Available ConfigurationsStand-Alone Regulator, Non-relief, Token relief, Internal or External pressure registration, Integral True-Monitor, VSX4 Slam-Shut Module Hydrogen (H2)The CS400 family was validated for hydrogen service through extensive high pressure hydrogen testing to analyze sealing performance and material compatibility. For additional details regarding the evaluation and testing, please refer to “Blending Hydrogen with Natural Gas : Technical Factors to Consider”. Body Sizes and End Connection StylesGray CI: 1-1/4, 1-1/4x1-1/2, 1-1/2, 2 NPT, NPS2/DN50, CL125 FF DI: 1-1/4, 1-1/2, 2NPT, Rp 1-1/4, 1-1/2, 2, NPS2/DN50, CL125 FF, CL150 FF, or PN10/16 ST: 1-1/4, 1-1/2 NPT, Rp 1-1/4, 1-1/2 Maximum Operating Inlet Pressure125 psig / 8,6 bar Outlet Pressure Range3.5-inches w.c. to 5.5 psig / 9 to 380 mbar in nine ranges Maximum Emergency Outlet Pressure (Casing)25 psig / 1,7 bar Maximum Outlet Pressure to Avoid Internal Parts Damage5 psi / 0,34 bar over set point Maximum Operating Outlet Pressure5.5 psig / 380 mbar Pressure RegistrationInternal or External Token ReliefCg = 67 Temperature Capabilities-20° to 150°F / -29° to 66°C Approximate WeightsThreaded Body: Type CS400: 9 Pounds / 4 kg Type CS403: 18.5 Pounds / 8 kg Type CS404: 11.2 Pounds / 5 kg Flanged Body: Add 8.6 Pounds / 4 kg to weights listed Type TM600 True-Monitor™ SpecificationsControl Press: 11wc-7.5psi/27-517mbar Max Op Outlet Press TM600 on CS403:7.5psi/517mbar Vent:1/4 NPT Ext Sense: 1/4 NPT Case Material: AL Press Reg: Same as Regulator Type VSX4 Slam-Shut Module SpecificationsOPSO:10wc-19psi/25-1300mbar OPSO/UPSO: OPSO:0.73wc-8.7psi/50-600mbar UPSO:4wc-7.3psi/10-500mbar Vent:1/4 NPT Ext Sense:1/4 NPT Case Material:AL Press Reg:Int or Ext