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 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Features:
Three Eccentric Design
Stainless Steel sealing, good sealing performance with both low temperature and high temperature, anti-corrosive, long life
Sealing seat anti-frictional and long life
Bi-Directional
Fire safe Design
Low Friction Body Seat
|
Model |
D343H-10/D343H-16 D343H-25/D343H-40 |
D343H-10P/D343H-16P |
D343H-10R/D343H-16R |
|
|
Working Pressure（MPa） |
1.0~4.0 |
|||
|
Temperature（℃） |
≤425 |
≤200 |
||
|
Medium |
Water, Oil, or Non corrosive |
nitric acid |
Acetic Acid |
|
|
Material |
Body, Disc |
WCB |
CF8/304 |
CF3M/316L |
|
Stem |
2Cr13 |
304 |
316L |
|
|
Body Sealing |
bead welding 507 |
－ |
－ |
|
|
Disc Sealing |
304＋flexible graphite |
304＋PTFE |
304＋PTFE |
|
|
Packing |
flexible graphite |
PTFE |
PTFE |
|
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.
