Butterfly Valve Gear Operation
Category: Butterfly Valve  Publish Time: 2015-07-29 05:29 

Butterfly Valve Gear Operation
Product Name:Butterfly valve gear operation
Model:PV122A
Size range:DN150(6") to DN600(24")
Body material:PVC/CPVC/PVDF/PPH/PP
Seat material:EPDM;FPM
Wafer connection: DIN PN10, ANSI CL150, JIS 10K,
Design pressure:0.2~1.0Mpa(PN2~10 bar)

Feature of Valve

◆ Different materials of disc and seat for application of different application.

◆ Steel frame of body and disc make valve stronger

◆ Plastic gear-box is optional for better corrosion resist property.

◆ Electric and pneumatic operation is optional.


Part material list
No. Part Name  Material Optional
1 Hand Wheel Steel/Plastic
2 Body PVC/CPVC/PVDF/PPH/PP
3 Gear Box Aluminium alloy/Plastic Alloy
4 Bolt&Nut Steel;Stainless steel
5 Seat EPDM;FPM
6 Stem Steel;Stainless steel
7 Stem seal EPDM;FPM
8 Disc PVC/CPVC/PVDF/PPH/PP


Dimension Sheet


Trouble shooting

What if fluid leaks when valve is fully closed?

1. Seat is broken.

2. Pressure or temperature is exceeded.

What if the valve can not be fully opened?

1. Gear box stuck.

2. The disc is stuck by the connected flanges on each side.

What if fluid leaks to atmosphere?

1. Stem sealing O ring broken.

2. Seat not assembled rightly.

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