FMC Corporation - Talstar FMC L06 - Manual (Page 12)

Doc No: OMM50000903
Rev: B Page 12 of 65
Subject to contractual terms and conditions to the contrary, this document and all the information contained herein are the confidential and exclusive
property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
model are provided on the product data sheets available through FMC or your
authorized FMC reseller. FMC does not recommend using the pump in static lift
conditions without prior factory approval.
4.5 Discharge Piping Recommendations
1. Route the discharge
piping in as short
and direct a route as
possible. Use the
same pipe size as
the outlet of the
pump. In
installations where
the discharge piping
is in excess of 50
feet (15 meters) it is
suggested to use the
next larger size pipe
to minimize friction
losses downstream
of the pump.
14.5 psi = 1 Bar
Table 1: Pipe Pressure Chart
CAUTION: Always use pipe or hose that is designed for your particular pressure
requirements. Inadequate pressure ratings can allow hose or pipe to fail,
resulting in equipment damage and possibly personal injury. Normal hose
pressure ratings are clearly marked on the outer surface of the hose.
Working pressure ratings for steel pipe can be obtained from the
manufacturer or from the chart shown in Table 1.
2. Always use a pressure gage in the pump discharge line. A properly
functioning gage mounted at the pump (and before any valves) is required to
accurately determine the operating pressure of a pump and to conduct
troubleshooting.
3. Insure that all piping is supported independently of the pump to reduce vibrations
and strain on the pump. Pulsation dampeners on the discharge are
recommended to reduce pressure pulsation and resulting vibration. The use of
elbows, nipples, unions, or other fittings should be kept to an absolute minimum.
Avoid short radius 90
°
elbows; use two long radius 45
°
elbows instead. To help
isolate mechanical and hydraulic vibrations, FMC recommends the use of flexible
pipe couplings or hose connections between the pump and any rigid piping or the
use of pulsation dampeners.
4. A properly adjusted pressure relief valve or rupture disc must be installed directly
downstream of the pump to prevent damage or injuries resulting from over
pressure or deadhead conditions. The relief valve discharge line must be as large
as the pipe outlet of the relief valve. Never install valves in the relief valve
Allowable Working Pressure For Steel Pipe (PSI @ 100F)
Pipe Pipe Schedule Number
Size (inches) 40 80 120 160 XX
1/2 2,300 4,100 7,300 12,300
3/4 2,000 3,500 8,500 10,000
1 2,100 3,500 5,700 9,500
1 1/4 1,800 3,000 4,400 7,900
1 1/2 1,700 2,800 4,500 7,200
2 1,500 2,500 4,600 6,300
2 1/2 1,900 2,800 4,200 6,900
3 1,600 2,600 4,100 6,100
3 1/2 1,500 2,400 5,600
4 1,400 2,300 3,350 4,000 5,300
5 1,300 2,090 2,950 3,850 4,780
6 1,210 2,070 2,850 3,760 4,660
8 1,100 1,870 2,840 3,700 3,560