Applicable standards
| Complies | MSS-SP81 |
|---|---|
| Type | Uni-directional / Bi-directional |
| Size | 50mm to 800mm |
| Material | CI | DI | WCB | CF8 | CF8M | CG3M | CF3M |
| Ends | Wafer, Lugged |
| Operation | Hand-wheel, Chain- wheel, Gear, Lever, Pneumatic or Electric Actuator |
| Specials | Extended Stem, Closed Bonnet, Deflector cone, Soft seated, Purge connection |
| Testing | As per MSS and SP 81 |