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Watts 4" Cast Iron OS&Y Gate Valve, Wheel, MPN OSY-RW-Gate 4" - Cast Iron Outside Stem & Yoke (OS&Y) General Purpose Gate Valves
WattsCast Iron Outside Stem & Yoke (OS&Y) General Purpose Gate Valves

Watts 4" Cast Iron OS&Y Gate Valve, Wheel, MPN OSY-RW-Gate 4"

The WATTS Gate Valve is a 4-inch nominal size Cast Iron Outside Stem & Yoke (OS&Y) General Purpose Gate Valve, identified by MPN OSY-RW-Gate 4". It features a cast iron wedge and bonnet, and is operated via a wheel…

SKU 3G-OTH-448964

Also listed as: OSYRWGate4 · OSY RW Gate 4 · OSY-RW-Gate-4

Brand
Watts
Item
4" Cast Iron OS&Y Gate Valve, Wheel, MPN OSY-RW-Gate 4"
Part Number
OSY-RW-Gate 4"
Category
Cast Iron Outside Stem & Yoke (OS&Y) General Purpose Gate Valves
Available to Order
Also known as:OSY-RW-Gate 4"Watts
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
OSY-RW-Gate 4"
Type
Cast Iron, Outside Screw and Yoke (OS&Y), Wheel
Wedge Material
Cast Iron
Bonnet Material
Cast Iron

Technical Documents

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

Product Description

The WATTS Gate Valve is a 4-inch nominal size Cast Iron Outside Stem & Yoke (OS&Y) General Purpose Gate Valve, identified by MPN OSY-RW-Gate 4". It features a cast iron wedge and bonnet, and is operated via a wheel. This valve is designed for general-purpose flow control applications.

Frequently Asked Questions

What is a WATTS OS&Y gate valve used for?

A WATTS OS&Y gate valve is used for general-purpose on/off flow control in industrial piping systems. Its outside screw and yoke design visually indicates valve position, making it suitable for water, oil, and gas applications where reliable shut-off is required.

What are the specifications of the WATTS 4-inch gate valve?

The WATTS gate valve has a 4-inch nominal size, cast iron body, wedge, and bonnet, with an outside screw and yoke (OS&Y) and wheel operator. The manufacturer part number is OSY-RW-Gate 4". It is designed for general-purpose flow control.

Where to buy a WATTS OS&Y gate valve worldwide?

3G Electric supplies the WATTS OS&Y gate valve worldwide, handling full logistics and customs clearance for international delivery. As a global industrial solutions provider, we source and deliver genuine WATTS valves to support your project requirements anywhere.

How to install a WATTS cast iron gate valve?

Install the WATTS gate valve in the fully open position, ensuring proper pipe alignment to avoid stress on the cast iron body. Use compatible flanges or threaded connections per system specifications. Always follow standard piping practices for OS&Y valves to ensure reliable 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 cast iron outside stem & yoke (os&y) general purpose gate valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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