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Watts 1-1/2 LF800M4-QT Lead-Free Pressure Vacuum Breaker - Lead-Free Pressure Vacuum Breakers
WattsLead-Free Pressure Vacuum Breakers

Watts 1-1/2 LF800M4-QT Lead-Free Pressure Vacuum Breaker

The WATTS 1 1/2 LF800M4-QT is a lead-free pressure vacuum breaker designed for back-siphonage prevention in water media. This unit features FNPT x FNPT connections and is rated for operating temperatures from 33°F to…

SKU 3G-OTH-446168

Also listed as: 112LF800M4QT · 1 1 2 LF800M4 QT · 1-1-2-LF800M4-QT

Brand
Watts
Item
1-1/2 LF800M4-QT Lead-Free Pressure Vacuum Breaker
Part Number
1-1/2 LF800M4-QT
Category
Lead-Free Pressure Vacuum Breakers
Available to Order
Also known as:1-1/2 LF800M4-QTWatts
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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
1-1/2 LF800M4-QT
Type
FNPT x FNPT, For Water Media, 33°F – 140°F, Back-Siphonage
Connection Type
FNPT x FNPT

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS 1 1/2 LF800M4-QT is a lead-free pressure vacuum breaker designed for back-siphonage prevention in water media. This unit features FNPT x FNPT connections and is rated for operating temperatures from 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 1 1/2 LF800M4-QT vacuum breaker used for?

The WATTS 1 1/2 LF800M4-QT is a lead-free pressure vacuum breaker used for back-siphonage prevention in water systems. It is commonly installed on irrigation, commercial, and industrial water lines to protect potable water supplies from contamination due to backflow.

What are the specifications of the WATTS LF800M4-QT?

The WATTS LF800M4-QT has FNPT x FNPT connections, a 1 1/2-inch size, and is rated for water media from 33°F to 140°F. It is a lead-free pressure vacuum breaker designed for back-siphonage prevention. The manufacturer part number is 1-1/2 LF800M4-QT.

Where to buy the WATTS LF800M4-QT worldwide?

You can source the WATTS LF800M4-QT through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this lead-free pressure vacuum breaker.

How to install a WATTS pressure vacuum breaker?

Install the WATTS pressure vacuum breaker in an accessible, vertical position above the highest downstream outlet. Ensure the FNPT connections are properly sealed with thread tape. Follow local plumbing codes and the manufacturer's instructions for back-siphonage prevention devices to ensure correct operation.

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 lead-free 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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