VLV-QLL · Long Leg Quarter Turn Valve
Manual quarter-turn springless diaphragm packless valve with a long leg — GasFlo QLL Series. Opens and closes with a quarter turn of the handle. Body in brass, nickel-plated brass, 316L SS, Monel® R405 or aluminium-silicon bronze. Up to 3,500 psig, Cv 0.13. A reverse-flow inlet (R4) is available.
- Max working pressure
- 3,500 PSIG
- Flow coefficient
- Cv = 0.13
- Seat orifice
- Ø.125"
- Seat material
- PCTFE (standard), Polyimide (optional)
Materials
| Max working pressure | 3,500 PSIG |
|---|---|
| Flow coefficient | Cv = 0.13 |
| Seat orifice | Ø.125" |
| Seat material | PCTFE (standard), Polyimide (optional) |
| Diaphragm material | 316L SST |
| Temperature range | −65°F to +150°F (PCTFE) / −65°F to +250°F (Polyimide) |
| Seat leakage (max) | 2×10⁻⁸ ATM CC/SEC He |
| Inboard leakage (max) | 2×10⁻⁸ ATM CC/SEC He |
| Bottom mount | 2 × 10-32 tapped holes on a 1" bolt circle (optional) |
| Panel mount | Panel hole size 57/64" (optional) |
| Repair kit | RK-SL-DIA |
Applications & Documents
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single select · 2 valuesInlet connection
single select · 8 valuesOutlet port size
single select · 2 valuesOutlet connection
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