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KENCO ENGINEERING COMPANY
VALVE REPLACEMENT KIT INSTRUCTIONS FOR MODEL KPFS LIQUID LEVEL
FLOAT SWITCH WITH THE ELASTOMERIC PAD STYLE BLEED VALVE
NOTE: Two styles of bleed valves have been produced for model KPFS Float Switches, a needle valve style and an elastomeric
pad style. These instructions and the RK-VALVE-KPFS-PAD valve replacement kit are for the elastomeric pad style
bleed valve. If your KPFS has a needle valve style bleed valve, an RK-VALVE-KPFS-NEEDLE kit is required along with
the RK-VALVE-KPFS-NEEDLE instructions.
RK-VALVE-KPFS-PAD VALVE REPLACEMENT KIT
The RK-VALVE-KPFS-PAD is the valve replacement kit for the Kenco pneumatic float switch model KPFS with the elastomeric
pad style bleed valve. The kit includes the one piece valve assembly, mounting screws, lock washers, o-rings and elastomeric
pad bleed valve seal. These components are shown in the middle view of figure 1. The KPFS was not always configured with the
one piece valve assembly shown. For several years the three main components of the valve were individually assembled to the
switch body and were held together with the mounting screws. The three piece configuration did not affect the performance of the
valve, but did complicate maintenance. The new one piece valve is a direct replacement for all KPFS switches and greatly simplifies
the maintenance of the KPFS. To get started with assembly, the old valve and switch assembly must be removed.
REMOVE SCREWS
SWITCH BODY
SWITCH ENCLOSURE
COVER
Refer to the illustrations in figure 1 for the valve removal process.
REMOVE VALVE AND SWITCH ASSEMBLY:
1. Turn off the supply line pressure to the valve if the system is pressurized.
2. Disconnect the supply and outlet lines. Disconnect the exhaust line if equipped.
3. Remove the switch enclosure cover.
4. Remove the two mounting screws holding the valve assembly in place and discard.
5. Remove the valve assembly. Remove all of the o-rings and discard.
6. Remove the two mounting screws holding the switch assembly in place and discard.
7. Remove the switch assembly.
8. Make sure the valve mounting surface on the switch body is clean and free of any dirt or debris. The KPFS is now ready to
have the new valve installed.
P.O. BOX 470426 TULSA, OK 74147-0426
PHONE (918) 663-4406 FAX: (918) 663-4480
Web: www.kenco-eng.com email: info@kenco-eng.com
VALVE ASSEMBLY
SMALL O-RINGS
VALVE
MOUNTING SCREWS
LOCK WASHERS
LARGE
O-RING
SWITCH ENCLOSURE
FIGURE 1
LOCK
WASHERS
SWITCH
ASSEMBLY
SWITCH
MOUNTING SCREWS
(89749 Rev A)
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Related Manuals for Kenco KPFS
Summary of Contents for Kenco KPFS
- Page 1 6. Remove the two mounting screws holding the switch assembly in place and discard. 7. Remove the switch assembly. 8. Make sure the valve mounting surface on the switch body is clean and free of any dirt or debris. The KPFS is now ready to have the new valve installed.
- Page 2 (bleed valve seal) and/or switch lever arm. 8. With the exhaust port facing the back of the KPFS switch body as shown in Figure 3, insert the valve into the KPFS switch body. Screw in and torque the mounting screws to approximately 20 in-lbs to secure the valve assembly in place.
- Page 3 •Make sure the switch float is in the “valve closed” position. On the KPFS-LR model, the switch float will need to be in the down position. On the KPFS-LF model, the switch float will need to be in the up position. You will know which model you have by the model number on the switch enclosure cover name tag.
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