						Coupled	(-0.1~0.2)~(-0.1~1)
					76φ	Pressure	(0~0.04)~(0~1)
						Vacuum	-0.1～0
						Coupled	(-0.1~0.1)~(-0.1~1)
			Material	Upper flange	S25C (Cr plating) SUS304 PVC
				Diaphragm	Teflon Tantalum SUS316L+Teflon coating SUS316L+rubber lining
				Lower flange	PVC (up to 60℃) HT-PVC (up to 80℃) PP (up to 100℃) Teflon
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case			Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	SUS304

Model number	PK-9T　Diaphragm welded model
			Size		75φ 100φ
			Diaphragm diameter		76φ
			Connection screw		G1/4B R1/4 G3/8B R3/8 G1/2B R1/2 G3/4B R3/4
			Pressure span (MPa)		Pressure	(0~0.04)~(0~6)
					Vacuum	-0.1～0
					Coupled	(-0.1~0.1)~(-0.1~2.5)
			Material	Upper flange	S25C (Cr plating)　　　SUS304
				Diaphragm	SUS316L Titanium monel Hastelloy C tantalum EP rubber SUS316L+Teflon coating
				Lower flange	SUS316 Monel SUS304 Hastelloy C SUS316L Titanium
Filled liquid	Silicon Propylene Glycerin High temperature silicone Daifroil Pure water
Case material	Resin screw lid case			Gasket	Teflon
Accuracy	±1.6% FS / Temperature 20℃±10℃			Tightening bolt	SUS304

Dimensions

Due to improvements to this product, specifications may change without prior notice.

Overview

Suitable for measuring highly corrosive fluids and in harsh environments such as corrosive atmospheres.
This product can be used under certain conditions.

Specifications

Note) All threads are male threads except those marked as female threads.

Overview of US Series

This instrument features all components made of stainless steel, including the fluid contact parts (screw parts, Bourdon tube), case, scale plate, needle, and screws, except for glass and terracotta. This construction provides excellent corrosion resistance. It especially excels in corrosive environments, keeping the case, scale plate, and needle rust-free and in pristine condition for a long time.

Features of US Series

With a wide variety of types and pressure ranges, selecting the right model is easy. We also manufacture products with a splash-proof construction.

All Stainless Steel Pressure Gauge Case Appearance

Specifications

■75φ All stainless steel general case

Due to improvements to this product, specifications may change without prior notice.

General case

Sealed case

Due to improvements to this product, specifications may change without prior notice.

Overview

The product is highly corrosion-resistant as all parts in contact with fluids are made of fluoropolymer.

Specifications

Note) All threads are male threads except those marked as female threads.

Overview

This pressure gauge can simultaneously measure pressure at two locations within the same instrument.

Specifications

Note) All threads are male threads except those marked as female threads.

Overview of KKT

This product features a square front cover measuring 110□ (100φ) for a standard pressure gauge.

Specifications

Note) All threads are male threads except those marked as female threads.

Overview of RST

Used as a receiving gauge for indicating the output of air pressure converters. It is also possible to manufacture non-uniform scale plates for pressure, flow, temperature, etc.

Receiver Gauge Specifications

Note) All threads are male threads except those marked as female threads.

Overview of DF Series

This product only indicates the differential pressure between two measurement points.

Differential Pressure Type Specifications

Note: Except for items marked with female threads, all are male threads.

Overview of BA Series

This device is an indicator equipped with a mechanism for measuring low pressures below 50kPa, which cannot be measured with a Bourdon tube pressure gauge. It uses a chamber (two corrugated sheets combined) as the pressure-sensing element.

Features of BA Series

Pressure readings are easy to take. This product is available in a wide variety of sizes, shapes, and pressure spans.

Low-Pressure Gauge Case Appearance

BAN-A General-purpose Low-Pressure Gauge BAN-A

BAS-A Stainless Steel Low-Pressure Gauge BAS-A

BAK-AMetal Sealed BAK-A 75φ

Specifications of BA Series

• BAN General-purpose Low Pressure Gauge: 60, 75, 100φ
• BAS Stainless Steel Low-Pressure Gauge: 75, 100φ
• BAK Metal Sealed (Outdoor use): 75φ, 100φ

The BAN type is a widely used type of low-pressure gauge. By mass producing it, we have been able to maintain high quality while keeping costs down.

General-purpose Low Pressure Gauge BAN

We can manufacture vacuum gauges and compound gauges. Please contact us separately.
Please contact us separately regarding the size, case appearance, connection screws, pressure, etc.

Due to improvements to this product, specifications may change without prior notice.

Overview of HCT Series

Primarily used for comparative testing and calibration, this product serves as a standard gauge capable of high-precision pressure measurement

Features of HCT Series

• The scale division is fine, making it easy to read even slight pressure differences.
• It can be used as a secondary standard instead of a dead-weight pressure gauge.
• It comes with a test certificate, allowing for accurate pressure readings.
• It has a splash-proof structure (except for the 200φD type), suitable for indoor and outdoor use.

Precision Pressure Gauge Case Appearance

HCT-A Bezel-less Standard Type HCT-A 100φ	HCT-B Screw-fastening Bezeled Type HCT-B 100φ
HCT-D Bezeled, Back Entry Type HCT-D 100φ	HCT-D 200φ Bezeled, Back Entry Type 200φ HCT-D200φ

Specifications of HCT Series

■ 100φ Precision Pressure Gauge

Due to improvements to this product, specifications may change without prior notice.

■ 200φ Precision Pressure Gauge

Due to improvements to this product, specifications may change without prior notice.

