Watts Vacuum Breaker
Sizes: 1⁄2" mpt
Lead Free* Water Service Vacuum Relief Valves
Series LFN36 Lead Free* Water Service Vacuum Relief Valves are used in water heater/tank applications to automatically allow air to enter into the piping system to prevent vacuum conditions that could siphon the water from the system and damage water heater/tank equipment. It consists of a Lead Free* brass body construction with NPT male inlet connection, and a protective cap. Series LFN36 has a low profile design, is tested and rated to ANSI Z21.22, and is CSA certified. It is suitable for low pressure steam and water service, and is ideal for use in domestic water heaters and supply tanks, table top heaters, jacketed steam kettles, unit heaters, low pressure steam systems, and steam coil heaters. Maximum Working Pressure: 200psi (13.8 bar), Maximum Steam Pressure: 15psi (103 kPa).
The Watts LFN36-M1 Vacuum Relief Valve permits air to enter and prevent vacuum conditions that could siphon the water from the system, resulting in collapse of a tank or water heater or equipment burn out.
HELP » Contact Customer Support
• Toll-Free help line offering product info and ordering support
• Online e-mail technical and installation support
• Domestic water heaters and supply tanks
• Solar water heater systems
• Table top heaters
• Solar pool heating systems
Note: Vacuum relief valves are not designed or approved as
back-siphonage backflow preventers. For protection against
back-siphonage install Watts Series 288A vacuum breakers.
LFN36-M1 Installation Instructions
LFN36-M1 Data Sheet
A typical solar domestic water heating system components and layout is shown below.
Product Limited Warranty: Watts Regulator Company warrants each product against defects in material and workmanship for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge. This shall constitute the exclusive remedy for breach of
warranty, and the Company shall not be responsible for any incidental or consequential damages, including without limitation, damages or other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemicals, or any other circumstances over which the Company has no control.
This warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the product. THE COMPANY MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED EXCEPT AS PROVIDED IN THIS LIMITED WARRANTY.
Product Manufacturer: Watts Industries Inc.
*The wetted surface of our Lead Free products contacted by consumable water contain less than one quarter of one percent (0.25%) of lead by weight.
Processing and Delivery Information: Please allow Processing Time as stated above for your order, plus standard transportation delivery time. Orders placed after 2PM EST may not begin processing until the next business day. Please call for Rush Processing and/or Rush Shipping options.