Max. admissible differential pressure, Materials, Pressure/temperature ratings class 300 – Flowserve MK35/2S User Manual
Page 10: Pressure/temperature ratings class 150
10
Explanatory Notes
continued
Technical Data
continued
Max. admissible differential pressure
1
)
Differential pressure ΔPMX
22 bar (319 psig)
(Inlet pressure minus outlet pressure)
1
) Take pressure/temperature ratings into consideration.
Materials
EN
DIN
ASTM
Body
P250GH (1.0460)
C22.8 (1.0460)
A105
Cover MK 35/2S
P250GH (1.0460)
C22.8 (1.0460)
A105
Cover MK 35/2S3
P250GH (1.0460)
C22.8 (1.0460)
A 105
Screws
42CrMo4 (1.7225)
42CrMo4 (1.7225)
A193 B7
Body gasket
Graphite
Thermostatic capsule
Hastelloy / stainless steel
Other internals
Stainless steel
Pressure/Temperature Ratings Class 300
Body material
1.0460 (P250GH / C22.8) / ASTM A105
Nominal size (DN)
25
Connection
Flanged ASME Class 300, B16.34, Group 1.1
Max. allowable pressure PMA [barg]
51
43.9
38.9
34.6
28.7
[psig]
740
637
565
500
419
Inlet temperature TMA
[°C]
20
200
300
400
425
[°F]
68
392
572
752
797
Pressure/Temperature Ratings Class 150
Body material
1.0460 (P250GH / C22.8) / ASTM A105
Nominal size (DN)
25
Connection
Flanged ASME Class 150, B16.34, Group 1.1
Max. allowable pressure PMA [barg]
19.7
14
10.2
6.5
5.6
[psig]
288
203
149
94
81
Inlet temperature TMA
[°C]
20
200
300
400
425
[°F]
68
392
572
752
797