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 Connexion Fully Open Silent Check ValveConnexion Cast Iron and 316 Stainless Steel silent check valves are used on vertical pipelines or fluid pipe with pressure. The valve, with restoring back pressure will be close at suitable speed when pump is shut down to separate the inertia fluid (positive pressure) from the back flow (negative pressure) caused by pump shutdown hence preventing the noise and damage caused by the impact of positive and negative pressure. The silent check valve plays an important role on piping, especially applied on the outlet of the pump. The Connexion silent check valve applied on the outlet of the pump should be selected and will resist the highest pressure, the largest water hammer effect and the biggest fluid impact. If a check valve is not good enough or when a check valve is damaged, it will allow fluid back flow, pressure loss or more seriously damaged parts falling back in to the pump blades. Features: The design of the valve is full flow lift type and valve won't be impacted by the water flow. Hence, the valve can work for a long periods of time and with huge flow rates. The hang type design of the plug is automatically locating and can adjust the close position of the plug regardless of pressure. The sealing design is by up-side-down of " V Ring" and is designed for high and or low pressures with excellent sealing characteristics. The design of plug is semi-round and can be able to resist higher pressure with long life expactancy. 
Valve material: Cast iron, Stainless steel Test pressure for valve body : Cast Iron : 21Bar 316 Stainless Steel : 35Bar Applied temperature: -15C to + 80C Specification : JIS 10K, PN16, ANSI150Lb others upon request. The bypass valve set won't be attached if the diameter is lager than 8 inches. Special order is needed for special fluid, material or particular dimension. The Connexion silent check valve is suitable to both horizonal and vertical type. The Benefits of Full Open Style Silent Check Valve on Flow Rate The full open style silent check valve adapts the hidden by-pass design in the oopen position which greatly increases flow and the smallest resistance on valve inside surface. This in turn will reduce the loss of pump running effect and improve the power efficiency and energy efficincy of the pump. The defects of the traditional silent check valve, e.g. arduous flow path, large resistance, uneven flow path and fluid impact directly against the valve body causing cavitation and will shorten traditional valve life expectancy. The Connexion Full Open Silent Check valve runs far more effectively, quietly and longer.
The Improvement of Full Open Style Silent Check Valve on Pressure-Resistance
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