{"id":1100,"date":"2026-09-22T06:17:57","date_gmt":"2026-09-22T06:17:57","guid":{"rendered":"https:\/\/wdlvalve.com\/?p=1100"},"modified":"2026-09-22T06:34:20","modified_gmt":"2026-09-22T06:34:20","slug":"%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%aa%e0%b8%b3%e0%b8%ab%e0%b8%a3%e0%b8%b1%e0%b8%9a%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%ab%e0%b8%a5%e0%b8%ad%e0%b8%a1%e0%b9%83%e0%b8%99%e0%b8%ad%e0%b8%b8","status":"publish","type":"post","link":"https:\/\/wdlvalve.com\/th\/%e0%b8%a7%e0%b8%b2%e0%b8%a5%e0%b9%8c%e0%b8%a7%e0%b8%aa%e0%b8%b3%e0%b8%ab%e0%b8%a3%e0%b8%b1%e0%b8%9a%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%ab%e0%b8%a5%e0%b8%ad%e0%b8%a1%e0%b9%83%e0%b8%99%e0%b8%ad%e0%b8%b8\/","title":{"rendered":"\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e2d\u0e38\u0e15\u0e2a\u0e32\u0e2b\u0e01\u0e23\u0e23\u0e21\u0e42\u0e25\u0e2b\u0e30\u0e27\u0e34\u0e17\u0e22\u0e32\u0e41\u0e25\u0e30\u0e01\u0e32\u0e23\u0e2b\u0e25\u0e2d\u0e21"},"content":{"rendered":"
\n
\n

Metallurgy and smelting valves control cooling water, fuel gas,
\noxygen, steam, slurry and high-temperature process media. WDL Valve
\nsupplies gate, globe, ball, butterfly, check and control valves for
\nisolation, flow regulation and equipment protection in steel mills,
\nfoundries and non-ferrous metal plants.<\/p>\n<\/header>\n

What Are Metallurgy and Smelting Valves?<\/span><\/p>\n

Metallurgy and smelting valves are industrial valves designed for
\nthe demanding conditions found in ironmaking, steelmaking, casting,
\nrolling and non-ferrous metal production. These processes may expose
\nvalves to high temperature, abrasive particles, corrosive liquids,
\nrapid cycling and large pressure changes.Valve type, body material, trim, seat design and actuator must be
\nselected according to the actual process medium. A valve suitable
\nfor cooling water may not be suitable for oxygen, fuel gas, steam
\nor abrasive slurry.<\/p>\n

An overview of blast-furnace and electric-arc-furnace production
\nroutes is available from the
\n
\nWorld Steel Association steelmaking process guide
\n<\/a>.<\/p>\n<\/section>\n

\n

Where Are Valves Used in Metallurgical Plants?<\/h2>\n

Valves are installed throughout raw-material handling, furnaces,
\ngas-treatment systems, cooling systems, casting equipment and
\nenvironmental-control systems.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
\u0e1e\u0e37\u0e49\u0e19\u0e17\u0e35\u0e48\u0e01\u0e23\u0e30\u0e1a\u0e27\u0e19\u0e01\u0e32\u0e23<\/th>\nTypical Medium<\/th>\n\u0e2b\u0e19\u0e49\u0e32\u0e17\u0e35\u0e48\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27<\/th>\n\u0e1b\u0e23\u0e30\u0e40\u0e20\u0e17\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e17\u0e35\u0e48\u0e19\u0e34\u0e22\u0e21\u0e43\u0e0a\u0e49<\/th>\n<\/tr>\n<\/thead>\n
Furnace cooling system<\/td>\nCooling water<\/td>\nIsolation, flow control and non-return protection<\/td>\nButterfly, gate, ball and check valves<\/td>\n<\/tr>\n
Fuel-gas system<\/td>\nNatural gas, coke-oven gas or mixed fuel gas<\/td>\nIsolation and combustion-flow regulation<\/td>\nBall, butterfly, gate and control valves<\/td>\n<\/tr>\n
Oxygen system<\/td>\nIndustrial oxygen<\/td>\nClean isolation and controlled flow<\/td>\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e41\u0e1a\u0e1a\u0e01\u0e25\u0e2d\u0e1a \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e41\u0e1a\u0e1a\u0e25\u0e39\u0e01\u0e1a\u0e2d\u0e25 \u0e41\u0e25\u0e30\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21<\/td>\n<\/tr>\n
Steam and utility system<\/td>\nSteam, condensate, air and water<\/td>\nIsolation, drainage and pressure control<\/td>\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e1b\u0e23\u0e30\u0e15\u0e39 \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e39\u0e01\u0e42\u0e25\u0e01 \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e0a\u0e47\u0e01 \u0e41\u0e25\u0e30\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21<\/td>\n<\/tr>\n
Slurry and residue system<\/td>\nScale, ash, slag slurry and process wastewater<\/td>\nAbrasive-media isolation and discharge<\/td>\nKnife gate, ball and discharge valves<\/td>\n<\/tr>\n
Dust and gas cleaning<\/td>\nDust-bearing gas and scrubbing water<\/td>\nIsolation and process regulation<\/td>\nButterfly, ball, gate and control valves<\/td>\n<\/tr>\n
Chemical-treatment system<\/td>\nAcids, alkalis and pickling solutions<\/td>\n\u0e23\u0e30\u0e1a\u0e1a\u0e41\u0e22\u0e01\u0e41\u0e25\u0e30\u0e08\u0e48\u0e32\u0e22\u0e2a\u0e32\u0e23\u0e17\u0e35\u0e48\u0e17\u0e19\u0e15\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e01\u0e31\u0e14\u0e01\u0e23\u0e48\u0e2d\u0e19<\/td>\nBall, diaphragm, butterfly and control valves<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
\n

