Pioneer 3 valve manifolds pipe to pipe (R), pipe to flange (T) and flange to flange (H) designed for connecting system impulse lines & transmitters. These manifolds consist of 1/2" NPT(F), pipe to flange or flange to flange connections on 54mm (2 1/8") centers, and of one equalizer valve, two block valves and 2 nos 1/4" NPT(F) purge (VENT) connections. These manifolds are rugged in construction to withstand high pressures and temperatures. The manifolds are rated for pressures as high as 6000 PSI at 200oF or 4000 PSI at 500oF. with PTFE Packing. For a Higher Temperatures Grafoil Packing is used.