API 623 Globe Valve

API 623 globe valve is a steel stop valve designed in accordance with the American Petroleum Institute (API) standard. It is designed for industrial pipeline systems and is used to cut off and regulate high-temperature and high-pressure fluids (such as steam, oil and gas, etc.). Its core standard is "Steel Stop Valve-Flanged End and Butt-Weld End, Bolted Bonnet" (API 623-2013).

Core Standards and Specifications
‌Scope of Application

‌Connection form‌: flange end (ASME B16.5) or butt-weld end (ASME B16.25);
‌Diameter and pressure‌: diameter 2"~24", pressure level 150LB~2500LB (Class 150~Class 2500).
‌Design and manufacturing requirements‌

‌Structural length‌: in accordance with ASME B16.10 standard; ‌Valve body and bonnet‌: bolted bonnet design (Class 150~Class 600); ‌Sealing performance‌: valve disc and valve seat are forced to seal, and the sealing surface can be flat or conical structure, suitable for high temperature and high pressure conditions.

Structural features and advantages
‌Key design improvements‌
‌Seat inner diameter optimization‌: Compared with the old version of BS 1873 standard, API 623 reduces the inner diameter of the valve seat (for example, the inner diameter is reduced from 152mm to 135mm under 6"-600LB working conditions), enhancing sealing reliability; ‌Valve stem reinforcement‌: increase the valve stem diameter (for example, the valve stem diameter under 6"-600LB working conditions is increased from 41.3mm to 48mm), improving the pressure resistance and anti-scouring capabilities.
‌Performance advantages‌

‌High sealing‌: Zero leakage can be achieved through forced sealing by valve stem pressure; ‌Versatility‌: Supports full open/full closed cutoff, and can also be used for flow regulation and throttling; ‌Corrosion resistance‌: The valve body and internal parts can be made of alloy steel, stainless steel, etc., suitable for corrosive media.

 

API 623 globe valve

 

Application specifications and adaptation scenarios
‌Applicable industries‌

High-pressure steam or oil and gas pipeline systems such as petrochemical, power, and energy;
Industrial scenarios that require frequent opening and closing or precise flow regulation.
‌Supporting standards‌

‌Design and manufacturing‌: API 623, BS 1873 (old version), ASME B16.34 (temperature and pressure grade); ‌Testing and inspection‌: API 598 (valve pressure test).

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