Order precise isolating valves by Parker Legris online
The Parker Legris range of isolating valves, including standard ball valves, axial and needle valves, provides a reliable means of opening and closing fluid systems.
Parker Legris Shut-off Valves for Precise Applications
Functionality and Areas of Application
Shut-off valves perform the central task of reliably opening or closing media flows in pipelines. They are indispensable in compressed air and fluid circuits when it comes to process safety and controllability. Parker Legris products are characterized by precise manufacturing and high repeatability during actuation. Whether in industrial pneumatics, cooling systems, hydraulics, or process lines – their valves ensure consistent performance and long-lasting operation.
Ball Valves – Fast Shut-off Without Pressure Loss
Ball valves are designed for quick opening and closing. The full bore ensures that pressure loss remains minimal. Especially in applications requiring frequent switching, they prove their worth through their low leakage rate and clear position control. The operating lever is ergonomically designed and allows for safe handling even with gloves. In pneumatic networks, ball valves help to immediately shut off entire pipeline sections – for example, during maintenance work or when starting up systems.
Needle Valves – Precise Flow Control
Needle valves offer sensitive regulation of flow rates. The linear travel allows even small quantities to be reliably metered. They are therefore ideal for test benches, dosing equipment, or hydraulic fine adjustments. The precise mechanics ensure that no deviation in flow characteristics occurs even after many actuation cycles. With accurate scaling, the set position can be reproduced at any time.
Materials: Stainless Steel or Brass
The choice of material is crucial for the service life and resistance to media. Stainless steel offers the highest corrosion resistance and is suitable for aggressive fluids, higher temperatures, and applications with increased hygiene requirements. Brass is an economical solution with very good mechanical properties, optimal for water, compressed air, and neutral fluids. Parker Legris manufactures both variants to uniformly high standards, so users can always rely on consistent quality.
Pressure and Temperature Ranges
The shut-off valves are designed for pressure ranges up to 10 bar, with stainless steel variants even covering up to 16 bar. The temperature range in the standard version extends from –20 °C to +120 °C. If required, special versions are available that also cover higher temperatures or extreme pressure ranges. The sealing materials used, such as NBR or PTFE, ensure reliable sealing even under changing conditions.
Connections and Standards
The valves are available in common connection sizes from G1/8 to G1. For international systems, NPT variants are also available. All models comply with relevant standards and are CE-compliant according to EU directives. Optionally, versions with additional certifications such as ATEX are available if use in potentially explosive atmospheres is required.
Durability and Maintainability
A key selection criterion is service life. Parker Legris shut-off valves are designed for thousands of switching cycles. The combination of precise manufacturing, high-quality seals, and robust housing material significantly reduces maintenance effort. This helps to minimize downtime and keep operating costs low. For maintenance personnel, it is also crucial that the valves are quick to assemble and disassemble to allow for repairs without extensive interventions.
Integration into Existing Systems
When planning new systems or modernizing existing ones, compatibility is crucial. Parker Legris shut-off valves can be easily integrated into existing compressed air and fluid networks. Thanks to clear product labeling and standardized interfaces, connection to ERP systems or integration into digital spare parts catalogs is also easy to implement. This allows purchasers and maintenance personnel to standardize and secure delivery processes in the long term.
Safety Aspects
Especially with shut-off valves, safety plays a key role. The products are designed so that open and closed positions are clearly recognizable. Reliable sealing minimizes leakage risks, even with frequent switching. Additional certificates – depending on requirements – ensure use in safety-critical areas. For the operator, this means a clear reduction of risk in daily operation.
Visual Support for Selection
To illustrate the functionality and differences between ball valves and needle valves, detailed images of the valve bodies, macro shots of the needle tip, and sectional drawings showing the flow path in open and closed states are suitable. A practical photo – for example, installed in a pneumatic distribution station – also makes selection easier for users and provides a clear picture of the application possibilities.
FAQ – Frequently Asked Questions
What materials are available?
Stainless steel for aggressive media and high corrosion requirements, brass for standard applications with air and water.
What valve types are available?
Ball valves for quick switching, needle valves for precise regulation.
Up to what pressure are the valves designed?
Standard versions up to 10 bar, stainless steel variants up to 16 bar.
What temperatures are possible?
–20 °C to +120 °C in the standard version, special versions available for higher ranges.
What connections are there?
G1/8 to G1 as well as NPT variants for international systems.
What sealing materials are used?
NBR or PTFE, depending on the medium and application.
Are there certifications?
Yes, CE-compliant according to the Pressure Equipment Directive, ATEX certified upon request.
What is the service life?
Several thousand switching cycles under typical load, depending on the medium and operating environment.
How fast is delivery?
All standard variants are available at short notice and can be ordered directly via the online shop.