Gestra MK45-2

Steam Trap MK45-2

Data Sheet 810317-09 Issue Date: 12/22
Steam Trap
MK 45-1, MK 45-2, MK 45A-1, MK 45A-2
PN 40 / Class 300
DN 15, 20, 25 (½", ¾", 1") Description
MK 45 with flanges
Thermostatic steam trap with corrosion-resistant thermostatic capsule. With Y-type strainer and integrated water hammer
protection. Do not expose the control membrane capsule to superheat conditions above 5°C.
Steam traps with standard capsule "N" discharge condensate with approx. 10 K below boiling temperature, traps with capsule
"U" with an undercooling of approx. 30 K and traps with capsule "H" with approx. 5 K undercooling.
MK 45-1, MK 45A-1 with tandem seat (double sealing) Particularly for low condensate flowrates. Optionally with standard capsule 5N1 or special capsule 5U1 or 5H1.
MK 45-2, MK 45A-2 with single seat For larger condensate flowrates. Optionally with standard capsule 5N2 or special capsule 5U2 or 5H2.
Pressure /Temperature Ratings
MK 45, flanged PN 40, EN 1092-1 Pressure1) p [barg] 40.0 37.1 33.3 30.4 27.6 25.7 23.8 17.1
Temperature1) T [°C] -10/20 100 200 250 300 350 400 420 Max. admissible differential pressure ∆PMX [bar] / [psi]
32 / 465 Admissible service temperature Saturated steam temperature 1 Pressure ) p
[psig] 580 537.95 483 441 400 373 345 190 Temperature1) T [°F] 14/68 212
392 482 572 662 752 842 1)
End Connections ■ Flange EN 1092-1 B1 PN 40 ■ Flange ASME B 16.5 Class 150 RF, 300 RF
■ Screwed sockets G: ISO 228-1 ■ Screwed sockets NPT: ASME B 16.11 ■ Socket-weld ends DIN EN 12760
■ Socket-weld ends ASME B 16.11 Class 3000 ■ Butt-weld ends via transition pieces to EN 12627
welded joint geometry ISO 9692-1 code number 1.3 (30° chamfer) ■ Butt-weld ends via transition pieces ASME B 16.25
ASME B 36.10
Fluids The equipment is designed for the following fluids (in accordance with the EU Pressure Equipment Directive or Pressure
Equipment (Safety) Regulations in the UK):
n Fluids of group 2 Due consideration must be given to chemical and corrosive
influences.
Application in potentially explosive areas The equipment does not have its own potential source of
ignition (as per ATEX Directive). Please pay attention to the following information:
Make sure that the fluid does not generate excessively high surface temperatures during operation.
The equipment itself does not generate additional surface temperatures.
When installed, static electricity may arise between the equipment and the connected system. When used in potentially explosive atmospheres, the plant manufacturer or
plant operator is responsible for discharging or preventing possible static charge.
If it is possible for medium to escape, e.g. through actuating mechanisms or leaks in threaded joints, the plant manufacturer or plant operator must take this into consideration
when dividing the area into zones.
Resistance limits for body/cover to EN 1092-1
MK 45, flanged Class 150, ASME B16.5 Pressure1) p [barg] 19.6 Temperature1) T
[°C] -29/38 Max. admissible differential pressure ∆PMX [bar] / [psi] Admissible service temperature
Pressure1) p [psig] 284 Temperature1) T [°F] -20/100 1)
17.7 100
13.8 12.1 10.2 8.4 200 250 300 350 19.6 / 284 Saturated steam temperature
256.65 200 175 148 122 212 392 482 572 662
6.5 400
5.5 425
94 752
80 797
Resistance limits for body/cover to ASME B 16.5
MK 45, flanged Class 300, ASME B16.5, butt-weld ends EN 12627 socket-weld ends EN 12760, socket-weld ends Class 3000, ASME B16.11
screwed sockets BSP, ISO 228-1, screwed sockets NPT, ASME B16.11 Pressure1) p
[barg] 51.1 46.6 43.8 41.9 39.8 37.6 34.7 28.8 Temperature1) T [°C] -10/38 100
200 250 300 350 400 425 Max. admissible differential pressure ∆PMX [bar] / [psi]
32 / 465 Admissible service temperature Saturated steam temperature Pressure1) p
[psig] 741 675.7 635 608 577 545 503 418 Temperature1) T [°F] -20/100 212
392 482 572 662 752 797 1)
Resistance limits for body/cover to ASME B 16.5
MK 45A, flanged PN 40, EN 1092-1 Pressure1) p Temperature1) T Max. admissible differential pressure ∆PMX
Admissible service temperature Pressure1) p Temperature1) T
[barg] 40 37.2 [°C] -10/20 100 [bar] / [psi] [psig] [°F]
580 14/68
31.8 29.9 27.6 26.4 25.7 200 250 300 350 400 32 / 465 Saturated steam temperature
539.4 461 434 400 383 373 212 392 482 572 662 752
– – – –
1) Resistance limits for body/cover to EN 1092-1 If the operating temperatures exceed 300°C intercrystalline corrosion may occur. Do not subject the equipment to operating temperatures higher than 300° C unless
intercrystalline corrosion can be ruled out.
MK 45A, flanged Class 150, ASME B16.5 Pressure1) p [barg] 15.9 Temperature1) T
[°C] -29/38 Max. admissible differential pressure ∆PMX [bar] / [psi] Admissible service temperature
Pressure1) p [psig] 231 Temperature1) T [°F] -20/100
13.3 100
11.2 10.5 10 8.4 200 250 300 350 15.9 / 284 Saturated steam temperature 200.1 162 152 145 122
212 392 482 572 662
6.5 400
– –
94 752
– –
1) Resistance limits for body/cover to ASME B 16.5 If the operating temperatures exceed 300°C intercrystalline corrosion may occur. Do not subject the equipment to operating temperatures higher than 300° C unless
intercrystalline corrosion can be ruled out.
MK 45A, flanged Class 300, ASME B16.5, butt-weld ends EN 12627 socket-weld ends EN 12760, socket-weld ends Class 3000, ASME B16.11
screwed sockets BSP, ISO 228-1, screwed sockets NPT, ASME B16.11 Pressure1) p
[barg] 41.4 34.8 29.2 27.5 26.1 25.1 24.3 Temperature1) T [°C] -10/38 100
200 250 300 350 400 Max. admissible differential pressure ∆PMX [bar] / [psi]
32 / 465 Admissible service temperature Saturated steam temperature Pressure1) p
[psig] 600 504.6 423 399 378 364 352 Temperature1) T [°F] -20/100 212 392 482 572 662 752
– – – –
1) Resistance limits for body/cover to ASME B 16.5 If the operating temperatures exceed 300°C intercrystalline corrosion may occur. Do not subject the equipment to operating temperatures higher than 300° C
unless intercrystalline corrosion can be ruled out.