Fully Welded Ball Valves

Fully welded ball valve is one of the most commonly used valves in the petroleum industry. The distinctive design of the valve increases strength while reduces weight as well as increases resistance to pressure and stress on the pipeline. The ball valve combines the strength of forged components with a lightweight and compact spherical design. The compact, spherical design also eliminates body flanges, reducing overall size and potential leak paths further.

Fully welded ball valve is mainly used in gas transmission and distribution pipeline (mid-stream), especially for underground and buried installation. 

Durlmark Valve provides fully welded ball valve having various specifications: Stainless Steel/Forged Steel, 150/300/600LB, API 6D, 1-PC/3-PC, Nylon Seat, Extensile Stem. Other specifications are also available. Please feel free to contact us: info@durlmark.com.

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  1. 1/2 Inch MPT X 1/2 Inch FPT Stainless Steel Ball Valves,CPTFE Seat

    Model No.: DM-Ball-Valves-365
    China Stainless Steel Ball Valve Manufacturer: Stainless Steel Ball Valves, ASTM A351-CF8, SS304, 2000 PSI, 1/2 Inch MPT X 1/2 Inch FPT, CPTFE Seat.
  2. 6 Inch 150LB ASTM A350 LF2 Fully Welded Body Ball Valves,Flanged End

    Model No.: DM-Ball-Valves-366
    China ASTM A350 LF2 Ball Valve Manufacturer: ASTM A350 LF2 Fully Welded Body Ball Valve, 150 LB (PN20), 6 Inch, Gear Operated, RF Ends, Metal Seat.
  3. 12 Inch 300LB Extented Stem Full Welded Ball Valves,Flanged RF End

    Model No.: DM-Ball-Valves-367
    China Extented Stem Full Welded Ball Valve: ASTM A105 Forged Steel Ball Valves, Extension Stem, 12 Inch (DN300), Class 300LB, Flanged RF End, API 6D.
  4. 30 Inch 600LB Nylon Seat Full Welded Ball Valves,Flanged RTJ

    Model No.: DM-Ball-Valves-368
    China Full Welded Body Ball Valve: ASTM A105 Full Welded Ball Valves, 600LB (PN100), 30 Inch, Nylon, Fire Safe, Full Port Seated, Flanged RTJ, API 6D.
  5. 1/2-36 Inch Fully Welded Trunnion Ball Valves,EN 12266

    Model No.: DM-Ball-Valves-369
    China Fully Welded Ball Valve Supplier: Fully Welded Trunnion Ball Valves, Flanged, F304, F304L, F316 and F316L, EN 12266, 150-2500LB, 1/2-36 Inch.
  6. 1/4 Inch ASTM A351 1-PC Ball Valves,Screwed NPT Ends,1000 WOG

    Model No.: DM-Ball-Valves-370
    China ASTM A351 Screwed Ball Valve Supplier: ASTM A351 CF8 Ball Valve, 1-PC, 1/4 Inch (DN8), 1000 WOG, Screwed NPT Ends, SS304 Trim & Ball, PTFE Seal.
  7. 3/4 Inch 150LB 3-PC Extensile Stem Ball Valves,Threaded NPT Ends

    Model No.: DM-Ball-Valves-371
    China Extensile Stem Ball Valve: 3-PC Extensile Stem Ball Valves, ASTM A350 LF2, Threaded NPT Ends, 150LB (PN20), 3/4 Inch, SS316 Ball, RPTFE Seal.
  8. 20 Inch 600LB ASTM A105 Fully Welded Ball Valves,Flanged RF,Nylon Seat

    Model No.: DM-Ball-Valves-372
    China ASTM A105 Fully Welded Ball Valve: Forged Steel Full Welded Ball Valves, ASTM A105, DN500, 600LB, API 6D, Flanged RF, Nylon Seat, Stem Op.

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