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Two Way Ball Valve Series : VB81

Two Way Ball Valve Series : VB81

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Ball Valves

two way ball valve VB81

two way ball valve VB81

Series : VB81

DAWSONS-TECH® Ball Valves Series : VB81 with Live Loaded PEEK Seat provides repeated leak tight shut off and also compensate for wear and Pressure / Temperature fluctuations during its operations. This Valves are most suitable to be used in Fluid / Gas Control System in wide range of Industrial Segments.

Features / Benefits :

  • Available in Material SS316
  • Three-piece body design with Panel mounting body
  • Low torque actuation Bi-directional flow
  • Live loaded PEEK seat
  • Floating Ball design
  • Quarter turn positive stop handle
  • Every Valve is pressure tested

Product Range & Operating Parameters :

  • Pressure Rating : UPTO 413 Bar (6000 PSIG) at CWP with PTFE packing, PEEK Seat and Fluorocarbon ‘O’ Ring
  • Temperature Rating : 54°C to 180°C (depending on ‘O’ Ring Material)
  • End Connections
    • Fractional 1/4″ to 3/4″ Tube OD
    • Metric 6mm to 16mm Tube OD
  • Pipe Threads : 1/4″ to 3/4″ 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 : VB43 have been tested to Hydrostatic Proof and Burst Test in accordance with 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 Valve Body Material and pressure test will be provided on request.

Material of Construction :

Sr. No.Part DescriptionMaterial
1Handle With Brass InsertNylon
2Grub ScrewSS316
3Panel NutSS316
4Packing NutSS316
5Stem BearingPEEK
6Stem WasherPEEK
7Stem ‘O’ RingFluorocarbon
8Stem Back-up RingPTFE
9Stem Seal RetainerSS316
10Retainer Back-up RingPTFE
11Retainer ‘O’ RingFluorocarbon
12Valve StemSS316
13End ConnectorSS316
14Connector ‘O’ RingFluorocarbon
15Belleville WashersStainless Steel
16Gland Back-up RingPTFE
17Gland ‘O’ RingFluorocarbon
18Seat GlandSS316
19Ball SeatPEEK
20Floating BallSS316
21Valve BodySS316
End Connection Dimensions in mm Dawsons-Tech Part No.
Type Size – A Orifice Cv B C D E G H I A/F
Female NPT 1/8” 4.2 0.92 31.9 31.9 8.6 34.5 30.0 14.8 4.0 14.27 VB81-FF2N
1/4” 6.3 2.34 39.6 39.6 13.5 38.2 38.0 19.5 6.3 20.6 VB81-FF4N
3/8” 8.2 4.30 42.8 42.8 15.3 39.0 38.0 19.5 6.3 25.4 VB81-FF6N
1/2″ 10.2 6.42 51.3 51.3 16.0 46.0 63.5 22.7 9.5 27.0 VB81-FF8N
3/4″ 12.2 12.45 53.6 53.6 18.6 44.5 63.5 22.7 9.5 31.75 VB81-FF12N
Male NPT 1/8” 4.2 0.92 33.7 33.7 8.6 34.5 30.0 14.8 4.0 14.27 VB81-MM2N
1/4” 6.3 2.34 42.0 42.0 13.5 38.2 38.0 19.5 6.3 20.6 VB81-MM4N
3/8” 8.2 4.30 46.2 46.2 15.3 39.0 38.0 19.5 6.3 25.4 VB81-MM6N
1/2″ 10.2 6.42 55.2 55.2 16.0 46.0 63.5 22.7 9.5 27.0 VB81-MM8N
3/4″ 12.2 12.45 57.4 57.4 18.6 44.5 63.5 22.7 9.5 31.75 VB81-MM12N
Male x Female NPT 1/8” 4.2 0.92 33.7 31.9 8.6 34.5 30.0 14.8 4.0 14.27 VB81-MF2N
1/4” 6.3 2.34 42.0 39.6 13.5 38.2 38.0 19.5 6.3 20.6 VB81-MF4N
3/8” 8.2 4.30 46.2 42.0 15.3 39.0 38.0 19.5 6.3 25.4 VB81-MF6N
1/2″ 10.2 6.42 55.2 51.3 16.0 46.0 63.5 22.7 9.5 27.0 VB81-MF8N
3/4″ 12.2 12.45 57.4 53.6 18.6 44.5 63.5 22.7 9.5 31.75 VB81-MF12N
Fractional Tube Fittings 1/8” 2.2 0.21 33.0 33.0 8.6 34.5 30.0 14.8 4.0 14.27 VB81-TT2
1/4” 4.2 0.92 34.7 34.7 8.6 34.5 30.0 14.8 4.0 14.27 VB81-TT4
3/8” 6.3 2.34 40.2 40.2 13.5 38.2 38.0 19.5 6.3 20.6 VB81-TT6
1/2″ 10.2 6.42 47.9 47.9 16.0 46.0 63.5 22.7 9.5 27.0 VB81-TT8
3/4″ 12.2 12.45 50.0 50.0 18.6 44.5 63.5 22.7 9.5 31.75 VB81-TT12
Metric Tube Fittings 3mm 2.0 0.21 33.0 33.0 8.6 34.5 30.0 14.8 4.0 14.27 VB81-TT3M
6mm 4.2 0.92 34.7 34.7 8.6 34.5 30.0 14.8 4.0 14.27 VB81-TT6M
8mm 6.3 2.34 39.8 39.8 13.5 38.2 38.0 19.5 6.3 20.6 VB81-TT8M
10mm 8.2 4.30 44.0 44.0 15.3 39.0 38.0 19.5 6.3 25.4 VB81-TT10M
12mm 10.2 6.42 47.9 47.9 16.0 46.0 63.5 22.7 9.5 27.0 VB81-TT12M
16mm 12.2 12.45 50.4 50.4 18.6 44.5 63.5 22.7 9.5 31.75 VB81-TT16M

Dimensions are for reference only and are subject to change.

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DAWSONS-TECH COMPONENTS LLP
Unit No. DD – 6 & 7, Khan Real Industrial Estate, N. H. 08, Pelhar, Vasai Phata, Vasai East, Dist. Palghar – 401208, Maharashtra, INDIA.

Email :  info@dawsonstech.com

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