WALWORTH 200W0G Plug Valve T266636

( Brand: Walworth ), ( Manufacturer Part Number: 200W0G ), ( Part Type: Valve Plug )

Review WALWORTH Plug Valve

The **Walworth 200W0G Plug Valve (T266636)** is a robust and versatile **brass-plug gate valve** designed for reliable fluid control in both residential and light commercial plumbing systems. Constructed from **yellow brass (alloy 410)**, this valve offers excellent corrosion resistance and durability, making it ideal for applications involving water, steam, or low-pressure gas lines. The **full-port design** ensures minimal pressure drop and optimal flow efficiency, while the **threaded brass body** provides a secure, leak-proof connection when properly installed. Featuring a **standard T266636 configuration**, this valve includes a **handwheel with a 1.5-inch (38mm) diameter**, allowing for easy manual operation with a single hand, even in tight spaces. The **smooth, wax-coated internal plug mechanism** reduces friction and wear, ensuring long-lasting performance and trouble-free operation over time. Suitable for **hot and cold water systems**, as well as **steam lines up to 250 F (121 C)**, this valve is rated for **working pressures up to 200 PSI**, making it a dependable choice for both new installations and repairs. Its **standard NPT (National Pipe Thread) connections** ensure compatibility with a wide range of plumbing fixtures, fittings, and piping systems, while the **soldered or threaded end options** provide flexibility in installation methods. Whether used in **under-sink setups, radiator valves, or boiler systems**, the Walworth 200W0G delivers consistent performance with minimal maintenance, reinforcing its reputation as a dependable workhorse in plumbing applications.

### **Pros and Cons of buying a Walworth 200W0G Plug Valve (T266636)**

1. **Durability and Build Quality** Walworth is a well-known brand in plumbing, and this valve is designed for heavy-duty use. It is typically made from brass, which is resistant to corrosion and can withstand high water pressure, making it suitable for both residential and light commercial applications.

2. **Compatibility** The **200W0G** model is a standard **1/2-inch NPT (National Pipe Thread)** plug valve, meaning it fits common plumbing systems in the UK and other regions using similar thread standards. It is often used in water supply lines, gas lines (if approved for use), and general utility applications.

3. **Easy Installation** The valve features a **screw-in design**, allowing for straightforward installation without requiring soldering or special tools (though a wrench may be needed for tightening). The threaded connections reduce the risk of leaks if installed correctly.

4. **Manual Operation** Being a **manual plug valve**, it is simple to operate just turn the handle to open or close the flow. No electricity or power source is required, making it reliable in case of power failures.

5. **Cost-Effective** Compared to some high-end or automated valves, this is a reasonably priced option for basic on/off control in plumbing systems. It provides a balance between affordability and functionality.

6. **Wide Availability** As a standard Walworth product, it is easy to find in plumbing supply stores, both online and offline, and spare parts (such as gaskets or handles) are commonly available.

- Water supply lines (cold/hot)

- Gas lines (if certified for gas use check product specifications)

- Drainage systems (where applicable)

- Utility connections in workshops or garages

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1. **No Pressure Relief or Regulation** This is a **simple on/off valve**, meaning it does not regulate water pressure. If high pressure is present in the system, it may cause excessive wear or potential leaks over time.

2. **Manual Operation Requires Physical Effort** For larger pipe sizes or high-pressure systems, turning the handle can be difficult, especially if the valve is partially stuck or corroded. This may require additional tools or force.

3. **Potential for Leaks Over Time** Like all threaded valves, the **gasket or sealing washer** can wear out, leading to leaks. Regular maintenance (e.g., tightening or replacing the gasket) may be necessary.

4. **Limited Flow Control** Unlike a **ball valve or globe valve**, this plug valve does not allow for fine-tuning of flow rates it is either fully open or fully closed.

5. **Not Ideal for High-Temperature Applications** While brass can handle moderate temperatures, prolonged exposure to **very high temperatures** (e.g., steam lines) may degrade the valve s performance or sealing.

6. **Thread Compatibility Issues** If the connecting pipes do not match the **1/2-inch NPT** size, adapters may be required, adding complexity to installation. Improper threading can also lead to leaks.

7. **No Built-In Safety Features** Unlike some modern valves, this does not include features such as **pressure relief** or **anti-siphon mechanisms**, which may be necessary in certain applications.

8. **Potential for Corrosion** While brass is generally corrosion-resistant, if the valve is exposed to **saltwater, acidic water, or poor-quality water**, corrosion can occur over time, affecting functionality.

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### **Conclusion**

The **Walworth 200W0G Plug Valve (T266636)** is a **reliable, durable, and cost-effective** choice for basic on/off control in plumbing systems where **1/2-inch NPT threading** is standard. It excels in **simplicity, ease of installation, and long-term performance** for general water supply or utility applications. However, it is **not suitable** for applications requiring **pressure regulation, fine flow control, or extreme temperature resistance**.

If you need a **simple, no-frills valve** for a **residential water supply line, gas line (if approved), or basic utility connection**, this valve is a solid option. For **high-pressure, high-temperature, or industrial applications**, a more specialized valve (e.g., a **ball valve, globe valve, or pressure-reducing valve**) may be necessary.

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### **Recommendation**

You need a **basic, manual on/off valve** for a **1/2-inch NPT water supply line**.

You require a **durable, brass-constructed valve** for **residential or light commercial use**.

You prefer a **simple, no-maintenance (short-term) solution** for general plumbing needs.

You can **regularly check for leaks** and **tighten the valve** as needed.

You need **pressure regulation or fine flow control** (consider a **ball valve or globe valve** instead).

The application involves **high-pressure or high-temperature conditions** (e.g., steam, boiler systems).

You require **automated or remote-controlled operation** (e.g., solenoid valves).

The valve will be exposed to **corrosive substances** (e.g., seawater, chemicals) without proper protection.

- For **better flow control**, a **1/2-inch ball valve** (e.g., Walworth 200W0B) may be preferable.

- For **gas applications**, ensure the valve is **certified for gas use** (check for **BS EN 12164 or similar standards**).

- If leaks are a concern, consider **Teflon tape or pipe thread sealant** during installation.

Overall, this valve is a **practical choice for basic plumbing needs** but should not be relied upon for specialized or high-demand applications.

Details:

Extra Information. CDMH0409E1OMRA00000 VMH 4 20051796DB A126. Reference Number:T266636. We proudly sell hard-to-find parts, components, and machines to makers manufacturers.

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part #: 200w0g price

• $249.99

specifications valvesplumbing:

• brand: Walworth
• mpn: 200w0g
• part type: Valve Plug

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• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
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• city: El Paso, Texas
• rating: 99.7%
• # reviews: 21739

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• started: April 3, 2026
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