Series Regulators

Fisher™ CS800 Series Regulators

Fisher CS800 Series direct-operated, spring-loaded regulators provide pressure-reducing applications for commercial and light industrial installations. This flexibility is provided by the numerous body sizes and end connections, outlet pressure settings, orifice sizes, as well as the option for internal or external pressure registration. In addition to application flexibility, the CS800 Series offers multiple overpressure protection options to meet your demands on application requirements.

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 Styles1-1/4, 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 PressureEmergency: 175 psig / 12.1 barMaximum Outlet Control PressureEmergency (Casing): 15 psig / 1.0 bar
To Avoid Internal Parts Damage: 3 psig / 0.21 bar differential above outlet pressure setting
Orifice Sizes1/4-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 Range3.5-inches w.c. to 10 psig / 9 to 0.69 barPressure RegistrationInternal or ExternalExternal Registration Connection3/4 NPTTemperature Capabilities-20 to 150°F / -30 to 66°CCapacityUp to 36 270 SCFH / 974 Nm3/hApproximate WeightsThreaded:
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