Flow / Pressure Regulators

Maintain full control over your shielding gas supply with the STAHLWERK pressure regulator. Designed for Argon, CO₂, and mixed gases, it delivers up to 200 bar and 32 L/min with reliable, consistent precision. Solid brass construction, easy-to-read dual gauge display, and universal W21.8 x 1/14" compatibility. The ideal choice for demanding TIG, MIG, and MAG welders.

The flowmeter regulators set at 3.5 bars are equipped with a graduated column (rotameter) providing precise gas flow readings, ideal for TIG welding of stainless steel and aluminum. Available in OX versions with flow rates of 7 and 15 l/min, these models ensure optimal control for superior welding quality.

Discover our oxygen pressure regulator, available in multiple references to meet your specific needs. With a pressure gauge reading up to 315/60 bar and a maximum pressure of 35 bar, this regulator is compatible with various connection types: Type C with M16x150, G1/4, or G3/8 inputs. Each model weighs 1.8 kg, ensuring optimal stability and reliability. This product is part of our comprehensive range of pressure regulators, designed to deliver high-quality performance.

This regulator is designed for use with neutral gases, offering a bar graduation of 315/16 and a maximum pressure of 10 bar. It features a Type C inlet and an M16x150 outlet. Weighing only 1.8 kg, it combines lightness and robustness for reliable use in your applications.

The OX-AD Dual Panel is designed for the safe distribution of non-corrosive gases in industrial installations. Supplied ready for installation with its protective enclosure, quarter-turn valves, purge system and integrated flashback arrestors, it provides reliable protection for gas networks operating up to 20 bar.

Control every liter of flow with precision.
The Dynaflow Nitrogen 0–50 L/min ZN 7602 provides fine and stable adjustment for demanding industrial applications. Designed for direct integration into a network, it ensures reliable performance under constant pressure.

The Dynaflow is a high-precision flow regulator designed for applications requiring fine flow adjustments. For optimal performance, a stable inlet pressure of 3.5 bars is required. Adaptable to various networks, the Dynaflow can handle flow rates up to 100 l/min.

This product is ideal for users needing precise and reliable regulation in their operations.

The Dynaflow is a precise flow regulator, requiring a stable inlet pressure of 3.5 bars. It is ideal for fine-tuning flow rates in various applications and can handle up to 150 l/mn for different gases (O2, He, H2, N2, Air, and mixtures). Custom options are available upon request.

Discover our armored regulator from the 3S range, designed according to EN 585 / ISO 2503 standards for maximum durability and safety. It features a monoblock brass body, a shock-absorbing cellular polychloroprene coating, and dustproof pressure gauges.

Perfectly adapted for the very specific power-supply of the electrical TIG/MIG welding units, the built-in adjustment wheel is graduated from 0, 6, 8, 10, 12, 15, 18, 22,26 l/mn with an extra maxi setting for a possible inerting operation (neutral atmosphere).

Perfectly adapted for the use of pure and inert gases that need a very stable outlet pressure, as well as a very fine setting of this outlet pressure, equipped with a stainless steel diaphragm.

The DEI regulator for Argon/CO2 gas cylinders is the essential tool for professional welders aiming for excellence in their work while achieving significant gas savings. 

Discover the bottle regulator with pressure gauge from the EWM brand at HD Soudage. Compliant with ISO 2503, this single stage regulator offers precise and continuous adjustment up to 230 bar.

Equipped with a manometer to display the pressure, this quality product simplifies your welding operations

Pre-set flow regulator from 4 to 26 l/min

ISO 7289 female inlet.

Second stage pressure regulator for neutral gases (nitrogen, argon) suitable for applications using pure and inert gases. 

Equipped with a stainless steel diaphragm, output pressure adjustment from 0-35 bar.

Allows a very stable output pressure and a very precise adjustment.

Perfect for feeding laser cutting machines. 

The neutral gas large flow pressure regulator allows a standard pressure to deliver from 20 to 280 NM3/H. It can be used as a first pressure regulator, in neutral gas, to supply several dozen welding stations.

It is recommended to mount this regulator only on bottles of B50 = 10 m³ or on bundles of bottles.

