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Cylinder Valves: Discover Our Full Range for All Gas Applications

Gas cylinder valves are essential components for controlling the flow of gas in the gas cylinders. The primary function of a cylinder valve is to open or close to allow the stored gas to escape or to contain it inside. Cylinder valves are essential for maintaining safe operation and ensuring proper gas delivery across various applications such as welding, cutting, manufacturing processes, etc.

Whether you're looking for standard gas cylinder valves, small cone valves, residual pressure valve, packed seal valves or valve with integrated pressure regulator, or custom solutions, Rotarex wide variety of products offer reliable performance, material compatibility, and full compliance with international safety and quality standards.

Explore our selection below to find the right gas cylinder valve solution for your specific requirements.

Gas Cylinder Valves

Standard gas cylinder valves

  • Standard valves - C100/C105/C110/C115
    C100/C105/C110/C115
    O2, N2O, Mixtures
    Max. Inlet pressure: 300 bar
    O-ring seal type
  • Standard valves - C400/C405
    C400/C405
    Acetylene
    Max. Inlet pressure: 30 bar
    O-ring seal type
  • STANDARD VALVES Y TYPE - C042/C047
    C042/C047
    Inert, mixtures and flammable gases
    Max. Inlet pressure: 300 bar
    Dual port
  • Standard valves - C200/C205/C210/C215
    C200/C205/C210/C215
    Inert, mixtures and flammable
    Max. Inlet pressure: 300 bar
    Standard valves
  • Specific chlorine applications - C990
    C990
    Chlorine and sulfure dioxyde
    Max. Inlet pressure: 200 bar
    O-ring
  • Standard valves - C040/C045
    C040/C045
    CO2 & CO2 Mixture
    Max. Inlet pressure: 200 bar
    Standard valves

Packed Seal Valves

  • High pressure cylinder valves, packed needle stem design, for high purity gases - D100
    D100
    High pressure cylinder valve
    Metal / Metal seat
    3.3mm orifice
  • High pressure cylinder and bundle valve with pneumatic actuator for corrosive gases - D131
    D131
    Pneumatic actuator
    Metal / Metal seat
    2.8mm orifice
  • 2-pieces sturdy stem design high pressure cylinder valves for corrosive gases – D160S
    D160S
    2-pieces sturdy stem design
    Soft Seat
    6mm orifice
  • High pressure cylinder valves with pneumatic actuator for corrosive gases – D156S
    D156S
    Pneumatic actuator
    6 mm orifice
    Soft seat
  • Spring loaded dual port cylinder valve for corrosive gases – D195S
    D195S
    Spring loaded
    Soft seat
    6mm orifice
  • Drum valve, 2-pieces sturdy stem packed type design for corrosive and toxic gases – D154S
    D154S
    Drum valve
    soft seat
    6mm orifice
  • Drum valve, 2-pieces sturdy stem packed type design for corrosive and toxic gases – D158
    D158
    Drum valve
    soft seat
    12mm orifice
  • High pressure, packed type cylinder valve for corrosive and toxic gases with non-return valve – D183
    D183
    With non-return valve
    Soft reversed seat
    12mm orifice

Small cone gas valves

  • Small cone valves - C972/C973
    C972/C973
    Small cone
    O2, N2O & Mixtures
    Max. Inlet pressure: 200 bar
  • Small cone RPV valves - C978
    C978
    RPV Small cone
    O2 and N2O
    Max. Inlet pressure: 200 bar
  • Small cone RPV valves with integrated manometer - C878/C879
    C878/C879
    RPV Small cone
    O2 and inert
    Max. inlet pressure: 200 bar
  • Small cone valves - C974/C975
    C974/C975
    Small cone
    Inert, mixtures and flammable
    Max. Inlet pressure: 200 bar
  • Small cone RPV valves - C979/C980
    C979/C980
    RPV Small cone
    Inert, flammable
    Max. Inlet pressure: 200 bar
  • Small cone RPV valves - C969
    C969
    RPV Small cone
    CO2
    Max. Inlet pressure: 200 bar

Cylinder Valve types

Rotarex includes four main type of valve technologies for industrial gas or specialty gas cylinder valves.

