Product Overview of Stainless Steel Vertical Check Valve H42W:
Product model: H42W
Nominal diameter: DN40 ~ 200mm
Nominal pressure: PN1.6~2.5MPa
Applicable temperature: ≤200
Applicable medium: corrosive medium, weak corrosive medium
Main material: chromium nickel titanium stainless steel, chromium nickel molybdenum titanium stainless steel
Design standard: API6D, JB/T8937, API594
Structure length: API594, JB/T8937
Connection standard: ASME B16.5, GB/T 9113, JB/T 79, HG/T 20592
Pressure test: API 598, GB/T 13927, JB/T 9092
Pressure-temperature rating: ASME B16.34, GB/T12224
Product Details of of Stainless Steel Vertical Check Valve H42W:
Product Description of Stainless Steel Vertical Check Valve H42W:
H42W Stainless Steel Vertical Check Valve produced by TopVal is normally closed, due to the pipeline inlet medium pressure, and overcome the spring resistance to open the valve. When the inlet side of the medium pressure is lower than the outlet end, the spring will push the spool to the valve seat to close the valve to prevent the media countercurrent, it played the role of check. The valve due to the use of spring support spool, so the use of vertical or horizontal installation can be installed.
Main Materials of of Stainless Steel Vertical Check Valve H42W:
| model | PN | Working pressure / Mpa | Applicable temperature / ℃ | Suitable media | material | ||
| Body, disc | Pilot valve | Sealing surface | |||||
| H42W-16P | 16 | 1.6 | ≤200 | Corrosive media | Chrome nickel-titanium stainless steel | Chrome nickel-titanium stainless steel | Chrome nickel-titanium stainless steel |
| H42W-25R | 25 | 2.5 | Weak corrosive medium | Chromium nickel molybdenum titanium stainless steel | Chromium nickel molybdenum titanium stainless steel | Chromium nickel molybdenum titanium stainless steel | |
Performance Specifications of Stainless Steel Vertical Check Valve H42W:
| Technical Parameters | Pressure Level | ||||||||||
| 16 | 20 | 25 | 32 | 35 | 40 | 45 | 50 | 60 | 70 | ||
| Working pressure (Mpa) | ≤16 | ≤20 | ≤25 | ≤32 | ≤35 | ≤40 | ≤45 | ≤50 | ≤60 | ≤70 | |
| Test pressure (M) | strength | 24 | 30 | 37.5 | 48 | 52.5 | 60 | 67.5 | 75 | 90 | 105 |
| seal | 17.6 | 22 | 27.5 | 35.2 | 38.5 | 44 | 49.5 | 55 | 66 | 77 | |
Main Dimensions of Stainless Steel Vertical Check Valve H42W 1.6Mpa

| model | DN | The main connection size size | |||||||||
| L | D | D 1 | D 2 | D 6 | b | f | f 1 | Z-φd | H | ||
| H42W-16PH42W-16R | 40 | 200 | 145 | 110 | 85 | - | 16 | 2 | - | 4-18 | 95 |
| 50 | 230 | 160 | 125 | 100 | - | 16 | 2 | - | 4-18 | 105 | |
| 65 | 290 | 180 | 140 | 120 | - | 18 | 2 | - | 4-18 | 120 | |
| 80 | 310 | 195 | 165 | 135 | - | 20 | 3 | - | 8-18 | 130 | |
| 100 | 350 | 215 | 180 | 155 | - | 20 | 3 | - | 8-18 | 140 | |
| 125 | 400 | 245 | 210 | 185 | - | 22 | 3 | - | 8-12 | 155 | |
| 150 | 480 | 280 | 240 | 210 | - | 24 | 3 | - | 8-23 | 180 | |
| 200 | 600 | 335 | 295 | 265 | - | 26 | 3 | - | 12-23 | 215 | |
2.5Mpa
| model | DN (mm) | Size (mm) | ||||||||
| L 1 | L 2 | L 3 | D | D1 | D2 | b | f | Z-Φ | ||
| H42W-25PH42W-25R | 15 | - | 85 | 85 | 95 | 65 | 45 | 16 | - | 4-Φ14 |
| 20 | - | 95 | 95 | 105 | 75 | 55 | 16 | - | 4-Φ14 | |
| 25 | - | 100 | 105 | 115 | 85 | 65 | 16 | - | 4-Φ14 | |
| 32 | - | 105 | 150 | 135 | 100 | 78 | 16 | - | 4-Φ14 | |
| 40 | - | 115 | 160 | 145 | 110 | 88 | 18 | - | 4-Φ14 | |
| 50 | 140 | 125 | 170 | 160 | 125 | 100 | 20 | 3 | 4-Φ14 | |
| 65 | 160 | 145 | 180 | 180 | 145 | 120 | 22 | 3 | 8-Φ18 | |
| 80 | 185 | 155 | 200 | 195 | 160 | 135 | 22 | 3 | 8-Φ18 | |
| 100 | 210 | 210 | 210 | 230 | 190 | 160 | 24 | 3 | 8-Φ23 | |
| 125 | - | 275 | 275 | 275 | 220 | 188 | 28 | 3 | 8-Φ25 | |
| 150 | 300 | 225 | 300 | 300 | 250 | 218 | 30 | 3 | 8-Φ25 | |
| 200 | 380 | 380 | 380 | 360 | 310 | 278 | 34 | 3 | 12-Φ25 | |