Page 46 - Jet Pumping Station

Systems without Shutoff Guns or Valves .SYSTEM PRESSURE INCREASE
NOTE: When making this adjustment, you must be able to When Going From
observe the amount of fluid being bypassed.
1. Turn off the system. 10% Continuous Bypass to 100% Bypass
2. Turn the adjusting nut counterclockwise until there is Mode I C22AD PSI at 4 GPM PSI at 10 GPM
40
20
3. no longer any pressure on the springs in the regulating valve. Model C22AA 40 75
4. With an accurate pressure gauge installed in the system, start the Model C22AB 50 100
system and let it run for a few minutes to remove any air. The full Model C22AC 100 200
flow of the pump should be bypassing. Model C23AD PSI at 10 GPM PSI at 20 GPM
30
15
5. Be sure all nozzles are open. Model C23AA 25 50
6. When all air has been removed, begin turning the adjusting nut Model C23AB 50 100
clockwise until the desired bypass pressure is reached, or until no Model C23AC 100 200
fluid is being bypassed – whichever occurs first. Do not exceed Model C24AD PSI at 20 GPM PSI at 40 GPM
10
20
the maximum rated pressure of the pump or the regulating Model C24AA 20 40
valve! Model C24AB 50 100
7. If the system discharge pressure is less than desired, check the Model C24AC 100 200
pump speed and delivery and the size of the nozzle or system
orifice.
8. When both the bypass pressure and the flow have been set, turn TROUBLESHOOTING
the locknut clockwise to lock in the adjustment. The regulating Excess Pressure Required to Bypass Fluid
valve has a hole through the body near the inlet port, and a hole Regulating valve pressure not properly adjusted
through the adjusting nut. When the pressure is set, tie a wire Not enough fluid being continuously bypassed
through these holes and seal it, to prevent readjustment. Nozzles worn
REPAIR Fluid Leaking from Hole in Top of Adjusting Nut
The valve can generally be repaired in place, without removing it from Worn seals
the system. System Losing Pressure
When disassembling, note the number of spring disks and their Nozzles worn.
arrangement. They must be reinstalled in the same arrangement. Pump RPM reduced
The seal (9) and back-up seal (8) must be replaced together: don't Regulating valve pressure not properly adjusted
replace one without the other. Worn pump components
SPRING DISK SIZE AND ARRANGEMENT Regulating valve seat or ball worn
System drawing in air
Too much fluid being bypassed
Pressure Spikes
Minimum bypass of 10% not being maintained
Nozzles worn
Regulating valve pressure not properly adjusted

VALVE DISK SIZE QUANTITY
MODEL OD x ID x Thickness USED LIMITED WARRANTY
C22AD (3-10 gpm, 20 x 10.2 x 0.5 mm 20 (single stack)
50-200 psi)
C22AA (3-10 gpm, 20 x 10.2 x 0.8 mm 18 (single stack) Wanner Engineering, Inc.. extends to the original purchaser of
200-500 psi) equipment manufactured by it and bearing its name, a limited one-
C22AB (3-10 gpm, 20 x 10.2 x 1.2 mm 15 (single stack) year warranty from the date of purchase against defects in material
or workmanship, provided that the equipment is installed and oper-
500-1000 psi)
C22AC (3-10 gpm, 20 x 10.2 x 1.5 mm 13 (single stack) ated in accordance with the recommendations and instructions of
Wanner Engineering, Inc.. Wanner Engineering, Inc. will repair or
1000-1500 psi) replace, at its option, defective parts without charge if such parts
C23AD (3-10 gpm, 28 x 12.2 x 0.7 mm 22 (single stack) are returned with transportation charges prepaid to Wanner Engi-
neering, Inc., 1204 Chestnut Avenue, Minneapolis, Minnesota
50-200 psi)
C23AA (10-20 gpm, 28 x 12.2 x 1.0 mm 18 (single stack) 55403.
200-500 psi) THIS WARRANTY DOES NOT COVER:
1. THE ELECTRIC MOTORS (IF ANY), WHICH ARE COVERED
C23AB (10-20 gpm, 28 x 12.2 x 1.5 mm 16 (single stack) BY THE SEPARATE WARRANTIES OF THE MANUFACTURERS
500-1000 psi)
C23AC (10-20 gpm, 28 x 12.2 x 1.5 mm 18 (double stack) OF THESE COMPONENTS.
2. NORMAL WEAR AND/OR DAMAGE CAUSED BY OR RE-
1000-1500 psi) LATED TO ABRASION, CORROSION, ABUSE, NEGLIGENCE,
C24AD (20-40 gpm, 35.5 x 18.3 x 0.9 mm 24 (single stack) ACCIDENT, FAULTY INSTALLATION OR TAMPERING IN A
MANNER WHICH IMPAIRS NORMAL OPERATION.
50-150 psi) 3. TRANSPORTATION COSTS.
C24AA (20-40 gpm, 35.5x 18.3 x 0.9 mm 32 (double stack) THIS LIMITED WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF
100-300 psi)
ANY OTHER WARRANTIES (EXPRESS OR IMPLIED) INCLUD-
C24AB (20-40 gpm, 35.5 x 18.3 x 2.0 mm 17 (single stack) ING WARRANTY OF MERCHANTABILITY OR WARRANTY OF
300-1000 psi) FITNESS FOR A PARTICULAR PURPOSE AND OF ANY NON-
CONTRACTUAL LIABILITIES INCLUDING PRODUCT LIABILI-
C24AC (20-40 gpm, 35.5 x 18.3 x 2.0 mm 20 (double stack) TIES BASED ON NEGLIGENCE OR STRICT LIABILITY. EVERY
1000-1500 psi) FORM OF LIABILITY FOR DIRECT, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSS IS EXPRESSLY EX-
CLUDED AND DENIED.

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