We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Brass welding regulator with dual gauges and CGA-580 inlet

Miller-Smith Equipment

Miller-Smith Equipment 30-150-580 Welding Gas Regulator CGA-580 150 psi

SKU CH-6EFC-9ZPFB

Single-stage regulator for argon and nitrogen cylinders with CGA-580 inlet, delivering up to 150 psi

  • Product typeWelding Supplies
  • Single-stage design simplifies gas control for general welding
  • CGA-580 inlet connects directly to argon and nitrogen cylinders
  • 150 psi delivery range suits a variety of fabrication tasks
  • 0 in gauges show supply pressure up to 4,000 psi
  • Brass body with neoprene diaphragm resists corrosion in shop environments

Single-stage regulator for argon and nitrogen

The Miller-Smith Equipment 30-150-580 is a single-stage welding gas regulator designed for general-purpose use with argon and nitrogen cylinders. It connects via a CGA-580 inlet and delivers gas through a 5/8 in.-18 RH internal outlet connection. The brass body and neoprene diaphragm provide durability for workshop environments.

Steady delivery pressure up to 150 psi

Under sustained operation the regulator maintains a delivery pressure range of 150 psi while the supply pressure gauge reads up to 4,000 psi. The maximum inlet pressure is rated at 3,500 psi. The Sure Seat filtered seat helps maintain consistent flow by reducing contamination during extended welding sessions.

CGA-580 inlet limits cylinder compatibility

The CGA-580 inlet connection restricts use to cylinders fitted with that specific valve standard. The 2.0 in. body diameter and UL listing confirm compliance with recognised safety standards for this connection type. Buyers needing a different inlet standard or a two-stage pressure reduction design will require a different regulator model.

How it compares

Measured against everything we stock in Welding Equipment & Positioners, at today’s prices. Recalculated every night.

Price $142.99
Pricier than about 72% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameMILLER ELECTRIC
Product typeWelding Supplies

Questions about this item

Does the 2.0 in. brass body run hot or draw extra power during all-day welding?

The single-stage brass body has no heating element and consumes no electricity, so it adds no heat or power draw beyond the gas flow itself.

What cylinder fitting and hose thread must I already have to connect this CGA-580 regulator?

You need a cylinder with a CGA-580 valve outlet and a welding hose or torch that accepts a 5/8 in.-18 RH internal outlet thread.

Will this 150 psi regulator work with my older torch that only handles lower pressures?

The delivery range goes up to 150 psi; you must set the outlet pressure to match the torch manufacturer's maximum or use a downstream flow control.

More in Welding Equipment & Positioners

Similar items