only flows in one direction. VTY Check valves can be used to prevent backflow that could damage pumps and cause water hammer. They are used in industries like liquid cooling, food processing, cosmetics, biopharmaceuticals, and fine chemicals, and are also used in the production processes of beverages, beer, and oils.
Size specifications range from DN25 to DN250 (1" to 10")
Sturdy and compact structure
Connection methods: welding, clamp, threaded
The valve opens when the fluid pressure exceeds the pressure applied by the spring. When the pipeline pressure is released and the pressure balances, the valve closes. Higher back pressure in the pipeline also causes the valve to close. When two pumps are running in parallel, check valves are installed at the outlet of each pump to prevent backflow when a pump stops.
|
Valve body, flange |
AIS1 304 (Forged) |
|
Spring |
AIS1 304 |
|
Other stainless steel parts |
AIS1 304 |
|
Gasket |
EPDM according to FDA 177.2600 |
|
Internal Surface Finishes |
Ra≤ 0.8μm |
|
External Surface Finishes |
Machined, Ra≤ 1.6μm |
•Valve body, flange: AISI 316L
•Other parts: AISI 316L
•Connection type: Welding, clamp, threaded
•Connection standards: DIN11850, SMS, 3A, ISO, GB
•Seals: NBR, FPM, PTFE
|
Working Temperature |
-10℃ to +120℃ (EPDM) 14℉ to 248℉ |
|
Maximum Working Pressure |
12 bar (DN25 - DN100) 174 PSI (DN 1"-DN 4") |
|
0.3 bar(DN25;1") |
|
|
0.2 bar(DN32-40;1 1/2") |
|
|
0.1 bar(DN50-200; 2"-10") |
|
No. |
Qty |
Name |
Code |
Material |
|
1 |
1 |
Upper valve body |
ZH4-133-000-01 |
304/316L |
|
2 |
2 |
O-ring |
- |
EPDM |
|
3 |
1 |
clamp |
13MHH |
304 |
|
4 |
1 |
mounting base |
ZH4-133-000-03 |
304/316L |
|
5 |
1 |
spring |
ZH4-133-000-06 |
304/316L |
|
6 |
2 |
valve core |
ZH4-133-000-04 |
304/316L |
|
7 |
2 |
sealing ring |
ZH4-133-000-05 |
EPDM |
|
8 |
2 |
lower valve body |
ZH4-133-000-02 |
304/316L |
| SI | A | B | D | L |
|---|---|---|---|---|
| DN10 | 13 | 10 | 32 | 67 |
| DN15 | 19 | 16 | 32 | 67 |
| DN20 | 23 | 20 | 50 | 97 |
| DN25 | 29 | 26 | 50 | 97 |
| DN32 | 35 | 32 | 55 | 97 |
| DN40 | 41 | 38 | 64 | 97 |
| DN50 | 53 | 50 | 78 | 97 |
| DN65 | 70 | 66 | 95 | 102 |
| DN80 | 85 | 81 | 120 | 112 |
| DN100 | 104 | 100 | 143.5 | 118 |
| DN125 | 129 | 125 | 168 | 183 |
| DN150 | 154 | 150 | 218 | 233.5 |
| 1/2" | 12.7 | 9.4 | 32 | 67 |
| 3/4" | 19.1 | 15.8 | 32 | 67 |
| 1" | 25.4 | 22.4 | 50 | 97 |
| 11/4" | 31.8 | 28.8 | 55 | 97 |
| 11/2" | 38.1 | 35.1 | 63 | 97 |
| 2" | 50.8 | 47.8 | 78 | 97 |
| 21/2" | 63.5 | 60.2 | 95 | 102 |
| 3" | 76.2 | 72.9 | 105 | 108 |
| 4" | 101.6 | 97.6 | 143.5 | 118 |
| 5" | 127 | 121.4 | 168 | 183 |
| 6" | 152.4 | 146.8 | 218 | 233.5 |
| SIZE | A | B | D | L |
|---|---|---|---|---|
| DN10 | 10 | 34 | 32 | 67 |
| DN15 | 16 | 34 | 32 | 67 |
| DN20 | 20 | 34 | 50 | 97 |
| DN25 | 26 | 50.5 | 50 | 97 |
| DN32 | 32 | 50.5 | 55 | 97 |
| DN40 | 38 | 50.5 | 64 | 97 |
| DN50 | 50 | 64 | 78 | 97 |
| DN65 | 66 | 91 | 95 | 102 |
| DN80 | 81 | 106 | 120 | 112 |
| DN100 | 100 | 119 | 143.5 | 118 |
| DN125 | 125 | 155 | 168 | 183 |
| DN150 | 150 | 183 | 218 | 233.5 |
| 1/2" | 9.4 | 25.2 | 32 | 67 |
| 3/4" | 15.8 | 25.2 | 32 | 67 |
| 1" | 22.4 | 50.5 | 50 | 97 |
| 11/4" | 28.8 | 50.5 | 55 | 97 |
