This safety system enables voluntary instrument inspection during operation using simulated signals, following the New Interlock Safety Inspection Standards. It combines a pilot solenoid valve for emergency shutoff, a proprietary bypass valve, and a pressure gauge for operation checks. Users can easily confirm and replace the solenoid valve while the system stays online, ensuring safe and continuous operation. The well-integrated components ensure reliable monitoring and efficient safety management throughout inspections.

Features

This safety system product enables voluntary inspection of instruments by using simulated signals during operation, in accordance with the New Interlock Safety Inspection Standards. It features a pilot solenoid valve for emergency shutoff valves, along with a proprietary bypass valve and a pressure gauge to confirm operations. Through this system, users not only confirm the solenoid valve’s functionality but also replace it while keeping the system online. This ensures uninterrupted and safe operation. Additionally, the smooth integration of these components promotes reliable monitoring and enhances the overall efficiency of safety procedures throughout the inspection.

Application Examples

• Safety systems in petrochemical plants
• Chemical plant safety systems

Specification

Features

• Energy-saving model of 3.6W DC (78% less than our previous model)
• Acquired TIIS technical standard Exd IIC T6 and also supports hydrogen explosion protection
• Safety level SIL3 certified
• Both manual reset and auto reset types available
• AISI 316L body material available

Specification

At ASCO, we provide a wide range of products, such as three-way pilot solenoid valves, manual reset solenoid valves, and pilot valve redundancy systems. These solutions are perfect for safety instrumented systems and essential circuit final elements. Additionally, we offer products that comply with ATEX standards and hold SIL certification. When it comes to functional safety, you can always count on ASCO for reliable performance.

3-way solenoid valve

This solenoid valve holds certification from the third-party certification body exida for IEC61508 Part 1&2 SIL3, making it ideal for use as a pilot valve for spring-return actuators. Typically, it operates in 1oo1 and 1oo2 configurations, but can be easily adapted for 2oo2 setups as well. Beyond that, it serves as a reliable solenoid valve for process control, and when paired with a digital valve controller, it functions as an effective emergency shutoff valve for both on-off and control valves.as a solenoid valve for process control, and as an emergency shutoff valve when combined with a digital valve controller for on-off valves and control valves.

Manual reset type & coil redundant pilot valve

Manual reset type pilot valves play a key role in the process industry, offering SIL3 certification for use in demanding plant environments that require high reliability. Lever type manual reset valves deliver corrosion resistance and durability, making them perfect for circuits where manual control handles the final process. Coil redundant pilot valves are ideal for applications requiring frequent operation.Coil redundant pilot valves can be used for high frequency operation.

Pilot valve redundancy system

This pilot valve redundancy system functions as a single 3-way valve. It is possible to perform online testing of the solenoid valves in the redundant circuit, partial stroke testing of the process valves, and online maintenance, making it ideal for applications that require high reliability or functional safety. Either 1oo1HS mode or 2oo2D mode can be selected. Both modes are SIL3 certified according to IEC61508 Part 1&2.

Features

You can easily install this on Red-Hat II (RH-II) solenoid valves with resin molded coils. Designed for outdoor use, it offers reliable drip-proof protection (IP65). When combined with CE marking-compliant products, it still ensures full compatibility without any issues, providing seamless integration throughout the system.

Features

You can install this on Asco general-purpose solenoid valves. It works seamlessly with both conduit connection and cable gland methods, with a gland and gasket conveniently included as standard. Additionally, it supports all wiring terminals, such as round terminals, rod terminals, and lead wires, making it versatile for various setups. Designed for outdoor use, it offers drip-proof protection (IP65) and complies with JIS F 8801 marine waterproof standards when using the cable gland type, ensuring reliable performance in challenging environments.

Features

The design uses stainless steel 316 for both the body and all internal metal parts, ensuring durability and suitability in harsh environments. Additionally, it meets SIL assessment standards and complies with NACE requirements, offering enhanced reliability. Furthermore, it adheres to ATEX94/9/EC standards, ensuring Ex II 2GD c IIC T100℃(T5)(Zone 1-21) compliance for safe use in hazardous zones.

Switch boxes are commonly used in overseas petroleum, chemical plants, and thermal power plants to detect valve openings and closings. In Japan, adjusting lever-type limit switches and proximity sensors to match valve parts was the norm, but exposed detection parts often caused issues like sticking and detection failures.

This switch box attaches directly to the actuator’s rotating shaft, removing the need for fine adjustments and eliminating misalignment problems. The switch, housed in a pressure-resistant, explosion-proof casing, ensures reliable detection by isolating it from the environment.