Overview

Advancements in cutting-edge technology have led to larger and more high-capacity devices, increasing mechanical and particularly hydraulic vibrations in rotating machines, hydraulic pumps, and water pressure pumps. Traditional pressure gauges couldn’t handle these challenges, leading to the development of glycerin-filled pressure gauges. The ‘Turtle Gauge’ specifically addresses the issue of needle fluctuation caused by intense pulsating pressure that glycerin-filled gauges couldn’t control.

Features

The structure controls the pulsating pressure transmitted to the internal mechanism, resulting in almost no needle fluctuation and stable readings. It also minimizes wear on gears and link mechanisms. This product successfully extends durability significantly, ensuring reliable long-term use.

Pulsation-resistant Pressure Gauge Turtle Gauge Case Appearance

Specifications

75φ Pulsation-resistant Pressure Gauge

Overview of GR Series

Previously, measuring pressure under severe vibration and pulsation conditions was challenging due to the short product lifespan and large fluctuations in the pointer, making accurate measurements difficult. However, by filling the internal mechanism with a glycerin solution, we have developed a product that enables accurate measurements.

Features of GR Series

In cases of significant pulsation pressure, devices often became inoperable in a short period. However, by using this device, we have significantly increased durability. The comparative test results between the traditional model and this device are as follows:

– Pressure Gauge Used: 100φ × 10MPa; Base Pressure 5MPa
– Pulsation ±0.5MPa; Vibration Rate 1200/min; Amplitude ±0.7mm
– General Type: Needle rise of 5° in approximately 70 hours
– Glycerin-Filled Type: Needle rise of 5° in 2200 hours

This results in durability that is 30 times stronger, and the fluctuation of the needle during operation is reduced to about 1/6. Moreover, it uses the same mounting holes as general products, ensuring compatibility with existing vibration-resistant types. The glycerin solution falls under Class 4, Category 3 petroleum equivalent according to fire safety regulations, presenting less risk of fire and being harmless, making it suitable for use in the food industry as well.

General Type Pressure Gauge – Case Exterior

GRK-A Standard Type Without a Rim GRK-A 75φ

GRK-B Screw-In Type with a Rim GRK-B 75φ

GRK-D Rimmed Type with Rear Pressure Inlet GRK-D 75φ

Specifications of GR Series

■ 75φ Glycerin-Filled Pressure Gauge

Due to improvements to this product, specifications may change without prior notice.

Overview

This is a cost-effective pressure gauge designed for measuring pneumatic, hydraulic, and other general pressures.

Features

• Thanks to our mass production system, we have managed to reduce costs, making this a very affordable product.
• It is manufactured according to JIS standards, ensuring stable quality and performance.
• Immediate delivery is available.

General Type Pressure Gauge – Case Exterior

HNT-A Standard Type Without a Rim HNT-A 75φ

HNT-B Screw-In Type with a Rim HNT-B 75φ

HNT-D(60φ) Rimmed Type with Rear Pressure Inlet HNT-D 60φ

Specifications

■ Standard Specifications for 75φ and 60φ (A)-(B)

■ Standard Manufacturing Specifications for 75φ and 60φ (C)

■ Standard Manufacturing Specifications for 75φand 60φ (D)

Due to improvements to this product, specifications may change without prior notice.

When placing an order

To ensure accurate delivery of the product you need, please provide information on the following items:
(1) Model number (purpose, case type)
(2) Size, case appearance, connection threads (type and dimensions of threads), material of connection parts
(3) Pressure range
(4) Additional specifications

Examples of how to refer to products

(A) Model number: Indoor use HNT

(B) Size: 750 Case appearance: AT
Connection thread: G3/8B Material of connection parts: Brass

(C) Pressure range: 0~1MPa

(D) Additional specifications:
Purpose: Vibration-resistant
Treatment: Oil prohibited

Overview of KOT Series

The compact pressure gauge is a mass-produced type of product used for measuring air pressure in pneumatic devices or pressure in small machinery.

Features of KOT Series

• Due to its compact and lightweight design, it can be installed in limited small spaces.
• In addition to its small size, the product offers stable quality and performance.

General Type Pressure Gauge – Case Exterior

KOT-A Standard Type Without a Rim KOT-A 40φ

KOT-D Rear Pressure Inlet Type KOT-D 40φ

Specifications of KOT Series

Due to improvements to this product, specifications may change without prior notice.

Overview of MP Series

This product, type-approved under the new measurement laws, offers high reliability and serves a wide range of fields.

Features of MP Series

• The product features a sealed case, making it suitable for use outdoors or in places with high humidity and dust.
• It comes in a wide variety of sizes, case shapes, and pressure ranges, making it easy to choose the right model.
• MPP (Plastic)
• MPK (Metal)

General Type Pressure Gauge – Case Exterior

MPP-A・MPK-A Standard Type Without a Rim MPP (Plastic) 75φ

MPP-B・MPK-B Screw-In Type with a Rim MPP (Plastic) 75φ

MPK-D Rimmed Type with Rear Pressure Inlet MPK (Metal) 75φ

Sealed pressure gauge MPP (plastic) 75φ 100φ

Sealed pressure gauge MPK (metal) 60φ 75φ 100φ 150φ 200φ

Specifications of MP Series

Due to improvements to this product, specifications may change without prior notice.

Overview

This product, type-approved under the new measurement laws, offers high reliability and serves a wide range of fields.

Features

The product is easy to handle and offers excellent durability. It comes in a wide variety of sizes, case shapes, and pressure ranges, making it easy to choose the right model.

General Type Pressure Gauge – Case Exterior

IPT-A Standard Type Without a Rim, 75φ

IPT-B Screw-In Type with a Rim, 75φ

IPT-D/IPT-DB※ Rimmed Type with Rear Pressure Inlet, 75φ