Pump Solutions Group Neptune Series 500 Specs Industrial - Manual (Page 5)

Neptune Chemical Pump Co.
P.O. Box 247
Lansdale, PA 19446 Phone: 215-699-8700
Fax: 215-699-0370
800 Fax: 800-255-4017
www.neptune1.com
NEPTUNE/CHEMICAL FEED SYSTEM SPEC 10-18-00 jvb ZL107972
5
(Note to Specification Writer: Specify discharge piping if more than one pump
is piped to a common outlet.)
Two Pump System: Pump discharges shall be piped to a
common outlet using (PVC/steel/304SS/316SS/other) (tubing/pipe). A
(PVC/steel/stainless steel) valve shall be provided at each pump
discharge.
Three Pump System: Pump discharges shall be piped to two
outlets with the center pump piped as spare for either of the other
pumps.
Pump discharge piping shall be
(PVC/steel/304SS/316SS/other) (tubing/pipe). A total of four
(PVC/steel/stainless steel) valves shall be provided in the discharge
piping.
7.0 ACCESSORIES
7.1. The Chemical Feed Systems shall include the following
accessories:
7.2. Calibration column with isolation valve, provided on suction line
branched between tank isolation valve and strainer. Column shall
be sized to allow at least a one minute draw-down test.
7.3. Pressure gauge with (snubber/diaphragm seal) shall be mounted
on pump discharge. Gauge shall be furnished with valves for
isolation and test. Pressure gauge should be sized at least 25%
higher than the maximum pump internal relief valve setting.
7.4. Back pressure valve sized to provide a minimum of 50 psi back
pressure.
7.5. Relief valve and return line to tank shall be provided at the discharge
of each metering pump. External relief valve shall be set at a
pressure lower than the pump internal relief valve. Return piping
shall be transparent to allow viewing of liquid in the line.
7.6. Level switch (PVC/stainless steel) float type, SPDT rated 10 amp to
actuate 1" above suction outlet.
7.7. Level gauge (valved tubular/unbreakable non-valved) level gauge
shall be included.