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Model M25/GM25 Steam Traps

Features

  • Single blade element
  • Stainless steel internals
  • Built in strainer & check valve
  • Modulating discharge
  • Continuous air & CO2 venting
  • Fast start capabilities
  • No loss of live steam

Description

Max. differential pressure - 320 PSI
Max. body pressure 750 PSI
Max. body temperature 650F

Line sizes  
Model M25 1/2" 3/4", 1", 1 1/2", 2"
Model GM25

1/2" 3/4"

End connections threaded (BSP, NPT) socket weld or flanged
   
Materials  
Body & Cover: Forged carbon steel
Valve Seat: Stainless steel
Valve Cone: Stainless steel
Strainer: Stainless steel
Nuts & Bolts Steel
Gasket: Flexible graphite
   
Mounting  
From horizontal to vertical. Self draining and freeze resistant when mounted in vertical position.


 

Operation

On initial start up the steam system, large amounts of cold condensate and air are present in the system. At this point the bimetallic strip of the delta element relaxes and fully opens the valve assembly to quickly expel the high volume of non-condensate gases and cold condensate through the discharge port.

As the element senses an increase in the condensate temperature the bimetal expands and raises the stem to modulate the flow. Just below the temperature of saturated steam the seat will close tightly to prevent live steam from discharging.

Application

A series of compact, high capacity steam traps developed to handle the varying loads and pressures and heating applications with differential pressure up to 320 PSI featuring a built in strainer and check valve the M26/GM25 is produced in sizes up to 2".
  

Dimensions
(Dimension 'D' is overall width)

M25
Size
A
B
C
D
E
Wt
1/2"
4"
6"
3 5/8"
4"
2 5/8"
8.4lb
3/4"
4"
6"
3 5/8"
4"
2 5/8"
8.4lb
1"
5"
6 3/4"
3 5/8"
4"
3 1/2"
9.9lb
1 1/2"
7 1/8"
9 1/2"
5 7/8"
6"
4 3/8"
33lb
1 1/2"
7 1/8"
9 1/2"
5 7/8"
6"
4 3/8"
33lb
 
GM25
Size
A
B
C
D
E
Wt
1/2"
4"
6"
3 5/8"
4"
2 5/8"
8.4lb
3/4"
4"
6"
3 5/8"
4"
2 5/8"
8.4lb
  

Capacity charts: Condensate Capacity (1b/hr) at Pressure Differential

Size
PSI Differential
150
200
250
320
1/2"
Cold start up
Hot (Dripleg)
4000
160
5000
180
6000
190
6200
200
3/4"
Cold start up
Hot (Dripleg)
4000
160
5000
180
6000
190
6200
200
1"
Cold start up
Hot (Process)
9000
800
12000
1100
14000
1500
14200
1800
1 1/2"
Cold start up
Hot (Process)
20000
1200
22000
1100
24000
4000
28000
5300
1 1/2"
Cold start up
Hot (Process)
20000
1200
22000
1100
24000
4000
28000
5300
 
Size
PSI Differential
150
200
250
320
1/2"
Cold start up
Hot (Process)
9000
800
12000
1000
14000
1300
14000
1500
1/2"
Cold start up
Hot (Process)
9000
800
12000
1000
14000
1300
14000
1500
 
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