Harris
Harris KH1004 Hydrogen Regulator CGA-350 Welding
Single-stage hydrogen regulator with CGA-350 inlet, 0–50 psi delivery range and chrome-plated brass body
- Precise hydrogen control with 0 to 50 psi delivery range
- CGA-350 inlet fits standard hydrogen cylinders
- Single-stage design gives consistent outlet pressure
- Chrome-plated brass body resists corrosion in lab use
- Built-in needle and relief valves for safe operation
Hydrogen Regulator CGA-350
The Harris KH1004 is a single-stage specialty gas regulator built for hydrogen service on laboratory cylinders. It connects to a CGA-350 inlet and delivers a controlled outlet range of 0 to 50 psi through a 1/4 inch hose barb. The unit is rated for a maximum inlet pressure of 3,000 psi and includes a 2 inch supply pressure gauge reading up to 4,000 psi.
Needle Valve and Relief Valve
An outlet needle valve provides fine flow adjustment at the point of use. A built-in relief valve protects downstream equipment if the regulator seat leaks or the cylinder valve is opened too quickly. Both valves are integrated into the chrome-plated brass body so no extra fittings are required for basic laboratory setups.
Chrome-Plated Brass Body
The 2.125 inch diameter body is machined from chrome-plated brass with a neoprene diaphragm for hydrogen compatibility. The CGA-350 inlet threads directly onto standard hydrogen cylinders without adapters. The 1/4 inch hose barb outlet accepts common laboratory tubing for immediate connection to burners, analysers or purging lines.
Highlights
- Precise hydrogen control with 0 to 50 psi delivery range
- CGA-350 inlet fits standard hydrogen cylinders
- Single-stage design gives consistent outlet pressure
- Chrome-plated brass body resists corrosion in lab use
- Built-in needle and relief valves for safe operation
Specifications
| Brand | HARRIS |
|---|
Questions about this item
How often should the neoprene diaphragm be inspected or replaced?
Inspect the neoprene diaphragm at each cylinder change for cracks or swelling; replace it if the delivery pressure drifts outside the 0 to 50 psi range or if leakage appears at the relief valve.
What limits continuous flow when running hydrogen through the CGA-350 inlet all day?
The single-stage design means delivery pressure will rise as the cylinder pressure falls below the 3,000 psi maximum inlet rating, so cylinder depletion is the first practical limit.
Does the chrome-plated brass body run hot or make noise during extended laboratory use?
The regulator body stays at ambient temperature because gas expansion cooling offsets any friction heat, and there are no moving parts that generate audible noise during steady flow.
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