Darley Pumps

 

jmp1
 

Darley

Model:     JMP 500
Availability:    Complete pump - 6-8 weeks
     Parts - Normally Stocked
   

 

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Replacement Parts:

2906800
JMP IMPELLERS
Part# LH-2906800, RH-2906801
Availability: Normally Stocked

The JMP pump uses two impellers, make sure to make note the RH vs. LH when taking them out!

5020104 JMP IMPELLER SHAFT
Part# 5004904, 5004905, 5020104
Availability: Normally Stocked

The impeller shaft is driven from the gears in the speed increaser, and it turns the impellers. It is also sealed by the pump packing material, or mechanical seal. These will vary a LOT, so make sure to check your serial number!

2152400 JMP STUFFING BOX
Part# 2152400
Availability: Normally Stocked

The stuffing box is the housing for the pump packing. The shaft goes through the center of it, and it has a whole on the side where the packing is "stuffed" through with the packing nut. Make sure to use Green Loctite when installing!

3817104
PUMP PACKING PELLETS -
TUBE OF 8

Part# 3817104
Availability: Normally Stocked
      
install
Packing
Procedure

These pellets are used in all of the Darley style packing pumps. When your pump is leaking too much water, most of the time you can just add a pellet, adjust it correctly, and you're good to go. Remember that your pump is SUPPOSED to drip about 20-60 times per minute. DO NOT adjust the packing nut so tight that your pump doesn't drip, extreme damage will occur!

5325501 JMP CONTROL VALVE
Part# 5325501
Availability: Normally Stocked

The control valve is what changes the waterflow to between pressure and volume. It is acutated from an air cylinder that is operated from the pump panel.

vm00104 JMP PRESSURE/VOLUME AIR VALVE
Part# VM00104
Availability: Normally Stocked

This air valve is mounted on the pump panel, and it operates the air cylinder that actuates the control valve to switch between pressure and volume.

2600056 DARLEY MICROSWITCH
Part# 2600056
Availability: Normally Stocked

This microswitch is used in various Darley applications. On the JMP, there are two of these, one in each position of the air cylinder for pressure/volume to illuminate the appropriate panel light.

KG01500 JMP GASKET KIT
Part# KG01500
Availability: Normally Stocked

This gasket kit contains all of the gaskets and o-rings found on the JMP pumps. It's a must have for any pump work.