Pneumatic shut-off valves

Shut-off valves for compressed air. Push-in shut-off valves designed for calibrated tekalan tubing. In the following category, you will find ball valves designed for closing and opening the air flow in a pneumatic installation (hose). The air shut-off valve is lightweight, compact, and effectively cuts off the air source. In this category, we only present lightweight (low-pressure) valves; we also offer hydraulic valves made of free-cutting steel (up to several hundred bar), which are suitable for installation in compressors or industrial pneumatic systems. Our offer includes: pneumatic push-in valves without exhaust, push-in valves with exhaust, screw-in valves with internal threads 

Shut-off valves

Shut-off valves are an indispensable element of pneumatic systems, responsible for controlling the flow of gases or liquids in industrial systems. Hydron's offer includes a wide selection of shut-off valves, which stand out for their high quality of workmanship and reliability of operation, adapted to various applications. These products are designed for efficiency and durability, making them an ideal solution in applications requiring precise shut-off of the flow. Shut-off valves in the Hydron store are made of materials resistant to corrosion and mechanical damage, such as stainless steel or brass, thanks to which they are perfect for difficult industrial conditions. Our valves are available in various sizes and pressure ranges, which allows for their use both in high-pressure systems and in installations with high flow.

Technical data for pneumatic push-in valves : 

• Working pressure : 0 - 10  bar
• Operating temperature : from -20 to +60  °C
• Medium : compressed air, vacuum, non-aggressive liquids
• Material : body plastic, nickel-plated brass
• Available for hose size : 6mm, 8mm, 10mm, 12mm

FAQ Answers to questions about shut-off valves

What are shut-off valves and what are they used for ?

Shut-off valves are fitting elements that allow for the complete shut-off of the medium flow (gases or liquids) in the system. Their main function is to ensure safety, allow for system maintenance, or isolate its fragments to avoid medium loss or the risk of failure.

What materials are most commonly used for the production of shut-off valves ?

Stainless steel, brass, cast iron, and high-chemical-resistance plastics such as PTFE (Teflon) are most commonly used for the production of shut-off valves. The choice of material depends on the specifics of the application, such as pressure, temperature, and type of medium.

What are the criteria for selecting shut-off valves for high-pressure industrial applications?

Key criteria are: Material of construction – resistant to high pressures and the working medium; Maximum working pressure – compliance with application requirements; Operating temperature – resistance to high or low temperatures; Type of seals – selected for the type of medium to ensure tightness; Size and construction – matching the flow and system.

What are the differences in applications between shut-off and control valves?

• Shut-off valves are used to completely close the flow, while control valves allow for controlling its intensity.
• Shut-off valves are simpler in construction, while control valves have a more advanced mechanism that allows for precise flow adjustment.

What are the main types of damage to shut-off valves and how to prevent them?

Typical damage: Seal wear – prevention by using appropriate materials; Corrosion – choosing materials resistant to the medium and working environment; Mechanical damage – resulting from improper use or overloads. Regular maintenance and use according to the intended purpose minimize the risk.

What are the typical problems with shut-off valves in low-temperature applications ?

Problems include: Freezing of the medium, leading to blockage of the mechanism. Brittleness of materials, especially in the case of seals. The solution is to use materials resistant to low temperatures and thermal insulation.

What are the main advantages of push-in shut-off valves ?

• Ease of assembly thanks to quick-connect mechanisms.
• Compact design, ideal for limited space.
• Excellent tightness in pneumatic installations.

What are the typical sizes and pressure ranges for push-in shut-off valves ?

Push-in valves are available in sizes from 4 mm to 16 mm hose diameter. The working pressure range is usually from -0.9 bar to 16 bar.

What are the typical applications for push-in shut-off valves?

• Pneumatic installations in industrial automation.
• Compressed air systems in workshops.
• Precision installations in medicine and laboratories.

Are push-in shut-off valves suitable for use with chemically aggressive substances?

Yes, provided they are made of suitable materials, such as stainless steel or PTFE, resistant to chemicals.

What are the differences between push-in shut-off valves and other types of shut-off valves?

Push-in valves differ in construction – they allow for quick assembly and disassembly, while other types require tools and more complicated assembly.

What are the typical testing and certification methods for push-in shut-off valves?

Methods include:

• Tightness and pressure strength tests.
• Certificates of compliance with standards such as ISO 5208 or DIN EN 12266.

What safety features can be built into push-in shut-off valves?

• Mechanical locks preventing accidental opening.
• Appropriate marking for critical applications.
• Resistance to overloads thanks to robust construction.

Are shut-off valves suitable for use with chemically aggressive substances?

Yes, as long as they are made of chemical-resistant materials such as stainless steel, Hastelloy, or plastics such as PTFE.