Steam Traps
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Thermostatic Steam Traps BK
with Duo Stainless Steel (Bimetallic) Regulator PN 40 to PN 630/CL2500
Features of the BK series:
● No loss of live steam
● Robust regulator, unaffected by waterhammer and frost
● Automatic air-venting (can be air vent in steam systems)
● Suitable for superheated steam applications
● Stainless steel or Titanium alloy internals
● Stage nozzle for dynamic function act as check valve
● Built-in strainer
● Base busing ensures positive metal-to-metal internal sealing
● Installation in horizontal or vertical lines. Repairable in-line.
Gestra BK45, BK46 DN15(1/2")-DN25(1") Max Diff. Pressure : 22/32 Bar
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material : Carbon steel, Alloy steel for high temperature service
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Gestra BK15 DN40(1 1/2")-DN50 (2") Max Diff. Pressure : 22 Bar
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material : Carbon steel
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Gestra BK27N DN40(1 1/2")-DN50 (2") Max Diff. Pressure : 45 Bar
End connections: Flanged PN40/63, Class400, socket-weld ends, butt-weld ends
Body Material : Alloy steel for high temperature service
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Gestra BK37, BK28, BK29 DN15(1/2")-DN25(1") Max Diff. Pressure : 45/85/110 Bar
End connections: Flanged PN63/100/160, Class400/600/900/1500, socket-weld ends, butt-weld ends
Body Material : Alloy steel for high temperature service with wear-resistant titanium alloy nozzle stem and seat
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Gestra BK212 DN15(1/2")-DN25(1") Max Diff. Pressure : 275 Bar
End connections: Flange CL1500/CL2500, Socket-weld ends, butt-weld ends
Body Material : Alloy special steel for higer pressure and temperature combinations,
Alloy special martensitic creep resistance F91 with wear-resistant titanium alloy nozzle stem and seat
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Thermostatic Steam Traps MK
with Hastelloy Mambrane Regulator PN 25 to PN 40/CL300
Features of the MK series:
● No loss of live steam
● Very sensitive response characteristic
● Function is not impaired by high back pressure
● Automatic air-venting (can be air vent in steam systems)
● High hot-water capacities even with low diff. pressure
● With tandem seat (double sealing) for low flowrate
● Built-in non-return valve and strainer
● Stainless steel internal with corrugated Hastelloy membrane
● Installation in horizontal or vertical lines. Repairable in-line.
Gestra MK35/31, MK35/32 DN10(3/8")-DN15(1/2") Max Diff. Pressure : 21 bar
End connections: Socket-weld ends , screwed sockets
Body Material: Carbon steel
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Gestra MK35/2S, MK35/2S3 DN25(1") Max Diff. Pressure : 32 bar
End connections: Flanged PN40, Class150/300, socket-weld ends, screwed sockets, butt-weld ends
Body Material: Carbon steel
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Gestra MK25/2, MK25/2S DN40(1 1/2" - DN50(2") Max Diff. Pressure : 32 bar
End connections: Flanged PN40, Class150/300, socket-weld ends, screwed sockets, butt-weld ends
Body Material: Carbon steel
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Gestra MK45-1, MK45-2, MK45 A-1, MK45 A-2 DN15(1/2")-DN25(1") Max Diff. Pressure : 32 bar
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel, Low carbon stainless steel 316L
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Gestra MK36/51, MK36/52 DN8(1/4")-DN25(1") Max Diff. Pressure : 32 bar
End connections: Screwed sockets, union butt-weld nipples
Body Material: Stainless steel
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Ball-Float Traps UNA
PN 16 to PN 160/CL900
Features of the UNA series:
● No loss of live steam
● Unaffected by back pressure and condensate temperature
● No banking-up of condensate even with extreme load and pressure fluctuations
● Particularly well suited for heat exchangers
● Unaffected by dirt
● Automatic thermostatic air-venting
● Low in friction, ensuring minimal wear with high tightness due to rolling ball valve design
● Ideal for cold condensate and distillated discharge
● Selectable for horizontal or vertical lines. Repairable in-line.
