Standard1/4-28 InlineCheckValves
XX
Addback-flowprotection to any 1/4-28 flat-bottomport
XX
15psi (1bar) and3psi (0.2bar) crackingpressure versions
XX
Excellent chemical resistance
XX
Materials of construction: PEEK; PCTFE; perfluoroelastomer;
PTFE (CV-3301 andCV-3302); stainless steel (CV-3301 and
CV-3302); or gold-plated stainless steel (CV-3315 andCV-3316)
Connect these Upchurch
Scientific
®
InlineCheckValves
to any 1/4-28 flat-bottom
port. Then threadyour1/4-28
flat-bottom fitting into the
check valve to connect the
tubing. Once installed, the
spring-actuated sealing
systemeliminates back flow,
helping toprevent upstream
contaminationor damage. In
addition, the unique design
of thisproduct eliminates theadditional tubing cuts and connections
required to install conventional inlinecheckvalves.
CV-3315
Standard, Inlet
1/4-28FBMale to1/4-28FBFemale
3psi (0.2bar) crackingpressure
CV-3301
Standard, Inlet
1/4-28FBMale to1/4-28FBFemale
15psi (1bar) crackingpressure
CV-3302
Standard,Outlet
1/4-28FBMale to1/4-28FBFemale
15psi (1bar) crackingpressure
CV-3316
Standard,Outlet
1/4-28FBMale to1/4-28FBFemale
3psi (0.2bar) crackingpressure
Nonmetallic10-32Micro-Volume
InlineCheckValve
XX
Crackingpressureof 8psi (0.6bar)
XX
Excellent chemical resistance
XX
Materials of construction: PEEK andperfluoroelastomer,
suitable for biological applications
Withasweptvolumeofonly7.4µL, theUpchurchScientific InlineMicro-
VolumeCheck Valve is perfect for applicationswhere low flowpath
volume iscritical, suchasdelivery to lab-on-a-chip, single-cell analysis
andmicro-ornano-LCpost-columnderivatization.Once installed, this
checkvalvehelpspreventbackflowandthepotential forcontamination
or damage to sensitiveupstreamequipment.
CV-3500
Micro-Volume Inline
10-32CFemale to10-32CFemale
RELATEDPRODUCTS
XX
1/4-28 InlineCheckValves andNon-MetallicCheckValveswith
1/4-28 flat-bottomports (next page) canbeusedwith any 1/4-28
Flangeless, Super Flangeless
™
, andVacuTight
™
fittingonpages
21–28of theFittingsChapter.
XX
Micro-Volume InlineCheckValves andNon-MetallicCheckValves
with 10-32 conedports (next page) canbeusedwith any 10-32
polymer Fingertight or SealTight
™
fittingonpages 11–15. Connect
capillary tubingusing theoptional ferrules listedonpage 15or the
NanoTight
™
Fittings andTubingSleeves onpage 17.
SPECIFICATIONS&DETAILS
Swept
Volume Thru-Hole
Max. Pressure
Rating
BackPressure
Created
CrackingPressure
Tolerance
Standard 1/4-28 FB
CV-3301, CV-3302
20µL 0.020” (0.50mm)
2,000psi (138bar) 45psi (3.1bar) ±5psi (0.34bar)
CV-3315, CV-3316
16µL 0.020” (0.50mm)
2,000psi (138bar) 10psi (0.7bar) ±1.5psi (0.10bar)
Nonmetallic 10-32ConedMicro-Volume
CV-3500
7.4µL 0.010” (0.25mm) 3,000psi (207bar) 25psi (1.7bar) ±5psi (0.34bar)
NOTE
Checkvalves are specifiedby:
XX
CrackingPressure:
thepressure required for the valve toopen
in thedirectionof the arrow.
XX
MaximumPressure:
themaximumpressure the valve can
experience in the reversedirectionwithout leakingbackwards.
XX
BackPressureCreated:
the amount of backpressuregenerated
by the check valvewith 50mL/min room temperaturewater
flowing in thedirectionof the arrow.
0.49”
(1.24cm)
1.09”
(2.77cm)
0.49”
(1.24cm)
1.04”
(2.64cm)
0.49”
(1.24cm)
1.04”
(2.64cm)
0.49”
(1.24cm)
1.09”
(2.77cm)
0.62”
(1.57cm)
0.93”
(2.36cm)
PartNo.
Description
CrackingPressure
STANDARD1/4-28 INLINECHECKVALVES
CV-3301
Inlet CheckValve, 1/4-28FB,M to 1/4-28FB, F*
15psi (1bar)
CV-3302
Outlet CheckValve, 1/4-28FB,M to 1/4-28FB, F*
15psi (1bar)
CV-3315
Inlet CheckValve, 1/4-28FB,M to 1/4-28FB, F*
3psi (0.2bar)
CV-3316
Outlet CheckValve, 1/4-28FB,M to 1/4-28FB, F*
3psi (0.2bar)
NONMETALLIC10-32MICRO-VOLUME INLINECHECKVALVE
CV-3500
Inlet/Outlet CheckValve, 10-32C, F to10-32C, F*
8psi (0.6bar)
*M=Male (external) threads; F=Female (internal) threads;C=Coned; FB=Flat-Bottom
CHECKVALVES&
PRESSUREREGULATORS
149
InlineCheck Valves
