149
Check Valves &Pressure Regulators
Standard1/4-28 InlineCheck Valves
Add back-fow protection to any 1/4-28 fat-bottom port
15 psi (1 bar) and 3 psi (0.2 bar) cracking pressure versions
Excellent chemical resistance
Materials of construction: PEEK
™
; PCTFE; perfuoroelastomer;
PTFE (CV-3301 and CV-3302); stainless steel (CV-3301 and CV-3302);
or gold-plated stainless steel (CV-3315 and CV-3316)
Connect these Upchurch
Scientifc
®
Inline Check Valves
to any 1/4-28 flat-bottom
port. Then thread your 1/4-28
flat-bottom fitting into the
check valve to connect the
tubing. Once installed, the
spr ing-actuated seal ing
system eliminates back fow,
helping to prevent upstream
contamination or damage. In
addition, the unique design
of this product eliminates the additional tubing cuts and connections
required to install conventional inline check valves.
Part No. Description
Cracking Pressure
standard 1/4-28 Inline Check Valves
CV-3301 Inlet Check Valve, 1/4-28 FB, M to 1/4-28 FB, F*
15 psi (1 bar)
CV-3302 Outlet Check Valve, 1/4-28 FB, M to 1/4-28 FB, F* 15 psi (1 bar)
CV-3315 Inlet Check Valve, 1/4-28 FB, M to 1/4-28 FB, F *
3 psi (0.2 bar)
CV-3316 Outlet Check Valve, 1/4-28 FB, M to 1/4-28 FB, F * 3 psi (0.2 bar)
Nonmetallic 10-32 micro-volume inline check valve
CV-3500 Inlet/Outlet Check Valve, 10-32 C, F to 10-32 C, F* 8 psi (0.6 bar)
* M = Male (external) threads; F = Female (internal) threads; C = Coned; FB = Flat-Bottom
CV-3315
Standard, Inlet
1/4-28 FB Male to 1/4-28 FB Female
3 psi (0.2 bar) cracking pressure
0.49”
(1.24 cm)
1.09”
(2.77 cm)
CV-3301
Standard, Inlet
1/4-28 FB Male to 1/4-28 FB Female
15 psi (1 bar) cracking pressure
0.49”
(1.24 cm)
1.04”
(2.64 cm)
0.49”
(1.24 cm)
1.04”
(2.64 cm)
CV-3302
Standard, Outlet
1/4-28 FB Male to 1/4-28 FB Female
15 psi (1 bar) cracking pressure
CV-3316
Standard, Outlet
1/4-28 FB Male to 1/4-28 FB Female
3 psi (0.2 bar) cracking pressure
0.49”
(1.24 cm)
1.09”
(2.77 cm)
Nonmetallic 10-32Micro-Volume Inline
Check Valve
Cracking pressure of 8 psi (0.6 bar)
Excellent chemical resistance
Materials of construction: PEEK and perfuoroelastomer,
suitable for biological applications
With a swept volume of only 7.4 µL, theUpchurch Scientifc InlineMicro-
Volume Check Valve is perfect for applications where low fow path
volume is critical, such as delivery to lab-on-a-chip, single-cell analysis
and micro- or nano-LC post-column derivitization. Once installed, this
check valve helps prevent back fowand the potential for contamination
or damage to sensitive upstream equipment.
0.62”
(1.57 cm)
0.93”
(2.36 cm)
CV-3500
Micro-Volume Inline
10-32 C Female to 10-32 C Female
Inline Check Valves
Related Products
1/4-28 Inline Check Valves and Non-Metallic Check Valves with 1/4-28
fat-bottom ports (next page) can be used with any 1/4-28 Flangeless,
Super Flangeless
™
and VacuTight
™
ftting on pages 21 – 28 of the
Fittings Chapter.
Micro-Volume Inline Check Valves and Non-Metallic Check Valves with
10-32 coned ports (next page) can be used with any 10-32 polymer
Fingertight or SealTight
™
ftting on pages 11-15. Connect capillary
tubing using the optional ferrules listed on page 15 or the NanoTight
™
Fittings and Tubing Sleeves on page 17.
Check valves are specifed by:
Cracking Pressure:
the pressure required for the valve to open
in the direction of the arrow
Maximum Pressure:
the maximum pressure the valve can experience
in the reverse direction without leaking backwards
Back Pressure Created:
the amount of back pressure generated
by the check valve with 50 mL/min room temperature water
fowing in the direction of the arrow
Note
Top Seller
See starred products
Swept
Volume Thru-Hole
Max. Pressure
Rating
Back Pressure
Created
Cracking Pressure
Tolerance
Standard 1/4-28 FB
CV-3301, CV-3302 20 µL 0.020” (0.50 mm) 2,000 psi (138 bar) 45 psi (3.1 bar) ± 5 psi (0.34 bar)
CV-3315, CV-3316 16 µL 0.020” (0.50 mm) 2,000 psi (138 bar) 10 psi (0.7 bar) ± 1.5 psi (0.10 bar)
Nonmetallic 10-32 Coned Micro-Volume
CV-3500
7.4 µL 0.010” (0.25 mm) 3,000 psi (207 bar) 25 psi (1.7 bar) ± 5 psi (0.34 bar)
Specifcations
FOR ORDERING & DISTRIBUTOR INFORMATION +1 800 426 0191 • +1 360 679 2528 • www.idex-hs.com