Duplex Steel Valves Manufacturer

As a distributor of a comprehensive range of Duplex Steel Valves, Global Steel is involved in offering a vast array of Duplex Steel Valves to both local and international clients. We also provide these Duplex Steel Valves in customizable sizes and thicknesses to meet our esteemed clients’ individual needs at market-leading costs.

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A valve is a mechanical or natural object that opens, closes, or partially obstructs numerous pathways to control, direct, or regulate the flow of liquid. Steel valves with ferrite and austenite phases in their microstructure are classified as duplex steel valves. Duplex steels combine the benefits of alloys’ austenitic and ferritic families, with fewer drawbacks than other steel alloys, typically at a lower cost. In terms of strength, duplex stainless steel grades are up to twice as strong as austenitic and ferritic stainless steel grades. Valves made of duplex stainless steel are more formable under pressure and have a longer lifespan than ferrite valves. They also exhibit corrosion resistance that is comparable to (or better than) conventional austenitic grades.

Due to its outstanding corrosion resistance, high strength, and low cost, duplex steel valves are widely employed in industries. The strength of duplex stainless steel grades is twice that of austenitic and ferric stainless steel grades. Duplex steel valves have lower price volatility than most other steel grades, making it easier to forecast pricing both upfront and overtime in oil and gas exploration and nearshore operations such as oil drilling, water treatment, desalination, construction, hot water, and brewing tanks, chemical and liquid processing, marine parts, pollution control equipment, pulp and paper manufacturing, and other industrial processes.

Specification List of Duplex Steel Valves

Standards API 598 / BS EN 12266-1, ASME B 16.10, Sizes available on request API 600/BS1414, 1/8 to 1”, ASME B 16.34, ASME B 16.5, ASME B16.25
Sizes Sizes available on Request, 1/8 to 1”, 1/2′ TO 14”
Working Pressure Valves are also available which could handle higher pressure, Up to 6000 PSIG
End Connection BSPT, Male and Female NPT, Male to Female, Socket Weld (SW) or Dual Ferrule Tube Connections, Female to Female
Temperature Ratings (232C)/Grafoil 700 F(371C), PTFE 450F
Pressure Rating 150#, 300#, 600#, 800#, 1500#
Application Power/ gas/ petroleum/ chemical/ metallurgy/ shipbuilding etc.
Ends Flange Ends, Screwed Ends,Socket Weld Ends
Type Ball Valves, Globe Valves, Check Valves, Needle Valves, Butterfly Valves
Temperature Rating (232C)/Grafoil 700 F(371C),PTFE 450F
Duplex Steel Valves

Different Types of Stainless Steel Valves

SS Manifold Valves

DSS Manifold Valves

  • Duplex Steel 2 Valve Manifold
  • DSS 3 Valve Manifold
  • Duplex 2 Valve ‘F’ Type With Drain
  • Duplex Stainless Steel 2 Valve Gauge Type Manifold Valves
  • DSS Manifold 2 Valve Angle Type
  • Duplex 3 Valve Manifold
  • Duplex Stainless Steel Manifold Valves
  • DSS Manifold 2 Valve Gauge Type
  • Duplex Stainless Steel 2 Valve T Type
  • Duplex Steel Manifold Valve
  • Duplex Manifold 2 Valve T Type
  • DSS 2 Valve Manifold
  • Duplex 5 Valve Manifold
  • DSS Coplanar Manifold Valves
SS Monoflange Manifold Valves

DSS Monoflange Manifold Valves

  • Duplex Steel Double Block Monoflange Manifold Valves
  • DSS Single Block & Bleed Type-Monoflange Manifold Valves
  • DSS Monoflange Single Isolation Valves
  • Duplex Monoflange Single Isolation Valves
  • Duplex Steel Monoflange Manifold Valves
  • Duplex Stainless Steel Monoflange Single Isolation
  • Duplex Steel Double Block & Bleed
  • Duplex Single Block & Bleed Type Valves
  • Duplex Steel Monoflange Block & Bleed
SS Double Block Bleed Valves

DSS Double Block & Bleed Valves

  • Duplex Steel Double Block & Bleed Valves
  • Duplex Double Block & Bleed Valves
SS Needle Valves