Which Valve Types Are Used in Metallurgy and Smelting?<\/h2>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e1b\u0e23\u0e30\u0e15\u0e39<\/h3>\n

Gate valves provide a straight flow path and low pressure loss when
\nfully open. They are commonly used for cooling water, steam, fuel
\ngas and utility isolation. Standard gate valves are normally
\nintended for fully open or fully closed operation.<\/p>\n

View WDL Valve
\n
\nindustrial gate valve solutions
\n<\/a>.<\/p>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e41\u0e1a\u0e1a\u0e01\u0e25\u0e2d\u0e1a<\/h3>\n

Globe valves are suitable for manual flow adjustment, steam
\nisolation and process bypass lines. Trim material and seat design
\nshould match the temperature, pressure drop and cycling frequency.<\/p>\n

View WDL Valve
\n
\nindustrial globe valves
\n<\/a>.<\/p>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e39\u0e01\u0e1a\u0e2d\u0e25<\/h3>\n

Ball valves provide fast operation, low pressure loss and reliable
\nisolation. Metal-seated ball valves with hardfaced sealing surfaces
\nmay be selected for high temperature, abrasive particles or frequent
\ncycling.<\/p>\n

View WDL Valve
\n
\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e39\u0e01\u0e1a\u0e2d\u0e25\u0e41\u0e1a\u0e1a\u0e2d\u0e38\u0e15\u0e2a\u0e32\u0e2b\u0e01\u0e23\u0e23\u0e21
\n<\/a>.<\/p>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e1c\u0e35\u0e40\u0e2a\u0e37\u0e49\u0e2d<\/h3>\n

Butterfly valves are compact and suitable for large-diameter cooling
\nwater, gas and air pipelines. Triple-offset metal-seated designs may
\nbe considered for higher temperatures and demanding shutoff service.<\/p>\n

View WDL Valve
\n
\nbutterfly valve range
\n<\/a>.<\/p>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e01\u0e31\u0e19\u0e01\u0e25\u0e31\u0e1a<\/h3>\n

Check valves prevent reverse flow through cooling-water pumps,
\ncompressors and utility systems. Valve type and closing response
\nshould be selected according to flow velocity and system dynamics.<\/p>\n

View WDL Valve
\n
\nindustrial check valves
\n<\/a>.<\/p>\n

\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21<\/h3>\n

Control valves regulate gas, air, steam and cooling-water flow.
\nValve sizing should use the minimum, normal and maximum process
\nconditions. The trim must also be checked for noise, erosion,
\ncavitation and vibration.<\/p>\n<\/section>\n

\n

How Do Temperature and Abrasion Affect Valve Selection?<\/h2>\n

High temperature can reduce material strength, change seat clearances
\nand damage standard soft seals. High-temperature valves may require
\nmetal seats, graphite packing, suitable alloy materials and extended
\nbonnets or heat-dissipation structures.<\/p>\n

Abrasive scale, dust and slurry can wear balls, discs, gates, seats
\nand internal flow passages. Partially open valves may experience
\nconcentrated erosion because velocity increases through the
\nrestricted opening.<\/p>\n

Hardfacing may be applied to selected sealing and wear surfaces.
\nThe hardfacing material, thickness, hardness, adhesion and finishing
\nmethod should match the operating temperature, particles and required
\nleakage performance.<\/p>\n<\/section>\n

\n

Soft Seat or Metal Seat?<\/h2>\n
\n\n\n\n\n\n\n\n\n
Selection Factor<\/th>\nSoft Seat<\/th>\nMetal Seat<\/th>\n<\/tr>\n<\/thead>\n
Shutoff<\/td>\nSuitable for tight shutoff in compatible media<\/td>\nLeakage level depends on design and specification<\/td>\n<\/tr>\n
\u0e2d\u0e38\u0e13\u0e2b\u0e20\u0e39\u0e21\u0e34<\/td>\nLimited by the seat material<\/td>\nSuitable for higher-temperature applications<\/td>\n<\/tr>\n
Abrasive solids<\/td>\nParticles may cut or damage the seat<\/td>\nBetter suited to selected abrasive conditions<\/td>\n<\/tr>\n
Typical service<\/td>\nCooling water, clean gas and utility systems<\/td>\nHot gas, steam, ash, slurry and severe cycling<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
\n

How Are Valve Materials Selected?<\/h2>\n

Carbon steel is commonly used for general pressure service.
\nChrome-molybdenum alloy steels may be selected for higher-temperature
\nsteam and process lines. Stainless steel, duplex stainless steel,
\nnickel alloys and other special alloys may be required for corrosive
\ncooling water, pickling solutions or aggressive process media.<\/p>\n

Material selection should include the body, bonnet, stem, closure
\nmember, seat, hardfacing, packing, gasket and bolting. Temperature,
\npressure, corrosion, abrasion and thermal cycling must be considered
\ntogether.<\/p>\n

When applicable, the project may reference
\n
\nASME B16.34
\n<\/a>
\nfor pressure-temperature ratings, materials, examination, testing
\nand marking requirements within the standard\u2019s scope.<\/p>\n<\/section>\n

\n

Valves for Oxygen Service<\/h2>\n

Oxygen-service valves require special attention because oil, grease,
\nparticles and unsuitable non-metallic materials may create hazards.
\nValve materials, cleaning, assembly, packaging and operating velocity
\nshould follow the project\u2019s oxygen-service specification.<\/p>\n

Oxygen valves should be kept clean after manufacturing and protected
\nfrom contamination during storage and installation. Standard
\nindustrial valves should not be assumed suitable for oxygen service
\nwithout a complete technical review.<\/p>\n