Craftsman 390.262454 Pump Installation, Discharge Pipe Sizes, Lawn Sprinkling Application

INSTALLATION (Continued)

2.To aid priming on driven point installations, install a line check valve as shown in Figure 2. Be sure check valve flow arrow points toward pump.

DISCHARGE PIPE SIZES

1.If increasing discharge pipe size, install reducer in pump

discharge tapping. Do not increase pipe size by stages.

2.When the pump is set away from the points of water use,

the discharge pipe size should be increased to reduce

pressure losses caused by friction.

•Up to 100' run: Same size as pump discharge tapping.

•100' to 300' run: Increase one pipe size.

•300' to 600' run: Increase two pipe sizes.

LAWN SPRINKLING APPLICATION

This pump is designed for lawn sprinkling. It is designed to deliver plenty of water at full sprinkler pressure. It can pump from a pond, cistern or well points.

Pump discharge can be divided to supply two (2) or more

To

Service

Priming

Plug

Valve

sprinkler systems. A suggested multiple discharge to service is shown in Figure 3.

Do not use in a pressure tank or booster pump application.

Pump/Piping Installation

PUMP INSTALLATION

NOTICE: Use Teflon tape supplied with the pump for mak-

ing all threaded connections to the pump itself. Do not use

pipe joint compounds on the pump: they can react with the plastic in the pump components.

1.Bolt pump to solid, level foundation.

2.Support all piping connected to the pump.

3.Wrap 1-1/2 to two layers of Teflon tape clockwise (as you

face end of pipe) on all male threads being attached to pump.

4.Tighten joints hand tight plus 1-1/2 turns. Do not over- tighten.

NOTICE: Install pump as close to water source as possible. Long piping runs and many fittings create friction and re- duce flow.

Use schedule 80 or iron pipe. See "Well Pipe Installation" for more information.

		846		O494			Figure 4 - Bolt		Pump		Figure 5 - Independently
Figure 3 - Multiple		Discharge					Down				Support	All Piping
											Attached	To Pump
		TABLE II -		PERFORMANCE		CHART	(IN	GALLONS	PER MINUTE)
		390.262454					390.262553				390.262653
DISCHARGE		1 H.P,					1-1/2	H,P.			2 H.P.
PRESSURE						DISTANCE	ABOVE TO WATER
PSI	5'	10'		15'	20'	5'	10'	15'	20'	5'	10'	15'	20'
10	55	49		48	45	67	61	56	46	69	67	65	62
15	51	46		45	44	66	58	55	45	65	63	60	58
20	45	42		39	37	61	56	54	44	59	56	54	52
25	38	35		32	29	55	52	51	43	52	50	48	45
30	31	28		24	20	48	45	44	37	47	45	42	40
35	23	19		16	11	39	37	34	28	42	38	35	32
40	17	13		6	-	33	27	20	11	34	30	27	23
45						18	14	8	-	25	18	13	10
5O										14	7
DISCHARGE		1-1/2"	NPT				1-1/2"	NPT			2" NPT
PIPE TAPPING
SUCTION		1-1/2"	NPT				1-1/2"	NPT			2" NPT
PIPE TAPPING