DAWSONS-TECH Ball Valves Series : VB91 offer high pressure rating UPTO 6000 PSIG (413 Bar). The design of this Ball Valve is having Live Loaded PEEK Seat, which provides repeated leak tight shut-off and also compensate for wear & pressure / Temperature changes during its operations.
These Valves can be used as diverting or selecting Valves for Fluid / Gas utilized in process and Instrumentations.
These Valves can be used as diverting or selecting Valves for Fluid / Gas utilized in process and Instrumentations.
Features / Benefits :
- Available in Material SS316, Material traceable to certified Material Test Report.
- 180° Low Torque Actuation, Panel Mountable.
- Can be operated manually, Pneumatically and Electrically.
- Live loaded PEEK Seat, Floating Ball design.
- Every Valve is pressure tested.
Product Range & Operating Parameters :
- Pressure Rating : UPTO 6000 PSIG (413 Bar) 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 NPT, BSPT & BSP.
Applications :
- Hydraulic
- Gas
- Instrument Air Lines
- High Pressure Instrument Lines
- General Plant Service
Type Test Approvals :
The design of DAWSONS-TECH Ball Valves Series : VB91 have been tested to Hydrostatic Proof & Burst Test in accordance to MSS SP-99-2016a Clause 5.5 & 5.6.Testing :
Certification :
The Certificate to 3.1 acc. to EN10204 for Valves body material and pressure test will be provided on request.Material of Constructions :
| Sr. No. | Part Description | Material |
| 1 | Handle | Nylon |
| 2 | Handle Set Screw | SS316 |
| 3 | Stem | SS316 |
| 4 | Packing Nut | SS316 |
| 5 | Panel Nut | SS316 |
| 6 | Stem Bearing | PEEK |
| 7 | Seal Retainer | SS316 |
| 8 | ‘O’ Ring | Fluorocarbon |
| 9 | Back-up Ring | PTFE |
| 10 | Stem Washer | SS316 |
| 11 | End Connector | SS316 |
| 12 | Connector ‘O’ Ring | Fluorocarbon |
| 13 | Belleville Washers | Stainless Steel |
| 14 | Valve Body | SS316 |
| 15 | Floating Ball | SS316 |
| 16 | Valve Seat | PEEK |
| 17 | ‘O’ Ring | Fluorocarbon |
| 18 | Back-up Ring | PTFE |
| 19 | Seat Support | SS316 |
Standard Configuration Dimensions :
| End Connection | Flow Data | Dimensions in mm | Dawsons-Tech Part No. | |||||||||
| Type | Size - A | Orifice (mm) | Cv | B | C | D | E | F | G | H | I | |
| Female NPT | 1/4" | 5.0 | 0.87 | 41.0 | 41.0 | 44.0 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-FFF4N |
| 3/8” | 10.3 | 3.62 | 43.0 | 43.0 | 58.2 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-FFF6N | |
| 1/2" | 10.3 | 3.62 | 51.5 | 51.5 | 63.2 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-FFF8N | |
| 3/4" | 10.3 | 6.42 | 54.5 | 54.5 | 65.8 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-FFF12N | |
| Male NPT | 1/4" | 5.0 | 0.87 | 43.3 | 43.3 | 46.7 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-MMM4N |
| 3/8” | 5.0 | 0.87 | 48.0 | 48.0 | 46.7 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-MMM6N | |
| 1/2" | 10.3 | 3.62 | 53.2 | 53.2 | 65.8 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-MMM8N | |
| 3/4" | 10.3 | 3.62 | 53.2 | 53.2 | 65.8 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-MMM12N | |
| Fractional Tube Fitting | 1/4" | 4.7 | 0.70 | 45.7 | 45.7 | 49.5 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-TTT4 |
| 3/8” | 5.0 | 0.87 | 50.5 | 50.5 | 51.3 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-TTT6 | |
| 1/2" | 10.3 | 3.62 | 56.7 | 56.7 | 68.0 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-TTT8 | |
| 3/4" | 10.3 | 3.62 | 61.3 | 61.3 | 68.0 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-TTT12 | |
| Metric Tube Fitting | 6mm | 4.7 | 0.70 | 45.7 | 45.7 | 49.5 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-TTT6M |
| 8mm | 5.0 | 0.87 | 46.5 | 46.5 | 50.5 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-TTT8M | |
| 10mm | 5.0 | 0.87 | 50.5 | 50.5 | 51.3 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-TTT10M | |
| 12mm | 10.3 | 3.46 | 56.7 | 56.7 | 68.0 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-TTT12M | |
| 16mm | 10.3 | 3.62 | 56.7 | 56.7 | 68.0 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-TTT16M | |
| Metal Gasket Face Seal | 1/4" | 4.6 | 0.68 | 41.0 | 41.0 | 35.8 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-GFS4 |
| 1/2" | 9.5 | 3.46 | 47.9 | 47.9 | 57.7 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-GFS8 | |
| ‘O’ Ring Face Seal | 1/4" | 4.8 | 0.70 | 47.2 | 47.2 | 39.1 | 15.2 | 38.9 | 38.1 | 19.6 | 6.4 | VB91-ORF4 |
| 1/2" | 10.3 | 3.62 | 55.2 | 55.2 | 65.0 | 18.8 | 44.2 | 63.5 | 22.9 | 9.7 | VB91-ORF8 | |