Product Description:
IMI Norgren Non-Return Valves
IMI Norgren non-return valves are high-quality inline one-way pneumatic components specifically engineered to allow unrestricted compressed air flow in a single direction while effectively blocking any reverse back-flow within pneumatic systems. These valves ensure reliable performance and protection across various industrial applications.
The product range includes four primary families: the heavy-duty brass S/520-S/532 threaded non-return valves; the T50P push-in tube-to-tube non-return valves; the lightweight, compact T55 inline non-return valves; and the T60 Air Fuse, an inline excess-flow automatic shut-off safety valve.
The S/520-S/532 series stands out with its durable brass construction, designed to withstand high-pressure industrial environments up to 16 bar. These valves come with options for G or NPT threading and are also available in a high-temperature version that features FPM seals capable of operating at temperatures up to +150°C.
The T50P push-in non-return valves feature a quick-connect design compatible with outer diameter tubes ranging from 4 to 12 mm. They support vacuum conditions down to -0.9 bar and have an ultra-low cracking pressure between 0.03 and 0.05 bar. This design allows for rapid and straightforward field assembly without the need for thread sealing.
The T55 inline non-return valve is a silicone-free, lightweight aluminium check valve with a low cracking pressure of 0.05 bar. Its compact size makes it ideal for installations with limited space. It is capable of operating at pressures up to 10 bar and is available with port sizes ranging from G1/8 to G1/2.
The T60 Air Fuse is a specialized one-directional excess-flow shut-off safety valve. It automatically cuts off air flow in the event of a hose rupture or significant leakage and resets itself once the fault is cleared. This valve is intended for flexible hose safety protection and complies with industrial pneumatic safety standards.
All Norgren non-return valves are designed for use with filtered compressed air, whether lubricated or non-lubricated. Each valve undergoes stringent testing in accordance with the ISO-6358 standard and is widely utilized in factory automation pneumatic circuits.
Features:
Our product lineup includes multiple series options tailored to various industrial needs. These include the heavy-duty threaded S series (S/520-S532), the push-in T50P series, the compact T55 series, and the safety air-fuse T60 series.
Designed to operate across a wide pressure range, these components function effectively from a vacuum level of -0.9 bar up to a maximum of 16 bar, ensuring versatility in different applications.
Engineered for efficiency, the valves feature a low cracking pressure starting at a minimum of 0.03 bar. This allows them to open with minimal flow resistance, optimizing performance.
The products support diverse connection types, including G and NPT threads, as well as push-in tube connections with outer diameters ranging from 4 to 12 mm, providing flexible installation options.
Material choices are available to suit various environmental and operational demands. Options include brass or aluminium bodies combined with NBR seals, with the possibility of selecting FPM high-temperature seals for enhanced durability.
Operating temperature ranges from -20℃ to +80℃ under standard conditions. Additionally, the S-series offers an optional high-temperature variant capable of withstanding up to +150℃.
The T60 Air-Fuse model incorporates hose-burst protection with automatic reset functionality. Its tamper-proof safety design adds an extra layer of reliability and security in operation.
Installation is straightforward with a simple inline, line-mount design. The compact structure ensures space efficiency, while the high reliability contributes to a long service life.
These products are compatible with filtered compressed air and inert gases (specifically for the T60). They work well with both lubricated and non-lubricated air, adding to their versatility.
Technical Parameters:
| Temperature Range |
‑20~+80℃ |
| S/520‑S532 Thread Type |
G / NPT Thread G1/8‑G1 |
| T55 Thread Type |
G/NPT Thread G1/8‑G1/2 |
| T50P Connection |
Push‑in Tube OD4‑12 mm |
| T60 Air Fuse Thread Type |
G/NPT Thread G1/4‑G1½ |
| Body Material |
Brass / Aluminium / Aluminium + Brass Internal |
Applications:
Industrial automation in factories heavily relies on pneumatic control circuits to ensure efficient and reliable operation. These systems are integral in various applications, including machine tools, packaging machinery, and textile equipment, providing precise control through compressed air.
Pneumatic actuators play a crucial role in robotics, particularly in controlling movement within pneumatic actuator loops. To maintain optimal performance and avoid damage, features such as cylinder back‑flow prevention are implemented.
The protection of essential components like compressors, air dryers, and air preparation units is vital for maintaining system integrity. Safety measures also include flexible air‑hose rupture protection, with devices like the T60 Air Fuse being mandatory to prevent accidents and ensure continuous operation.
Pneumatic systems are widely used in conveying equipment and material handling applications, as well as in automotive assembly lines and printing machinery. These applications benefit from the robustness and precision offered by pneumatic technology.
Additionally, vacuum pneumatic circuits, such as those in the T50P series, provide specialized solutions for applications requiring vacuum generation and control within pneumatic systems.
Support and Services:
Norgren provides comprehensive technical support and services for their Solenoid Valve products to ensure optimal performance and customer satisfaction. Our expert team is available to assist with product selection, installation guidance, troubleshooting, and maintenance advice. We offer detailed product documentation, including datasheets, wiring diagrams, and installation manuals, to support your application needs. Additionally, Norgren’s service network delivers repair, calibration, and replacement services to maximize the lifespan and reliability of your solenoid valves. For customized solutions and technical consultancy, our specialists work closely with you to tailor products that meet your specific operational requirements.
Packing and Shipping:
The Norgren Solenoid Valve is carefully packaged to ensure maximum protection during transit. Each valve is individually sealed in anti-static, moisture-resistant packaging to prevent damage from environmental factors. The product is then placed in a sturdy, corrugated cardboard box with appropriate cushioning materials to absorb shocks and vibrations.
For shipping, the packaged solenoid valves are labeled clearly with handling instructions and product information. Depending on the order size and destination, shipments are dispatched via reliable courier services that provide tracking and timely delivery. Special care is taken for international shipments to comply with customs regulations and to ensure the valves arrive safely and promptly to the customer.
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