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Heavy-Duty Single-Stage Pressure Regulators

Series 40™ single stage regulators comprise a complete line of versatile regulators for welding, cutting, heating and other industrial applications. Heavy duty construction and simplified design provides high gas flow and longer trouble-free operation.

Series 40 Oxygen Regulator
  • Series 40 Oxygen Regulator
  • Series 40 Cut-A-Way
  • Series 40 Oxygen Regulator With Hard Hat™
  • Series 40 Acetylene Regulator
  • Series 40 Acetylene Regulator With Hard Hat™
Base Model Starting at:
$288.70 List Price (US$)

Buy Now

Additional Models and Pricing

Regulator Product Guide


Resin Bonnet Insert

Allows for smooth, easy adjustment even at high-pressure levels.

Color-Coded Labels

Identifies supply performance capabilities, easy gas service identification and technical information.

Nickel-Plated Bonnet

The nickel-plated bonnet, along with brass body, protects against corrosion.

Dual Filters Includes Smith's Sure Seat™ Technology

Dual Filters Includes Smith's Sure Seat™ Technology
All Series 40™ Single stage regulators contain our exclusive Sure-Seat™ technology for extended seat and regulator life.  Filtered seat prevents contamination from entering the seating area, reducing repair costs and down-time.

Stainless Steel Diaphragm

Large stainless steel diaphragm provides for precise control of pressure. Resists corrosion, leaking and freeze-up leading to extending service life.

External Relief Valve

Protects regulator from damage do to inadvertent high-pressure surge.  Relief valve will release excessive pressure and automatically reset.

Shatter-Resistant Gauge Lenses

2.5 inch corrosion-resistant polished brass gauges with shatter-resistant polycarbonate lenses.

True Blue Warranty

All 40 Series™ regulators are covered by the Miller True Blue® 3 YR. warranty.
 

Models

Stock #

XMT® 350 VS ArcReach™ 907224002

XMT® 450 VS ArcReach™ 907481002

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® S-Gun™ 951588

SuitCase® X-TREME™ 8VS ArcReach™ with Bernard® Q300 Gun 951584

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® S-Gun™ 951589

SuitCase® X-TREME™ 12VS ArcReach™ with Bernard® Q300 Gun 951581

Product Literature
Regulator Product Guide
Series 40 Flow Curves
Technical Data - Welding Hose
How To Use Flow Curve Data
Date Codes
 
ProcessesOxy-Fuel Cutting, Welding & Heating 
General specificationsNet Weight7.05 lb (3.20 kg) – 8.86 lb (4.02 kg)
Gas
Oxygen, Acetylene, LP Gas (Propane, Propylene or Natural Gas), Nitrogen
Regulator Cylinder Connection (CGA)
CGA540, CGA300, CGA510, CGA580
Connections
9/16"-15 RH or LH "B"
ApplicationsConstruction 
Fabrication 
Farm and Ranch 
Field Maintenance and Repair 
Home/Hobby 
In-Plant Maintenance and Repair 
Manufacturing 
Mechanical Contracting 
Metal Art/Sculpture 
Motorsports (car, truck, bike, etc.) 
Pipe Fabrication 
Rental 
Robotics/Automation 
Schools/Training 
Scrap/Demolition 
Ship/Boat 
Welding Projects 
Process Piping 
Refinery 
Petrochemical 
Power 
HVAC and Water Pipe 
Warranty True Blue With the best coverage in the industry, Miller's True Blue® Warranty [PDF] delivers unparalleled peace-of-mind.

Models

Stock # Manufacturer List Price US$    
  HD Acetylene regulator, 0-15 PSIG  40-15-300 $288.70   Buy Now
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  View Package Details      
 
Product Notes:

Heavy duty single stage acetylene regulator; CGA300 inlet connection, 9/16"-18 LH "B" outlet fitting, 400 PSI/Bar inlet gauge, 15 PSI/Bar red line outlet gauge.

       
  HD Acetylene regulator, 0-15 PSIG, W/Hard Hat™  40-15-300S $340.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage acetylene regulator; CGA300 inlet connection, 9/16"-18 LH "B" outlet fitting, 400 PSI/Bar inlet gauge, 15 PSI/Bar red line outlet gauge. Regulator comes with a Hard Hat™ gauge guard installed to protect the gauges.

       
  HD Acetylene regulator, 0-15 PSIG  40-15-510 $288.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage acetylene regulator; CGA510 inlet connection, 9/16"-18 LH "B" outlet fitting, 400 PSI/Bar inlet gauge, 15 PSI/Bar red line outlet gauge.

       
  HD Acetylene regulator, 0-15 PSIG, W/Hard Hat™  40-15-510S $340.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage acetylene regulator; CGA510 inlet connection, 9/16"-18 LH "B" outlet fitting, 400 PSI/Bar inlet gauge, 15 PSI/Bar red line outlet gauge. Regulator comes with a Hard Hat™ gauge guard installed to protect the gauges.

