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

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

The WATTS 1 1/2 800M4-QT is a pressure vacuum breaker designed for water media, featuring FNPT x FNPT connections. It operates within a temperature range of 33°F to 140°F and is rated for high health hazard…

SKU 3G-OTH-430699

Brand
Watts
Item
Vacuum Breaker: 1 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
1-1/2 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 1/2 800M4-QT is a pressure vacuum breaker designed for water media, featuring FNPT x FNPT connections. It operates within a temperature range of 33°F to 140°F and is rated for high health hazard applications. This model is identified by manufacturer part number 1-1/2 800M4-QT.

Frequently Asked Questions

What is a Watts 1 1/2 800M4-QT pressure vacuum breaker used for?

The Watts 1 1/2 800M4-QT is a pressure vacuum breaker used to prevent backflow of contaminated water into potable water systems. It is designed for high health hazard applications, such as industrial process lines and irrigation systems, where water media must be protected from cross-connections.

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

The Watts 1 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 applications. The manufacturer part number is 1-1/2 800M4-QT. It is a pressure vacuum breaker designed for reliable backflow prevention.

Where to buy a Watts 1 1/2 800M4-QT worldwide?

3G Electric supplies the Watts 1 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 preventer.

How to install a Watts 1 1/2 800M4-QT pressure vacuum breaker?

Install the Watts 1 1/2 800M4-QT in an accessible location above the highest downstream outlet to ensure proper drainage. Use thread sealant on FNPT connections and test for leaks after installation. Follow local plumbing codes and the manufacturer's instructions for high health hazard 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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