Steam Traps

Steam traps are a type of automatic valve that filters out condensed steam and non-condensed steam, such as air without letting steam escape. Steam is used for regularly for heating or as a driving force for mechanical power. Used to ensure that the steam is not wasted in such applications.
Mechanical Traps
Mechanical traps sense the difference in density between steam and condensate. Condensate from this type of trap is continually discharged, leaving none to the process. These are the most commonly used steam traps utilised today in systems that require large discharge capacities.
Bucket traps use an inverted bucket as a float device that releases the condensate once the bucket to loses buoyancy and sinks, opening the valve allowing the condensate to be released.
A floating ball trap is a simple mechanical trap that uses the weight of the ball, which acts as a lever keeping the valve closed. As condensate enters the trap it raises the float, opening the valve releasing the condensate.
Thermostatic Traps
Thermostatic traps utilise a temperature sensing element to determine when to discharge the condensate.
Balanced pressure traps operate by balancing the steam pressure and internal pressure of the thermostatic element. At start-up the valve is open, but once the steam reaches a certain temperature bellow expand to close it. These steam traps can be used in steam tracing applications.
Thermodynamic Traps
Thermodynamic traps use the difference in velocity between steam and condensate to operate. As steam enters, it can be freely discharged through a valve. When steam reaches the underside of the disc its velocity is much higher than condensate, creating a pressure drop which closes the valve head. The valve stays shut until the steam pressure above the disc drops, allowing the valve to open and the discharge cycle to repeat.
Steam Trap Types
There are three main types of steam traps to consider, these are:
Applications
Steam traps can be used anywhere there is a steam system and a need to discharge condensate. These include:
• Industrial dryers
• Laundries
• Space heating
• Steaming ovens

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Description Price Trap Type Connection Orientation Maximum Working Pressure Maximum Temperature Body Material Gasket Material Connection Gender Connection Size Thread Standard or Connection Type
RS Stock No. 917-1892
Mfr. Part No.440675
MYR4,883.38
Each
units
- - Vertical 20 bar - Stainless Steel - - - -
RS Stock No. 917-1912
Mfr. Part No.551281
MYR2,278.52
Each
units
Thermostatic - Horizontal, Vertical 14 bar - SG Iron Stainless Steel Female - -
RS Stock No. 917-1906
Mfr. Part No.551278
MYR2,548.36
Each
units
Thermodynamic - Horizontal, Vertical 40 bar - - Stainless Steel Female - -
RS Stock No. 917-1732
Mfr. Part No.348539
MYR3,102.35
Each
units
- - Vertical - - Carbon Steel - - - -
RS Stock No. 917-1710
Mfr. Part No.348536
MYR1,797.80
Each
units
- - Vertical - - Carbon Steel - - - -
RS Stock No. 917-1899
Mfr. Part No.551275
MYR2,647.60
Each
units
Thermostatic - Horizontal, Vertical 10 bar - SG Iron Stainless Steel Female - -
RS Stock No. 917-1928
Mfr. Part No.551284
MYR4,068.62
Each
units
Thermostatic - Horizontal, Vertical 4.5 bar - SG Iron Stainless Steel Female - -
RS Stock No. 917-1915
Mfr. Part No.551279
MYR3,535.55
Each
units
Thermodynamic - Horizontal, Vertical 40 bar - - Stainless Steel Female - -
RS Stock No. 917-1930
Mfr. Part No.551094
MYR14,837.68
Each
units
- - - - +50°C Stainless Steel - - - -
RS Stock No. 799-8897
Mfr. Part No.29001
MYR804.13
Each
units
Float & Thermostatic 3/4 in Horizontal, Vertical 4.5 bar +198°C SG Iron Graphite, Stainless Steel - 3/4in BSP
RS Stock No. 917-1921
Mfr. Part No.551282
MYR2,647.60
Each
units
Thermostatic - Horizontal, Vertical 4.5 bar - SG Iron Stainless Steel Female - -
RS Stock No. 917-1902
Mfr. Part No.551277
MYR2,021.65
Each
units
Thermodynamic - Horizontal, Vertical 40 bar - - Stainless Steel Female - -
RS Stock No. 917-1754
Mfr. Part No.445682
MYR2,864.59
Each
units
Thermostatic - Vertical 6 bar +165°C Stainless Steel - - 1/2in -
RS Stock No. 917-1918
Mfr. Part No.551280
MYR2,275.15
Each
units
Thermostatic - Horizontal, Vertical 4.5 bar - SG Iron Stainless Steel Female - -
RS Stock No. 917-1909
Mfr. Part No.551276
MYR4,068.62
Each
units
Thermostatic - Horizontal, Vertical 10 bar - SG Iron Stainless Steel Female - -
RS Stock No. 799-8888
Mfr. Part No.29004
MYR832.24
Each
units
Float & Thermostatic 1/2 in Horizontal, Vertical 14 bar +198°C SG Iron Graphite, Stainless Steel - 1/2in BSP
RS Stock No. 917-1726
Mfr. Part No.348537
MYR1,987.10
Each
units
- - Vertical - - Carbon Steel - - - -
RS Stock No. 917-1748
Mfr. Part No.348540
MYR4,045.65
Each
units
- - Vertical - - Carbon Steel - - - -
RS Stock No. 917-1713
Mfr. Part No.348535
MYR1,703.15
Each
units
- - Vertical - - Carbon Steel - - - -
RS Stock No. 799-8890
Mfr. Part No.29003
MYR808.60
Each
units
Float & Thermostatic 3/4 in Horizontal, Vertical 10 bar +198°C SG Iron Graphite, Stainless Steel - 3/4in BSP