Pump Solutions Group Neptune Series 500 Specs Municipal - Manual (Page 3)

7-01-2001 3
B. Y-Strainer – Each pump suction shall be supplied with a 40-60 mesh
“Y ”-strainer to prevent foreign material from getting into the ball
checks of the metering pump. The strainer shall be constructed of
material suitable for the chemical service.
C. Back Pressure Valve – Provide a properly sized diaphragm-type back
pressure valve to be mounted in each pump discharge line. Valve
construction shall be suitable for the chemical service with a Teflon
diaphragm. Back pressure valve shall be field adjustable.
D. Relief Valve – Provide a properly sized relief valve for installation in
the pump discharge line. Valve construction shall be suitable with the
chemical service. Safety relief valve shall be field adjustable.
E. Pulsation Dampener – A pulsation dampener shall be provided in each
pump discharge line sized to provide a 90% or 95% degree of
dampening. The pulsation dampener shall be hydropneumatic vertical-
type with two chambers separated by a single, elastomeric bladder.
Pulsation dampener shall be supplied with a gas charge valve and 2 1/2”
pressure gauge. Material of construction shall be suitable for the
chemical service.
F. Injection Quill or Corporation Stop with Quill
The injection quill shall be a one-piece quill with spring-loaded
check valve to prevent back flow. Material of construction shall
be suitable for the chemical service.
OR
The corporation stop shall be furnished with a quill, which is
retractable through the corporation stop and shall be removable
for cleaning. Material of construction of the quill shall be suitable
for the chemical service.
G. Pressure Gauge – Provide a pressure gauge for each pump discharge
line. Pressure gauge shall be provided with a 2 1/2” dial and shall have a
diaphragm seal constructed of a material, which is suitable for the
chemical service.