A pressure seal non-return valve is designed to allow unidirectional fluid flow while preventing backflow in high-pressure and high-temperature systems. Its pressure seal bonnet ensures a tight and reliable seal, becoming more effective as internal pressure increases, making it suitable for demanding industrial applications. The valve is available in two connection types: flange end and buttweld. The flange end version facilitates easy installation and maintenance, while the buttweld version provides a permanent, leak-tight connection for critical and long-term use. Commonly used in industries such as oil and gas, power generation, and petrochemicals, this valve is valued for its durability, efficiency, and ability to handle extreme operating conditions.
| Design std |
ASME B16.34 |
|---|---|
| Size |
2″ TO 14″ |
| Class |
600# 900# 1500# 2500# |
| Body & Bonnet Material |
WCB, WCC, WC6, WC9, C 5, C 12, LCB, LCC, CF8, CF8M |
| SEAT |
A105+13%CR, A105+STEELITED 6# |
| TRIM |
API NO. 1 TO 16 |
| Face to Face |
ANSI B16.10 |
| End Connection |
ANSI B16.5 |
| P. NO. | PART DESCRIPTION | Carbon Steel to ASTM | Alloy Steel to ASTM | Stainless Steel to ASTM | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type WCB | Type LCB | Type WC1 | Type WC6 | Type WC9 | Type C5 | Type C12 | Type CF8 | Type CF8M | Type CF3 | Type CF3M | ||
| 1 | BODY | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 2 | BODY SEAT RING | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 3 | DISC | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 4 | HING | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 5 | FORK | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 6 | BONNET | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 7 | PRESSURE SEAL GASKET | GRAPHOIL | ||||||||||
| 8 | COVER | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 9 | WASHER | CARBON STEEL | ||||||||||
| 10 | NUTS | A194 2H |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.8 |
A194 Gr.8 |
A194 Gr.8 |
A194 Gr.8 |
| 11 | PRESSURE RING | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
| 12 | FORK NUT | STAINLESS STEEL | ||||||||||
| 13 | HING PIN | STAINLESS STEEL | ||||||||||
| 14 | DISC NUT | STAINLESS STEEL | ||||||||||
| 15 | LOCKING PIN | STAINLESS STEEL | ||||||||||
| 16 | WASHER | STAINLESS STEEL | ||||||||||
| NOTES : The above data is subject to change without any notice due to our continuing product improvement Program. | ||||||||||||