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VC3 series
3000 psig, Fixed Cracking Pressure

范畴

  • Instruments | Valve | Check Valve
  • Dimensions
  • How To Order
  • Pressure Specifications
  • Features

Dimensions


Dimensions
Part No.End  ConnectionsCVDimensions (mm)
InletOutletLh
VC31U-02T-1/8" UNILOK0.1654.515.87
U-04T-1/4" UNILOK0.4759.0
U-M06T-6mm UNILOK59.2
F-02N- 1/8" Female NPT46.7
M-02N-1/8" Male NPT47.3
M-04N-1/4" Male NPT52.8
MU-04N04T-1/4" Male NPT1/4" UNILOK56.0
F-04N-1/4" Female NPT54.719.05
VC32U-06T-3/8" UNILOK1.4880.622.22
U-M10T-10mm UNILOK81.2
M-06N-3/8" Male NPT70.6
VC33U-08T-1/2" UNILOK1.7086.122.22
U-M12T-12mm UNILOK86.2
F-06N-3/8" Female NPT76.6
M-08N-1/2" Male NPT83.3
F-08N-1/2" Female NPT91.426.98
VC34U-10T-5/8" UNILOK2.6088.028.58
F-08N-1/2" Female NPT91.2
VC35U-12T-3/4" UNILOK5.2092.031.75
F-12N-3/4" Female NPT88.2
M-12N-3/4" Male NPT86.2
VC36U-16T-1" UNILOK8.00106.334.92
F-16N-1" Female NPT123.041.27
M-16N-1" Male NPT102.334.92
ISO7/1 Tapered Threads (PT) are available for all fractional sizes of VC3
series valves. Add “R” as a suffix instead of “N”.

How To Order


UNILOK VC series check valves are ordered by part number as shown below.

Example: The following part number, VC31U-04T-SS-01 is designated for VC3 series check valve with both 1/4", UNILOK tube fitting, 1psig cracking pressure, 316SS.


VC31U-04T-SS-01- 
UNILOK
Valve
Valve
Type
Connection
type 
Connection
Size
Body
Materials
Cracking
Pressure
O-ring
Materials
Valve TypeConnection SizeBody Materials
C33000psig Fixed CPFractional(Inch) Tube O.D. DesignationSS316SS
C66000psig Fixed CPTube
O.D.
inch1/81/43/81/23/41BSBrass
C3C3000psig Compact Fixed CPmm3.176.359.5212.7019.0525.40MOAlloy 400
C3CA3000psig Compact Adjustable CPDesignator02T04T06T08T12T16T
CP - Cracking PressureCracking Pressure
Metric Tube O.D. Designation1/31/3 psig
Connection TypeTube O.D.mm368101225011 psig
UUNILOK Tube FittingDesignatorM03TM06TM08TM10TM12TM25T033 psig
FFemale NPT or ISO7/1(PT)1010 psig
MMale NPT or ISO7/1(PT)Pipe Size Designation (NPT or ISO7/1-PT)2525 psig
Pipe Size1/81/43/81/23/41100100 psig
Designator02N/R04N/R06N/R08N/R12N/R16N/R
O-ring Materials
NoneFKM
EPDMEthylene Propylene
NBRBuna N
PNeoprene
KKalrez
Seal kits and spring kits are available
for retrofit or maintenance. Contact
UNILOK local distributors.

Pressure Specifications

Pressure Rating at 70(21)Cracking - Reseal Pressure
Series316SSBrassNorminal
Cracking
Pressure
Cracking Pressure RangeReseal
Pressure
psigbarpsigbarMin.Max.
VC31300020730002071/303up to 6
VC32
VC33
30002073000207104up to 5
327up to 4
VC34
VC35
VC36
20001381500103107153
25203017
50406035
75609053
1008012070

Features



 

Cleaning

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


Testing

Every check valve is 100% factory tested with nitrogen for cracking and reseal performance.

Special cleaning for high-purity applications is available upon request.


Important Notification

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.

UNILOK check valves are designed for directional flow control only.

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