Carbon Steel Flanged Gate Valve DN200 Price for Petrochemical Engineering
With robust WCB carbon steel construction and flanged end connections, these valves provide reliable shut-off performance in demanding applications involving water, oil, steam, and various process media . This article provides essential pricing information and key selection parameters for DN200 carbon steel flanged gate valves for petrochemical service.The main gate valve product names of China gate valve Network include:API Electric Lug&wafer Knife-shaped Gate Valve,API Bevel Gear Lug&wafer Knife-shaped Gate Valve,API Pneumatic Lug&wafer Knife-shaped Gate Valve,API Cryogenic Gate Valve,SCZ Series Flashboard Valve,Slab Gate Valve,Scum Flange Gate Valve,Stainless Steel Flange Gate Valve.
Price Reference for DN200 Carbon Steel Flanged Gate Valve
Prices for DN200 carbon steel flanged gate valves vary based on pressure rating, actuation type, and design features. Below are current market reference points:
Manual gate valves (Z41H-16C): Available from approximately 750 to 2,590 CNY for PN16 configurations, depending on manufacturer and specification .
Electric actuated gate valves (Z941H-16C): Priced at approximately 280 to 800 CNY for DN200 configurations, with higher pressure ratings commanding premium pricing .
Pneumatic actuated gate valves (Z641H-64C): Available from approximately 890 CNY for PN64 (6.4MPa) configurations .
High pressure Class 1500 configurations: Prices range significantly higher, reflecting the enhanced material specifications and design requirements for high-pressure petrochemical service .
Key factors affecting price include pressure rating (PN16 to PN64 or Class 150 to 1500), actuation type (manual, electric, pneumatic), trim material, and certification requirements such as NACE MR0175 for sour gas applications .
Technical Specifications for Petrochemical Service
DN200 carbon steel gate valves for petrochemical engineering must meet rigorous performance standards. Valve bodies are typically manufactured from ASTM A216 WCB carbon steel, providing good strength and economical cost for medium to high pressure service .
Pressure and Temperature: Available in PN16 to PN64 (1.6MPa to 6.4MPa) or Class 150 to 1500 ratings, with temperature capability up to 425°C for WCB material . Higher temperature service may require alloy steel grades.
Design Features: Valves typically feature rising stem (OS&Y) design for visual position indication, flexible wedge construction to accommodate thermal expansion, and hardfaced Stellite 6 sealing surfaces for wear resistance and reliable shut-off .
Connections: Flanged ends per ASME B16.5 or GB/T 9113 standards, with RF (raised face) being the most common configuration .
Standards: API 600 for design and manufacturing, API 598 for pressure testing, and ASME B16.34 for pressure-temperature ratings .
Petrochemical Applications
DN200 carbon steel flange gate valves serve critical functions in petrochemical plants, oil and gas pipelines, refining process lines, power generation facilities, and chemical processing systems handling water, steam, oil, gas, and various hydrocarbons .
Summary
DN200 carbon steel flanged gate valves are essential for reliable isolation in petrochemical engineering, with prices ranging from approximately 280 CNY for basic electric configurations to over 2,590 CNY for premium manual models. WCB carbon steel construction provides the strength and temperature capability necessary for demanding petrochemical service. Selection requires careful evaluation of pressure rating, actuation type, and material compatibility. Consulting with qualified manufacturers who provide certified material test reports and performance documentation is strongly recommended for critical petrochemical applications.
Do you still need to know or purchase the following gate valve products:
