Dresser Control Valve Masoneilan Model#: 87-21814 Size Body: 2" CV14 Action: Air To: Close Range: 3-15 PSI / Supply: 25 PSI Body: A216 - Stem: A479 Material Plug Disc/Seat: 316 Rating: ASSI: 150 B16.34 Masoneilan SVI AP Digital Positioner Model#: SVI2- 21123111 Operating Temp -40°C to +85°C, 30 Volts, 4-20 mA, 150 PSI Type 4X-IP66