High Pressure Ball Valves Series : VB71


DAWSONS-TECH Ball Valve Series : VB71 Three piece bi-directional flow Ball Valves offer high pressure rating up to 10,000 PSIG (690 Bar). The Live-Loaded PEEK Seat ensure 100% bubble tight shut off and continuous repeatable performance and also compensate for wear and pressure / temperature charges. This Ball Valves are for most demanding applications in Hydraulic and Process Control Industries.

Features / Benefit :
  • Available in Material SS316
  • Material Traceable to certified material test report
  • Three piece body design.
  • Low torque operation, Bi-directional Flow
  • Line Loaded PEEK Seat ensure bubble tight sealing and compensate for wear and Pressure / Temperature changes.
  • Floating Ball design
  • Quarter turn positive stop handle.
  • Every Valve is pressure tested.
Operating Parameters :
  • Pressure Rating : UPTO 10,000 PSIG (690 BAR) at CWP with PTFE packing, PEEK Seat and Fluorocarbon ‘O’ Ring
  • Temperature Rating : -54o C to 180o C (depending on ‘O’ Ring material)
  • End Connections - Inch : 1/4” to 1” Tube OD
  • Metric : 6mm to 25mm Tube OD
  • Pipe Threads: 1/4” to 1” Male / Female BSP / BSPT / NPT
Applications :
  • Hydraulic
  • Gas
  • Instrument Air Lines
  • High Pressure Instrument Lines
  • General Plant Service
Type Test Approvals :
The design of DAWSONS-TECH Ball Valves Series : VB81 have been tested to Hydrostatic Proof & Burst Test in accordance to MSS SP-99-2016a Clause 5.5 & 5.6.

Testing :
  • Standard Test - Each Valve is pressure tested with Nitrogen at 1000 PSIG (69 Bar) for leakage at the seat and packing.
  • Optional Hydrostatic Test - This Test is performed with De-ionized water at 1.5 times the working pressure.
  •  
    Certification :
    The Certificate to 3.1 acc. to EN10204 for Valves body material and pressure test will be provided on request.

    Material of Constructions :
    1Handle with PVC GripSS316
    2Locking Dome NutSS316
    3Lock NutSS316
    4Anti-blowout stemSS316
    5Spring WasherSS316
    6Thrust WasherSS316
    7Thrust RingPEEK
    8Backup RingPTFE
    9‘O’ RingVITON
    10Thrust RingPEEK
    11End ConnectorSS316
    12‘O’ RingVITON
    13DISC SpringSTAINLESS STEEL
    14BodySS316
    15BallSS316
    16Ball SeatPEEK
    17‘O’ RingVITON
    18Backup RingPTFE
    19Seat supporterSS316

    Standard Configuration Dimensions :
    End ConnectionFlow DataDimensions in mmDawsons-Tech Part No.
    TypeSize - AOrifice (mm)CvBCDEA/F-1A/F-2
    Female NPT1/4"6.42.3441.041.042.087.028.5722.20VB71-FF4N
    3/8”8.34.3043.043.046.0101.031.7525.40VB71-FF6N
    1/2"10.36.4251.551.548.0101.034.9327.00VB71-FF8N
    3/4"12.212.4554.554.550.0101.038.1031.75VB71-FF12N
    1”15.017.3561.861.853.0101.044.4041.27VB71-FF16N
    Male NPT1/4"4.81.2043.343.342.087.028.5722.20VB71-MM4N
    3/8”6.42.3445.445.446.0101.031.7525.40VB71-MM6N
    1/2"10.36.4253.253.248.0101.034.9327.00VB71-MM8N
    3/4"10.36.4255.555.550.0101.038.1031.75VB71-MM12N
    1”15.017.3565.865.853.0101.044.4041.27VB71-MM16N
    Female BSP1/4"6.42.3441.041.042.087.028.5722.20VB71-FF4RG
    3/8”8.34.3043.043.046.0101.031.7525.40VB71-FF6RG
    1/2"10.36.4251.551.548.0101.034.9327.00VB71-FF8RG
    3/4"12.212.4554.554.550.0101.038.1031.75VB71-FF12RG
    1”15.017.3561.861.853.0101.044.4041.27VB71-FF16RG
    Fractional Tube Fitting1/4"4.81.2045.845.842.087.028.5722.20VB71-TT4
    3/8”6.42.3450.550.546.0101.031.7525.40VB71-TT6
    1/2"10.36.4257.057.048.0101.034.9327.00VB71-TT8
    3/4"12.212.4561.361.350.0101.038.1031.75VB71-TT12
    1”15.017.3570.570.553.0101.044.4041.27VB71-TT16
    Metric Tube Fitting6mm4.20.9345.845.842.087.028.5722.20VB71-TT6M
    8mm6.42.3446.546.542.0101.028.5722.20VB71-TT8M
    10mm6.42.3450.550.546.0101.031.7525.40VB71-TT10M
    12mm9.55.5757.057.048.0101.034.9327.00VB71-TT12M
    16mm10.36.4260.060.050.0101.038.1031.75VB71-TT16M
    25mm15.017.3570.570.553.0101.044.4041.27VB71-TT25M
      Dimensions are for reference only and are subject to change.