ITT ICS manual Piping General, Piping Suction, Piping Discharge, Wiring and Grounding

(1/4")

Finished grouting

(1/2 to 3/4")

Allowance for leveling

Wood frame

Grout hole Base

Grout

Leveling wedges or shims – left in place

Top of foundation – clean and wet down

Sleeve

Washer

Lug

• If pump must be installed above the liquid source, the

following MUST be provided:

• To avoid air pockets, no part of the piping should be

above the pump suction connection.

• Slope the piping upward from liquid source.

• All pipe joints MUST be airtight.

• Use a foot valve ONLY if necessary for priming or to

hold prime during intermittent duty.

• The suction strainer or suction bell MUST be at least

3 times the suction pipe diameter area.

• Insure that the size and minimum submergence over suc-

tion inlet is sufficient to prevent air from entering pump

Figure 1

•As depicted in Figure 1, place the baseplate on wedges, locating two wedges at each foundation bolt location. A gap of ¾" to 1½" (19 mm to 64 mm) is recommended between the baseplate and the foundation for grouting. Adjust the wedges as necessary to level the baseplate.

•Inspect baseplate for any distortion, and adjust as neces- sary. Make sure that any necessary final coupling alignments are possible within the motor movements and shim limits. Tighten the 4 foundation bolts finger tight.

•Build a dam around foundation and pour grout under the baseplate, insuring that the areas under the pump and motor are filled completely.

•Allow grout to harden for 48 hours before tightening

4 foundation bolts.

Piping – General

•For maximum pump capacity, piping should not be smaller than the pump suction and discharge.

•To minimize pipe friction losses, avoid unnecessary pipe and fittings.

•All piping MUST be independently supported and MUST NOT place any piping loads on pump.

NOTICE: DO NOT FORCE PIPING INTO PLACE AT PUMP SUCTION AND DISCHARGE CONNECTIONS.

Piping – Suction

•Short and direct suction piping is recommended. For suction lifts of over 10' (3 m) and liquid temperatures over 120° F (49° C), consult pump performance curve for net positive head required (NPSHR).

•If a pipe size larger than the pump suction is required, an eccentric pipe reducer, with the straight side up, MUST be installed at the pump suction.

•If the pump is installed below the liquid source, install a full flow isolation valve in the suction for pump inspection and maintenance.

NOTICE: DO NOT USE THE ISOLATION VALVE TO THROTTLE PUMP. THIS MAY CAUSE LOSS OF PRIME, EXCESSIVE TEMPERATURES AND DAMAGE TO PUMP, VOIDING WARRANTY.

through a suction vortex. See Figures 2 through 5.

H min.	H min.
D	D

Figure 2			H	Figure 3
			16
			15
		feet	14
			13
		in	12
		Submergence	11
			10
			9
	3.0D		8
			7
	min.	Min.	6
			4
			5
1.5D	H min.	H =	3
min.			2
			1
D	D min.	D		1 2 3 4 5 6 7	8 9 10111213141516 V
	2			V = Velocity in feet per second
				= GPM x 0.321	GPM x 0.4085
				Area	D2
Figure 4				Figure 5

Piping – Discharge

•Install a check valve, suitable to handle the flow and liquids, to prevent backflow. After the check valve install an appropriately sized gate valve to be used to regulate the pump capacity, pump inspection and maintenance.

•When required, the pipe increaser should be installed be- tween the check valve and the pump discharge.

Wiring and Grounding

WARNING	DISCONNECT AND LOCKOUT
	THE ELECTRICAL POWER BEFORE
Hazardous
	ATTEMPTING ANY MAINTENANCE.
voltage
	FAILURE TO DO SO CAN CAUSE A
	SHOCK, BURN OR DEATH.

•All wiring and grounding connections must be in accor- dance with Local and National Electrical Code require- ments.

•Use only stranded copper wire to the motor and ground. Wire size MUST limit the maximum voltage drop to 10% of the motor nameplate voltage, at the motor terminals. Excessive voltage drop may affect performance and will void the motor warranty.

•Single phase motors supplied by Goulds, have built in ther- mal overloads. Other motors not so equipped MUST

use a properly sized contactor and overload. Fuses are permissible.

•Three phase motors require all leg protection with properly

sized magnetic starters and thermal overloads.

4