FLR Series pressure regulators provide high flow and quick, positive shut off at the desired set pressure. Designed especially for use as final line regulators for cryogenic liquid cylinders but suitable for many other applications including CO2 service.
Solid, non-tied diaphragm provides leak-free and long-lasting performance. Optimized diaphragm and adjustment spring designs provide high flow performance. Standard 1/8" NPT gauge ports on both sides. Optional T-Handle available for easy field adjustment. All FLR Series regulators are supplied factory pre-set and cleaned for oxygen service.
- Optimized for High Flow: High flow while maintaining outlet pressure near setpoint
- Quick Shut-Off: Regulators transition from the flowing condition to shut in a tight pressure band
- Solid, Non-Tied Diaphragm: Eliminates potential leak path and increases sensitivity
- Designed for Cryogenics: All materials selected specifically for cryogenic environments
- Cleaned for Oxygen Service: Regulators are cleaned for use in Oxygen service standard
- Standard 1/8" NPT Gauge Ports on both sides
- Optional T-Handle for easy field adjustment
- Extensively tested and qualified for CO2 applications
- Max Inlet Pressure: 600 PSIG (41.4 bar)
- Outlet Pressure Ranges:
- Spring A – 15 to 65 PSIG (1.0 to 4.5 bar) — 15 PSI/Turn
- Spring B – 50 to 175 PSIG (3.4 to 12.1 bar) — 25 PSI/Turn
- Spring C – 150 to 350 PSIG (10.3 to 24.1 bar) — 55 PSI/Turn
- Spring D – 300 to 525 PSIG (20.7 to 36.2 bar) — 70 PSI/Turn
- Temperature Range: -320° to 200°F (-196° to 93°C)
- Full Open Flow Coefficient: Cv = 0.51
- Connection: 1/4" NPT IN and OUT, 1/8" NPT Gauge Ports (2)
*PSI/Turn value is approximate change in setpoint per full turn of the adjustment screw (CW to increase, CCW to decrease), for reference only.
