| Model： | ||
| Standard or Nonstandard： | Standard |
|
| Pressure： | MediumPressure |
| PriceRange： | ||
| Structure： | GateNeedle |
|
| Power： | Manual |
|
| Temperature of Media： | HighTemperature |
China (Mainland)
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Bolted Bonnet Gate Valve is used for bidirectional, low-friction fow and 100% shut-off. Gate valves should be operated in the full-open or full-close position for the fow characteristics of the wedge-to-seat design. Concentrated fow across the seats of a partially opened gate valve risks possible seat damage, therefore throttling is not recommended. It can be applied to those where minimum pressure drop is necessary.
There are some details about its structure.Its body offers low resistance fow and optimum strength and performance,and the stem is precision machined and inserts into the horizontal channel in the disc,while the wedge is machined to the tightest tolerances to ensure trouble free shutoff and cycling,etc. Besides, there are also some technique informaitons. Test pressure (ASTM A105). One is under Hydraulic situation. It is (minimum) 3000 p.s.i. to body and (minimum) 2175 p.s.i. to the seat.The other is under the situation of air under water. It is 85 p.s.i to the seat.
At last, it is the standards of the bolted bonnet gate valve.Cconstruction is API 602, BS 5352.Socket weld is ASME B16.11.Threaded isASME B1.20.1.Butt weld isASME B16.25.Test isAPI 598-BS 6755 (Pt.1).
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