- A heavy duty industrial resilient seated butterfly valve in both wafer and lugged body design for use in shipbuilding, water, HVAC, power, and chemical industry applications.
FEATURES
SPECIFICATIONS
DRAWINGS & DOCUMENTS
- Factory testing of every valve at full rating ensures 100% tight shut-off.
- Actuator flange is standardized for easy operator interchangeability and direct mounting of Keystone range of actuators.
- Primary seal is formed by preloaded contact between disc and seat. These seals protect valve from fluid contact.
- Bi-directional stem seal is suitable for pressure and is self- adjusting.
- The disc hub edge is rounded and polished to provide full concentric seating without seat obstruction to flow, as well as to ensure maximum seat life.
- Replaceable elastomer seat isolates the shaft and body parts from the stream and also serves as the flange gasket.
- Moulded-in O-ring provides positive flange sealing and eliminates the need for additional gaskets.
- Heavy duty top bushing absorbs side thrust and torque loads.
- Heavy duty one piece shaft design provides high strength and positive disc control.
- Stainless steel disc screws allow quick and easy disassembly.
- Disc screw connection is positive shake proof and stronger than shaft.
| Material | 304 Stainless Steel, 316 Stainless Steel, Aluminum Bronze, Buna-N, Cast Iron, Ductile Iron, Epdm Rubber, Stainless Steel |
| Operating Temperature | Less Than 120 C |
| Pressure Class | ASME |
| Process Connection Type | 150RF |
| Seat/Seal Type | Resilient |
| Shutoff Class | Zero Leakage |
| Valve Size | 10 / DN 250, NPS 12 / DN 300, NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 2 / DN 50, NPS 20 / DN 500, NPS 2-1/2 / DN 65, NPS 24 / DN 600, NPS 3, NPS 30, NPS 36, NPS 4 / DN 100, NPS 40 |
| Valve Size Standard | DN, NPS |
| Valve Type | Resilient Seated Butterfly Valve |