Check Valves for Vacuum Systems
New and Improved Check Valves by ANVER – One Piece Casing for Leak Proof Construction
Competitively priced and used in virtually every vacuum application shown on our website

Vacuum Check Valves Improve Vacuum System Performance


These high-quality Check Valves are specially manufactured in the U.S.A. by ANVER, for ANVER lifting systems. Versatile, one-way Check Valves work with nearly all of ANVER’s vacuum applications where vacuum loss prevention is required. ANVER Check Valves can operate in any position with the highest flow available making them the best overall value for mid-range vacuum level systems in the industry.

Features            

  • One-piece, airtight, leak-proof design for years of trouble free service.
  • Sturdy, anodized aluminum body is compact and will not crack like other material.
  • Optimum flow design for use with all vacuum applications and very large flow rates (Cv).
  • Spring loaded to operate in any orientation.
  • Low cracking pressure allows you to get the most performance from your pumps.
  • Precision internal plastic valve with stainless steel springs eliminates corrosion from water contamination.

Specifications

  • Maximum pressure: 230 psi
  • Temperature: 0° to 200°F (-18° to 93°C)
  • Internal seals: Nitrile Butadiene Rubber (NBR)
  • Body: Anodized aluminum or Stainless Steel (SS)
  • Internals: Acetal plastic
  • Spring: Stainless steel

 

Tips

  • On the the 3/8″ check valve, we use a 1/2″ check valve with adaptors to allow for a maximized flow rate (Cv). The reduced restriction is worth the minimal added cost of adapters. (E.g., 1″ is a 1 ¼” with adaptors, and 1 ½” is a 2″ with adaptors.)
  • The main restriction of a vacuum system is at the check valve. By using a smaller pump, the flow will increase at this point, thereby making it the most economical way to increase a vacuum system’s performance.
  • Use a filter prior to the check valve to eliminate debris from clogging the valve.

 

RFQ 3D Content Central TraceParts

Product Photo
(Click to
Enlarge)

Part
Number

Pipe
Thread

Height
in.
(mm)

Hex Size
in.
(mm)

Cracking Pressure*

Flow Rate
(Approx. Cv)

Flow Rate
(Approx.
SCFM)**
in. Hg
(kPa)

PSI ± 0.14

[Unless Specified]

3D CV14F14F CV14F14F
Aluminum
1/4″ NPT (Female)
x
1/4″ NPT (Female)
1.38
(35)
.709
(18)
0.58
(-1.96)
0.28 1.15 8.22
3D CV14F14F CV14F14FSS
Stainless Steel
(Special Order)
1/4″ NPT (Female)
x
1/4″ NPT (Female)
1.38
(35)
.709
(18)
0.58
(-1.96)
0.28 1.15 8.22
3D CV38F38F CV38F38F
Aluminum
3/8″ NPT (Female)
x
3/8″ NPT (Female)
1.00
(25.4)
0.60
(-2.03)
0.30 4.7 33.63
3D FB12X38 FB12X38
Aluminum
Adapter used with
CV12F12F (below)
to make CV38F38F (above)
1/2” NPT (Male)

3/8” NPT (Female)
0.56
(14.3)
3D CV12M12F
Aluminum
1/2″ NPT (Male)
x
1/2″ NPT (Female)
1.38
(35)
1.00
(25.4)
0.60
(-2.03)
0.30 4.7 33.63
3D CV12M12FSS
Stainless Steel
(Special Order)
1/2″ NPT (Male)
x
1/2″ NPT (Female)
1.38
(35)
1.00
(25.4)
0.60
(-2.03)
0.30 4.7 33.63
    CV12M12F-G
Aluminum
1/2″ G (Male)
x
1/2″ G (Female)
1.38
(35)
1.06
(27)
0.60
(-2.03)
0.30 4.7 33.63
3D CV12F12F CV12F12F
Aluminum
1/2” NPT (Female)
x
1/2” NPT (Female)
2.13
(54)
1.00
(25.4)
0.60
(-2.03)
0.30 4.7 33.63
3D CV12F12F CV12F12FSS
Stainless Steel
(Special Order)
1/2” NPT (Female)
x
1/2” NPT (Female)
2.13
(54)
1.00
(25.4)
0.60
(-2.03)
0.30 4.7 33.63
3D CV34F34F
Aluminum
3/4″ NPT (Female)
x
3/4″ NPT (Female)
2.75
(70)
1.18
(30)
0.52
(-1.76)
0.26 10.8 77.27
3D CV34F34FSS
Stainless Steel
(Special Order)
3/4″ NPT (Female)
x
3/4″ NPT (Female)
2.75
(70)
1.18
(30)
0.52
(-1.76)
0.26 10.8 77.27
3D CV114F114F
Aluminum
1 1/4″ NPT (Female)
x
1 1/4″ NPT (Female)
3.38
(85.9)
2.00
(51.8)
0.14
(-0.47)
0.07 +0.14/-0.05 28 200.33
3D CV114F114FSS
Stainless Steel
(Special Order)
1 1/4″ NPT (Female)
x
1 1/4″ NPT (Female)
3.38
(85.9)
2.00
(51.8)
0.14
(-0.47)
0.07 +0.14/-0.05 28 200.33
3D CV2F2F
Aluminum
2″ NPT (Female)
x
2″ NPT (Female)
5.00
(127.0)
0.35
(-1.19)
0.17 63 450.75
3D CV2F2FSS
Stainless Steel
(Special Order)
2″ NPT (Female)
x
2″ NPT (Female)
5.00
(127.0)
0.35
(-1.19)
0.17 63 450.75

 

Note: These check valves were specifically designed and built for ANVER’s vacuum lifting systems, and have been proven in actual vacuum system installations. Ordinary check valves designed for compressed air systems are unsuitable for use in vacuum systems and can adversely affect your system.

*Cracking Pressure refers to the minimum pressure differential needed between the inlet and outlet of the valve to lift the plunger off its seat to generate flow.

**Flow Coefficient {Cv} is determined by the flow of water through a valve at 60°F in US gallon/minute at a pressure drop of 1 lb./in2. Cv is a relative value that allows comparison between different valves. The actual flow rate in SCFM is dependent on other variables within the application. Since water is a non-compressible liquid and air is a compressible gas, the inlet and outlet pressure are needed to determine actual flow of air since the density of air changes with pressure.

General equation for air flow when Cv is known is:
SCFM = (Cv x (∆P x ((Pin-∆P) + 14.7))1/2) ÷ 1.024
Where Pin = Inlet Pressure & ∆P = Pressure Differential

Flow rates shown are based on the formula for air flow to atmosphere calculated by:
SCFM = Cv x ((((PSIG+14.7) x 0.46) x ((PSIG+14.7)*0.54))1/2 ÷ 1.024
Where gauge pressure, PSIG, is assumed to be negligible.