External plastic tube with nut all graduations. Guaranteed French manufacturing

Delivery France and Europe in 48 hours.

Frosting issue on your Ar/CO2 regulator? The solution is to heat the gas to ensure a constant flow.

CO2 is a cold gas, and it needs to be heated for use in MIG welding protection.

Model with gas outlet under pressure, adjustable from 1-10 bar max. Equipped with a 125 W heater, powered by 220 V Single-phase.

Made in France by LE LORRAIN, 2-year warranty

Regulator for 10 Kg or 35 Kg PROPANE bottle, industrial type. Shielded model with a pressure setting up to 2.5 bar.

Ideal for feeding an oxy-propane or aero-propane cutting torch.

BESTSELLER product

SPECIAL heater for the implementation of CO2 or neutral gas from a bottle in order to avoid cooling or freezing of the regulator and the installation.

Mounting on carbon dioxide bottle.

Helps heat and maintain CO2 in the gaseous phase.

LB21 pressure regulator

Gas : Argon

Graduation : 315b/ 20 l/mn

Flow/ pressure : 15 l/mn

Inlet : C

Outlet : 12x100 R

Weight : 1,08 kg

Made in France. 

Station accessories - electric heater.

Gas :  neutral gas : CO2 or Nitrogen

Made in France. 

Type : DETECOL flow-rate pressure regulator 30 l/mn - neutral gas 

Made in France. 

This family of regulators used mainly with nitrogen can be used to purge refrigeration installations, inflate shock absorbers, inert large diameter pipes, etc.

We recommend mounting these regulators only on cylinders from B11 = 2 m3 to B50 = 10 m3 or on cylinder bundles.

Adjustable output pressure: 1 - 60 b

LB21 pressure reducing set. 

Gas : Nitrogen 

Graduation : 315b/120 l/mn 

Flow/pressure : 100 l/mn

Inlet : C

Outlet : 16x150 R 

Weight : 1,08 kg 

Made in France. 

LB21 pressure reducing set. 

Gas : Nitrogen 

Graduation : 315b/16b 

Flow/pressure : 10bars 

Inlet : C 

Outlet : 16x150 R 

Weight : 1,08 kg 

Made in France. 

DM type double flowmeter neutral gas pressure regulator 30 l/min.

LB21 pressure reducing set. 

Gas : ARGON/CO2 

Graduation : 315b/ 38 l/mn 

Flow/pressure : 25 l/mn

Inlet : C 

Outlet : 12x100 R 

Weight : 1,08 kg 

Made in France. 

DDI pressure regulator 

Gas : Acetylene 

Inlet type : H 

Weight : 1,040kg 

Made in France. 

3S type shielded pressure Pressure regulator 

Gas : ARGON/CO2 38 l/mn 

Inlet type : C 

Outlet : 12x100 R 

Weight : 1,780 kg 

Made in France. 

Genuine LE LORRAIN regulator, for industrial Acetylene cylinder.

This armored model has a one-piece carcass which very effectively protects the pressure gauges.

Ideal for cylinders on carts for work on site.

Neutral gas pressure regulators 

Type : DDI pressure regulator 

Gas : Neutral gas 

Inlet type : C 

Weight : 1,040 kg 

Made in France. 

LB21 pressure reducing set

Gas : Acetylene 

Graduation : 40b/2,5b 

Flow/pressure : 35 m3/h - 1,5 bars 

Inlet : H 

Outlet : 16x150 L 

Weight : 1.08kg 

Made in France.

LB21 pressure reducing sets 

Gas : Oxygen 

Graduation : 315b/16b 

Flow/pressure : 35m3/h - 10 bars 

Inlet : F 

Outlet : 16x150 R 

Weight : 1,08 kg 

Made in France. 

Oxygen pressure regulator 

Type : DDI pressure regulator 

Gas : Oxygen 

Inlet type : F 

Weight : 1,040 kg 

Made in France. 

High flowrate pressure regulator

Gas : neutral gas 

Graduation : 315/16 bars 

Maxi pressure : 11 bars

Inlet : C 

Outlet : 20x150 R 

Weight : 4,100 kg 

Made in France. 

