Specifications

Features

• Tight shutoff of any fluid can be materialized by an exquisite combination of Metal Seat with elasticity and Disc built up with stellite.
• Its double eccentric structure can lessen scuffing and wearing on Metal Seat. Hence,Valve can be operated with low torque.

1. Disc
2. Gasket
3. Seat retainer bolt
4. Metal seat（SUS）
5. Stellite
6. Body seat
7. Body

Specifications

Standard materials（JIS code）

Leak rate

Standard test pressure

Features

• A steel plate damper available with either round or square pipe connection ends.
• This non-return gravity damper is mainly used in nuclear power facilities for ventilation and air conditioner outlets as well as for transfer.
• It is equipped with an easily adjustable balance weight to balance the impeller blade gravity and operates reliably on even a slight pressure difference.

1. Flange
2. Disc
3. Shaft
4. Lever
5. Bonnet
6. Seat
7. Counter weight

Specifications

Standard materials（ JIS code）

Standard test pressure

Features

• A special structure is employed with two discs inside the valve.
• Water is trapped between the two discs completely shutting off gas flow in this butterfly water trap valve.
• It has an extensive track record of use in diverse gas lines of many steel works for emergency shutoff use.

1. Flange
2. Body
3. Disc
4. Body seat（SUS）
5. Seat

Specifications

Standard materials（ JIS code）

Standard test pressure

Seat materials

Features

• This steel plate airtight damper is mainly used as a shutoff valve for high temperature gases (600℃ max.) and gives unrivaled sealing performance.
• It is used for a wide range of applications including steel works, boiler equipment, fumigation equipment, smoke collector ducts, and solvent recovery.

1. Guide lever
2. Disc
3. Shaft
4. Body
5. Seat

• The D series tight shutoff damper valve disc rotates and slides simultaneously by turning the shaft 90° thanks to its mechanical structure system.

Specifications

Standard materials（JIS code）

Standard test pressure（pneumatic）

Seat materials

Features

• This is a butterfly damper type featuring a steel plate welded structure.
• It is used for ON-OFF and control of the flow of various gases and air.
• As there is no need for the wooden or metal molds normally used in the manufacturing process, a louver damper can also be fabricated.

1. SD type:open type
2. SDs type:low leakage type
3. SDs-AS type:high temperature type
4. Angular louvers type:low leakage type
5. Circular louvers type:low leakage type

Specifications

Features

• This wafer type damper is economical, simple and compact.
• It is used as a control valve in combination with a diaphragm actuator, an air cylinder and a positioner.
• It gives outstanding controllability from low temperatures to ultra-high temperatures.

1. High range ability
2. Big reduction in size
   The hydrodynamic configuration of the disc keeps the flow resistance at a minimum level when the valve is fully open. This valve has twice the CV of glove valves.
3. The body is slim, lightweight and compact.
4. Clearance between body and disc
   Although it is a damper type, it has a low leakage structure （ 0.5 to 2% of rated CV）. Stable control is effected allowing the fitting of a compact actuator.

Specifications

Standard materials（JIS code）

 Standard test pressure（hydraulic pressure）

Features

• This top-class titanium valve is used under very severe conditions where high quality is required.
• This valve has been created utilizing welding know-how accumulated over many years and is fabricated under strict oxygen concentration control conditions.
• This has resulted in a valve that has earned an outstanding reputation for reliability due to its excellent performance and quality, far ahead of any other valve manufacturer.

1. Shaft
2. Seat retainer
3. Seat
4. Disc
5. Body
6. Bottom cover

Specifications

Standard materials（JIS code）

Standard test pressure（hydraulic pressure）

Seat materials

Features

• A valve made of steel plate corresponding to all flange standards.
• Face to face dimensions can be made to user specifications.
• It is particularly suitable for lines requiring large size valves such as those for waste gas in steel mills, heat ventilation air conditioning in power stations, and solvent recovery in chemical plants.

1. Flanges
2. Body
3. Disc
4. Body seat（SUS）
5. Disc seat

Tight shut off seat construction

Specifications

Standard materials（JIS code）

Standard test pressure（hydraulic pressure）

※The materials of the body, disc and shaft can be chosen freely as required.

 Seat materials

Features

• The standard type of valve for ships.
• The valve’s original features have been preserved, and it now also features a more compact and lighter construction, and its tightness and operability have also been improved.
• The maximum working pressure is 1.6 MPa. It is also used for general industrial purposes.
• It has obtained model authorization of various ship classifications such as Lloyd, ABS and NK.

Features

1. Gland bush
2. Gland packing
3. Upper bearing
4. Shaft
5. Seat
6. Seat retainer
7. Disc set pins
8. Disc
9. Seat retainer bolt
10. Lower bearing
11. Body
12. Thrust block
13. Bottom cover
14. Bottom cover gasket

Specifications

＜M（wafer type）＞

＜M16（wafer type）＞

＜MF（flange type）＞

＜MF16（flange type）＞

※The materials of the body,disc and shaft can be chosen freely as required.
※The flange type obtains the recognition of the model of various classifications.

Standard test pressure（hydraulic pressure）

＜M、MF＞

＜M16、MF16＞

 Seat materials

Features

• A light duty type tight shutoff butterfly valve used for tap water, building air conditioning, gas, chemicals, and waste disposal facilities.
• As it is a low torque type, it also gives excellent performance for air and gas lines.

1. Gland bush
2. O-Ring
3. Gland packing
4. Adapter
5. Upper bearing
6. Shaft
7. Seat retainer
8. Seat
9. Disc set pins
10. Disc
11. Seat retainer bolt
12. Lower bearing
13. Body
14. Thrust block
15. Block set pin
16. Bottom cover gasket
17. Bottom cover
18. Thrust bearing

Specifications

Standard materials（JIS code）

※The materials of the body, disc and shaft can be chosen freely as required

Standard test pressure (hydraulic pressure）

Seat materials

Features

1. Key way
   It allows easy assembly and disassembly of all types of actuator
2. Gland follower
3. Packing gland
4. Gland packing
5. Adapter
6. Upper and lower bearings
   The bearings are of Teflon coated stainless steel mesh construction to ensure smooth and reliable shaft movement with balanced contact between disc and seat resulting in lower torque.
7. Seat
8. Disc stopper
9. Seat retainer
   Integral with retainer plate. Plate is located by.
10. Body
    Slim wafer pattern for easy mounting between flanges to specification
11. Thrust ring
12. Thrust piece

Rubber seat

• Inner core metal with rubber vulcanized to metal shaped one piece with retainer.

Teflon seat

• Applicable to almost all corrosive fluids thanks to Teflon’s anti-corrosive characteristic.

Metal seat

• Made of nitriding-hardened stainless steel. The ideal choice for high temperature and special fluids.

Specifications

Standard materials（JIS code）

※The materials of the body, disc and shaft can be chosen freely as required.

Standard test pressure（hydraulic pressure）

Seat materials