Norgren RM1H-1GD-NAV High-Flow Regulator - Oxygen Service
Part Number: RM1H-1GD-NAV
Quick Summary
The RM1H-1GD-NAV is a high-flow miniature regulator that precisely controls air pressure for medical-grade pneumatic lines. Engineers often grapple with pressure drop, hysteresis, and limited flow in compact regulators, especially in oxygen service. Key certifications and expectations for regulators in this class include CE marking, SIL readiness for safety-critical systems, and IP protection; verify exact certifications for your installation. Beyond safety, the RM1H-1GD-NAV delivers reliable flow and precise adjustment in a compact G1/8 package, enabling faster assemblies, reduced tubing, and lower operating costs in medical and industrial automation. This combination of performance and durability supports compliant, efficient production and easier maintenance.
Product Information
Extended Description
RM1H-1GD-NAV 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 ... 0.35 bar, 0 ... 5 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 capability of 8.3 dm3/s (17.6 scfm) delivers rapid response and stable downstream pressure in dynamic pneumatic networks. Business impact: reduces cycle times and minimizes pressure swings that disrupt sensitive loads. Application: ideal for oxygen service and medical gas delivery where precise, high-volume regulation is essential. Feature: G1/8 port size and compact aluminium body simplify installation and retrofit in space-constrained panels. Business impact: lowers assembly time, reduces leak risks, and supports robust performance with standard fittings. Application: medical devices, compact automation modules, and lab equipment where tight spaces and quick changes are common. Feature: Outlet pressure adjustment from 0 to 0.35 bar (0 to 5 psi) enables precise control for delicate loads. Business impact: minimizes over-pressurization, improves repeatability, and tightens process windows. Application: precise gas delivery for sensors, actuators, and analytical instruments within regulated environments. Feature: Maximum inlet pressure of 10 bar and non-relieving operation enhance safety and reliability in medical and industrial lines. Business impact: reduces risk of unintended venting and simplifies maintenance planning. Application: general pneumatic supply networks and oxygen-enabled equipment where predictable behavior is required. Feature: Materials—aluminium body, PPS bonnet, and FPM elastomers—offer durability and chemical compatibility, including oxygen service. Business impact: longer service life in humid or corrosive environments, lower downtime, and better lifecycle costs. Application: oxygen lines, hospital devices, and gas-handling assemblies in labs and manufacturing.
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FAQs
Begin by preparing a clean, dry air supply and inspect fittings for compatibility with G1/8 threads. Use proper thread sealant or PTFE tape, align port orientation to minimize bending of tubing, and secure the regulator to a rigid mounting surface. Verify there are no cross-threaded connections, then test with a low-pressure bleed and gradually raise to operating pressure to confirm leak-free operation.
The regulator accepts up to 10 bar on the inlet side and provides an adjustable outlet range from 0 to 0.35 bar (0 to 5 psi). Ensure downstream equipment operates within this range and that your supply is filtered and dry to maintain stability and repeatability in regulated pressure for sensitive loads.
Yes, the extended description notes suitability for oxygen service and medical applications. When deploying in medical devices, verify gas purity, material compatibility, and regulatory compliance for your jurisdiction. Use oxygen-rated components and ensure proper cleaning, validation, and leak testing per clinical standards to maintain patient safety.
The unit uses an aluminium body with a PPS bonnet and FPM elastomers, delivering corrosion resistance and chemical compatibility across humid or mixed-gas environments. This construction supports longevity in hospital and lab settings, reduces downtime from wear, and provides robust performance in oxygen-containing systems.
Medical devices, analytical instruments, and compact automation modules benefit from the RM1H-1GD-NAV's high flow, precise adjustment, and small footprint. It enables reliable gas and air regulation in space-constrained panels, reduces system complexity by combining flow and pressure control in a single unit, and supports compliant operation in regulated production environments.