bids are invited for steam import/export pressure control valve for mp nitric acid plant tag no.pcv-196 with ibr certified weld neck companion flange ( ibr form iiic) alongwith fastners like nut/bolts and ss-316 spiral wound with graphite filler gasket set as per below technical specifications , actuator repair kit for tag no. pcv 196 which consists of diaphrgm,o ring, bushing assembly for stem sealing, spring assembly etc, control valve spare kit consists of gaskets (body/bonnet and seat), gland packing rings set and other soft parts if any for tag no.pcv1 96 , electro-pneumatic linear type actuator valve positioner 1) model no. yt1000 lsn132s0 or eqivalent. 2) make- rotork ytc ltd / tisin ltd or eqivalent. 3) input signal- 4- 20 madc. 4) supply pressure - 1.4 to 7 bar. 5) air connection - 1/4 inch npt (f) 6) zero and span adjustment - required. 7) inpgress protection - ip66 or better. 8) stroke - 10 to 40 mm. 9) housing material - die cast aluminium with epoxy polyseter coating. 10) linearity - ±2% f.s. 11) conduit connection- 1/2 inch npt (f). 12) gauges: required & its casing should be in stainles steel. 13) for installation make of valve - m/s severan glocon, m/s ksb mil,m/s , pneumatic control valve positioner as per below technical specifications 1) action: direct/reverse with 3 nos. of gauges for supply, impulse and output. 2) supply pressure: 1.5 -10 kg/cm2. 3) motion type / valve travel: linear / 14 mm to 100 mm. 4) impulse input: 0.2 kg/cm2 to 1.0 kg/cm2. 5) linearity / hysteresis ( accuracy ): ± 1% of full stroke. 6) housing material / enclosure class : die cast aluminium / weatherproof. 7) mounting: universal for different make valves. 8) type- pneumatic. 9) pneumatic connection- 1/4 inch npt ftotal quantity : 15