DM type single flowmeter neutral gas pressure regulator 30 l/min 

Made in France.

3S shielded pressure regulators with electric heater 220 V/125 W 

Gas : CO2 

Graduation : 315 B / 40 l/mn

Flow pressure : 25 l/mn 

Inlet : C 

Outlet : 12x100 kg 

Made in France. 

Flow regulator for ARGON/CO2 

Type : preset flow rate regulator 4 to 26 l/mn + max 

To be mounted on a stable piping at 3.5 bar for ARGON/CO2 mixture. Can be mounted on a valve support. 

Rear inlet. 3/8 gas right-hand thread. 

PROPANE regulator, adjustable output pressure from 1 to 6 bars.

Mounting on 13 kg or 35 kg PROPANE bottle, any brand.

Cost-effective product, ideal for feeding a torch for oxy-fuel cutting with oxygen and propane.

Rebar work, dismantling.

Manufactured by LE LORRAIN, France.

Regulator system station - Semi automatic expansion stations 

Type : Semi-automatic neutral non-corrosive gas expansion unit. CEN10/50-BP 10 bars/50 nm3/h 

Inlet : 21.7 x 1.814  - male right - TYPE C 

For all non-corrosive gases. 

Twin board. (1 oxygen pressure reducer + propane pressure reducer) supplied with casing, relief valve and built-in FBA. 

Made in France. 

Wall-mounted expansion unit - for all non-corrosive gases. 

Quadruple board (specify the type of gas in the order). Supplied with casing, valve, relief valve and built-in FBA. 

Made in France. 

For all non-corrosive gases. 

Type : triple board (specify the type of gas in the order). Supplied with casing, valve, relief valve and built-in FBA. 

Made in France. 

For all non-corrosive gases. 

Simple board. (Neutral gas) supplied with casing, valve, relief valve (graduation 38 or 20 l/mn to be specified on the order). 

Made in France. 

For all non-corrosive gases. 

Type : Simple board (all combustible gases) supplied with case, valve, relief valve and incorporated FBA (Flash-back arrestor). 

Made in France. 

For all non-corrosive gases. 

Type : Twin board (specify the type of gas while ordering). 

Made in France. 

For all non-corrosive gases. 

Type : Twin board. (1 oxygen pressure reducer + ethylene pressure reducer) supplied with casing, relief valve and built-in FBA. 

Made in France. 

For all non-corrosives gases 

Type : Pressure regulator with neutral gas column. Supplied with casing, valve, relief valve. 

Made in France. 

For all non-corrosives gases. 

Simple board (oxygen or nitrogen) supplied with case, valve, relief valve, and incorporated FBA (flashback arrestor). 

Made in France. 

L2C2 pressure regulators are regulators with both pressure gauges enclosed in a single flexible rubber housing. Their compactness and their installation, at the back of the regulator/cylinder, limit shocks. They are ideal for workshops with separate trolleys.

For more information, please feel free to contact us.

Second expansion pressure reducer - Second expansion for all non-corrosive gases. 

Graduation : 10 bars 

Pressure/service flow rate : 5 bars / 46 m3/h

Made in France. 

Second expansion pressure reducer

Graduation : 2,5 bars

Pressure/service flow rate : 2 bars / 15 m3/h

Made in France. 

High flowrate pressure regulator

Gas :acetylene 

Graduation : 40/é,5 bars 

Maxi pressure : 1,5 bars

Inlet : H 

Outlet : 20x150 L 

Weight : 4,100 kg 

Made in France. 

Delivered in 24h in France and Europe. 

Second expansion pressure reducer - Second expansion for all non-corrosive gases. 

Graduation : 16 bars 

Pressure/service flow rate : 12 bars / 300 m3/h

Made in France. 

Second expansion pressure reducer - Second expansion for all non-corrosive gases. 

Graduation : 6 bars 

Pressure/service flow rate : 3 bars / 30 m3/h

Made in France. 

Ideal for purging refrigeration systems and inflating shock absorbers, this nitrogen regulator gauge offers a reliable and efficient solution for your industrial applications. Designed for use with bottles ranging from B11 to B50.

