The Series 4000 Quick Opening Valve functions as an in-line on-off switch particularly suited to applications in Instrumentation and Control Panels to open and close circuits or isolate gauges. Full-closed to full-open operation with a 60° turn of the knob.
Standard units detent in the selected position. Optional spring return (R) returns to the off position when released. Available in 2-Way and 3-Way designs — the 3-Way (QE) vents downstream pressure to atmosphere when in the off position. Standard panel mount supplied with Off/On indicator plate and panel nut.
- Full-Closed to Full-Open with 60° Turn of the Knob
- 2-Way (Q) Snap Action On-Off Control
- 3-Way (QE) Vents Downstream Pressure to Atmosphere When Off — Via 3/32" Exhaust Port
- Standard Detent in Selected Position — Optional Snap Return to Off (R)
- Standard Panel Mount — Supplied with Off/On Aluminum Indicator Plate and Panel Nut
- Compact Size — Suitable for In-Line and Panel Mount Applications
- Ideal for Instrumentation and Control Panel Applications
- 100% Factory Tested for Bubble-Tight Shut Off
- Available Cleaned & Packaged for Oxygen Service
- Maximum Operating Pressure: 125 PSIG (8.6 bar)
- Temperature Range: -20°F to 300°F (-29°C to 149°C)
- Flow Coefficient (Cv): 0.5
- Operation: 60° turn from closed to full-open
- 2-Way (Q): Snap action on-off control
- 3-Way (QE): On-off control with 3/32" downstream exhaust to atmosphere when off
- Standard: Detents in selected (open or closed) position
- Option R: Spring loaded — returns to off position when released
- Panel Mount: 5/8" panel hole required | Max panel thickness 5/32"
- Supplied with "Off – On" Aluminum Indicator Plate (1/16" thick, 1-5/8" diameter) and Panel Nut
