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نسخه متنی
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nnnn
nnnn
nnnn
NAF-Check Valves
nnnnDN 40-1000 mm, PN 10-100
nnnnFLOWSERVE
nnnnGESTRA
nnnnNAF-Check
nnnnDN 40-1000 mm
nnnnApplication
nnnnMaterials
nnnnDesign | Part designa- tion | Nominal size DN [mm] | Materials EN/ASME | Equivalent |
Steel | Body | 40-50 | EN 1.4404 | ASME SA 479M 316 L |
65 - 250 | EN 1.4408/CF 8M | |||
300- 1000 | EN 1.0619 | ASTMA216WCC | ||
Flap | 40 + 50 | ASTM A487 Gr CA6NM | 1.4435 | |
65-1000 | EN 1.4317 | SS 2387 | ||
Stainless steel | Body | 40-50 | EN 1.4404 | ASME SA 479M 316 L |
65-1000 | EN 1.4408/CF 8M | |||
Flap | 40-1000 | EN 1.4470 | SS 2324 | |
High-tempe- rature steel | Body | 65 - 400 | EN 1.7357 | ASTM A 217 WC 6 |
Flap | 65 - 400 | EN 1.7357 | ASTM A 217 WC 6 |
Pressure/Temperature Ratings
nnnnfor liquids, gases, vapours, aggressive fluids and
nnnnlow temperatures.
nnnnWeight and Dimensions
nnnnType | PN | DN [mm] | Din n u | lensions [n i L | im] A M | Weight ricnl LK9J |
526 620') 526 6302) 528 6201) 528 6302) | 10-40 | 40 | 84 | 33 | 15 | 1.2 |
50 | 92 | 43 | 5 | 1.7 | ||
65 | 108 | 46 | 12 | 1.7 | ||
80 | 128 | 64 | 16 | 3 | ||
100 | 158 | 64 | 26 | 5 | ||
125 | 180 | 70 | 36 | 7 | ||
150 | 203 | 76 | 51 | 9 | ||
200 | 263 | 89 | 71 | 16 | ||
250 | 315 | 114 | 90 | 28 | ||
526 5201) 528 5302) 528 5201) 528 5302) | 10-25 | 300 | 370 | 114 | 125 | 41 |
350 | 432 | 127 | 146 | 48 | ||
400 | 480 | 140 | 175 | 65 | ||
450 | 530 | 152 | 188 | 94 | ||
500 | 592 | 152 | 228 | 115 | ||
600 | 692 | 178 | 282 | 192 | ||
700 | 804 | 229 | 301 | 270 | ||
800 | 911 | 241 | 374 | 402 | ||
1000 | 1124 | 300 | 458 | 782 | ||
526 8221) 526 8322) | 40-100 | 65 | 125 | 46 | 12 | 3 |
80 | 138 | 64 | 16 | 4 | ||
100 | 158 | 64 | 26 | 5 | ||
125 | 188 | 70 | 39 | 9 | ||
150 | 222 | 76 | 52 | 11 | ||
200 | 275 | 89 | 73 | 23 | ||
250 | 335 | 114 | 93 | 45 | ||
300 | 394 | 114 | 131 | 57 | ||
350 | 435 | 127 | 151 | 75 | ||
4004) | 490 | 140 | 177 | 98 |
') without spring
nnnn2) with spring
nnnn4) DN 400 only for
nnnnPN 40/63
nnnnDesign | Type | PN | DN [mm] | Max. service pressure [bar] / related temperatures [ C]3) | ||||||||||
20 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 525 | ||||
Steel downto-10°C at nominal pressure | 526 620/30 | 40 | 40 - 250 | 36.4 | 31.1 | 28.1 | 25.8 | 24.0 | 22.6 | 21.3 | ||||
526 520/30 | 25 | 300-1000 | 25.0 | 23.3 | 21.7 | 19.4 | 17.8 | 16.1 | 15.0 | |||||
Stainless steel down to ^10 °C at nominal pressure | 528 620/30 | 40 | 40 - 250 | 36.4 | 31.1 | 28.1 | 25.8 | 24.0 | ||||||
528 520/30 | 25 | 300-1000 | 22.8 | 21.1 | 19.6 | 18.3 | 17.2 | |||||||
High-temperature steel downto-10°C at nominal pressure | 526 822/32 | 100 | 65 - 400 | 100.0 | 100.0 | 100.0 | 100.0 | 97.0 | 91.0 | 84.0 | 80.0 | 75.0 | 61.0 | 38.0 |
3) Max. Einsatztemperatur bei Ausführung mit Feder + 300 °C.
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