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| Product Name: |
Through Conduit Gate Valve
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| Supply Ability: |
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| Related proudcts |
gate valve, through conduit gate, |
| Specifications |
Through Conduit Gate Valve |
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Through Conduit Gate Valve or Flat Plate Gate Valve, Parallel Plate Gate Valve Manufacturer in China. Through Conduit Gate Valves or Flat Plate Gate Valves are designed and manufactured strictly to DIN, BS, ANSI, API, ISO & GB Standards
Materials available in Cast Carbon Steel, Stainless Steel, Duplex and Special Alloys
Size Ranges from 2”NB to 50”NB
Pressure Ratings from ANSI #150 to ANSI #2500
Ends connections available in Flanged, Butt welded, Hub-connectors, Co***ct Flange or Other Proprietary Connections
Operations in Handwheel, Gear, Pneumatic, Hydrau-Pneumatic and Electric etc.
When the Through Conduit Gate Valve inside Pressure is similar or equal, the gate is under closing status, and the seat surface PTFE Sealing Ring forms an initial sealing (1), when the gate valve is on/off every time, the seat ring can clean the both sides of gate. (See Diagram 1 below)
Enforcing all line pressure (2) onto the through conduit gate valve, the pressure acted onto the gate, forcing it against PTFE Ring of Outlet Seat. Compressing it until the gate is stopped onto the steel seat to form a double sealing: the first sealing is PTFE to Metal, the second sealing is metal to metal, meanwhile, the seat is also firmly forced into its recess. The O-ring (3) prevent any downstream flow at this point. (See Diagram 2 below)
Inlet sealing is formed after the cavity pressure is released; pipeline pressure is acted onto the inlet seat (4) making it move toward to the gate which forms the PTFE to Metal sealing. Meanwhile, O-ring (5) and seat recess forms a co***ct sealing. (See Diagram 3 below)
The through conduit gate valve release its excrescent pressure, when the cavity pressure is more than pipeline, inlet seat is pushed toward to its recess because of thermal expansion, the cavity excrescent pressure between seat and gate releases to pipeline. (See Diagram 4 below)
Through Conduit Gate Valve Structure Features
The Body structure is divided into casted and welded 2 types
The Sea |
| Company: |
Shanghai Dayu Valve Produce Co., Ltd(Sino-US factory)
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| Contact: |
Ms. CAIHONG HU |
| Address: |
No.1280,Panjing Road,Baoshan District,Shanghai 201908China. |
| Postcode: |
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| Tel: |
+86-21-56019182 |
| Fax: |
+86-21-56019182 |
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