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Watts Test Cock: Test Cock, 1/2 in Connection Size - Side 1, NPT, Repair Part - Repair Kits & Parts for Watts Backflow Preventers
WattsRepair Kits & Parts for Watts Backflow Preventers

Watts Test Cock: Test Cock, 1/2 in Connection Size - Side 1, NPT, Repair Part

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
Test Cock: Test Cock, 1/2 in Connection Size - Side 1, NPT, Repair Part
Category
Repair Kits & Parts for Watts Backflow Preventers
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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
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 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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