Pulsafeeder PulsaPro 900 EN - Manual (Page 14)

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5.3 Piping System
Figure 8A
All piping systems should include:
1. Shutoff valves and unions (or flanges) on suction and discharge piping.
a) This permits check valve inspection without draining long runs of piping.
b) Shutoff valves should be of the same size as connecting pipe.
c) Ball valves are preferred since they offer minimum flow restriction.
2. An inlet strainer, if the process fluid is not a slurry.
a) Pump check valves are susceptible to dirt and other solid contaminants unless designed
for that service, and any accumulation can cause malfunction.
b) The strainer should be located between the suction shutoff valve and the pump suction
valve.
c) It must be sized to accommodate the flow rate and the anticipated level of contamination.
d) 100 mesh screen is recommended.
3. Vacuum/pressure gauges in the suction and discharge lines in order to check system operation.
a) Gauges should be fitted with protective shutoff valves for isolation while not in use.
DISCHARGE
RETURN TO TANK
FROM SUPPLY TANK