Norgren RM1H-1GD-NDV Mini Regulator - G1/8, Non-relieving
Part Number: RM1H-1GD-NDV
Quick Summary
RM1H-1GD-NDV is a high-flow miniature precision regulator for compressed air, ideal for medical and automation systems. Engineers often struggle with pressure drop, hysteresis, and non-relieving behavior that compromise responsiveness. This regulator aligns with CE conformity expectations and is suitable for oxygen service, featuring an aluminium body, PPS bonnet, and FPM elastomers to ensure long-term reliability in demanding environments. By delivering stable output and low hysteresis, it reduces waste and maintenance costs, while integrating cleanly with existing pneumatic networks. For OEMs and service teams, the compact form factor simplifies installation in tight panels and retrofit projects. In practice, you gain faster time-to-pressure, improved process stability, and predictable operability across temperature swings.
Product Information
Extended Description
RM1H-1GD-NDV Norgren: Suitable for oxygen service, in medical applications | Excellent flow, pressure drop and hysteresis
Medium
Compressed air, Gases
Operating Temperature
-5 ... 95 °C, 23 ... 203 °F
Port Size
G1/8
Adjustment
Adjusting screw
Maximum Inlet Pressure
10 bar
Outlet Pressure Adjustment
0 ... 2.75 bar, 0 ... 40 psi
Relieving / Non Relieving
Non-relieving
Flow
8.3 dm3/sec, 17.6 scfm
Materials - Body
Aluminium
Materials - Bonnet
PPS
Materials - Elastomers
FPM
Range
RM1
Brand
IMI Norgren
Feature: High-flow performance (8.3 dm3/sec / 17.6 scfm) with low pressure drop; Business Impact: Faster response and steadier downstream pressure in critical processes; Application: Automated pneumatic cycles and medical gas regulation where precision matters. Feature: G1/8 port and adjusting screw for fine-tuning; Business Impact: Easy calibration and repeatable setpoints across shifts; Application: Retrofit into standard 1/8 inch manifolds and OEM equipment. Feature: Maximum inlet pressure 10 bar; outlet range 0 to 2.75 bar; Operating temp -5 to 95 °C; Business Impact: Reliable operation across normal factory and clinical environments; Application: Medical gas interfaces and general compressed-air regulation. Feature: Non-relieving design; Business Impact: Safer operation with pressure held during cycles; Application: Safety-critical automation and gas-handling assemblies. Feature: Aluminium body with PPS bonnet and FPM elastomers; Business Impact: Enhanced durability and gas compatibility; Application: Oxygen service and gas regulation in demanding environments.
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FAQs
The RM1H-1GD-NDV uses standard G1/8 ports, enabling straightforward mounting on compatible manifolds. Ensure proper space for the aluminium body and PPS bonnet, and use suitable fasteners and seals (FPM elastomers) to maintain integrity. Verify accessibility of the adjusting screw for field calibration and confirm that the surrounding panel allows heat dissipation and service access without interference.
The regulator is designed with oxygen-service considerations in mind, using materials like aluminium, PPS, and FPM elastomers for compatibility. When used in medical gas environments, ensure proper cleaning, avoid hydrocarbon contamination, and follow your organization's gas-compatibility procedures. The device supports stable pressure regulation essential for precise medical and lab applications.
Yes, the RM1H-1GD-NDV is non-relieving, meaning it does not vent pressure when the setpoint is exceeded or a vent path is opened. This improves safety in enclosed or critical lines by preventing unexpected pressure release. System designers should include appropriate downstream controls or safeties and ensure proper pressure gauges reflect line conditions.
Operating temperature ranges from -5 to 95 °C, and the maximum inlet pressure is 10 bar. The outlet is adjustable from 0 to 2.75 bar (0–40 psi). Ensure the installation environment stays within these limits, and verify that connected components (valves, manifolds, and hoses) are rated for the same pressure and temperature range.
Typical applications include medical gas regulation and automation pneumatic systems requiring high flow and tight pressure control. Advantages include a compact aluminium body with a G1/8 port, a straightforward adjusting screw for setpoint calibration, and material compatibility (PPS bonnet, FPM elastomers). These features reduce maintenance, improve response times, and simplify retrofit into existing RM1-based networks.