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美國ALSO艾索閘閥（Gate Valve）

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

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