Performance & Specifications

 

Nominal working pressure :

PN2,5 - PN6- PN10 : DN80 ~ DN4000

PN16 : DN80 ~ DN3000

PN25 : DN80 ~ DN2000

PN40 : DN80 ~ DN1200

 

Test Pressure (water) Ps (MPa)

Body Test Pressure : 1,5 times rated pressure

Seat Test Pressure : 1,1 times rated pressure

Working temperature : -10°C ~ +130°C

Driving Device : Power-driven, pneumatic

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Product Features

 

Following EN593 standards, design standards our BUV23 valve service life is extended and its safety character is optimum.

The streamlined design of the inside body increases the flow, while the supporting leg and lifting hole facilitate the installation. 

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The twin-shaft design effectively reduces the medium damage to the valve shaft, enhances the coaxiality, decreases the operating torque, and extends the service life of the valve.
The shaft doesn’t go through the sealing ring , so the ring can be replaced while the valve is open. The bushing supports the disc ensuring good sealing orientation and gives to the valve the opportunity to be installed both horizontally and vertically. 

The double eccentric design ensures good sealing quality and lowers torque. Best optimized sealing magnitude of interference extends the valve lifetime.

 

The Nickel-based stainless steel seat overlaying on the body has strong corrosion resistant ability and plenty of hardness, which is the fundamental guarantee of long service life.
The surface of the seat uses polishing treatment, while the other parts are coated with epoxy resin.

The seat adopts T-ring sealing which is inlayed between the disc and the compression ring. In closed position, the sealing ring is pressed by the seat, and forms bi-directional sealing.
The sealing ring can be replaced while the disc is still in place.
The seat can self-enhance the sealing when the valve is closed, and the media, even from different flow directions, will further enhance the sealing.

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There are self-adjusting screws on both bottom and top of the valve. The screws can be adjusted to change the relative position of the disc, ensuring the sealing quality of the valve.