It supports both mechanical and analog signals, as well as HART communication for remote monitoring of valve states. You can easily retrofit it without major design changes, and the display provides visual confirmation of valve positions, enhancing on-site safety and reducing maintenance labor. By integrating sensor technology for stable plant operation, labor-saving, and IIoT compatibility, this switch box introduces a new solution for valve detection in Japan, contributing to safer plant operations.

Features

• Pressure-resistant and dust-proof structure
• Explosion-proof electrical machinery and equipment type inspection passed
  CML 19JPN1073X
• Compliant with global explosion-proof standards
  
• Reliably detects valve opening and closing with limit switches and indicators
  . Built-in mechanical contacts. Open /close indicator.
• The switch is fully built-in and can be used in outdoor and coastal environments.
• High weather resistance and corrosion resistance
• Easy installation design with NAMUR shaft

Specification

Features

①Complies with global explosion-proof standards, including Japan
Ex db eb IIC T6 Gb / Ex tb IIIC T85℃ Db

②Abundant variations
Wideoperating temperature range (-50 to 204℃)
This product provides precise sensing from 1 to 10mm, and with a dedicated magnetic target, the range extends up to 98mm. It combines advanced technology with practical design for reliable performance across different conditions, ensuring both precision and flexibility.

③Non-contact type
No moving parts exposed to the outside, no sticking or misalignment of contacts
No power supply required for operation
Mechanical life 10 million times (in-house test value)

④Fully sealed (Hermetic Sealed)
IP66/68 compliant
Resistant to seawater and corrosive atmospheres
Body material
Stainless steel 316L
Completely sealed to prevent air and steam from passing through

Features

①Precise sensing with a small body of only 46mm
Sensing distance 1.5mm

②Non -contact type
No moving parts exposed to the outside, no sticking or misaligned contacts
No power supply required for operation
Mechanical life 1 million times (internal test value)

③Fully sealed (Hermetic Sealed)
Meets IP69K required for sites where high-pressure hot water at 80℃ is used for cleaning, such as meat, food processing, pharmaceutical, and beverage industries.
Also supports IP68, allowing submersion (connector connection).
Body material is stainless steel 316L, which is impermeable to air and steam

④Complies with various national regulations such as RoHS, China RoHS, CE, and CCC

Features

①Complies with Japanese explosion-proof and other global explosion-proof standards
Exd ⅡC (explosion-proof), Ex ia ⅡC (intrinsically safe explosion-proof)

②Non-contact TypeNo moving parts exposed to the outside, no sticking or misalignment of contacts
No power supply required for operation
Mechanical life 200 million times (internal test value)

③Fully sealed (Hermetic Sealed)
P66/68 compliant
Resistant to seawater and corrosive atmospheres
Main body material
Stainless steel 316L
Fully sealed, air and steam impermeable

④Complies with various country regulations such as RoHS, China RoHS, CE, CCC, etc

Features

The system offers a variety of mounting methods, voltage options, sealing materials, and electrical connections, providing flexibility for different setups. Its small, lightweight design ensures easy installation, while delivering a flow rate up to a Cv value of 0.07. With low power consumption and an exceptionally long lifespan—lasting hundreds of millions of cycles—it meets the demands of various applications. Additionally, the system complies with RoHS standards, ensuring environmentally friendly performance.

Application Examples

The system works seamlessly with portable oxygen concentrators, ventilators, and air monitoring devices, ensuring reliable performance across various medical and environmental applications. It also supports heating and cooling equipment, making it adaptable for temperature control needs. Additionally, it integrates smoothly with carpet tufting machines, printing presses, and engraving machines, offering versatility in industrial and commercial settings.

Features

Flat spring structure eliminates friction during operation, generates no particles, and has a long life (1 billion times)
The only moving part is the flat spring, making it light and quiet
Can be used for vacuum applications up to absolute pressure of 0.01MPa as well as positive pressure (orifice diameter 0.6mm, 1mm)
Piping connection type and manifold mount type are available.

Working Principle

Features of flat springs

Magnetic stainless steel (easily attracted to magnetic fields and has excellent formability).

Application Examples

Differential Pressure Sensor Test Equipment
Smoke Analyzer
Air control for textile machines
Oxygen concentrators

The system controls the fluid by compressing a silicone tube, keeping the fluid completely isolated from the valve body. This setup ensures the ability to manage highly pure fluids while eliminating any risk of contamination. This design guarantees both purity and safety in sensitive applications.