Standard valves provide the basic function of opening and closing the compressed gas flow, handwheel operated. They are available in different configurations: normal, small cone, or packed seal versions, and are typically used in the industry processes such as welding or cutting, laboratory applications, and production environments.

Dual-port valves is set to provide direct access to both the liquid and gaseous phases of the gas inside a cylinder through two separate outlets.

Residual Pressure Valves (RPVs) design maintains a small amount of residual pressure inside the gas cylinder to protect its interior. This prevents ambient air, moisture, and other impurities from entering, reducing the risk of internal corrosion and extending the cylinder’s service life, and reduce the maintenance activity needs. Discover the new generation of Rotarex RPV, allowing faster filling up to 300 bar.

Valves with Integrated Pressure Regulators (VIPRs) offer a complete and compact solution. A VIPR allows you to control the gas flow and reduce the outlet pressure in a single unit, thanks to its built-in pressure regulator.
Cylinder Valve types
Compatible Gases and Fluids: Safety Starts with the Right Valve

Compatible Gases and Fluids: Safety Starts with the Right Valve

Each gas has its own chemical properties that affect material compatibility, pressures, etc. Each cylinder valve must therefore be selected with careful consideration of these gas characteristics to ensure safe and enhanced performance.

  • Inert gases: Inert gases like breathing air, Argon or Nitrogen are compatible with standard valve, frequently used in welding or laboratory.
  • Carbon Dioxide: CO2 liquefy under pressure, cylinder valve must be resistant to thermal shock and flow temperature.
  • Oxygen: O2 requires valves oxygen-compatible material to prevent combustion.
  • Helium: He is a very small and light molecule that requires high quality sealing to avoid leakage.
  • Nitrous Oxide: N2O is used in medical and industrial applications, valves must be compatible with liquefied gases.
  • Acetylene: C2H2 is chemically instable and flammable under pressure. Valves must be suitable for acetylene service with suitable features.

How to Select the Right Valve: 5 Key Points

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    1. Body Material:

    Most Rotarex gas cylinder valves are available in brass or chrome plated brass. Make sure the body material is compatible with the gas you will be using. Need more information? Contact one of our engineers would be happy to discuss the pros and cons of each option to help you choose the best solution.
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    2. Working Pressure:

    Different models are designed for different working pressure to fit with your applications need. For high pressure (200 - 300 - 450 bar / 2900 - 4350 - 6525 psi) the cylinder valves range covers any requirements. The available options are clearly indicated on each product page.
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    3. Outlet Pressure:

    Especially for VIPR: different models are meant for different outlet pressure to fit with your applications need. For low pressure in use (4,5bar/50psi) and accurate flow (from 0-2 to 0-25 Lpm) our VIPR range covers any requirements.
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    4. Inlet Connections:

    Specific cylinder valve connections are required for each gas type. The most common connection types are ¾’’-16 UNF and 25E. Other standards and dimensions are available on request.
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    5. Outlet Connections:

    VIPR: According to your national standards the Indutec valves covers any requirements.
    Valves:According to your national standards and according to upstream device to be connected our valves covers any requirements.
Frequently Asked Questions About Cylinder Valves
What is the main function of a cylinder valve?

A cylinder valve controls the release of gas from the cylinder, allowing suitable connection to equipment and preventing leaks when closed.

What is the difference between a standard valve, an RPV, and a VIPR?
  • Standard valve: Basic on/off control.
  • RPV (Residual Pressure Valve): Maintains slight positive pressure to prevent contamination.
  • VIPR (Valve with Integrated Pressure Regulator): Combines on/off control and pressure regulation in one unit.
Can I use the same valve for different gases?

No. Valves are designed for specific gases, pressures, and standards. Using the wrong valve can cause leaks, contamination, or dangerous reactions.

How do I choose the right valve for my application?

Selection depends on the gas type, pressure, required purity, and applicable standards. Consider features like residual pressure control, integrated regulation, or special materials for corrosive gases.

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