- These instructions must be fully read and understood before beginning maintenance.
FEATURES
SPECIFICATIONS
DRAWINGS & DOCUMENTS
- The concentric disc offers bi-directional service and allows high Cv values with its symmetric shape
- Primary seal is formed by the disc hub and stem top, the seat contact exceeds the pressure rating of the valve
- Secondary stem seal is suitable for high pressure and is self-adjusting
- Disc hub edge are rounded and hand polished to provide full concentric sealing without seat obstruction to flow, combined with maximum seat life
- Replacement seat isolates the stem 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 gasket
- Double flanged body design specified according to JIS F7480
- Heavy duty top bushing absorbs side thrust and torque loads
- Stainless steel disc screws allow quick and easy disassembly
- Factory testing of every valve at full rating ensures 100% tight shut-off
- Type approved by various major shipping class
| Certifications | ABS |
| Application | Ballast Control |
| Body Design | Short Pattern |
| Material | Carbon Steel, Cast Iron |
| Operating Temperature | Up to 250 F (120 C) |
| Pressure Class | PN |
| Seat/Seal Type | Resilient |
| Shutoff Class | Zero Leakage |
| Valve Size | NPS 10 / DN 250, NPS 8 / DN 200, NPS 6 / DN 150, NPS 24 / DN 600, NPS 18 / DN 450, NPS 16 / DN 400, NPS 14 / DN 350, NPS 12 / DN 300, NPS 20 / DN 500, NPS 4 / DN 100, NPS 2-1/2 / DN 65 |
| Valve Size Standard | DN |
| Valve Type | Butterfly |
| Media | Fuel Oil, Liquid |
| Stem | O-ring |