CS800 Series

Fisher Regulator
Commercial Low-Pressure Regulators

Features

• Flow Optimized Disks provide the Maximum Flow for your Application
• Largest number of Overpressure Protection Offerings in the Industry
• Wide Variety of Body Sizes and End Connections
• Body Materials Available in Gray Cast Iron, Ductile Iron and Steel
• Fixed Factor/Pressure Factor Measurement (PFM) Accuracy Capabilities
• Only Standard Tools required for Pressure Adjustment and Orifice Removal
• Simplified Maintenance

Specifications

• Body Sizes and End Connection Styles：
  1-1/4, 1-1/2, and 2 NPT
  Rp 2
  NPS 2 / DN 50 / CL125FF / CL150 FF / CL150 RF
  NPS 2 / DN 50 / PN 10/16 / PN16
• Maximum Allowable Inlet Pressure： Emergency: 175 psig / 12.1 bar
• Maximum Outlet Control Pressure：
  Emergency (Casing): 15 psig / 1.0 bar
  To Avoid Internal Parts Damage: 3 psig / 0.21 bar differential above outlet pressure setting
• Orifice Sizes：
  1/4-inch / 6.4 mm
  3/8-inch / 9.5 mm
  1/2-inch / 13 mm
  5/8-inch / 16 mm
  3/4-inch / 19 mm
  7/8-inch / 22 mm
  1-inch / 25 mm
  1-3/8-inches / 35 mm
• Outlet Pressure Range： 5-inches w.c. to 10 psig / 9 to 0.69 bar
• Pressure Registration: Internal or External
• External Registration Connection: 3/4 NPT
• Temperature Capabilities: -20 to 150°F / -30 to 66°C
• Capacity: Up to 36 270 SCFH / 974 Nm3/h
• Approximate Weights:
  Threaded:
  CS800/820:25#/11kg
  CS803/823:34#/16kg
  CS805/825:26#/12kg
  CS806/826:26#/12kg
  HP:
  CS85x, add 2#/0.91kg to Types above
  Flanged:
  Add 11#/5kg to weights above