Bi Directional Cast Iron Knife Gate Valve Good Price and High Quality

• Customization: Available
• Type: Straight-through
• Material: Cast Iron
• Model NO.: Z90H
• Pressure: Low Pressure
• Actuator: Manual
• Seal Surface: Parallel Gate Valve
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Design & Manufacture: Mss Sp-61, Asme 16.34
• Face to Face: Mss Sp-81, Asme B16.10, En 558
• Connection End: Asme B16.5, En 1092, JIS B2220
• Sizes: 2" - 36" or Dn 50 - Dn 900
• Pressure Rating: Class150 or Pn6 - Pn16
• Transport Package: Wooden Case or Carton
• Specification: SGS, GMP
• Trademark: U-ideal
• Origin: Tianjin, China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Year
• Package Size: 40.00cm * 40.00cm * 40.00cm
• Package Gross Weight: 20.000kg

Product Description

Product Description

Knife Gate Valve -> Bi-directional Knife gate valve

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 Bi-directional Knife gate valves:
Bi-directional design
Resilient seat
Wafer type cast iron body
Self-cleaning mechanism
Non-rising stem standard, rising stem optional
Plate yoke standard

Applicable Standards of Bi-directional Knife gate valves:
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" - 36" or DN 50 - DN 900
Pressure Rating: Class150 or PN6 - PN16
Materials of valve body: GG25 / A126 B, GGG40 / A536 60-40-18, etc.
Operation: Manual, Gear, Pneumatic, hydraulic and Electric actuator

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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

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