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Watts Flow Check Valve: Iron, 1 1/4 in Pipe Size, 1 1/4 in FNPT, FNPT, 1 1/4 in FNPT - Hydronic Flow Check Valves
WattsHydronic Flow Check Valves

Watts Flow Check Valve: Iron, 1 1/4 in Pipe Size, 1 1/4 in FNPT, FNPT, 1 1/4 in FNPT

The WATTS Flow Check Valve is an iron hydronic flow check valve with a 1 1/4 in pipe size and 1 1/4 in FNPT female connections (MPN 2000 1-1/4"). 3G Electric interprets customer demand and delivers this genuine…

SKU 3G-OTH-67995

Brand
Watts
Item
Flow Check Valve: Iron, 1 1/4 in Pipe Size, 1 1/4 in FNPT, FNPT, 1 1/4 in FNPT
Category
Hydronic Flow Check Valves
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Technical Specifications

Watts
Manufacturer Part Number
2000 1-1/4"
Type
FNPT, FNPT, Female
Pipe Size
1 1/4 in
FNPT
1 1/4 in
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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Flow Check Valve is an iron hydronic flow check valve with a 1 1/4 in pipe size and 1 1/4 in FNPT female connections (MPN 2000 1-1/4"). 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments — with specialist depth in pumps and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is a Watts flow check valve used for?

A Watts flow check valve prevents reverse flow in hydronic heating and cooling systems. It is commonly installed on boiler loops, zone circuits, and solar thermal systems to ensure water flows in one direction only, protecting pumps and maintaining system efficiency.

What are the specifications of the Watts 2000 1-1/4" flow check valve?

The Watts 2000 1-1/4" flow check valve is made of iron with 1-1/4 inch FNPT connections on both ends. It is designed for hydronic systems and carries the manufacturer part number 2000 1-1/4". The valve body is female threaded for easy installation.

Where to buy Watts flow check valves worldwide?

3G Electric supplies Watts flow check valves worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the Watts 2000 1-1/4" model.

How to install a Watts flow check valve?

Install the Watts flow check valve in the direction of flow indicated by the arrow on the body. Use pipe thread sealant on the FNPT connections and tighten to manufacturer torque specs. Ensure the valve is accessible for future maintenance and inspection.

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 hydronic flow check valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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