Flowserve BK 15 - Manual (Page 8)

8
Pressure /Temperature Ratings Class 300
Body material Forged steel 1.0460 (P250GH / C22.8) / ASTM A105
Nominal sizes (DN) 40, 50
Connections Flanged to ASME Class 300
Service pressure PMA [barg] 51 43.9 38.9 34.6 20.2
[psig] 740 637 565 500 293
Related temperature TMA [°C] 20 200 300 400 450
[°F] 68 392 572 752 842
Explanatory Notes
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Technical Data
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Materials
EN DIN ASTM equivalent
Body P250GH (1.0460) C22.8 (1.0460) A105
Cover P250GH (1.0460) C22.8 (1.0460) A105
Bolts 42CrMo4 (1.7225) A193 B7
Body gasket graphite
Regulator stainless steel
Other internals stainless steel
Pressure /Temperature Ratings Class 150
Body material Forged steel 1.0460 (P250GH / C22.8) / ASTM A105
Nominal sizes (DN) 40, 50
Connections Flanged to ASME Class 150
Service pressure PMA [barg] 19.7 14 10.2 6.5 4.6
[psig] 287 203 149 94.3 66.7
Related temperature TMA [°C] 20 200 300 400 450
[°F] 68 392 572 752 842
Corrosion Resistance
The valve body must not be subjected to pulsating loads. The dimensional allowances
for corrosion reflect the latest state of technology.
Sizing
When used for its intended purpose the safe functioning of the steam trap will not be
impaired by corrosion.
Admissible differential pressure 1 ) 2 )
Differential pressure
∆
PMX 22 barg (319 psig)
1 ) Note pressure/temperature ratings 2 ) Inlet pressure minus outlet pressure