
Wilo USA LLC
Tel: 888-945-6872
Fax: 888-945-6873
Web: www.wilo-usa.com
Wilo Canada Inc.
Tel: 866-945-6236
Fax: 403-277-9456
Web: www.wilo-canada.com
Wilo Mexico
Tel: + 52 55 5586 3209
Fax: + 52 55 5586 3209
Web: www.wilo-mexico.com
Wilo JetValve - Installation and Operation Manual
1General (header box)
1.1 General (Sub Header)
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Imminently Hazardous Situation!
This will blow you up if you screw with it!
1Wilo JetValve™
Installation and Operating Instructions
Carefully read instructions before installing!
1.1 Application
The Wilo JetValve™ was designed to provide instant hot 
water at any faucet, while also helping to conserve water. 
Since the JetValve™ does not require return piping to the 
waterheater,itisanidealretrotandnewconstruction
solution where a dedicated hot water return line is 
impractical and/or cost prohibitive. 
1.2 Operation
As the water at the hot water faucet cools below the 
JetValve™ low temperature setpoint, the valve opens, 
allowing cool water to be injected into the cold water 
line. When the water reaches the vavle high temperature 
setpoint, the valve closes. 
TheJetValve™isequippedwithaowrateadjustment
screw, allowing you adjust the temperature balance as 
desired. A check valve is also equipped in the valve to 
preventbackowwhenthefaucetisopened.
 WARNING:
Installation should be performed by a qualied 
professional only, in accordance with all applicable codes. 
Be sure the power to the circulator is turned off, as well 
as the hot and cold water supplies to avoid injury and/or 
property damage.
Prior to installation, ush all piping, to remove material 
that could block or damage the equipment.
2Installation
2.1 1. Install the circulator according to manufacturer’s 
instructions to pump hot water away from the heater.
2. Connect the hot and cold water supply to the JetValve 
½”NPTinletswiththeincludedexhose.
3. Connect the faucet to the JetValve™ ⅜” NPT outlets 
withtheincludedexhose.
4. Check the installation for leaks:
• Ensure the faucet is closed
• Open the hot and cold water supply valves
• Open the facuet hot and cold taps to purge air
• Close faucet
• Inspect all piping connections for leakage. If a leak 
exists, close hot and cold supply valves until leaks 
are corrected
• Repeat step 4
5. Connect power to the circulator and verify operation
2.2 TheJetValve™hasaowrateadjustmentscrewtosuit
application conditions and/or preferences.
1. To increase water temperature at the hot water faucet, 
turntheowrateadjustmentscrewcounter-clockwise
2. To decrease the water temperature at the hot water 
faucet,turntheowrateadjustmentscrewclockwise
3. Tocompletelystopowthroughthevalve,turnthe
adjustment screw clockwise until it stops 
Allow several hours after valve adjustment for the system to 
stabilize before re-evaluating water temperature.
Faucet Cold
Supply Cold
Faucet Hot
Supply Hot
Flowrate 
Adjustment 
Screw
Technical Data - Wilo JetValve™
Housing Forged brass with Noryl Cap
Internal Components Stainless steel/Plastic with EPDM O-rings.
Connections ⅜” hot & cold male compression thread outlets
½” hot & cold male IPS inlets
Flowrate 0-100% Slotted screw
Max. Working Pressure 125 PSI
Max. Water Temp. 150°F (66°C)
Maintenance Self-cleaninglter,maintenance-free