Watts Jumper Kits User Manual
Jumper Kits
Temporary Bypass for Water
Pressure Reducing Valves
Size: 3/4" – 11/4" (20 – 32mm)
Jumper Kits are used in new construction as a temporary
bypass, prior to the actual installation of a water pressure
reducing valve on potable water supply systems.
The use of a temporary jumper permits testing of the building piping system for leaks and pressure loss and facilitates
pipe flushing prior to the installation of the water pressure
reducing valve. On unsecured job sites, the jumper kit
reduces loss from theft or vandalism.
Jumper Kits come complete with union connections, washers,
and a brass or plastic pipe nipple with male union threads.
The length of the jumper nipple matches the valve lay
length,
allowing the piping to be completed prior to the installation
of a water pressure reducing valve and permitting quick
change out from the jumper to the valve.
The jumper kits include a stainless steel strainer screen to
provide protection from debris downstream of the valve.
For Commercial and Residential Applications
ES-JumperKits
Job Name
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Approval
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Engineer
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Approval
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Jumper Kits Include: Jumper Nipple, strainer screen, 2 fiber washers,
2 union nuts and tailpieces as described above. Jumper Kits are the
correct lay length for the following water pressure reducing valves:
N35B, N35B-Z3, N45B, 25AUB-DULF, 25AUB-DU LF-Z3, N55B-LF.
When removing Jumper Nipple and inserting the water pressure
reducing valve, two O-rings (ordered separately) are required.
Refer to literature PL-RP-GP for O-ring ordering information.
COMPLETE KITS WITH PLASTIC NIPPLE FEMALE X FEMALE COPPER SWEAT TAILPIECE1
Kit Size
JK P-345 S
3
⁄4" 20mm
JK P-25S
3
⁄4" 20mm
JK P-345 S 1" 25mm
JK P-25 S 1
1
⁄4" 32mm
JK P-55 S 1
1
⁄4" 32mm
COMPLETE KITS WITH BRASS NIPPLE FEMALE X FEMALE COPPER SWEAT TAILPIECE1
Kit Size
JK B-345 S
3
⁄4" 20mm
JK B-25S
3
⁄4" 20mm
JK B-345 S 1" 25mm
JK B-25 S 1
1
⁄4" 32mm
JK B-55 S 1
1
⁄4" 32mm
FEMALE COPPER SWEAT X MALE BRASS SWEAT TAILPIECE1
Kit Size
JK P-345 SM
3
⁄4" 20mm
JK P-345 SM 1" 25mm
MALE X MALE BRASS SWEAT TAILPIECE1
Kit Size
JK P-345 MM 1" 25mm
Size:
3
⁄4", 1", 11⁄4"
Jumper Kit Designation:
Nipple Type:
B = Brass P = Plastic
Fits Valve Model:
25 = 25AUB 345 = N35, N45, N55
Connection:
M = Male brass solder S = Female copper solder
How to order jumper kits
3
/4" JK P-345 S
Jumper Kit
Kit Consists of:
A – Union Nut (2) C – Fiber Washer (2)
B – Sweat Tailpiece (2) D – Jumper Nipple E – Screen
A
B
C
E
D
Example:3/4" JK P-345 S
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without
prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
ES-JumperKits 0401 ©Watts Regulator Company, 2006
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
Water Safety & Flow Control Products
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