A bolted cover non-return valve is designed to allow unidirectional flow of fluids, preventing backflow in industrial systems. The bolted cover construction ensures a secure and leak-proof seal, making the valve suitable for high-pressure and high-temperature applications. This valve is available in two connection types: flange end and buttweld. Flange end valves are easy to install and maintain, while buttweld valves provide a permanent, leak-tight connection, ideal for critical and long-term applications. These valves are widely used in industries such as oil and gas, power, and water treatment, where reliable prevention of backflow and durability are essential for safe and efficient operations.
Design std |
BS1868/API 6B |
---|---|
Size |
2″ TO 24″ |
Class |
150# TO 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 | As Per Trim Material Combination | ||||||||||
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 | GASKET | STAINLESS STEEL + GRAPHOIL | ||||||||||
6 | BONNET | A216 WCB |
A352 LCB |
A217 WC1 |
A217 WC6 |
A217 WC9 |
A217 C5 |
A217 C12 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
13 | STUDS AND NUTS | A193 B7 |
A320 L7 |
A193 B16 |
A193 B16 |
A193 B16 |
A193 B16 |
A193 B16 |
A193 B8 |
A193 B8 |
A193 B8 |
A193 B8 |
A194 2H |
A194 Gr.4 |
A194 2H |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.4 |
A194 Gr.8 |
A194 Gr.8 |
A194 Gr.8 |
A194 Gr.8 |
||
8 | DISC NUT | STAINLESS STEEL | ||||||||||
9 | SIDE PLUG | STAINLESS STEEL | ||||||||||
10 | LIFTING HOOK | CARBON STEEL | ||||||||||
NOTES : The above data is subject to change without any notice due to our continuing product improvement Program. |