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Stop check valves

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The valves are designed to open at very low differential pressures, allow favourable flow conditions and are easy to disassemble for inspection and service.

The valve cone has a built-in flexibility to ensure a precise and tight closing towards the valve seat.

A well balanced dampening effect between the piston and the cylinder gives an optimal protection during low loads and against pulsations.

Product Features

Fast and easy valve overhaul service. It is easy to replace the top part and no welding is needed.

Designed to open at a very low differential pressure of 0.04 bar (0.58 psig).

Designed with a built-in damping chamber preventing valve flutter in case of low refrigerant velocity and/or low density.

Each valve is clearly marked with type, size and performance range.

Easy to disassemble for inspection and service.

Internal backseating enables replacement of the spindle seal whilst the valve is active, i.e. under pressure.

Optimal flow characteristics ensuring quick opening to the fully open position.

Protection against pulsation by built-in damping facility.

Housing and bonnet material is low temperature steel according to requirements of the Pressure Equipment Directive and other international classification authorities.

Equipped with Stainless steel bolts.

Max. working pressure: 52 bar g (754 psi g)

Temperature range: -60°C/+150° (-76°F/+302°F)

Classification: To get an updated list of certification on the products please contact your local Danfoss Sales Company.

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Product Application

Applicable to HCFC, HFC, R717(Ammonia) and R744 (CO2). Can be used in chemical and petro-chemical applications.

Modular Concept: – Each valve housing is available with several different connection types and sizes. – Possible to convert SCA-X or CHV-X to any other product in the FlexlineTM SVL family (regulating valve, stop valve or strainer) just by replacing the complete top part.

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