Flowserve NAF-Check Non Return Check Valves Manual de usuario Pagina 3

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Version Designation Item no. NAF specification DIN equivalent
DN 40+50 1 SS 2343 (
=
^
ASTM, A 276 316) X5CrNiNb 18 143 1.4436
5
)
Body DN 65-250 ASTM A 351 CF8M X10CrNiMo 18 10 1.4581
DN 300-1000 ASTM A 216 WCC GP 240 GH (GS-C 25) 1.0619
Steel Disc DN 40+ 50 2 SS 2395 – X2CrNiMoN 1713 5 1.4439
DN 65-1000 SS 2387 – X4CrNiMo 165 1.4418
5
)
Hinge 3 SS 2303 (
=
^
ASTM, A 276 420) X20Cr 13 1.4021
Spring DN 65-1000 4 SS 2388 – X7CrNiAl 177 1.4568
Body DN 40+50 1 SS 2343 (
=
^
ASTM, A 276 316) X5CrNiNb 18 143 1.4436
5
)
DN 65-1000 ASTM A 351 CF8M X10CrNiMo 18 10 1.4581
Stainless steel Disc 2 SS 2324 (
=
^
AISI 329) X8CrNiMo 25 5 1.4460
Hinge 3 SS 2324 (
=
^
AISI 329) X8CrNiMo 25 5 1.4460
Spring DN 65-1000 4 SS 2388 – X7CrNiAl 177 1.4568
Body 1 ASTM A 217 WC6 GS-17CrMo 5 5 1.7357
High- Disc 2 ASTM A 217 WC6 GS-17CrMo 5 5 1.7357
temperature
Hinge 3 SS 2303 (
=
^
ASTM, A 276 420) X20Cr 13 1.4021
steel
Spring DN 65-400 4 SS 2388 – X7CrNiAl 17 7 1.4568
Connections of wafer-type valves
Valves for universal fitting between flanges to
Type DIN 2501 ANSI weld neck BS 10 Table BS 4504 Table
526 520/30, 528 520/30 PN 10/16/25 Class 150, DN 300-600 E, F, DN 300-600 10/2, 16/2, 25/2
526 620/30, 528 620/30 PN 10/16/25/40 Class 150, 300 E, F, H 10/2, 16/2, 25/2, 40/2
526822/32 PN 40/63/100
4
) Class 300, 400/600 H, J, K, R 40/2, 63/2, 100/2
4
)
4
) DN 400 (16") not for PN 100 (100/2)
Installation
The flow direction is indicated by an arrow on the lifting lug. Installation in horizontal
lines (lifting lug on top) or vertical lines with upward flow.
Materials
5
) cast steel
4
1
3
2
0
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