STV Valve Technology Group Co.,Ltd
Providing Industrial Valves Solutions Around The World
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Specification
| Mominal diameter | 2"-48" |
| Nominal pressure | PN10, PN16, Class 150 |
| Type of connecting | Wafer |
| Drive | Manual, Worm gear, Pneumatic, Electric-Motorized |
| Disc type | With-pin, One stem no-pin, Double stem no-pin |
| Body materials | Cast iron, Ductile iron, Carbon steel, Stainless steel |
| Seat materials | Rubber, Stainless steel, Aluminum, Iron |
| Stem materials | SS304, SS316 |
Adoptive standards
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class150, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Application
1.Water treatment plant 2.Breweries
3.Drilling rigs 4.Heating & Air conditioning
5.Paper industry 6.Chemical industry
7.Gas plant 8.Sugar industry
9.Waste effluent treatment plant 10.Cooling water circulation
11.Compressed air
Feature
1.vertical center line disc
2.Anti-Blow Out Stem
3.Bi-Directional
4.Fire safe Design
5.Low Friction Body Seat
6.Zero Leakage
Standard Test
Body Test:1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test:1.1 times the working pressure with water.
Function/Operation Test:At the time of final inspection,each valve and its actuator (Flow-Control Lever/ Gear/Pneumatic Actuator),under goes a complete operating test (Open/Close).This test carried out without pressure and at ambient temperature.It ensures the correct operation of the valve/actuator assembly with accessories such as solenoid valve,limit switches,air filter regulator etc.
Special Test:On request,any other test can be carried out according to special instruction by client.