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Watts 800M4-FR Freeze-Resistant Pressure Vacuum Breaker - Pressure Vacuum Breakers
WattsPressure Vacuum Breakers

Watts 800M4-FR Freeze-Resistant Pressure Vacuum Breaker

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-430703

Also listed as: 800M4FR · 800M4 FR

Brand
Watts
Item
800M4-FR Freeze-Resistant Pressure Vacuum Breaker
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

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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. 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 freeze-resistant pressure vacuum breaker designed to protect potable water systems from backflow in cold climates. It is suitable for water media and operates between 33°F and 140°F, making it ideal for outdoor or unheated installations.

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

The WATTS 800M4-FR has FNPT x FNPT connections, a bronze body, and a temperature range of 33°F to 140°F. It is designed for water media and carries manufacturer part number 800M4-FR. This freeze-resistant model prevents damage from ice formation in backflow prevention assemblies.

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 us for pricing and lead time on this bronze FNPT x FNPT backflow prevention device.

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

Install the WATTS 800M4-FR in a vertical position with the vent facing downward to allow proper drainage. Ensure the supply line is flushed before installation. Follow local plumbing codes and the manufacturer's instructions for freeze-resistant backflow preventers to maintain reliable operation between 33°F and 140°F.

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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