Application of Standards
① Design and manufacture of cast steel clamped check valve according to JB/T 8937, GB/T12224 ② Design and manufacture of forged steel clamped check valve according to JB/T7746
③ Inspection and testing shall comply with GB/T 13927 and GB/T 26480.
④ The paired flange connection complies with the standards JB/T79, HG/T20592, and GB/T9113.
⑤ Structure length: JB/T8937
⑥ Temperature and pressure rating: GB/T12224
Product specifications
① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN15 to DN250
③ Pressure range: 1.0MPa~16.0MPa
④ Operating temperature: -29℃~+600℃
⑤ Drive mode: Automatic.
⑥ Application scope: It can be used in water supply, sewage, construction, food, electric power, medicine, metallurgy, light textile, energy and other fluid pipelines to prevent the medium from backflow.
Main Components Material
| Material | |||
| Order number | Part name | Stainless steel | Cast steel |
| 1 | Valve body | CF8 | WCB |
| 2 | Valve clack | CF8 | WCB+STL |
| 3 | Spring | 304 | 304 |
| 4 | Support | CF8 | WCB |
Key size measurements
PN1.6-4.0MPa
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
| L | 16 | 19 | 22 | 28 | 31.5 | 40 | 46 | 50 | 60 | 90 | 106 | 140 | 160 |
| D | 52 | 62 | 72 | 83 | 93 | 109 | 129 | 144 | 164 | 194 | 220 | 275 | 332 |
| D1 | 15 | 19 | 24 | 31 | 39 | 48 | 63 | 78 | 98 | 123 | 148 | 198 | 248 |
PN6.4-16.0MPa
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
| L | 25 | 31.5 | 35.5 | 40 | 45 | 56 | 63 | 71 | 80 | 110 | 125 | 160 | 180 |
| D | 62 | 73 | 83 | 89 | 104 | 114 | 138 | 148 | 174 | 211 | 248 | 310 | 362 |
| D1 | 15 | 19 | 24 | 31 | 39 | 48 | 63 | 78 | 98 | 123 | 148 | 198 | 248 |
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