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Miller-Smith Equipment

Miller-Smith Equipment 30-50-510 LPG CGA-510 welding regulator

SKU CH-4QH5-9BH5Z

Single-stage LPG regulator with CGA-510 inlet, 50 psi delivery and 400 psi maximum inlet pressure

  • TypeWelding Supplies
  • Single-stage LPG regulator with CGA-510 inlet for propane cylinders
  • 50 psi delivery range backed by 400 psi max inlet rating
  • 0 in brass body with neoprene diaphragm for durability
  • UL Listed safety certification for general-purpose welding use
  • Bright nickel-plated bonnet and Sure Seat filtered seat included

LPG regulator with CGA-510 inlet

The Miller-Smith Equipment 30-50-510 is a single-stage cylinder regulator built for liquefied propane service. It connects to a CGA-510 tank valve and delivers gas through a 9/16 in.-18 LH B outlet. The brass body and neoprene diaphragm are rated for a maximum inlet pressure of 400 psi. It carries a UL listing for general-purpose welding applications.

Delivery pressure fixed at 50 psi

The regulator supplies a non-adjustable delivery pressure of 50 psi, making it suitable only for equipment designed to operate at that exact outlet pressure. A 2 in. supply-pressure gauge reads up to 400 psi so the operator can monitor cylinder contents. There is no downstream pressure gauge included. Buyers who need adjustable outlet pressure or a different fixed setting cannot use this model.

Steady output under continuous flow

The single-stage design maintains the 50 psi set point while cylinder pressure declines, though outlet pressure will rise gradually as supply pressure drops. The Sure Seat filtered seat and nickel-plated bonnet resist contamination during extended use. The 2.0 in. body diameter allows compact mounting on portable carts. Units requiring precise pressure stability at very low cylinder pressures may need a two-stage alternative.

Highlights

  • Single-stage LPG regulator with CGA-510 inlet for propane cylinders
  • 50 psi delivery range backed by 400 psi max inlet rating
  • 0 in brass body with neoprene diaphragm for durability
  • UL Listed safety certification for general-purpose welding use
  • Bright nickel-plated bonnet and Sure Seat filtered seat included

Specifications

BrandMILLER ELECTRIC
TypeWelding Supplies

Questions about this item

What does the 50 psi delivery pressure mean when the regulator is on a propane cylinder?

It limits the downstream line to a maximum of 50 psi so torches and equipment see a steady working pressure.

How does the CGA-510 inlet connection control what cylinders can be used?

The CGA-510 nut and nipple fit only cylinders equipped with the matching LPG valve outlet.

What does the 9/16 in.-18 LH B outlet require for hose attachment?

A 9/16 in.-18 left-hand B-size fitting on the hose or torch for a secure threaded seal.

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