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GB No Diversion Hole Flat Gate Valve
Product overview
GB No diversion hole flat gate valve without diversion hole is suitable for natural gas, petroleum, chemical, environmental protection, urban pipeline, gas pipeline and other transmission pipeline, vent system and steam storage device, as the opening and closing equipment.
Product Features
1. Floating valve seat, two-way sealing, reliable sealing and flexible opening and closing.
2. The sealing surfaces of gate and valve seat are spray welded or overlaid with cemented carbide to resist erosion and abrasion.
3. When the valve is fully open, it is connected with the gate guide hole and is similar to the straight pipe, so the flow resistance is very small.
4. The valve rod seal adopts O-ring or flexible graphite packing seal, which makes the seal reliable and the friction force is small.
5. The valve seal is the outlet valve seat seal by default, and the double sealing structure of inlet valve seat and outlet valve seat can be designed according to customer requirements.
Execution Standard
Design spec：JB/T 5298
Face to Face：GB/T 12221
Flange end：HG/T 20592
Test & check：GB/T 26480
Performance Parameter
Nominal diameter：DN50~1000mm
Nominal Pressure：PN1.6～6.4MPa
Applicable media：Oil, gas, water, etc
Applicable temperature：-46≤250℃
Main materials：WCB、WC6、A352-LCB、A351-CF8M