       
  HD Oxygen regulator, 0-175 PSIG  40-175-540 $288.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage oxygen regulator; CGA540 inlet connection, 9/16"-18 RH "B" outlet fitting, 4000 PSI/Bar inlet gauge, 200 PSI/Bar outlet gauge.

       
  HD Oxygen regulator, 0-175 PSIG, W/Hard Hat™  40-175-540S $340.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage oxygen regulator; CGA540 inlet connection, 9/16"-18 RH "B" outlet fitting, 4000 PSI/Bar inlet gauge, 200 PSI/Bar outlet gauge. Regulator comes with a Hard Hat™ gauge guard installed to protect the gauges.

       
  HD Oxygen regulator, 0-275 PSIG  40-275-540 $288.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage oxygen regulator; CGA540 inlet connection, 9/16"-18 RH "B" outlet fitting, 4000 PSI/Bar inlet gauge, 400 PSI/Bar outlet gauge.

       
  HD Nitrogen regulator, 0-275 PSIG  40-275-580 $288.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage oxygen regulator; CGA580 inlet connection, 5/8"-18 RH internal outlet fitting, 4000 PSI/Bar inlet gauge, 400 PSI/Bar outlet gauge.

       
  HD LP regulator, 0-50 PSIG  40-50-510 $288.70   Buy Now
  View Package Details      
  View Package Details      
 
Product Notes:

Heavy duty single stage LP regulator; CGA510 inlet connection, 9/16"-18 LH "B" outlet fitting, 400 PSI/Bar inlet gauge, 50 PSI/Bar outlet gauge. Regulator may be used for Propane, propylene or natural gas.

       
       

Most Popular Accessories

Stock# Manufacturer List Price US$   US and Canada Add to list

Inert Gas hose

6 ft (1.8 m) foot single inert gas hose

7294-1 $20.40  

H1400 Series Fixed-Flow Adaptors

Designed for welding operations or other applications requiring fixed gas flows are required. Installs in regulator outlet or directly on 30 PSIG pipeline outlet without regulator. Flows 20 SCFH @ 30 PSIG inlet pressure on Co2

H1400-20 $27.60  

H1400 Series Fixed-Flow Adaptors

Designed for welding operations or other applications requiring fixed gas flows are required. Installs in regulator outlet or directly on 30 PSIG pipeline outlet without regulator. Flows 30 SCFH @ 30 PSIG inlet pressure on Co2

H1400-30 $27.60  

H1400 Series Fixed-Flow Adaptors

Designed for welding operations or other applications requiring fixed gas flows are required. Installs in regulator outlet or directly on 30 PSIG pipeline outlet without regulator. Flows 39 SCFH @ 30 PSIG inlet pressure on Co2

H1400-40 $27.60  

H1400 Series Fixed-Flow Adaptors

Designed for welding operations or other applications requiring fixed gas flows are required. Installs in regulator outlet or directly on 30 PSIG pipeline outlet without regulator. Flows 50.5 SCFH @ 30 PSIG inlet pressure on Co2

H1400-50 $27.60  

Check valve pair- Regulator Mount

Reverse-flow check valves prevent the reverse flow of oxygen and fuel gases which can occur when a tip becomes clogged, or when one cylinder empties during use. Check-valves automatically close when outlet pressures drop below 1/2 PSIG

H698 $18.40  

Regulator Mount Flashback Arrestors

Flashback arrestor are designed to prevent the advancement of a flashback fire as well as the built in check-valve prevent the reverse flow of mixed gases, attaches to standard "B" fittings.

H753 $73.50 Buy Now

Hard Hat™ Regulator Guard

Made from rugged steel with a bright yellow, eight-enamel finish. Quickly and easily attaches to regulator. Fits Series 40™, HB1500 and HB2100 Series brass regulators.

HB190 $38.40  

Two Hose Manifold for Oxygen

Two-hose manifolds allow of the use of two hoses from one regulator eliminating the need for multiple regulatorcylinder setups; attaches to standard fuel "B" fittings.

NE135B $50.50  

Two Hose Manifold for Fuel

Two-hose manifolds allow of the use of two hoses from one regulator eliminating the need for multiple regulatorcylinder setups; attaches to standard oxygen "B" fittings.

NE136B $50.50  

Welding Hose

25 ft (7.6 m)"R" grade twin welding hose- 1/4 in (6 mm) ID diameter, "B" to "B" fittings

RL1131 $30.30  

Welding Hose

12.5 ft (3.8 m)"R" grade single welding hose- 3/16 in (5 mm) ID diameter, "B" to "B" fittings

RL121 $12.80  

Welding Hose

12.5 ft (3.8 m)"R" grade twin welding hose- 3/16 in (5 mm) ID diameter, "B" to "B" fittings

RL921 $18.30  

Welding Hose

20 ft (6.1 m)"R" grade twin welding hose- 3/16 in (5 mm) ID diameter, "B" to "B" fittings

RL935 $25.00  

Welding Hose

20 ft (6.1 m)"T" grade twin welding hose- 1/4 in (6 mm) ID diameter, "B" to "B" fittings

TRL1131 $58.70  
       
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