Product Description
Knife Gate Valve -> Knife Gate Valve (Bolted Bonnet)
Knife gate valves are available in various designs, one-piece body and two-piece bodies, rising stem and non-rising stem, uni-direction and bi-direction structures, resilient and metal seat rings, bonnetless and bolted bonnet designs. For optional designs, deflection cone could divert the flow of abrasive slurries and protect valve seat from abrasion, V port disc and through conduit design are used for throttling service, per customers' requirements.
Features of Knife Gate Valve (Bolted Bonnet):
Bolted bonnet design for non-leakage through packing chamber
Beveled knife on metal or resilient seats
Self-cleaning mechanism
Uni-direction or bi-directional design
Rising stem, outside screw & yoke
Applicable Standards of Knife Gate Valve (Bolted Bonnet)s:
A) Design & Manufacture: MSS SP-61, ASME 16.34
B) Face to Face: MSS SP-81, ASME B16.10, EN 558
C) Connection End: ASME B16.5, EN 1092, JIS B2220
D) Test: MSS SP-81
Sizes: 2" - 48" or DN 50 - DN 1200
Pressure Rating: Class150 or PN6 - PN16
Materials of valve body: WCB, LCB, WC6, CF8, CF3, CF8M, CF3M, 4A, etc.
Operation: Manual, Gear, Pneumatic, hydraulic and Electric actuator
Would you like to get more products information or order it, please call me, or click Inquiry Now to fill in the Form.
It helps you get more informations you need to trade confidently with suppliers.
Related products: Gate Valve Ball Valve Check Valve Globe Valve Butterfly Valve Knife Gate Valve Cryogenic Valve Water valve two or three ways valve hydraulic valve float valve pressure reducing valve.
Potential faults | Faults reason | method of troubleshooting |
Seal leakage | Seal ring impurities | Clean seal ring |
Damage of the sealing | Replace seal ring |
upper seal leakage | Upper seal packing loose | Screw down packing or cover bolt |
Upper filling degradation | Oiling or replace the filling |
Flange surface | The bolt haven't be tighten equally | Tighten the bolt with equally force |
Flange seal invalidation | Replace flange gasket |
switch jam | Driving device to dry | add lubricants to the driving device |
switch malfunction | Driving device damage | Replace driving device or repair by professional people |