supply of four item as per enclosed specification in tender document. (1) angle seat valve-3/4four item as per enclosed specification in tender document. (1) angle seat valve-3/4,angle seat valve-3/4 [ warranty period: 30 months after the date of delivery ] ] , 5/2 push pull spring return valve - 1/4 (with mounting brackets, knob,connecto rs, and fasterners) designed for pressurised flushing system, equivalent or functionally co mpatible with item code: spac.0011437(equivalent means it should be in same shape and size,ma terial, and able to fit in existing imi make pressurized flush system of lhb coaches) [ warran ty period: 30 months after the date of delivery ] ] , isolating cock (1/4 bsp with both end female thread) in pneumatic line designed for press urized flushing system as per mdts 19027. rev.01. or latest to item code compatible with spac.spac.000 0641 or equivalent,functionally compatible in pfs & epfs system fitted in indian railway coaches. [ warr anty period: 84 months after the date of delivery ] ] , smps, input range-110v ac/dc with 30% voltage tolerance, output-24vdc, design ed for pressurised flushing system compatible with spac.0018360 [ warranty period: 30 months after the date of delivery ] ]