Drop Pipe, Check Valves | Franklin Submersible Well Pump specs

WARNING

To insure correct rotation of three phase units, brace pump shell securely and apply power momentarily by snapping line switch quickly on and off. If rotation is correct, reaction of the shell will be clockwise when viewed from pump discharge (that is, pump shaft will rotate counter clockwise). Interchange any two leads at magnetic starter to reverse rotation.

5.Run pump and motor unit for a few seconds to ensure that it is in working order.

FIGURE 1 - Installation Diagram

Pressure Tank

See Wiring Diagrams

Pressure Switch

DROP PIPE

Galvanized pipe is recommended for suspending submersible pumps into the well. Plastic pipe may be used only when observing the plastic pipe manufacturer’s recommendations of depth and pressure. Give special consideration to:

1.A safety cable to prevent loss of pump if pipe should break.

2.Torque arrestor just above pump to prevent chaﬁng the cable when pump and pipe twist during the starting and stopping cycle. (See Figure 1)

Schedule 40 galvanized pipe is suitable for settings to 600 feet(180m). For deeper settings, use schedule 40 pipe for the bottom 600 feet(180m), and schedule 80 for the remainder.

Sanitary Well Seal or Pitless Adapter

Drop Pipe

	Spring-Loaded
	Check Valve	Gate Valve
Discharge Pipe
Submersible Cable	Pressure Relief Valve	Service Pipe
Submersible Cable

Pressure Gauge

Spring-Loaded Check Valve (Recommended every 100’/30m)

Safety Cable

Cable

(secured to drop pipe with tape or clamps every 10’/3m)

Torque Arrestor
Well Casing
Spring-Loaded
Check Valve
at Pump Discharge
Submersible	Note: Keep pump at least 5’ from
Pump Unit	bottom of well and above well screen
	or casing perforations.
Suction Screen
Motor
Well Screen or
Casing Perforations

Take great care to keep pipes clean and free from pebbles, scale and thread chips. Make sound, air-tight connections at all ﬁttings. Pipe sealant is recommended.

CHECK VALVES

Many pumps have a built-in or externally supplied check valve. For a pump without one, install a check valve immediately above the pump. Install an additional check valve above the ground. If the pump is more than 100 feet (30m) below the wellhead, install another check valve in the drop pipe 100 feet (30m) above it. For pump settings deeper than 200 feet (60m), install additional check valves at intervals of 100 feet (30m).

REMOVABLE POPPET CHECK VALVE

4” submersible pumps with a 1-1/4” discharge are supplied with a spring-loaded REMOVABLE poppet style check valve assembly. The check valve can be removed from the pump discharge when the pump is installed in

SUITABILITY OF WELL

Install the pump only in a well that has been properly developed. Water from an undeveloped well often contains an excessive amount of sand, dirt, and abrasives which can damage the pump. Check that the well is large enough to allow the pump to be set at the required depth. Don’t set the pump below the casing perforations or well screen unless you make arrangements to ensure an adequate ﬂow of water over the motor for cooling purposes. Determine the correct pump setting from the driller’s record by taking into account the static water level and the drawdown at the proposed pumping rate. Keep the pump at least ﬁve feet from the bottom of a drilled well.

SPLICING THE POWER CABLE

Follow the instructions enclosed in the cable splicing kit you purchase.

applications where drain back is desired.

Fluid draining back through the pump can cause the pump to rotate backwards. If pump/ motor starts during this time; damage to the pump can occur.

The check valve can be removed with the use of the T-Handle Poppet Wrench(part no. 23498207). Ordered separately. Or, with standard needle nose pliers. The poppet assembly is left hand threaded and is removed by turning CLOCKWISE.

If reinstalling a Popppet Check Valve assembly, the assembly should be tightened to 15 inch-pounds.

Poppet Assembly

T-Handle Poppet Wrench