Internal screw check valve is used to avoid back flow of medium in pipeline. It depends on flow of medium to open or close. Internal screw check valve allows medium to flow in only one direction.
Standards
Design: API 602, ANSI B16.34
Screw ends: ANSI B1.20.1
Testing & inspection: API 598
Parameters
Model | H14W-16P | |
Nominal Pressure(MPa) | 1.6 | |
Applicable Temperature(℃) | -20～180 | |
Applicable Medium | Water, steam, oil | |
Materials | Body | Stainless steel |
Disc | Stainless steel | |
Seal face | Stainless steel | |
Dimensions
Size | 1/2" | 3/4" | 1" | 11/4" | 11/2" | 2" | 21/2" | 3" |
A | 15 | 20 | 25 | 32 | 40 | 50 | 65 |
|
H | 42 | 51 | 60 | 67 | 75 | 81 | 93 | 104 |
L | 65 | 80 | 90 | 105 | 120 | 140 | 180 | 200 |
Steel Swing Check Valve
DIN 3356 Swing Flanged Check Valve, PN1.6, 2.5, 4.0
Silent Check Valve
