Specifications

1116FH
FIRE HYDRANT RELIEF VALVE
VALVE DESCRIPTION
Provides temporary relief protection to a water system
by attaching directly to a fire hydrant via 2-1/2" FNST
swivel on the inlet of the Watts 1116FH Relief Valve.
VALVE APPLICATION
In municipal & rural water systems, elevated storage
tanks provide outlets for system pressure surges.
When these elevated tanks are out of service for
inspection / repairs an overpressurization of the water
transmission lines could occur. One or more 1116FH
relief valves can easily be installed on fire hydrants
through out the system for surge protection.
VALVE FEATURES
The 1116FH Relief Valve is light-weight, compact with
high capacity. Utilizing the FNST Swivel on the valve
inlet the 1116FH can be rotated 360 degrees and
locked in any position. This allows surges to discharge
safely to an area for watering or storm drain runoff.
COMPONENTS
1
- Main Valve (Angle Pattern - 2" Threaded Ends Only)
2 - BP30 Relief Control - 20-175 PSI Range
3 - Fixed Orifice
4
- Pressure Gauge
5 - 2-1/2" FNST Swivel
6 - Flow Clean Strainer
Technical Data
*
Body/Cover - Cast/Ductile Iron : ASTM A126 Class B
*
Seat - Brass : ASTM B584, Alloy C84400
*
Stem - Stainless Steel : AISI 303
*
Diaphragm - Nylon reinforced Buna-N
*
Seat Seal - Buna-N “Quad Seal”
*
Pilot - Brass : ASTM B584, Alloy C84400
*
Copper tubing & brass fittings
*
Inlet connection - 2-1/2" FNST Swivel
*
Pilot adjustment range - 20-175 psi
*
Inlet pressure gauge - 0-300 psi
*
Capacity - 500 gpm at 45 fps
*
Weight - 35 lbs
Watts
1116FH
22
FIRE HYDRANT RELIEF VALVE