DSS Needle Valves

  • Duplex Stainless Steel FxF Type Needle Valves
  • Duplex Steel OD X OD Angle Type Needle Valves
  • Duplex Integral Mounting Needle Valves
  • Duplex Stainless Steel Needle Valves
  • DSS Flange End Needle Valve
  • DSS Angle Type Needle Valves
  • Duplex Globe Handle Needle Valve
  • DSS Tube End Needle Valve
  • Duplex Stainless Steel High Pressure Needle Valves
  • Duplex Steel F X F Type Needle Valves
  • DSS Pannel Mounting Type Needle Valves
  • Duplex M X M Type Needle Valves
  • Duplex Steel OD X OD Type Needle Valves
  • Duplex Stainless Steel MxF Type Needle Valves
  • Duplex Integral Bonnet Needle Valve
SS Ball Valves

DSS Ball Valves

  • Duplex Stainless Steel 2pc Design Ball Valves
  • Duplex 1pc Design (ic) Ball Valves
  • Duplex Steel 3pc Design Ball Valves
  • Duplex Stainless Steel Hydraulic Ball Valve
  • Duplex 4 Way Type Ball Valves
  • DSS Flanged End Type Ball Valves
  • DSS 3pc Design Ball Valves
  • DSS 5 Way Ball Valve
  • Duplex OD Type Ball Valves
  • Duplex Stainless Steel High Pressure Ball Valves
  • DSS 3 Way Type Ball Valves
  • DSS Pannel Mounting Ball Valves
  • Duplex Instrumentation Ball Valve
  • Duplex Steel 3 Way Type Ball Valves
  • DSS 2 Way Ball Valve
  • Duplex Steel 2pc Design Ball Valves
  • DSS Bolted Type Ball Valves
SS Check Valves

DSS Check Valves (nrv) & Piston

  • Duplex Stainless Steel Female X Female Check Valve
  • Duplex Poppet Check Valves
  • DSS 6000 PSI Check Valve
  • Duplex Steel Ball Seat Type Check Valves
  • DSS Compression Check Valves
  • DSS High Pressure Spring Load Type Check Valves
  • DSS 3000 PSI Check Valve
  • Duplex Stainless Steel Spring Check Valve
  • DSS Piston Type Check Valves
  • Duplex Stainless Steel Spring Load Type Check Valves
  • Duplex Steel Check Valves
  • DSS High Pressure Check Valve
  • Duplex Steel Inline Check Valves
  • Duplex Stainless Steel 15000 PSI Check Valve

Contact us to get a quick quote for your requirement.

We Offer These Duplex Steel Valves As Per DIN, ISO, JIS Or ANSI Standard.

Available Stock of SS Valves

  • Duplex Stainless Steel Instrumentation Non Return Valve
  • Type DSS Industrial Valves
  • Duplex High Pressure Ball Valves
  • DSS Manifold Check Valve
  • Duplex Stainless Steel Panel Mounted Needle Valve
  • Duplex Steel Monoflange Valves
  • DSS Hydraulic Ball Valve
  • DSS Instrumentation Needle Valve
  • DSS Instrumentation Check Valve
  • DSS Integral-Bonnet Needle Valves
  • Duplex Steel Mini Needle Valve
  • Duplex Steel Threaded Butterfly Valves
  • Duplex Stainless Steel Panel Mounted Ball Valve
  • Duplex Steel Pannel Mounting Ball Valve
  • Duplex Steel Forged Steel Valves
  • Duplex Stainless Steel Valves
  • DSS Forged Integral Bonnet Angle Type Needle Valves
  • Duplex Steel Block Bleed Valve
  • Duplex Steel 4 Way Ball Valve
  • DSS Female X Female Check Valve
  • Duplex Stainless Steel NRV Check Valve
  • Duplex Steel Hydraulic Ball Valve
  • Duplex Stainless Steel Double Block & Bleed Valves
  • Duplex Steel Instrumentation Check Valve
  • Duplex Non Return Valve
  • Duplex Steel Ball Valve Threaded
  • DSS Bleed and Purge Valves
  • Duplex Pressure Reducing Valve
  • Duplex Steel Forged-Body Needle Valves
  • Duplex Stainless Steel Monoflange Manifold Valves
  • Duplex Steel 5 Way Manifold Valve
  • DSS 3-way Flange Ball Valves
  • Duplex Steel 2 Way Ball Valves
  • Duplex Stainless Steel 3 PCS Ball Valve
  • Duplex Steel High Pressure Ball Valve
  • Austenitic Duplex Steel Valves
  • DSS Instrument Solenoid Valve
  • DSS 3 Way Needle Valve

