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Watts Vacuum Breaker: 1/2 800M4-QT, FNPT x FNPT, For Water Media, 33°F – 140°F - Pressure Vacuum Breakers
WattsPressure Vacuum Breakers

Watts Vacuum Breaker: 1/2 800M4-QT, FNPT x FNPT, For Water Media, 33°F – 140°F

The WATTS 1/2 800M4-QT is a pressure vacuum breaker designed for water media in high health hazard applications. This unit features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

SKU 3G-OTH-430701

Brand
Watts
Item
Vacuum Breaker: 1/2 800M4-QT, FNPT x FNPT, For Water Media, 33°F – 140°F
Category
Pressure Vacuum Breakers
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Technical Specifications

Watts
Manufacturer Part Number
1/2 800M4-QT
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 1/2 800M4-QT is a pressure vacuum breaker designed for water media in high health hazard applications. This unit features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

Frequently Asked Questions

What is the WATTS 1/2 800M4-QT pressure vacuum breaker used for?

The WATTS 1/2 800M4-QT pressure vacuum breaker prevents backflow of contaminated water into potable supplies in high health hazard applications. It is used in commercial and industrial water systems where cross-connection control is critical, such as irrigation, boiler feed, and process lines.

What are the specifications of the WATTS 1/2 800M4-QT?

The WATTS 1/2 800M4-QT has FNPT x FNPT connections, operates with water media from 33°F to 140°F, and is rated for high health hazard protection. The manufacturer part number is 1/2 800M4-QT. It is a pressure vacuum breaker designed for backflow prevention in demanding environments.

Where to buy the WATTS 1/2 800M4-QT worldwide?

3G Electric supplies the WATTS 1/2 800M4-QT pressure vacuum breaker to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this high health hazard backflow prevention device.

How to install a WATTS pressure vacuum breaker?

Install the WATTS pressure vacuum breaker in an accessible, vertical position with the inlet below the outlet. Ensure the unit is protected from freezing and debris. Follow local plumbing codes and the manufacturer's instructions for proper support and testing. Always verify flow direction and pressure ratings before commissioning.

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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