Tender For supply of thermostaticexpansionvalve tube type of refrigerant r-22/ r-407, orifice capacities- 4-5 tr, 16kgmwp, working pressure (max) -500 psig, angle way 3/8 inch x 1/2 inch, similar to part no. 068u2075 of m/s danfoss or equivalent to this of m/s alco, m/s sporlon make, or any other make with prior approval of rdso, conforming to rdso specification no. rdso/pe/spec/ac/0061-2005 (rev-1), suitable for use in lhb variant rmpu ac coaches .