| 11/2" | 35.1 | 50.5 | 63 | 97 |
| 2" | 47.8 | 64 | 78 | 97 |
| 21/2" | 60.2 | 77.5 | 95 | 102 |
| 3" | 72.9 | 91 | 105 | 108 |
| 4" | 97.6 | 119 | 143.5 | 118 |
| 5" | 121.4 | 144.5 | 168 | 183 |
| 6" | 146.8 | 166.8 | 218 | 233.5 |
| SIZ | A | B | E | L |
|---|---|---|---|---|
| DN25 | 29 | 26 | Rd52x1/6" | 97 |
| DN32 | 35 | 32 | Rd58x1/6" | 97 |
| DN40 | 41 | 38 | Rd65x1/6" | 97 |
| DN50 | 53 | 50 | Rd78x1/6" | 97 |
| DN65 | 70 | 66 | Rd95x1/6" | 102 |
| DN80 | 85 | 81 | Rd110x1/4" | 112 |
| DN100 | 104 | 100 | Rd130x1/4" | 118 |
| 25 | 25.4 | 22.4 | Rd40x1/6" | 97 |
| 32 | 31.8 | 28.8 | Rd48x1/6" | 97 |
| 38 | 38.1 | 35.1 | Rd60x1/6" | 97 |
| 51 | 50.8 | 47.8 | Rd70x1/6" | 97 |
| 63.5 | 63.5 | 60.2 | Rd85x1/6" | 102 |
| 76 | 76.2 | 72.9 | Rd98x1/6" | 108 |
| 101.6 | 101.6 | 97.6 | Rd132x1/6" | 118 |
| SI | A | B | D | L |
|---|---|---|---|---|
| DN25 | 29 | 26 | 48 | 81 |
| DN32 | 35 | 32 | 60 | 84 |
| DN40 | 41 | 38 | 71 | 89 |
| DN50 | 53 | 50 | 86 | 96 |
| DN65 | 70 | 66 | 104 | 111 |
| DN80 | 85 | 81 | 129 | 144 |
| DN100 | 104 | 100 | 150 | 167 |
| 1" | 25.4 | 22.4 | 48 | 81 |
| 11/4" | 31.8 | 28.8 | 60 | 84 |
| 11/2" | 38.1 | 35.1 | 71 | 89 |
| 2" | 50.8 | 47.8 | 86 | 96 |
| 21/2" | 63.5 | 60.2 | 104 | 111 |
| 3" | 76.2 | 72.9 | 130 | 144 |
| 4 | 101.6 | 97.6 | 150 | 167 |
| SI | A | B | E | L | ||
|---|---|---|---|---|---|---|
| DN25 | 29 | 26 | Rd52x1/6" | 81 | ||
| DN32 | 35 | 32 | Rd58x1/6" | 84 | ||
| DN40 | 41 | 38 | Rd65x1/6" | 89 | ||
| DN50 | 53 | 50 | Rd78x1/6" | 96 | ||
| DN65 | 70 | 66 | Rd95x1/6" | 111 | ||
| DN80 | 85 | 81 | Rd110x1/4" | 144 | ||
| DN100 | 104 | 100 | Rd130x1/4" | 167 | ||
| 25 | 25.4 | 22.4 | Rd40x1/6" | 81 | ||
| 32 | 31.8 | 28.8 | Rd48x1/6" | 84 | ||
| 38 | 38.1 | 35.1 | Rd60x1/6" | 89 | ||
| 51 | 50.8 | 47.8 | Rd70x1/6" | 96 | ||
| 63.5 | 63.5 | 60.2 | Rd85x1/6" | 111 | ||
| 76 | 76.2 | 72.9 | Rd98x¹/6" | 144 | ||
| 101.6 | 101.6 | 97.6 | Rd132x1/6" | 167 | ||
| SIZE | A | B | D | L | ||
|---|---|---|---|---|---|---|
| DN25 | 29 | 26 | 87 | 92 | ||
| DN40 | 41 | 38 | 97 | 92 | ||
| DN50 | 53 | 50 | 110 | 112 | ||
| DN65 | 70 | 66 | 127 | 122 | ||
| DN80 | 85 | 81 | 142 | 147 | ||
| DN100 | 104 | 100 | 162 | 152 | ||
| 1" | 25.4 | 22.4 | 87 | 92 | ||
| 11/2" | 38.1 | 35.1 | 110 | 92 | ||
| 2" | 50.8 | 47.8 | 127 | 112 | ||
| 21/2" | 63.5 | 60.2 | 142 | 122 | ||
| 3" | 76.2 | 72.9 | 162 | 147 | ||
| 4" | 101.6 | 97.6 | 172 | 152 | ||
| SI | A | B | D | |
|---|---|---|---|---|
| DN125 | 129 | 125 | 200 | 174 |
| DN150 | 154 | 150 | 227 | 188 |
| DN200 | 204 | 200 | 296 | 210 |
| DN250 | 254 | 250 | 366 | 208 |
| 5" | 127 | 122.8 | 200 | 174 |
| 6" | 152.4 | 146.8 | 227 | 188 |
| 8" | 203.2 | 197.6 | 296 | 210 |
| 10" | 254 | 247.2 | 366 | 208 |
| SI | A | B | D | |
|---|---|---|---|---|
| DN125 | 144.5 | 125 | 200 | 174 |
| DN150 | 166.8 | 150 | 227 | 188 |
| DN200 | 217.7 | 200 | 296 | 210 |
| DN250 | 268.5 | 250 | 366 | 208 |
| 5" | 144.5 | 122.8 | 200 | 174 |
| 6" | 166.8 | 146.8 | 227 | 188 |
| 8" | 217.7 | 197.6 | 296 | 210 |
| 10" | 268.5 | 247.2 | 366 | 208 |
Address
No.729, Road 3, Binhai Industrial Zone, Wenzhou, Zhejiang, China
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