This type of valve is typically made of a bronze body with a cast handwheel.
- It is often used for regulating duties due to its design, which may feature a needle disc.
- The valve usually has screwed connections, such as BSPP, and is rated for specific pressures and temperatures, often around PN25 or PN32.
- Markings on the body, such as “25MM” and “500”, indicate specifications like size and potential pressure ratings.



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