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Watts Vacuum Breaker: 1 LF800M4-FR, FNPT x FNPT, For Water Media, 33°F – 140°F - Lead-Free Pressure Vacuum Breakers
WattsLead-Free Pressure Vacuum Breakers

Watts Vacuum Breaker: 1 LF800M4-FR, FNPT x FNPT, For Water Media, 33°F – 140°F

The WATTS 1 LF800M4-FR is a lead-free pressure vacuum breaker designed for water media in high health hazard applications. It features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

SKU 3G-OTH-446165

Brand
Watts
Item
Vacuum Breaker: 1 LF800M4-FR, FNPT x FNPT, For Water Media, 33°F – 140°F
Category
Lead-Free Pressure Vacuum Breakers
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Technical Specifications

Watts
Manufacturer Part Number
1 LF800M4-FR
Type
FNPT x FNPT, For Water Media, 33°F – 140°F, High Health Hazard
Connection Type
FNPT x FNPT
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS 1 LF800M4-FR is a lead-free pressure vacuum breaker designed for water media in high health hazard applications. It features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

Frequently Asked Questions

What is the WATTS 1 LF800M4-FR vacuum breaker used for?

The WATTS 1 LF800M4-FR is a lead-free pressure vacuum breaker used to prevent backflow in high health hazard water systems. It protects potable water supplies from contamination by releasing pressure and admitting air when system pressure drops, commonly installed in commercial and industrial plumbing applications.

What are the specifications of the WATTS 1 LF800M4-FR?

The WATTS 1 LF800M4-FR is a lead-free pressure vacuum breaker with FNPT x FNPT connections. It is designed for water media and operates in a temperature range of 33°F to 140°F. The manufacturer part number is 1 LF800M4-FR, and it is rated for high health hazard applications.

Where to buy the WATTS 1 LF800M4-FR worldwide?

You can source the WATTS 1 LF800M4-FR through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive sourcing for this WATTS vacuum breaker.

How to install a WATTS pressure vacuum breaker?

Install the WATTS pressure vacuum breaker vertically with the inlet and outlet connected via FNPT fittings. Ensure it is at least 12 inches above the highest downstream outlet. Follow local plumbing codes and the manufacturer's instructions. Test for proper operation after installation to confirm backflow prevention.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts lead-free pressure vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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