supply of water locking unit (water check valve , water locking unit (water check valve assembly with pneumatic operated) as per mcf s spec. no. mmdts-19027, rev. 3 ( with addendum - 1 & 2 ). details technical specifications :- (1) sha pe of assembly -y type (normally open), aisi - 304 (ss) (2) inlet port (water) - 1/2 ( female thread e nds ) (3) outlet port (water) - 1/2 ( female thread ends ) (4) inlet port ( pneumatic )- 1/4 (5) exhaust port ( pneumatic ) - 1/4 (6) operating temperature range of actuator - ( -10 degree to +180 degree c entigrade ) (7) actuator size - 40 to 125 mm (8) operating pneumatic pressure range - 4 bar to 10 bar. (9) operating pneumatic pressure maximum - 10 bar maximum. make/brand - festo / smc / janatics / norgren or similar [ warranty period: 30 months after the date of delivery ] ]