Category:
Other API Machinery and Equipment
An industrial butterfly valve is a quarter-turn rotary flow control device designed for throttling or isolating fluid streams. Manufactured to standards like API 609, it typically features a disc mounted on a rotating shaft within a wafer or lug body, utilizing materials such as stainless steel, carbon steel, or high-grade polymers for the seat and disc.
Ensure proper torque alignment during installation to prevent flange stress. Avoid exceeding rated pressure-temperature limits to prevent seat deformation. Implement periodic lubrication of the stem and inspect the sealing surface for wear every six months to maintain leak-tight performance.