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VB3C series
Compact Type Ball Valve 2 Way, Shut Off & 3 Way, Switching

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  • Instruments | Valve | Ball Valves
  • Dimensions
  • How To Order
  • Applications
  • Features

Dimensions

Part No.End ConnectionOrificeCVDimensions (mm)
InletOutletLIhh1HGQWF
   2 Way
VB3CU-02T-1/8" UNILOK2.30.251.025.58.88.83415.04.817.028.0
VB3CU-M03T-3mm UNILOK50.825.4
VB3CU-04T-1/4" UNILOK3.20.655.427.7
VB3CU-M06T-6mm UNILOK0.655.427.7
VB3CF-02N-1/8" Female NPT0.541.220.6
   3 Way
VB3CXU-02T-1/8" Female NPT2.30.1551.025.524.88.83415.04.817.028.0
VB3CXU-M03T-3mm Female NPT50.825.425.4
VB3CXU-04T-1/4" UNILOK3.20.3555.427.726.7
VB3CXU-M06T-6mm UNILOK55.427.726.7
VB3CXF-02N-1/8" Female NPT41.220.619.6
Female ISO7/1 Tapered Threads (PT) are available for all fractional sizes of VB3CF and VB3CXF series valves. Add “R” as a suffix instead of “N”.

How To Order

UNILOK VB3 series ball valves are ordered by part number as shown below.

Example: The following part number, VB33U-08T-SS is designated for VB3 series ball valve with both 1/2" UNILOK tube fitting, 316SS, PTFE seat.


VB3CU-08T-SS- 
UNILOK
Valve
Valve
Type
Connection
type 
Connection
Size
Body
Materials
Handle
Color
Valve TypeConnection SizeBody Materials
B32 Way TypeFractional(Inch) Tube O.D. DesignationSS316SS
B3X3 Way TypeTube
O.D.
inch1/43/81/23/4BSBrass
B3CCompact Type, 2 & 3 Waymm6.359.5212.7019.05
B3CACompact Type, Angle PatternDesignator04T06T08T12TColored directional handles are
available only for VB3C series,
compact type ball valves.
Connection TypeMetric Tube O.D. Designation
UUNILOK Tube FittingTube O.D.mm681012
FFemale NPT or ISO7/1(PT)DesignatorM06TM08TM10TM12T
Pipe Size Designation (NPT or ISO7/1-PT)
Pipe Size1/81/43/81/2
Designator02N/R04N/R06N/R08N/R

Applications

VB3, VB3X series ball valves with lowest dead volume is required in analytical purpose to prevent fluid entrapment which can cause contamination.  


Sour Environment Services

UNILOK valves are comply with NACE MR-0175/ISO 15156 for sour oilfield application or NACE MR-0103 for petroleum refining operations. To order, add-N to the end of part number. 


Testing

Each valve undergoes 100% factory testing with air and nitrogen at 1000 psig (69 bar) to check for seat and packing leakage. Each test is conducted with a maximum allowable leak rate of 0.1 scc/min.  


Cleaning

UNILOK valves are free from machine oils, loose particles and grease throughout the close cleaning process. 

The special cleaning for high purity application is available upon request. 


Important Notification

UNILOK ball valves are designed to be operated in a fully open or fully closed position.

The packing adjustment may be required during the valve’s service life.

Proper installation, materials compatibility, operation and maintenance of these valves are the responsibility of the user. The total system design must be taken into consideration to ensure optimal performance and safety.

Features

 

The pressure rating for valves with a 4.8 orifice and standard PTFE seats is 3000 psig (206 bar) 

For other valves, the pressure rating is 2500 psig (172 bar) 

The temperature rating, with standard PTFE packing, ranges from 10 ℃ (50 ℉) to 65 ℃ (150 ℉) 

The compact one-piece design minimizes space requirements and potential leak points. 

The one-piece integral ball stem eliminates backlash and ensures perfect encapsulation of ball seats. 

Designed for panel mounting to facilitate easy installation. 

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