Duplex Steel Valves Pressure Rating

Pressure & Temperature Limit accordance to ANSI/ ASME B16.34 material

Temp. °F 150 300 400 600 900 1500 2500
-20 to 100 275 720 960 1440 2160 3600 6000
200 230 600 800 1200 1800 3000 5000
300 205 540 720 1080 1620 2700 4500
400 190 495 660 995 1490 2485 4140
500 170 465 620 930 1395 2330 3880
600 140 435 580 875 1310 2185 3640
650 125 430 575 860 1290 2150 3580
700 110 425 565 850 1275 2125 3540
750 95 415 555 830 1245 2075 3460
800 80 405 540 805 1210 2015 3360
850 65 395 530 790 1190 1980 3300
900 50 390 520 780 1165 1945 3240
950 35 380 510 765 1145 1910 3180
1000 20 320 430 640 965 1605 2675
1050 20 [1] 310 410 615 925 1545 2570
1100 20 [1] 255 345 515 770 1285 2145
1150 20 [1] 200 265 400 595 995 1655
1200 20 [1] 155 205 310 465 770 1285
1250 20 [1] 115 150 225 340 565 945
1300 20 [1] 85 115 170 255 430 715
1350 20 [1] 60 80 125 185 310 515
1400 20 [1] 50 65 95 145 240 400
1450 15 [1] 35 45 70 105 170 285
1500 10 [1] 25 35 55 80 135 230

Duplex Steel Neddle Valve Dimension Standards

Size L a b W H
1/8″ 56 28 28 60 80
¼” 56 28 28 60 80
3/8” 56 28 28 60 80
½” 58 28 28 60 81
¾” 62 35 35 60 85
1” 70 45 45 70 100
Port Size (BSP) Media Pressure Media Temperature CV
1/8″ 0 to 408 Bar -20°C to 230°C  
¼” 0 to 408 Bar -20°C to 230°C 0.4
3/8” 0 to 408 Bar -20°C to 230°C 0.4
½” 0 to 408 Bar -20°C to 230°C 0.6
¾” 0 to 408 Bar -20°C to 230°C 1.6
1” 0 to 408 Bar -20°C to 230°C 2.5

We Serve Application Industry

Application Industry

Valves applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

Oil & Gas Industry

Petrochemical Industry

Power Generation Industry

Chemical Industry

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We Export Duplex Steel Valves Across The Globe

Sri Lanka, Libya, Romania, Gambia, Kenya, France, Trinidad & Tobago, Sweden, Macau, South Korea, Angola, Morocco, Japan, Turkey, Estonia, Qatar, Iraq, Kuwait, Ecuador, Tibet, Serbia, Costa Rica, Namibia, Bolivia, Poland, Canada, United Arab Emirates, Malaysia, Denmark, India, Afghanistan, Hong Kong, Gabon, China, United Kingdom, Philippines, Italy, Egypt, Algiera, Israel, Lahore, Hungary, Pakistan, Russia, Greece, Slovakia, Mexico, Croatia, United States, Tunisia, Yemen, Algeria, Jordan, Vietnam, Netherlands, Colombia, Kazakhstan, Thailand, Ghana, Peru, Lebanon, Belgium, Lithuania, Switzerland, Brazil, Czech Republic, Chile, Austria, Bahrain, Bangladesh, Mongolia, Argentina, Indonesia, Venezuela, Puerto Rico, Oman, Finland, Bulgaria, Saudi Arabia, South Africa, Bhutan, Ireland, Germany, Nigeria, Iran, New Zealand, Taiwan, columbia, Nepal, Australia, Azerbaijan, Zimbabwe, Belarus, Norway, Ukraine, Singapore, Portugal, Spain.

Domestic Supply Duplex Steel Valves

Rajkot, Surat, Howrah, Chennai, Kanpur, New Delhi, Ranchi, Hyderabad, Navi Mumbai, Thane, Jaipur, Visakhapatnam, Ludhiana, Ahmedabad, Noida, Nashik, Chandigarh, Bengaluru, Jamshedpur, Bhopal, Gurgaon, Thiruvananthapuram, Kolkata, Pimpri-Chinchwad, Nagpur, Faridabad, Indore, Pune, Ernakulam , mumbai, Secunderabad, Haryana.

Global Steelindia

Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.

Quick Contact

Shop No.6, Sonarika Bldg, 25/C, Chandawadi, Cawasji Patel Tank, Mumbai, Maharashtra 400004