supply of water locking unit and dc convertor , supply of water locking unit (angle seat valve assembly with pneumatic operated) size 3/4 in ch for pressurized flushing system of lhb coaches as per mcf specification mmdts 19027, rev-03 , functi onally compatible in eppfs of ir coaches to spac item code: spac.0011042 or equivalent [ warranty peri od: 30 months after the date of delivery ] ] , 110 to 24v dc converter for solenoid valve and timer circuit for maintenance of electropneu matic pressurised flushing system model no. sarjs/9162330/110-24 or akt-202212110-24 or aps/00146 or equivalent to image enclosed and also suitable for epfs system for following makes: spac, imi norgr en, oasis,vp engineers,chemcon,amit engineers,cmt. [ warranty period: 30 months after the date of delivery ] ]