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Watts 1/2 LF-TC 757/957 2-1/2 - 4 Test Cock, 1/2 in NPT, Bronze - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts 1/2 LF-TC 757/957 2-1/2 - 4 Test Cock, 1/2 in NPT, Bronze

The Watts Test Cock (MPN 1/2 LF-TC 757/957 2-1/2 - 4) is a 1/2 in NPT bronze repair part for Watts backflow preventers. It is compatible with the Watts Series LF-TC and features a 1/2 in connection size on Side 1.

SKU 3G-OTH-436748

Also listed as: 12LFTC7579572124 · 1 2 LF TC 757 957 2 1 2 4 · 1-2-LF-TC-757-957-2-1-2-4

Brand
Watts
Item
1/2 LF-TC 757/957 2-1/2 - 4 Test Cock, 1/2 in NPT, Bronze
Part Number
1/2 LF-TC 757/957 2-1/2 - 4
Category
Repair Kits & Parts for Watts Backflow Preventers
Available to Order
Also known as:1/2 LF-TC 757/957 2-1/2 - 4Watts
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Technical Specifications

Watts
Manufacturer Part Number
1/2 LF-TC 757/957 2-1/2 - 4
Type
1/2 in Connection Size - Side 1, NPT, Repair Part, Bronze
Compatible with Series
Watts Series LF-TC, 1/2 in

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts Test Cock (MPN 1/2 LF-TC 757/957 2-1/2 - 4) is a 1/2 in NPT bronze repair part for Watts backflow preventers. It is compatible with the Watts Series LF-TC and features a 1/2 in connection size on Side 1.

Frequently Asked Questions

What is the Watts test cock used for?

The Watts test cock is a repair part used on Watts Series LF-TC backflow preventers. It allows technicians to attach test equipment to verify that the preventer is operating correctly, ensuring cross-connection control and backflow protection in commercial and industrial water systems.

What are the specifications of the Watts 1/2 LF-TC test cock?

This Watts test cock has a 1/2-inch NPT connection size on side 1, is made of bronze, and is compatible with Watts Series LF-TC backflow preventers. The manufacturer part number is 1/2 LF-TC 757/957 2-1/2 - 4. It is designed as a repair part for backflow prevention assemblies.

Where to buy Watts test cock worldwide?

3G Electric supplies the Watts test cock worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this genuine Watts repair part to any country.

How to install a Watts test cock on a backflow preventer?

Install the Watts test cock by threading it into the test port of the compatible Watts Series LF-TC backflow preventer using a wrench. Apply thread sealant to the NPT threads to prevent leaks. Always depressurize the system before installation and follow local plumbing codes for backflow prevention maintenance.

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 repair kits & parts for watts backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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