The nozzle check valve is one of the faster closing check valves that reduce slam and water hammer due to its short linear stroke.The nozzle check valve design also reduces head loss during operation. Hence is one of the most economical valves.
Non-Slam Nozzle Check Valve Product OverviewThe nozzle check valve is a fast-closing check valve designed to minimize valve slam and water hammer thanks to its short linear stroke. Its streamlined design also helps reduce head loss during operation, improving system efficiency. As a result, it is considered one of the most cost-effective check valves for reliable flow applications.
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Product Range |
DN65 – DN1000 |
Pressure Rating |
PN10, PN16, PN25 |
Temperature Range |
-20°C TO +70°C |
Face to Face Dimensions |
ISO5752, EN558-1, Series 14 |
Flange Dimensions |
EN1092-2 (DIN2501) |
Hydrostatic Testing |
EN12266, ISO5208 |
Type Testing |
EN1074-3 |
Certificates |
Manufactured under a certified ISO 9001 quality system |
Applications |
Potable and raw water, Firefighting and Irrigation systems |
Ultra-fast closing time for maximum system protection
The nozzle check valve features an extremely fast closing time, with a dynamic response measured in a fraction of a second. This rapid action helps prevent reverse flow before it can build momentum, making the valve highly effective in protecting pumps, pipelines, and critical equipment.
Minimizes pressure surges and reduces water hammer
Thanks to its short linear stroke and quick disc response, the nozzle check valve helps avoid pressure surges in the pipeline or significantly reduce them. This makes it an excellent solution for systems where water hammer protection is essential for long-term reliability and operational safety.
Suitable for high-pressure applications
Engineered for demanding operating conditions, the nozzle check valve is ideal for high-pressure applications across industrial, municipal, water treatment, power, and process systems. Its robust construction ensures dependable performance even in challenging environments.
Non-slam silent check valve design
The valve operates as a non-slam silent check valve, closing smoothly and quickly without the loud impact associated with conventional check valves. This silent operation helps improve system stability, reduce mechanical stress, and extend service life.
ISO 5752 Series 14 face-to-face dimensions for easy installation
Designed according to ISO 5752 Series 14, the valve offers standardized face-to-face dimensions that simplify installation, replacement, and system integration. This makes it easier to fit into existing pipeline layouts with minimal modification.
Maintenance-free operation
The nozzle check valve is designed for long-lasting, maintenance-free performance. With fewer moving parts and an efficient internal design, it reduces service requirements, lowers maintenance costs, and minimizes downtime in continuous-duty systems.
Flexible installation in vertical, horizontal, and diagonal positions
This valve can be installed in vertical, horizontal, or diagonal pipelines, offering greater flexibility for engineers, contractors, and plant operators. Its versatile mounting capability makes it suitable for a wide range of piping configurations.
Low pressure drop for improved efficiency
The streamlined internal geometry of the nozzle check valve helps reduce flow resistance and maintain a low pressure drop during operation. This contributes to improved hydraulic efficiency, lower energy consumption, and better overall system performance.
Tight shutoff with precision disc sealing
The valve features precise disc sealing that provides reliable tight shutoff and helps prevent leakage. This ensures dependable sealing performance, enhances system integrity, and supports efficient backflow prevention.
The nozzle check valve is designed to deliver fast, reliable, and efficient backflow prevention in demanding pipeline systems. With an ultra-fast closing time measured in a fraction of a second, it responds immediately to flow reversal, helping reduce valve slam, pressure surges, and water hammer. Its non-slam silent check valve design ensures smooth and quiet operation, making it ideal for applications that require system protection and long-term reliability.
Built for high-pressure applications, the nozzle check valve performs effectively in industrial, municipal, and water infrastructure systems. Its streamlined design minimizes pressure loss, supports low pressure drop, and improves flow efficiency. Manufactured with ISO 5752 Series 14 face-to-face dimensions, it enables easy installation and replacement in a wide range of piping systems. The valve also offers maintenance-free operation, flexible mounting in vertical, horizontal, and diagonal positions, and precision disc sealing for tight shutoff and dependable leakage prevention.