01925 225252

Models 3A/GM3/6A/GM6

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

For fast start up and modulating discharge on process and heating, applications with differential pressures up to 70 PSI, this series of traps is designed to handle the varying conditions found in process applications with condensate loads ranging from light to heavy.

Description

3A/GM3 Max Differential pressure – 330 PSI
6A/GM6 Max Differential pressure – 70 PSI

Line sizes

Model 3A – 3/8″, 1/2″, 3/4″
Model GM3 – 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″
Model 6A – 3/8″, 1/2″, 3/4″
Model GM6 – 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″
End connections threaded (BSP, NPT) socket weld flanged

Materials
  • Body & Cover: Forged carbon steel
  • Valve Seat: Stainless steel
  • Valve Cone: Stainless steel
  • Bimetal: Stainless steel
  • Strainer: Stainless steel
  • Gasket: Flexible graphite
Mounting

From horizontal to vertical. Self draining and freeze resistant when mounted in vertical position.

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

3A

SizeABCDEWt
3/8"4"5"3 1/4"3 1/8"2 1/4"5.5lb
1/2"4"5"3 1/4"3 1/8"2 1/4"5.5lb
3/4"4"5"3 1/4"3 1/8"2 1/4"5.5lb

GM3

SizeABCDEWt
1/2"4"5"3 1/4"3 1/8"2 1/4"5.5lb
3/4"4"5"3 1/4"3 1/8"2 1/4"5.5lb
1"5"6 3/4"3 5/8"4"3/14"9.9lb
1 1/4"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
2"10 7/8"13 7/16"6 3/4"4 9/16"N/A70lb

6A

SizeABCDEWt
3/8"4"5"3 1/4"3 1/8"2 1/4"5.5lb
1/2"4"5"3 1/4"3 1/8"2 1/4"5.5lb
3/4"4"5"3 1/4"3 1/8"2 1/4"5.5lb

GM6

SizeABCDEWt
1/2"4"5"3 1/4"3 1/8"2 1/4"5.5lb
3/4"4"5"3 1/4"3 1/8"2 1/4"5.5lb
1"5"6 3/4"3 5/8"4"3 1/4"9.9LB
1 1/4"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
2"10 7/8"13 7/16"6 3/4"4 9/16"N/A70lb
Capacity charts: Condensate Capacity (1b/hr Pressure Differential PSI)

3A

SizePSI Differential251015202530
3/8" 1/2"
3/4"
Cold start up500100018002200260029003000
Hot175200200200200200200

6A

SizePSI Differential251015202530
3/8" 1/2"
3/4"
Cold start up1200190025002900330038004000
Hot130160190200210220230

GM3

SizePSI Differential251015202530
1/2"Start up1000170021002500290030003200
3/4"*Hot500700750750750750750
1"Start up1800320051006900800089009000
Hot70095013001600170018002000
1 1/4"Start up400070001000013000160001800020000
1 1/2"Hot2400280032003700390040004100
2"Start up13000200003000035000400004500050000
Hot500063007500850090001000011000

GM6

SizePSI Differential251015202530
3/4"*Hot580700760820860880900
2"Start up15000250003100036000420004400046000
Hot3100600072008000850089009200
1/2"Start up1800300038004650520058006200
1"Start up3500640081008900940096009800
Hot1100134015201590165017001750
1 1/4"Start up8000140001800021000230002500026000
1 1/2"Hot3100335035503700380038503900