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Watts 800M4-FR Freeze-Resistant Pressure Vacuum Breaker, FNPT x FNPT, Bronze - Pressure Vacuum Breakers
WattsPressure Vacuum Breakers

Watts 800M4-FR Freeze-Resistant Pressure Vacuum Breaker, FNPT x FNPT, Bronze

The WATTS 800M4-FR is a freeze-resistant pressure vacuum breaker designed for water media. This bronze unit features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

SKU 3G-OTH-430697

Also listed as: 800M4FR · 800M4 FR

Brand
Watts
Item
800M4-FR Freeze-Resistant Pressure Vacuum Breaker, FNPT x FNPT, Bronze
Part Number
800M4-FR
Category
Pressure Vacuum Breakers
Available to Order
Also known as:800M4-FRWatts
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

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

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS 800M4-FR is a freeze-resistant pressure vacuum breaker designed for water media. This bronze unit features FNPT x FNPT connections and operates within a temperature range of 33°F to 140°F.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

The WATTS 800M4-FR is a pressure vacuum breaker designed to prevent backflow in water systems while resisting freeze damage. It is commonly installed on outdoor irrigation or commercial water lines where temperatures drop, protecting potable water supplies from contamination.

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

The WATTS 800M4-FR has FNPT x FNPT connections, is made of bronze, and operates in water media from 33°F to 140°F. It is a freeze-resistant pressure vacuum breaker, model 800M4-FR, suitable for cold-weather 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, ensuring you receive the correct bronze FNPT x FNPT backflow preventer for your water system requirements.

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

Install the WATTS 800M4-FR in a vertical position above the highest downstream outlet, with the FNPT connections properly sealed. Ensure the unit is protected from freezing by its design, but follow local plumbing codes and manufacturer guidelines for safe backflow prevention.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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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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