Gestra UNA14, UNA16, UNA16A DN15(1/2")-DN25(1") Max Diff. Pressure : up to 32 Bar
End connections: Flanged PN25/40, Class150, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel, Low carbon stainless steel 316L
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Gestra UNA41 DN15(1/2")-DN25(1") Max Diff. Pressure : up to 14 Bar
End connections: Flanged PN16, Class150, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel
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Gestra UNA23, UNA25, UNA26 DN15(1/2")-DN50(2") Max Diff. Pressure : up to 32 Bar
End connections: Flanged PN16/40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Cast iron, Carbon steel, Stainless steel CF8M
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Gestra UNA45, UNA46, UNA46A DN15(1/2")-DN50(2") Max Diff. Pressure : up to 32 Bar
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel, Stainless steel 316L
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Gestra UNA45 MAX, UNA46 MAX, UNA46A MAX DN40(1 1/2")-DN50(2") Max Diff. Pressure : up to 32 Bar
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel, Stainless steel 316L
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Gestra UNA27h DN25(1")-DN50(2") Max Diff. Pressure : up to 45 Bar
End connections: Flanged PN63, Class300/400/600, socket-weld ends, butt-weld ends
Body Material: Alloy steel for high temperature service
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Gestra UNA38, UNA39 DN15(1/2"), DN25(1")-DN50(2") Max Diff. Pressure : up to 140 Bar
End connections: Flanged PN100/160, Class600/900/1500, socket-weld ends, butt-weld ends
Body Material: Alloy steel for high temperature service
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Gestra UNA SPECIAL Type 62 PN16 Angle pattern DN65(2 1/2")-DN100(4") Max Diff. Pressure : 16 Bar
End connections: Flanged PN16
Body Material: Cast iron
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Gestra UNA SPECIAL PN25 Angle pattern DN50(2")-DN65(2 1/2") Max Diff. Pressure : 22 Bar
End connections: Flanged PN25
Body Material: Carbon steel
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Gestra UNA PN25 Angle pattern DN80(3")-DN100(4") Max Diff. Pressure : 22 Bar
End connections: Flanged PN25, Class150
Body Material: Carbon steel
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Gestra UNA SPECIAL PN63 Angle pattern DN65(2 1/2")-DN100(4") Max Diff. Pressure : 45 Bar
End connections: Flanged PN63
Body Material: Alloy steel for high temperature service
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Thermodynamic Steam Traps DK
PN 40 to PN 63
Features of the DK series:
● Discharge with virtually no banking-up
● Robust, insensitive regulator
● Installation in any position
● Max. admissible back pressure 80 % of the upstream pressure
Gestra DK45
End connections: Flanged PN40, Class150/300, socket-weld ends, butt-weld ends, screwed sockets
Body Material: Carbon steel
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Gestra DK47, DK57
End connections: Screwed sockets
Body Material: Stainless steel
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Steam Traps for Special Applications
Gestra AK45 PN40
For discharging condensate from steam systems during
start-up and draning residual condensate at shut-down.
Factory-set closing pressure 0.8 bar
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Gestra UBK46 PN40
Steam traps with adjustable condensate discharge temperature.,
thereby suppressing the formation of flash steam
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Gestra SMK22
Pocket-free steam trap for SIP applications.
Body Material: Stainless steel 316L
Download Technical Sheets - Gestra SMK22, SMK22-51
Download Technical Sheets - Gestra SMK22-81, SMK22-82
Gestra TK, GK
For the discharge of very large condensate flowrates
Body Material: Cast iron
Download Technical Sheets - Gestra TK23, TK24
Download Technical Sheets - Gestra GK11
Steam Trap Units for UNIVERSAL (Swivel) Connectors
Features of the UNIVERSAL Connectors:
● Maintenance-free, ultra-compact steam traps made from stainless steel, suitable for all UNIVERSAL (Swivel) connectors. Installation in any position
● Integrated spiral wound gasket for connector
● Only two screws make for a quick and easy installation
● All steam trap units are optionally available with a UNIVERSAL connector (not fitted), e.g. UC 36, UCY 36 or TS 36.
Gestra BK 36 A/7, MK 36 A/71, MK 36 A/72, DK 36 A/7, UCY 36, UC 36 Steam Trap Units for Universal Connectors Body Material: Stainless steel CF8M
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Gestra IB 16A-7 Inverted Bucket Steam Traps, suitable for fitting to a universal (“Swivel”) connector Body Material: Stainless steel A240-304L
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Gestra TS 36-1, TS36-2, TrapStation
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