2″ Threaded Gate Valve Brass BSPT NPT Manual 200 WOG

2"  Threaded Gate Valve Brass BSPT NPT Manual 200 WOG

A 2″ threaded gate valve is a shut-off valve that operates by rotating a handwheel to raise or lower a gate, thereby opening or closing the pipeline. Its threaded connection makes installation straightforward, particularly suitable for piping systems with limited space or where frequent disassembly is not required. This valve is widely used in transmission lines for media such as water, oil, and steam due to its reliable shut-off capability.

Material and Pressure Considerations for Choosing a 2″ Threaded Gate Valve
The valve body is primarily cast from bronze or brass, materials known for their good corrosion resistance and machinability. The standard pressure rating is typically 200 WOG (Water, Oil, Gas) or PN16/PN20, corresponding to a maximum working pressure of approximately 20 bar, which meets the requirements of most common industrial applications.

Connection and Operation Method of the 2″ Threaded Gate Valve
This valve uses a female threaded connection. Common thread standards include BSPT (British Standard Pipe Taper) and NPT (National Pipe Taper). Buyers must confirm the piping interface standard to ensure compatibility. The drive method is standard manual operation, controlled by rotating a handwheel. Some designs feature a non-rising stem (inside screw), meaning the handwheel position remains fixed while only the internal stem rotates, saving vertical installation space.

Key Features and Parameters of the 2″ Threaded Gate Valve
This type of valve has a robust construction and low fluid resistance. When fully open, the gate is completely raised, providing an unobstructed flow path with minimal pressure loss. It operates effectively across a broad temperature range; for example, a brass valve body can typically handle environments from -20℃ to 120℃. The main technical parameters are summarized below:

• A: Yes, but it must have the appropriate certifications. Bronze or brass valves used for potable water must comply with local drinking water safety standards (e.g., NSF/ANSI 61 in the USA, WRAS in the UK) to ensure the leaching of impurities like lead remains within safe limits. Be sure to request the relevant compliance certificates when purchasing.

Q: What does the "200 WOG" pressure rating marked on the valve specifically mean?

• A: "200 WOG" is a common American standard designation indicating that the valve's maximum allowable working pressure is 200 PSI for media at ambient temperature. It comprehensively represents the valve's pressure-bearing capability for several common media.

Q: What other key details should be confirmed when purchasing a 2″ threaded gate valve, besides size and pressure?

• A: (e.g., BSPT or NPT); and third, the (rising or non-rising), as this affects the required vertical installation space.

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