DelVal Series 42/43
Lined Butterfly Valves
| Body Style | Series 42 – Wafer
Series 43 – Lug |
| Body | DI, CS, SS |
| Disc/Stem | 316 SS
Duplex SS PTFE Lined PFA Lined UHMWPE Lined Halar® Coated |
| Seat | PTFE/Silicone, PTFE/FKM
PFA/Silicone, PFA/FKM UHMWPE/FKM |
| Size Range | 2″ to 24“ (DN 50 to 600) |
| Pressure Rating | 150 PSIG (PN 10) |
| Design Standard | API 609, BS EN 593 |
| Testing Standard | API 598, BS EN 12266-1 |
FEATURES
- ISO 5211 top plate for direct mounting of a wide range of actuators, handles, and gears
- Resilient seat energizer extends completely around seat, including disc hub area
- One piece disc/stem in high strength design – available in SS316 thin profile with hand polished edge and hubs, or PTFE/PFA encapsulated (min. 3mm thick)
- Heavy duty acetal bushing
- Bi-directional U-cup stem seal
- Heavy duty, two piece epoxy coated body with extended neck and locating holes
- Precision machined PTFE/PFA seat (min. 3mm thick)
- Live-loaded stem seal system by a set of Belleville spring washers on the upper and lower stem
