A check valve is considered one of the most critical components for the protection of mechanical equipment and in many systems is often used to avoid returned flow. Damage to pipeline systems can be traced to errors in check valve specification. Incorrect check valve selection can cause serious damage due to pressure surges on pumps, pipes, foundations and other equipment which might be exposed to such pressure fluctuations.
Tyco Valves & Controls’ new Clasar check valve, launched through its SAPAG brand, is engineered to reduce the risk of damage to such components, claims press release from the company. Installed downstream of a pump to prevent reverse flow and protect vital pump equipment, the new valve is targeted at both low and high risk, multiple pumping line applications. It is based on an axial non-rubbing disc closing, which the Tyco release explained, minimises maintenance costs and increases reliability, and ultimately, lowers the cost of ownership for plant operators through reduced installation and maintenance costs.
Clasar valve 300
The new check valve, the release said, increases efficiency by minimising the returned velocity and eliminating possible damage caused by pressure surges. It offers short closing times using a low mass, spring controlled polyurethane axial disc with a short closing stroke. Due to this quick closing action, the valve closes at approximately the same deceleration as the returned velocity. Its high dynamic valve characteristic makes the Clasar check valve suitable for high risk deceleration systems, such as high static head applications or even high-head multi pump units, claimed the press release, adding that the new valve can be deployed in a wide range of water applications, including seawater and industrial water processes. Further, the valves are also approved for potable drinking applications to both WRAS and ACS standard and are offered in a wide range of sizes up to DN 1800.
The spring loaded design enables the valve to operate in horizontal, vertical-upstream or diagonal installations. The check valves’ large flow capacity and heavy duty design, suitable up to 50 bar, enables improved reliability and reduced energy costs over existing check valves.
Clasar valve diameter selection
René van der Gaag, product manager for special service valves, Tyco Flow Control said: “Using clever design and technology, the launch of Clasar represents our latest innovation in check valves and offers a range of clear advantages and benefits to the utilities and process industries. Many of the issues which can affect check valves generally have been designed and engineered out of our Clasar product with the aim of delivering improved operational capability, extended lifecycle and reduced costs for our customers.”
