api 6d globe valve Description
API 6D globe valve is a forced seal stop valve designed, manufactured and inspected according to the API 6D standard formulated by the American Petroleum Institute (API). It is specially used in pipeline systems with high-pressure and high-risk media such as oil and natural gas to ensure safety and reliability under harsh working conditions. Its core specifications include:
Design standard: Follow API 6D and API 602 (supplementary standard for small-diameter valves);
Test standard: Carry out sealing and strength tests according to API 598;
Connection standard: Flange size matches ANSI B16.5, and structural length complies with ANSI B16.10.
Core functions and technical features
Core functions
Media on-off: Cut off or connect pipeline media through the forced sealing structure of the valve disc and the valve seat, suitable for liquids, gases and steam;
High pressure adaptability: Supports nominal pressure of 150LB~1500LB (some models reach 2500LB), suitable for long-distance oil and gas pipelines and refining units.
Technical Features
Material: The valve body is mostly made of forged steel or stainless steel (such as 304/316L), which is resistant to high temperature and corrosion;
Sealing Design: Overlaying of carbide sealing surface (such as Stellite alloy) to improve wear resistance and high temperature sealing performance;
Drive Mode: Supports manual (handwheel/gearbox) or electric actuator to meet the needs of automated control.
api 6d globe valve specification
Size : DN15--400mm
Pressure : PN10-64, 125-900LB
Medium : Water, Air, Gas, etc
Temperature : -29~+450 C
Material: Cast iron, Carbon steel, Stainless steel
Design:ASME B16.34; DIN 3356; BS1873
Inspection&Testing: API 598/API 6D; DIN 3230; BS5146
Face to Face:ASME B16.10; DIN 3202; BS2080;
api 6d globe valve
Selection and maintenance points
Selection recommendations
High-pressure scenarios: Forged steel valve body + carbide sealing surface models (such as J41W series) are preferred;
Corrosive media: Stainless steel material + bellows sealing structure (such as J941H series) are used.
Maintenance specifications
Periodic calibration: Perform sealing test every 6 months (in accordance with API 598 standard);
Operation specifications: Avoid excessive forced closure that may cause deformation of the valve stem, and add lubrication when necessary.
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