Specifications

47
TANK RECIRCULATING - PUMP COOLER
One (1), gated 3/8" pump recirculating/cooling line, from pressure side of fire pump to water tank top to
be provided with: 3/8" female TIPT spud located at top front of water tank, high pressure tubing, and 3/8"
bronze body 1/4-turn ball style valve with chrome handle located on operator's control panel. Valve to be
identified as pump cooling line.
INDUSTRIAL PUMP DISCHARGE OUTLET CONTROLS AND ACTUATORS
All discharge valves shall have operating controls and actuators that allow the valve to be positioned
incrementally from closed to full open, and locked in any selected position. Each valve control is to be
adjacent to its respective pressure instrument.
Each of the specified 3" diameter or larger discharge valves are to have an operating mechanism which
shall not permit changing the position of the flow regulating element of the valve from full close to full
open, or vice versa, in less than 3 seconds.
DISCHARGE OUTLET BLEEDERS
Each of the following specified gated discharges shall be equipped with a "discharge outlet bleeder". The
outlet bleeders shall consist of: 3/4" high pressure flexible hose assemblies extending between discharge
valve and bleeder valve, 3/4" cast bronze or stainless steel bleeder valve mounted interior of pump
compartment (inside rear compartment-for rear discharges), and an exterior bleeder valve control handle
with color coded (to match corresponding discharge outlet) engraved or printed identification label. All
bleeder controls are to be located on the pump operator’s panel in a single row immediately above the
runningboard/floor level. The bleeder valves shall be rotating quarter-turn style equipped with
rectangular chrome plated control handles, which are horizontal when closed.
HOSE THREADS
Where specified, all screw-on/off threads shall be NST (National Standard Threads), all "sexless"
couplings shall be Storz.
"ROUND TUBULAR" STAINLESS STEEL DISCHARGE MANIFOLD
A stainless steel "round tubular" discharge manifold shall be furnished, flange bolted or Victaulic
clamped to and easily removable from, the fire pump's large diameter discharge outlet taps.
See following specifications describing the number/size/locations of outlet gate valves to be furnished.
Heavy wall threaded stainless steel pipe and pipe fittings shall be used, wherever possible, downstream of
the specified side outlet and top deluge discharge valves.
All flexible discharge lines and bleeder lines, downstream of respective valves, shall be reinforced high
pressure hose assemblies with stainless steel or brass end fittings.
Pressure gauge tubing lines shall be clear polypropylene with brass fittings, manifold drain lines (that are
not high pressure hose assemblies) shall be copper tubing.
All discharge manifolds and fittings, suction manifolds and fittings, discharge and suction valves,
tubing's, and hoseline assemblies shall be pressure tested after installation.