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Watts Double Check Valve Assembly: 757, 6 in Pipe Size, Flange x Flange, 43.5 in Overall Lg - Watts Double Check Backflow Preventers
WattsWatts Double Check Backflow Preventers

Watts Double Check Valve Assembly: 757, 6 in Pipe Size, Flange x Flange, 43.5 in Overall Lg

The Watts 757 Double Check Valve Assembly is a backflow preventer with a 6-inch pipe size and flange x flange connections. It features an OSY gate valve shut-off type and has an overall length of 43.5 inches, with a…

SKU 3G-OTH-434590

Also listed as: 757OSY6 · 757-OSY-6

Brand
Watts
Item
Double Check Valve Assembly: 757, 6 in Pipe Size, Flange x Flange, 43.5 in Overall Lg
Category
Watts Double Check Backflow Preventers
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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
757 OSY 6
Type
Flange x Flange, Plastic
Overall Lg
43.5 in
Pipe Size
6 in
Connection Type
Flange x Flange
Shut-Off Valve Type
OSY Gate Valve

Technical Documents

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

Product Description

The Watts 757 Double Check Valve Assembly is a backflow preventer with a 6-inch pipe size and flange x flange connections. It features an OSY gate valve shut-off type and has an overall length of 43.5 inches, with a plastic construction.

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 757 Double Check Valve Assembly used for?

The Watts 757 Double Check Valve Assembly prevents backflow of non-potable water into potable water supplies in commercial and industrial plumbing systems. It is commonly installed in fire sprinkler, irrigation, and process water lines where a high-hazard backflow condition does not exist.

What are the specifications of the Watts 757 Double Check Valve Assembly?

The Watts 757 has a 6-inch pipe size with flange x flange connections and an OSY gate valve shut-off type. Overall length is 43.5 inches, and the body is plastic. The manufacturer part number is 757 OSY 6. It is a double check backflow preventer assembly.

Where to buy the Watts 757 Double Check Valve Assembly worldwide?

3G Electric supplies the Watts 757 Double Check Valve Assembly worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this backflow preventer.

How to install a Watts 757 Double Check Valve Assembly?

Install the Watts 757 in a horizontal or vertical position with the flow arrow pointing downstream. Ensure flange gaskets are properly seated and bolts are torqued evenly. Provide adequate clearance for servicing the OSY gate valve and test cocks. Always follow local plumbing codes.

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 watts double check 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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Cross-referenced by specification & description
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