67C Series Specifications The Specifications section gives some general specifications for the 67C Series regulator. A label on the spring case gives the control spring range for a given regulator as it comes from the factory. Available Constructions See Table 2 Body Size, Inlet and Outlet Connection Style 1/4 NPT Construction Materials See Table 3 Maximum Inlet Pressure (Body Rating)(1) All Except Types 67CS and 67CSR: 250 psig / 17.2 bar Types 67CS and 67CSR: 400 psig / 27.6 bar Outlet Pressure Ranges See Table 1 Maximum Emergency Outlet Pressure(1) 50 psi / 3.4 bar over outlet pressure setting Flow Capacities See Table 4 Wide-Open Flow Coefficients Main Valve: Cg: 11.7; Cv: 0.36; C1: 32.2 Internal Relief Valve: Cg: 1.45; Cv: 0.045; C1: 32.8 IEC Sizing Coefficients Main Valve: XT: 0.66; FL: 0.89; FD: 0.50 Accuracy Inlet Sensitivity for Nitrile (NBR) and Silicone (VMQ) Elastomers: Less than 0.2 psig / 14 mbar change in outlet pressure for every 25 psig / 1.7 bar change in inlet pressure Inlet Sensitivity for Fluorocarbon (FKM) Elastomers: Less than 0.4 psig / 28 mbar change in outlet pressure for every 25 psig / 1.7 bar change in inlet pressure Repeatability for Nitrile (NBR) and Silicone (VMQ) Elastomers: 0.1 psig / 7 mbar(2) Repeatability for Fluorocarbon (FKM) Elastomers: 0.3 psig / 21 mbar(2) Air Consumption: Testing repeatedly shows no discernible leakage Types 67CR, 67CSR, 67CFR and 67CFSR Internal Relief Performance Low capacity for minor seat leakage only, other overpressure protection must be provided if inlet pressure can exceed the maximum pressure rating of downstream equipment or exceeds maximum outlet pressure rating of the regulator. Approximate Weights Types 67C, 67CR, 67CF and 67CFR: 1 lb / 0.5 kg Types 67CS and 67CSR: 2.5 lbs / 1.1 kg Types 67CFS and 67CFSR: 4 lbs / 1.8 kg Smart Bleed™ Check Valve Setpoint 6 psi / 0.41 bar differential Pressure Registration Internal Drain Valve and Spring Case Vent Location Aligned with inlet standard, other positions optional Temperature Capabilities(1) With Nitrile (NBR) Standard Bolting: -20 to 180°F / -29 to 82°C Stainless Steel Bolting: -40 to 180°F / -40 to 82°C With Fluorocarbon (FKM)(6): Polyethylene Filter(5) (standard): 0 to 180°F / -18 to 82°C Polyvinylidene (PVDF), Stainless steel or Glass Filter (Optional): 0 to 300°F / -18 to 149°C With Silicone (VMQ)(3) Diaphragm and Low Temperature bolting: -60 to 180°F / -51 to 82°C With Gauges: -40 to 180°F / -40 to 82°C Types 67CF, 67CFR, 67CFS and 67CFSR Filter Capabilities Free Area: 12 times pipe area Micron Rating: Polyethylene Filter(5) (Standard): 5 microns Glass Fiber Filter (Optional): 5 microns PVDF Filter (Optional): 40 microns Stainless Steel Filter (Optional): 40 microns Options All Types • Handwheel adjusting screw • Inlet screen • NACE MR0175(4) or NACE MR0103 construction • Panel mount (includes spring case with 1/4 NPT vent, handwheel and panel mounting nut) • Closing cap (available on spring case with 1/4 NPT vent) • Fluorocarbon (FKM) elastomers for high temperatures and/or corrosive chemicals • Silicone (VMQ) elastomers for cold temperatures • Fixed Bleed Restriction • Triple scale outlet pressure gauge (Brass or Stainless steel) • Stainless steel stem on the valve plug • Tire valve or pipe plug in second outlet Types 67CFR and 67CFSR only • Smart Bleed internal check valve(7) • Large dripwell with manual or automatic drain Types 67CF and 67CFR only • Stainless steel drain valve
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