Application of Standards
① The design and manufacture of cast steel vertical check valves comply with GB/T12235 and GB/T12224, while those of forged steel vertical check valves follow JB/T 7746.
③ Inspection and testing shall comply with GB/T 13927 and GB/T 26480.
④ Flange connections comply with the standards JB/T79, HG/T20592, and GB/T9113.
⑤ Welded end: GB/T12224
⑥ butt and socket welding end: JB/T 7746
⑦ Structure length: GB/T12221
⑧ Temperature and pressure rating: GB/T12224
Product specifications
① Main material: carbon steel, stainless steel, alloy steel
② Nominal diameter: DN15 to DN400
③ Pressure range: 1.0MPa~16.0MPa
④ Operating temperature: -29℃~+600℃
⑤ Drive mode: Automatic.
⑥ Application scope: Suitable for water supply, sewage treatment, construction, food processing, and power generation.
The vertical fluid pipelines in medicine, metallurgy, light textile, energy and other fields are used to prevent the medium from backflow.
Main Components Material
| Material | |||
| Order | Part name | ||
| number | Stainless steel | Cast steel | |
| 1 | Valve body | CF8 | WCB |
| 2 | Valve clack | 304 | 2Cr13 |
| 3 | Valve stem | F304 | 2Cr13 |
| 4 | Spacer | CF8 | WCB |
| 5 | Dog screw | 304 | 25 |
Main Dimensions Data
PN1.6-4.0MPa/150Lb
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
| L | 85 | 95 | 105 | 150 | 160 | 170 | 180 | 200 | 210 | 275 | 300 | 380 | 425 |
PN6.4-10.0MPa/300Lb
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 |
| L | 90 | 100 | 110 | 160 | 170 | 180 | 190 | 220 | 260 | 300 | 340 | 390 |
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