Specifications

45
"ROUND TUBULAR" HIGH-FLOW SUCTION MANIFOLD PIPING
A stainless steel "high-flow" round tubular suction manifold shall be furnished, flange bolted or Victaulic
coupled to and easily removable from, the fire pump's volute suction inlet. All auxiliary side threaded
taps and/or Victaulic risers shall be "coped" to conform to radius of larger size waterway, so as to provide
unsurpassed flow characteristics.
ANODE, INLET
One (1) sacrificial zinc anode shall be provided in the water pump inlet manifold, to protect the pump
from corrosion.
PUMP SUCTION INLETS
Following specified pump manifold inlets shall be of proper inside diameter for rated pump capacity,
equipped with zinc die cast screens so as to provide cathode protection for pump waterways.
All intakes shall be provided with suitable closures capable of withstanding 500 psi; threaded caps shall
be chrome plated brass, rocker lug 3" and smaller, long handled larger than 3".
INLET BLEEDER VALVES
Where specified, each gated intake shall be equipped with a bleeder valve located inside pump
compartment (inside rear compartment-for rear suctions), upstream gate valve, with remote bleeder
control in close proximity to the intake. The gated inlet bleeders shall consist of: 3/4" high pressure
flexible hose assemblies extending between suction valve and bleeder valve, 3/4" cast bronze or stainless
steel bleeder valve, exterior bleeder valve control handle, and an engraved or printed identification label.
Bleeder controls for all gated inlets are to be located in the pump operator’s panel. 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.
PUMP OVERHEAT PROTECTION
One (1), Waterous Overheat Protection Manager (OPM) model #82516-1A, thermal relief style valve to
be furnished, installed. The OPM consists of a valve that automatically opens when the water in the pump
reaches 140 degrees and a warning light located on the pump operator's panel that is triggered by a
thermal switch when the water in the pump reaches 180 degrees. Discharge shall be "to ground".
The
warning light and test button shall be mounted to a heavy polished casting that is mounted to the pump
operator's panel.
SELF BLEEDING SUCTION CAPS
The specified "threaded" suction caps shall be the VLH Class-1, Trident or equivalent which incorporates
a cross-machined thread design to automatically relief stored pressure in the line during un-capping.