Motorized Globe Valve

Motorized globe valve is an automated valve that controls the flow of fluid by driving the valve stem up and down through an electric actuator. Its core components include the valve body, valve disc, valve seat and electric drive unit, which are suitable for accurately cutting off or regulating pipeline media.

‌1. International production standards and testing requirements ‌ ‌

Design and manufacturing standards ‌ ‌

American Standard (API/ASME): The valve body design and pressure rating must comply with ASME B16.34, and the electric actuator must comply with API 609 standard (for valve drive devices); ‌

Material specifications ‌ ‌: The valve body material must meet ASTM standards (such as A216 WCB carbon steel, A351 CF8M stainless steel), and the sealing surface must be welded with hard alloy (such as Stellite 6) to improve high temperature resistance.
‌Performance testing requirements‌

‌Sealing test‌: Perform high-pressure air tightness test according to API 598 standard, and the leakage rate must be ≤0.01%×DN (mm/min); ‌

Pressure resistance and life test‌: Must pass the cyclic pressure test specified in ISO 5208 (such as 10,000 opening and closing times without leakage under PN100); ‌

Environmental adaptability‌: Valves used in nuclear power plants must meet IEEE 382 seismic resistance standards, and the oil and gas industry must pass NACE MR0175 hydrogen sulfide corrosion resistance certification.

 

Motorized Globe Valve

 

Applications
‌Energy and Power‌: Used in thermal power/nuclear power steam systems (temperature ≤550℃, pressure ≤PN160), controlling the emergency shutoff of the main steam pipeline; ‌

Petrochemical‌: Transporting sulfur-containing oil or corrosive media (such as weak acid, liquefied natural gas), suitable for Class 600LB high-pressure pipelines; ‌

Pharmaceuticals and Food‌: Aseptic-grade valves use 316L stainless steel valve bodies and PTFE seals, meeting FDA hygiene standards; ‌

Water Treatment and Metallurgy‌: Control cooling water circulation and high-temperature molten salt flow, and withstand flushing of particle-containing media.

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