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Watts Freeze Resistant Vacuum Breaker: 800M4-FR, FNPT x FNPT, For Water Media - Pressure Vacuum Breakers
WattsPressure Vacuum Breakers

Watts Freeze Resistant Vacuum Breaker: 800M4-FR, FNPT x FNPT, For Water Media

The WATTS 800M4-FR is a freeze-resistant pressure vacuum breaker designed for water media. It features FNPT x FNPT connections and is constructed from bronze, with an operating temperature range of 33°F to 140°F.

SKU 3G-OTH-430690

Brand
Watts
Item
Freeze Resistant Vacuum Breaker: 800M4-FR, FNPT x FNPT, For Water Media
Category
Pressure Vacuum Breakers
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Technical Specifications

Watts
Manufacturer Part Number
800M4-FR
Type
FNPT x FNPT, For Water Media, 33°F – 140°F, Bronze
Connection Type
FNPT x FNPT
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS 800M4-FR is a freeze-resistant pressure vacuum breaker designed for water media. It features FNPT x FNPT connections and is constructed from bronze, with an operating temperature range of 33°F to 140°F.

Frequently Asked Questions

What is the WATTS 800M4-FR freeze resistant vacuum breaker used for?

The WATTS 800M4-FR is a freeze-resistant pressure vacuum breaker designed for water media. It protects potable water supplies from backflow contamination in outdoor or cold-weather installations, such as irrigation systems, where freezing temperatures are a concern.

What are the specifications of the WATTS 800M4-FR?

The WATTS 800M4-FR is a bronze pressure vacuum breaker with FNPT x FNPT connections. It operates in water media from 33°F to 140°F. The manufacturer part number is 800M4-FR. This WATTS model is engineered for freeze resistance in backflow prevention applications.

Where to buy the WATTS 800M4-FR worldwide?

3G Electric supplies the WATTS 800M4-FR freeze-resistant vacuum breaker to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact 3G Electric for a quote and lead time on this WATTS backflow prevention component.

How to install the WATTS 800M4-FR freeze resistant vacuum breaker?

Install the WATTS 800M4-FR in a vertical position with the inlet below the outlet. Ensure the FNPT connections are sealed with approved thread tape. Protect the breaker from debris and allow clearance for maintenance. Follow local plumbing codes and WATTS guidelines for freeze-resistant backflow preventers.

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 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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