FISHER 1301
Technical Parameters
Category Parameter Specification / Description
General Model Series 1301
Type Direct-Operated Pressure Reducing Regulator
Pressure Ratings Maximum Inlet Pressure (P1) 5 psig (0.34 bar) for most models.
Outlet Pressure Range (P2) Adjustable: Typically low pressures, from 3" w.c. to 14" w.c. (0.75 kPa to 3.5 kPa) or slightly higher, depending on the specific spring.
Pressure Rating 125 psig (8.6 bar) Body Rating.
Flow & Capacity Flow Capacity (Cv) Very Low, typically around 0.02 to 0.04, designed for small flows.
End Connections 1/4" NPT or 1/2" NPT (Internal Pipe Thread) - Specified by the model suffix.
Materials & Environment Body Material Aluminum
Internal Parts Stainless Steel, Brass
Diaphragm Material Elastomer (e.g., Neoprene)
Seat Material Elastomer (e.g., Buna-N) for tight shut-off.
Ambient Temperature Standard: -20°F to 150°F (-29°C to 66°C)