Features

• Use the soft tube as is and control the fluid by directly clamping and releasing the tube.
• Compact and compatible with various sizes of silicone tubes
• Easy tube insertion and removal
• Manual operation panel mounting bracket is standard equipment

Easy attachment and detachment of soft tubes
The soft tube device can be easily attached and detached from the side using the slits.

Flow characteristics of pinch valves
When opened, it deforms into an elliptical shape, but the cross-sectional area remains constant, reducing pressure loss.
Compatible with highly viscous slurry-like fluids.
There is no liquid accumulation in the flow path.

Pinch valve installationBracket position that isolates the body and coil.
The equipment panel can be used to isolate the electrical wiring and coils.
The body is open to the operator, allowing tube replacement and maintenance to be performed safely.

Application Examples

• Analytical equipment for water, acid, etc.
• Hematology Analyzer
• DNA Analysis Equipment
• Bacterial identification
• Liquid product filling equipment

Features

• Compact and compatible with high pressure and large flow rate
• The solenoid stays separate from the fluid, which makes it highly suitable for handling corrosive fluids. This isolation increases durability and enhances performance in challenging environments.
• Self-draining internal structure for easy flushing of fluids
• Rocker structure that does not easily transfer heat to the fluid
• Long life

Structure

Pay attention to the shape of the outlet!

• The exhaust outlet is located at the lowest position.
• A gently sloping bowl-shaped exhaust outlet.
• With an internal volume of less than 0.48ml, liquid is discharged smoothly.

• It has a rocker/flapper structure with the center of the moving part as the fulcrum.
  The internal volume distribution is inverted left and right when electricity is applied or de-energized, but the overall internal volume does not change, so the impact on the quantitative performance of the device is reduced.

Low power consumption due to power save function (when using power save connector)

Application Examples

• Analytical Equipment
• Microreactor
• Bio Equipment
• Dispensing Machine
• Chromatography (HPLC, GC)

Features

• Ultra-compact (width 10mm) allows for integration of piping
• Small internal volume (13μl) and minute pumping volume
• Self-draining internal structure for easy flushing of fluids
• The rocker structure blocks heat transfer to the fluid, while the built-in power save switch circuit lowers power consumption. This combination ensures better thermal management and energy efficiency, improving overall system performance.
• Flat bottom and soft tube connection sub-bases also available

Structure

Pay attention to the shape of the outlet!

• The exhaust outlet is located at the lowest position.
• A gently sloping bowl-shaped exhaust outlet.
• With an internal volume of just 13 μl, the design prevents liquid accumulation, ensuring smooth and efficient discharge of the liquid. This compact volume promotes faster flow and improved performance in various applications.

After thoroughly cleaning the inside and replacing the reagents, analysis with different reagents can be performed consecutively to prevent cross-contamination of liquids.

• It has a rocker/diaphragm structure with the center of the moving part as the fulcrum.
  The internal volume distribution is inverted left and right by energizing and de-energizing, but the overall internal volume does not change, so the impact on the quantitative performance of the device is reduced.

Low power consumption due to power saving function

The power-saving circuit built into the solenoid valve body reduces power consumption to 1W.

Rocker Structure::  The valve and solenoid are linked via a rocker arm, so heat transfer is mild.

Application Examples

• Analytical Equipment
• Microreactor
• Bio Equipment
• Dispensing Machine
• Chromatography (HPLC, GC)
• Inkjet printer

This is a motor type proportional control piston valve that does not require an air pressure source. Since no air pressure source is required, a compact layout is possible.
Piping size 3/8, 1/2, 3/4
Air, gas Class 1 & 2
Water, oil, liquid Class 1 & 2
Steam (up to 145°C)

Features

No air pressure source required
Also supports high temperature steam (up to 145℃)
Can be used in vacuum conditions up to 10 ^{-2 Bar}
Two types: On/Off type and proportional control
LED lamp indicates valve open/close status
Open/close signals can also be sent to a PLC

General Specifications

Two types of sealing materials are available

Technical Specifications

Application Examples

• Adjustment of the flow rate of burner combustion gas
• Adjustment of mold cooling water flow rate
• Steam flow rate adjustment
• Proportional control valve application examples

Features

This PWM (pulse width modulation) controller provides proportional control for solenoid valves, allowing users to precisely manage flow rate, pressure, temperature, and force.

Users can easily configure the system in multiple ways, such as setting it up as an open loop, a closed loop, or even a double loop (cascade) system.

This versatility makes the controller adaptable to various applications, ensuring optimal performance in each setup.

Its flexibility and wide range of control options make it suitable for many different uses.

