YQQ-9 hydrogen pressure regulator with dual gauges , all-brass body , 0.02–0.25MPa outlet range . Built for industrial welding , cutting & lab H2 supply

Full Product Description

Overview

The YQQ-9 Hydrogen Pressure Regulator is engineered specifically for high-pressure hydrogen gas cylinders. Its all-brass body provides excellent resistance to hydrogen embrittlement and ensures a durable, leak-tight seal even under continuous industrial use. Whether you are running a welding station, a metal-cutting operation, or a research laboratory, this regulator delivers consistent, reliable hydrogen delivery every time.

How It Works

Connected between a high-pressure hydrogen cylinder and your downstream equipment, the YQQ-9 reduces cylinder pressure (up to 15 MPa) down to a precise working pressure between 0.02 and 0.25 MPa. The dual-gauge layout lets you monitor both cylinder fill level and active output pressure at a glance — no guesswork, no surprises.

Construction & Materials

1.Body: Precision-machined brass for corrosion resistance and hydrogen compatibility

2.Diaphragm & Valve Seat: Engineered for H₂ service with tight sealing tolerances

3.Gauges: Analog pressure gauges with rubber bumper guards to absorb on-site impact

4.Inlet: Hydrogen-standard left-hand threaded connection (prevents accidental cross-connection with oxygen or other gases)

5.Outlet: Barb-style hose nipple for quick, secure tubing attachment

Safety First

Hydrogen is a highly flammable gas. The YQQ-9 incorporates an integrated overpressure relief mechanism that automatically releases excess pressure if the outlet exceeds safe limits. Combined with the left-hand inlet thread — which physically prevents mixing with oxygen regulators — this regulator is designed to minimize human error and maximize operator safety.