Dutco Tennant LLC offers a wide range of non-return check valves for various uses in water transmission lines applications. These one-way check valves are used for backflow prevention of water in transmission lines. Our offered check valves have an established track record of high performance, cost savings and results that are difficult to find anywhere else.
The axial check valve is the preferred solution for critical non-return applications such as the protection of rotating equipment and systems in which low-pressure loss, stable operation and dynamic behavior are essential. These valves come with a range of features which helps the users in various ways. The streamlined flow path through a full-port expanded body avoids turbulence and prevents erosion and vibration. This eliminates process downtime and maintenance costs. The presence of full opening flow passage and high-pressure recovery of the venture-shaped body result in very low-pressure loss and hence reduced operating cost of pumps and compressors. Metal-to-metal sealing between the disc and the seat gives it a tight shut-off. This sealing is not affected by erosion a deformation of the material. The presence of a large disc that has identical effective pressure areas on both sides gives it a low cracking pressure which benefits the stability of a compressor system during startup. The low static pressure in the venture shaped throat area creates a pressure differential over the disc, resulting in the easy opening. The spring-assisted design ensures ultra-fast closing with virtually no backflow and pressure surges in a critical application such as multi-pump systems or LNG trains. Our axial check valves are designed in such a way that they do not require any maintenance.
Non-slam check valves are designed to react to the high deceleration rates by closing very quickly, prior to the reverse velocity reaching damaging levels.
An axial check valve is a preferred solution for critical non-slam valves applications such as the protection of rotating equipment and systems where low-pressure loss, stable operation and dynamic behavior are essential.
The streamlined flow path through a full-port expanded body avoids turbulence and prevents erosion and vibration. Process downtime and maintenance costs are eliminated.
The tight shut-off is obtained by means of metal-to-metal sealing between the disk and the seat. This sealing is not affected by erosion and deformation of material (like with a soft seal).
The spring-assisted design ensures ultra-fast closing with virtually no backflow and pressure surges in critical applications such as multi-pump systems or LNG trains.