This is a two-way valve operated by air, capable of controlling the flow rate in proportion to the control signal. It can regulate the flow of air, general fluids, and corrosive liquids. With its compact design and ease of use, the valve is highly convenient. By using dedicated software, users can also perform feedback control and make parameter adjustments seamlessly.

Features

The valve controls flow proportional to the control signal and allows for feedback control when using external sensors. It includes an LED indicator, making it easy to check the valve’s open or close status at a glance. Designed for outdoor use with an IP66 rating, the valve also offers the option of fail-safe operation for added safety. It features a 2-way piston design, normally closed (NC) with under-disk pressure type, and is available in operator diameters ranging from 63mm to 125mm. Additionally, users can choose between cable gland or M12 type wiring connections, depending on their preference.Wiring connection can be selected as cable gland type or M12 type

Application Examples

Adjustment of the flow rate of burner combustion gas
Adjustment of mold cooling water flow rate
Steam flow rate adjustment
Proportional control valve application examples

Specification

The post ASCO Proportional Control Air Operated Valve first appeared on Kouei Japan Trading | Get Quotation.]]> https://koueitrading.com/global/product/asco-compact-proportional-control-valve-preciflow-ipc/ Sat, 19 Sep 2020 02:02:30 +0000 https://koueitrading.com/global/?post_type=product&p=123136 Made in Japan Manufacturer: ASCO JAPAN  Co.LTD. Features Flow control proportional to the control signal is possible Low power consumption ensures pressure and flow rate In addition to the compact cartridge type, we also offer a pad mount type that can be equipped with a manifold and a female thread piping type. Application Examples Mass […]

I deal for automatic gas flow control of analytical equipment such as gas chromatographs!

Preciflow allows for high-precision control even with a small, lightweight unit.
High-precision proportional control of air and gas can be easily achieved with an open loop, saving space and reducing costs for proportional control lines!

Two flat springs (navy blue) lift and move the core (gray), resulting in smooth, friction-free operation and a long life.

Compact cartridge types are also available.

*We have Posiflow and Preciflow in stock. Evaluation samples are also available.

Features

• Micro flow control at 1NL/min level possible
• Open loop with hysteresis of 3% or less, high accuracy with repeatability and sensitivity of 1% or less
• Supports vacuum control at 10 ^{-8 Pa level (optional)}
• Compact and long life.
• There are also types that can ensure pressure and flow rate with low power consumption
  (please inquire).

Application Examples

• Air control for painting machines
• Semiconductor vacuum deposition equipment
• Oxygen concentrators
• Automatic gas flow control for gas chromatographs and other analytical equipment
• Proportional control valve application examples

Specification

2-way proportional control solenoid valve Posiflow
Compact Preciflow IPC Series
Proportional control solenoid valve top

Features

You can adjust the coil current easily through an external analog signal, with options including 0-10V, 4-20mA, or 0-20mA. The core moves to any desired position along the stroke, allowing precise control. By managing the orifice opening, you achieve stepless flow rate control from 0 to 100%. When combined with various sensors and control devices, this setup supports the automatic control of a wide range of equipment.

The electronic control unit for regulating coil current offers a compact, plug-in design, making it simple to integrate. You can select the control input signal from 0-10V (DC), 4-20mA, or 0-20mA. Additionally, the RAMP function smoothly adjusts the core control output current to handle sudden changes in the input signal, ensuring stable and efficient operation.

Application Examples

Cooling water control for casting equipment
Cryopump He gas control
Cooling control for semiconductor device
Gas control for medical gas mixing equipment
Oxygen control for ozone gas generator
Automatic gas flow control for gas chromatographs and other analytical equipment
Proportional control valve application examples

Specification

Features

Features

This 2-way air-operated valve offers precise flow control that directly corresponds to the control signal. It efficiently manages not only air and general fluids but also corrosive fluids, making it a versatile solution for various flow control needs. The valve ensures smooth operation across different fluid types, providing reliable performance with enhanced flexibility.

Features

This 2-way air-operated valve, featuring a 32mm piston diameter, offers a compact and efficient solution. Its palm-sized design fits easily into tight spaces, providing flexibility in installation. As the smallest model in the industry, it comes in sizes ranging from Rc3/8 to 3/4, making it ideal for a wide range of applications where space is limited.

Features

The piston valve combines the drive cylinder with the valve, using the reciprocating motion of the piston rod to open and close the valve body directly. It delivers both power and high reliability, making it especially effective for controlling steam and high-viscosity fluids. Designed for durability, it handles up to one million operations, ensuring long-lasting performance in demanding conditions.