Regulator High-flow OXYGEN. For use on gas cylinders or frames of any brand, equipped with a cylinder-type outlet. Also available with FRAME-type connection.

Adjustable outlet pressure from 1 to 16 bar. Suitable for oxy-cutting site applications, supplying multiple heating or cutting torches.

Manufactured by Le Lorrain. "Bestseller" product

Second pressure regulation - Pipe pressure reducer 

Rear inlet. Male 3/8 gas right-hand thread. 

Type : DM BP PRO or AC pipe pressure regulator 

Made in France. 

Second pressure regulation distribution. Bracket with valve.

Rear vertical. Male 3/8 gas right-hand thread. Supplied with nut and end-piece to braze.

Front outlet. Male 3/8 gas right-hand treading.

Made in France.

Flow regulator for ARGON/CO2 

To be mounted on a stable piping at 3.5 bar for ARGON/CO2 mixture. Can be mounted on a valve support. 

Type : Preset flow rate regulator position 0+6 to 26 l/min + max. 

Made in France. 

Pire pressure reducer 

Type : DM BP argon pipe pressure regulator 0 to 20 l/mn 

Made in France.

High pressure regulator mainly used to carry out trials or tests under high pressure with nitrogen - Graduation: 315/60 bars.

Adjustable outlet pressure: 1 - 40 bar

Inlet connection for mounting on cylinders of any brand with pressure of 200 bars or 300 bars.

Area of ​​use: inflating shock absorbers, purging the air conditioning network, refrigeration maintenance, pipe testing.

Also available with outlet pressure: 60 bars and 105 bars

DM type single flowmeter neutral gas pressure regulator 15 l/min

Made in France. 

Allows the use of oxygen from an industrial cylinder with adjustable flow from 0–15 l/min.
Simple use and flow adjustment via the column. Flow setting is easily visualized thanks to a ball inside the column.
Sold individually.

High-flow regulator for ACETYLENE gas. Frame mounting (set of 9, 18, or 20 cylinders depending on the brand) equipped with a FRAME-type outlet connection.

Adjustable pressure: 0.5 - 2.5 bar

"Bestseller" product, permanently in stock.

High-flow regulator for OXYGEN gas for frame mounting (cylinder bundle), all brands. Inlet connection type: FRAME.

Suitable for distributing oxygen to multiple users: oxy-cutting, heating of large parts, thermal lance cutting, slice, oxyfil.

Adjustable pressure: 1 - 16 bar

Best-selling product, permanently in stock.

Real and only armored pressure regulator with a one-piece forged brass body protecting the pressure gauges. The armored regulators in the 3s range benefit from triple protection:

Cellular polychloroprene protection for shock absorption.

Oversized one-piece forged brass body.

Separate dustproof pressure gauges.

Adjustable flow rate: 0–25 l/min

Allows flow adjustment from 0 - 40 l/min from a tapping on a pipeline (max pressure 6 bar).

Pressure gauge protected by a rubber cap.

Sold individually.

Pipeline regulator to be mounted on piping with a pressure range from 6 bar minimum to 20 bar maximum, for oxygen and inert gas.

Regulator flowmeter for mounting on argon and argon mixture cylinders.

Suitable for TIG welding of stainless steels, where it's necessary to supply a welding station and simultaneously perform pipe purging/inerting.

Brand Le Lorrain = quality and durability, after-sales service handled by our team.

Regulator for cylinder mounting – preset to 3.5 bar with 2 columns graduated up to 15 L/min – GAS Oxygen

Ideal for precise control of oxygen flow for bubbling or supplying specific equipment.

Regulator for Methane/Ethylene gas cylinder. Suitable for industrial cylinders in France.

Sturdy construction for workshop or outdoor use.

Regulator to be mounted on COMPRESSED AIR gas cylinder, industrial quality

Adjustable pressure: 0 - 10 bar, Flow rate: 35 Nm³/h

Sturdy construction and rubber protection for effective shock resistance.

Mounted on industrial cylinder (FRANCE) for inert gases such as Argon, Argon mixtures, and Nitrogen. Gas flow adjustment from 0 - 20 l/min

Shielded LE LORRAIN regulator featuring a forged brass one-piece body for intensive use and harsh conditions.