Application Instrumentation, Pressure and Differential Pressure Specifications Maximum operating pressure up to 6,000 psi @ 100 F (38 C) Operating temperature range 65 F (- 54 C) up to 1,200 F (648 C) 2-way, 3-way and 5-way Instrument manifolds valves Orifice 3.2 mm (Small-Bonnet Valve) and Orifice 6.4 mm (Large-Bonnet valve) Port Connector OD. 1/4 inch to 3/4 inch Thread Connector Type NPT thread Each valve on every manifold is factory tested with nitrogen gas. The test is performed to a maximum allowable leak rate of 0.1 scc/min