At ASCO Japan, we offer a wide range of solenoid valves for special specifications and special fluids. These include manual reset types for safety circuits, quiet operation models for silent and frequent operation with long life, and solenoid valves for vacuum devices. We also provide specialized valves for combustion fluids such as oil and gas, as well as solenoid valves for ultra-low temperature fluids and liquefied carbon dioxide gas. Please select the appropriate solenoid valve based on your application.

Vacuum solenoid valves (pressure-resistant explosion-proof models also available)

We offer a wide range of pipe diameters for various vacuum devices. Depending on your application, you can choose from low vacuum, medium vacuum, or high vacuum options.

Solenoid valves for ultra-low temperature fluids and liquefied carbon dioxide gas

These valves can be used for demanding applications involving ultra-low temperature fluids such as liquid oxygen, liquid argon, and liquid nitrogen. We also offer solenoid valves for automatic control of liquefied carbon dioxide gas. Models compliant with the RoHS directive are also available, so please feel free to contact us for more information.

Combustion Solenoid Valves (Pressure-resistant explosion-proof models also available)

These valves are designed for various fuel lines and combustion systems, primarily using gas and heavy oil. A wide selection of pipe diameters and orifice sizes is available.

Manual Reset Type (Pressure-resistant explosion-proof models also available)

This safety circuit solenoid valve combines manual and electrical operation. It is available in three types: no-voltage release, power-on release, and free-handle type.

Features

ASCO Japan provides solenoid valves that fully comply with various international explosion-proof standards. We proudly introduce the key overseas explosion-proof standards that ASCO Group solenoid valves meet, ensuring both safety and performance across global markets.

Features

This intrinsically safe explosion-proof solenoid valve delivers both compactness and flexibility, allowing for series connections. It handles hydrogen explosion-proof environments with ease, ensuring reliable performance. With an explosion-proof rating of Ex ia IIC T4, it offers the perfect blend of safety and versatility for a wide range of applications.

Features

Japan introduces its first solenoid valve that combines increased safety with resin-filled explosion-proof construction. It offers hydrogen explosion-proof compatibility while maintaining a compact design. With an explosion-proof rating of Ex e mb IIC, this valve ensures both safety and efficiency, bringing advanced protection without compromising on size or performance.

Features

This product meets the Safety Integrity Level (SIL) standards for the Japanese domestic market and holds TIIS certification. It offers a low power consumption design, running efficiently at 3.6W DC. With an explosion-proof rating of Exd IIC T6, it ensures reliable performance in hydrogen environments, combining safety and energy efficiency seamlessly.

Features

This product follows the “Guidelines for Explosion Protection in Factory Equipment (Gas and Vapor Explosion Protection, 1979)” established by the Industrial Safety Research Institute of the Ministry of Health, Labor, and Welfare. Designed specifically for the Japanese domestic market, it carries TIIS certification. We provide a diverse selection of options, including 2-way, 3-way, and 4-way models. Additionally, it meets explosion-proof ratings of d2G4 and d3aG4 for hydrogen environments, ensuring reliable safety and performance.

Features

This is a pressure-resistant explosion-proof solenoid valve that complies with the latest international explosion-proof standards (IECEx/ATEX). The design has been revamped from the conventional JE series (d2G4/d3aG4), allowing the direction of the conduit ports to be changed on-site. Additionally, the valve features double coating with chromate treatment and special epoxy paint, improving corrosion resistance and durability.

Explosion-proof standards: Exd ⅡC T6, Ex tb ⅢC T80℃ Db
Explosion-proof certifications: IECEx/ATEX, Japan, China, Korea, Taiwan, UAE

Features

This valve typically operates double-acting cylinders, using four or five pipe connections (ports). It directs fluid pressure to one side of the cylinder and simultaneously exhausts pressure from the other. As the valve shifts to the opposite position, it switches the supply and exhaust, reversing the pressure flow within the cylinder.

Features

The 3-way solenoid valve features three pipe connections (ports) and two flow paths (orifices). One orifice remains open at all times, while the other stays closed. This solenoid valve commonly controls actuators and single-acting cylinders, alternating between pressurization and exhaust. It also works well for switching flow paths or fluids. There are three main types: normally closed, normally open, and universal.The valve is categorized into three types: normally closed, normally open, and universal.

Features

They have one inlet pipe (IN port) and one outlet pipe (OUT port) and are used to stop or flow the fluid.
They are classified into two types: normally closed (NC: the valve closes when de-energized and opens when energized) and normally open (NO: the valve closes when energized and opens when energized).