... body:nickel plated brass.b. Shutter:PPOc. Spring:Stainless steeld. O-ring:EPDMe. Connection:BSP,DN32,Male thread3. Features:a. ... pressure fluctuates, outlet temperature variation is within +/-2 Celsius degree.d.The external check valves at inlets prevent cross-flow of ... fluctuates, outlet temperature variation is within +/-2 Celsius degree.d.The external check valves at inlets prevent cross-flow of ...