Product Item: Silent Check Valve
Standard: MSS SP-126
Working Pressure: 300 PSI
200 PSI and 250 PSI available upon request
Material: Ductile Iron ASTM A536 Grade 65-45-12
Temperature Range: 0°C to 80°C
Connection Ends: Flange to ASME B16.1 Class 125 LB
Coating: Fusion Bonded Epoxy Coating following ANSI/AWWA C550 or painting upon request
Material Specification
Part No. | Part | Standard Specification | Options |
1 | Body | ASTM A536, 65-45-12 | |
2 | Stem | AISI 420 | AISI 304, AISI 316, AISI 431 |
3 | Hinge Bushing | ASTM B62 | |
4 | Spring | AISI 304 | AISI 316 |
5 | Nut | AISI 304 | AISI 316 |
6 | Disc | ASTM A536, 65-45-12 Bronze Plated | |
7 | O-Ring | EPDM | NBR |
8 | Hinge Bushing | ASTM B62 | |
9 | Seat | ASTM A536, 65-45-12 Bronze Plated | |
10 | O-Ring | NBR | EPDM |
Note: For Special material request that differ from standard specification, please clearly indicate them on the inquiry or order list.
Dimensions
DN | Dimensions (mm) | |||||
Inch | mm | L | D | D1 | C | n-øL |
2" | 50 | 120 | 152 | 120.5 | 16 | 4-ø19.1 |
2.5" | 65 | 135 | 178 | 139.5 | 17.5 | 4-ø19.1 |
3" | 80 | 155 | 191 | 152.5 | 19 | 4-ø19.1 |
4" | 100 | 165 | 229 | 190.5 | 24 | 4-ø19.1 |
5" | 125 | 190 | 254 | 216 | 24 | 8-ø22.2 |
6" | 150 | 210 | 279 | 241.5 | 25.5 | 8-ø22.2 |
8" | 200 | 260 | 343 | 298.5 | 28.5 | 8-ø22.2 |
10" | 250 | 285 | 406 | 362 | 30.5 | 12-ø25.4 |
12" | 300 | 315 | 483 | 432 | 32 | 12-ø25.4 |