INTRODUCTION
NON RETURN VALVES TYPE MNV
Check valve type MNV can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plant with ammonia. MNV can also be used in refrigerating systems with fluorinated refrigerants. When the MNV is used in liquid lines where cold, thick oil or impurities may be present, it is recommended that the standard spring be replaced by a special spring. Available from 15NB to 125NB size. See ordering table.
NOTE:- MNV Non Return Valve series are upgraded design version of old SNVRA/ SNRV series. The dimensions and fitting connections for both valves are same. The MNV can be used as drop in replacement for SNVRA/ SNRV series valves. The pressure rating of MNV is 55 bar where as SNVRA/ SNRV was 28 bar.
FEATURES
- Ensures correct direction of flow.
- Valve housing made of steel.
- Available for 55 bar g (798 psi g) working pressure.
- Prevents back-condensation from warm evaporator to cold evaporator.
- Large range of flanges with connection dimensions in accordance with standards: DIN, ANSI, SOC.SA and FPT.
- Fitted with damping piston that makes the valves suitable for installation in lines where pulsation can occur, e.g. in the discharge line from the compressor. Designed to meet the strict quality demands and safety requirements for refrigeration installations, specified by the international classification societies.
