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Harris KH1124 two-stage high-purity gas regulator for argon, helium, nitrogen

Harris Products Group

Harris Products Group KH1124 High Purity Gas Regulator Two Stage Argon Helium Nitrogen

SKU CH-VFRH-GNFSJ

Two-stage high-purity regulator for argon, helium and nitrogen with 350 psig max inlet and 50 psig outlet

  • Product typeWelding Supplies
  • Two-stage design delivers stable outlet pressure up to 50 psig
  • Compatible with argon, helium and nitrogen for versatile gas handling
  • Cylinder-mounted with 0.965 in.-14 NGO right-hand inlet connection
  • Brass 1/8 in. tube-fitting outlet ensures secure downstream flow
  • High-purity construction meets California Proposition 65 chemical disclosure requirements

Two-stage regulator for argon helium nitrogen

The Harris KH1124 is a high-purity gas regulator designed for cylinder mounting with argon, helium or nitrogen. Its two-stage construction reduces outlet pressure variation as the cylinder empties, making it suitable for applications that demand consistent flow control. The unit accepts a maximum inlet pressure of 350 psig and delivers up to 50 psig at the outlet.

Knob control and standard fittings simplify fitting

Installation uses a right-hand 0.965-14 NGO male inlet thread that screws directly onto the cylinder valve. A knob on the body adjusts the outlet pressure, while the 1/8 inch female tube fitting on the outlet accepts common tubing. No special tools are required beyond a wrench for the inlet nut; the most common issue is cross-threading the inlet connection if the cylinder valve face is dirty or damaged.

Verify cylinder valve thread and gas compatibility

Before ordering, confirm that your cylinder valve matches the 0.965-14 NGO right-hand male thread specified for the inlet. The regulator is rated only for argon, helium and nitrogen; do not use it with oxygen, fuel gases or any other media. Check that your system can operate within the 50 psig maximum outlet pressure and that the 1/8 inch female tube outlet suits your downstream plumbing.

How it compares

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Price $514.99
Pricier than about 90% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameHARRIS
Product typeWelding Supplies

Questions about this item

How do I confirm the regulator is delivering the correct outlet pressure after installation?

Turn the control knob and watch the outlet gauge; it should hold steady up to 50 psig with a 350 psig inlet supply.

Which fittings come with the Harris KH1124 and what must I provide separately?

The unit includes a 0.965 in.-14 NGO male inlet and a 1/8 in female tube-fitting outlet; you add the gas cylinder and downstream tubing.

Is the two-stage KH1124 the right choice for argon, helium or nitrogen at high inlet pressure?

Yes — it is rated for argon, helium and nitrogen with a 350 psig maximum inlet and two-stage control for stable 50 psig outlet.

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