Applications
CV4 sanitary check valve is used in stainless steel pipe systems to prevent backward flow of fluids.
Operating Principle
When the pressure of lower valve stem exceeds that of upper valve stem and spring force, CV4 sanitary check valve is open. When the pressure of upper valve stem equals that of lower valve stem, CV4 sanitary check valve is closed. Greater reverse pressure acting on the valve stem causes the valve to close.
CV4 sanitary check valve has two configurations.
CV4-1 sanitary check valve adopts clamp connection method. It is affordable and widely used in food industry.
CV4-2 sanitary check valve consists of a thickened valve body and two flanges, which is easy to install and remove.
Correct Installation Method
Pressure Drop/Capacity Comparison Diagram
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Technical Data
| Metal material | Product wetted | 304L/316L (DIN-1.4307/1.4404) forged |
|---|---|---|
| Non-product wetted | 304 (DIN-1.4301) | |
| We can provide EN 10204 3.1B certificate. | ||
| Seal material | Standard | EPDM |
| Options | NBR, FPM, Silicone | |
| All seal materials comply with FDA 177.2600. | ||
| Temperature | Continuous working temperature | -20°C ~ +135°C (EPDM) |
| Sterilization temperature | 150°C (Max 20min) | |
| Pressure | Opening pressure | 0.08bar |
| Max working pressure | 10bar | |
| Surface treatment | Internal surface | Ra≤0.8µm |
| External surface | Ra≤1.6µm | |
| Connection | Connection standards | Welding end: DIN 11850 series 2 |
| Welding end: Inch pipe diameter standard | ||
| Connection methods: welding, thread, clamp, flange | ||
CV4-1 Sanitary Check Valve
Clamp end-male threaded end
Dimensions (mm)
| 3A | ||||
|---|---|---|---|---|
| Size | A | B | C | D |
| 1.0" 1.5" |
22.1 34.8 |
37.13 ACME 8TPI 50.65 ACME 8TPI |
46 46 |
67 67 |
| 2.0" 2.5" |
47.5 60.2 |
64.16 ACME 8TPI 77.67 ACME 8TPI |
47 50 |
68 71 |
| 3.0" 4.0" |
72.9 97.38 |
91.19 ACME 8TPI 119.25 ACME 6TPI |
51 60 |
72 72 |
| DIN | ||||
| DN25 DN32 |
26 32 |
Rd52×1/6" Rd58×1/6" |
60 60 |
81 81 |
| DN40 DN50 |
38 50 |
Rd65×1/6" Rd78×1/6" |
60 61 |
81 82 |
| DN65 DN80 |
66 81 |
Rd95×1/6" Rd110×1/4" |
63 63 |
84 84 |
| DN100 | 100 | Rd130×1/4" | 68 | 89 |
| SMS | ||||
| 25 38 |
22.5 35.5 |
RD40×1/6" RD60×1/6" |
53 58 |
74 79 |
| 51 63.5 |
48.5 60.5 |
RD70×1/6" RD85×1/6" |
58 62 |
79 83 |
| 76 101.6 Min |
72.9 97.6 |
RD98×1/6" RD125×1/4" |
66 72 |
83 83 |
| 101.6 Max | 97.6 | RD132×1/6" | 72 | 83 |
Clamp end-welding end
Dimensions (mm)
| Inch | ||||
|---|---|---|---|---|
| Size | A | B | C | D |
| 1/2" 3/4" |
9.4 15.75 |
12.7 19.05 |
28.5 28.5 |
39.5 39.5 |
| 1.0" 1.5" |
22.1 34.8 |
25.4 38.1 |
38 38 |
59 59 |
| 2.0" 2.5" |
47.5 60.2 |
50.8 63.5 |
38 38 |
59 59 |
| 3.0" 4.0" |
72.9 97.38 |
76.2 101.6 |
42 44 |
59 55 |
| DIN | ||||
| DN20 DN25 |
20 26 |
23 29 |
28.5 38 |
39.5 59 |
| DN32 DN40 |
32 38 |
35 41 |
38 38 |
59 59 |
| DN50 DN65 |
50 66 |
53 70 |
38 38 |
59 59 |
| DN80 DN100 |
81 100 |
85 104 |
42 44 |
59 55 |
Clamp end-clamp end
Dimensions (mm)
| 3A / SMS / ISO | ||||
|---|---|---|---|---|
| Size | A | B | C | D |
| 1/2" 3/4" |
9.4 15.75 |
25.2 25.2 |
28.5 28.5 |
39.5 39.5 |
| 1.0" 1.5" |
22.1 34.8 |
50.5 50.5 |
38 38 |
59 59 |
| 2.0" 2.5" |
47.5 60.2 |
64 77.5 |
38 38 |
59 59 |
| 3.0" 4.0" |
72.9 97.38 |
91 119 |
42 44 |
59 55 |
| DIN | ||||
| DN20 DN25 |
20 26 |
34 50.5 |
28.5 38 |
39.5 59 |
| DN32 DN40 |
32 38 |
50.5 50.5 |
38 38 |
59 59 |
| DN50 DN65 |
50 66 |
64 91 |
38 38 |
59 59 |
| DN80 DN100 |
81 100 |
106 119 |
42 44 |
59 55 |
CV4-2 Sanitary Check Valve
Dimensions (mm)
| Inch | ||||
|---|---|---|---|---|
| Size | A | B | C | H |
| 1.0" 1.5" |
22.1 34.8 |
25.4 38.1 |
87 97 |
90 90 |
| 2.0" 2.5" |
47.5 60.2 |
50.8 63.5 |
110 127 |
110 120 |
| 3.0" 4.0" |
72.9 97.38 |
76.2 101.6 |
142 162 |
145 150 |
| DIN | ||||
| DN25 DN32 |
26 32 |
29 35 |
87 92 |
90 90 |
| DN40 DN50 |
38 50 |
41 53 |
97 110 |
90 110 |
| DN65 DN80 |
66 81 |
70 85 |
127 142 |
120 145 |
| DN100 | 100 | 104 | 162 | 150 |
