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Thermodynamic Disc Steam Trap is designed to trap the steam inside a hot water pipeline. The trap uses a simple thermodynamic principle that the steam rises above water. The trap has an inlet, outlet a chamber to trap the stem and other smaller components. The Thermostatic Disc Steam Trap lets the hot water in and the disc sits on top of the inlet. While there is no steam, the chamber above the disc is empty. This means, there is no pressure above the disc. So the incoming water pushes the disc above and flows through the outlet. This is the opening position of the trap. While there is steam in the water, the steam gets above the water and builds up inside the chamber above the Thermal Disc Steam Trap. When steam builds up, it forces the disc to lower and close the inlet.

Thermodynamic Disc Steam Trap

Thermodynamic Disc Steam Trap

Stainless Steel Inverted bucket steam traps

Stainless Steel Inverted bucket steam traps

Cast Iron Steam Trap Valve

Cast Iron Steam Trap Valve

Stainless Steel Thermodynamic Disc Steam Trap Manufacturers, View Cast Iron Mechanical Steam Trap Dimensions

This way, the water flow is stopped, but the steam keeps building up. As the pressure increases above, the steam starts to condense. Once the steam has condensed into water, the pressure above the Thermo Disc Steam Trap disc goes down. When the pressure below is higher than the pressure above, it pushes the disc upwards opening the outlet and the water starts to flow again. The trap does not need any adjustment while at operation. The Disc Type Steam Trap can come in different materials but the ductile iron materials are more common. The traps also come in various sizes and dimensions according to the standards and the application pipeline size.

 

Specification of Thermodynamic Disc Steam Trap

Size 15 & 20
End connections  BSP/BSPT/NPT

Working Principle of Thermodynamic Disc Steam Trap

In a thermodynamic disc steam trap, the flow of condensate is controlled by a circular shape valve head (valve disc) opening and closing against the valve seat. The valve disc is disconnected from all other parts of the trap, and rests on top of the valve seat.

Features of Thermodynamic Disc Steam Trap

Operating Pressure Range of Thermodynamic Steam Traps

Operating Pressure Range 42

Operating Temperature Range of Thermodynamic Steam Traps

Operating Temperature Range 454

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Materials of construction of Thermodynamic Steam Traps

Body  420F SS ASTM A743 CA40F
Cap & Disc  416 SS ASTM A582
Blow Down Valve   304/316SS
Screen   Stainless Steel

Operating Conditions of Thermostatic Disc Steam Trap

  • PMO: Max. Operating Pressure: 600 psig (41.3 barg)
  • TMO: Max. Operating Temperature: 800°F (426°C)
  • PMA: Max. Allowable Pressure: 600 psig (41.3 barg)
  • TMA: Max. Allowable Temperature: 800°F (426°F)

Dimension of Thermostatic Disc Steam Trap

Inches (mm) Weight Lbs (kg)
Size A B C
3⁄8'' 2, (51) 13⁄4 (44) 13⁄4 (44) .8, (.36)
1⁄2'' 2c (68) 13⁄4 (44) 2, (51) 1.2, (.55)
3⁄4" 213⁄16 (71) 25⁄16 (59) 27⁄16 (62) 1.85, (.86)
1" 35⁄16 (84) 21⁄2 (64) 27⁄8 (73) 3.1, (1.8)

Various Types of Thermodynamic Disc Steam Trap

Stainless Steel Thermodynamic Disc Steam Trap

Stainless Steel Thermodynamic Disc Steam Trap

Cast Iron Mechanical Steam Trap

Cast Iron Mechanical Steam Trap

Carbon Steel Td42l Bucket Steam Trap

Carbon Steel Td42l Bucket Steam Trap

Duplex 2205 Thermo Disc Steam Trap

Duplex 2205 Thermo Disc Steam Trap

GS-C25 cast steel Steam Trap Boiler

GS-C25 cast steel Steam Trap Boiler

ASTM A217 Grade WC6 Thermodynamic Steam Trap

ASTM A217 Grade WC6 Thermodynamic Steam Trap

Thermodynamic Disc Steam Trap Maximum Capacity

NPT, Connection Differential PSIG (barg)
3.5, (0.24) 5, (0.34) 10, (0.7) 20, (1.4) 30, (2.1) 50, (3.4) 75, (5.2) 100, (6.9) 150, (10.3) 200, (13.8) 300, (20.7) 400, (27.6) 500, (34.5) 600, (41.3)
3/8" 180 185 190 200 215 245 305 370 500 610 790 960 1100 1250
1/2" 300 310 345 410 465 575 700 810 1000 1140 1410 1630 1830 2000
3/4" 405 420 470 560 640 810 1000 1160 1450 1670 2100 2430 2750 3050
1" 640 670 725 865 980 1200 1470 1750 2200 2600 3250 3780 4250 4700

Maximum operating conditions of Liquidator Thermo Disc Steam Trap

  • PMO: Max. Operating Pressure: (41.3 barg) (31 barg)
  • TMO: Max. Operating Temperature: 650°F (343°C)
  • PMA: Max. Allowable Pressure: 450 psig (31 barg)
  • TMA: Max. Allowable Temperature: 650°F (343°C)
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Liquidator Disc Type Steam Trap Materials of construction

Body & Cover  ASTM A351 Grade CF8 (304)
Cover Gasket  304 stainless spiral wound w/graphite fill
Celtron® Cartridge 416 Stainless Steel w/hardened disc & seat
Strainer  304 Stainless Steel
Mounting Block ASTM A351 Grade CF8 (304)

Maximum Capacity of Liquidator Thermodynamic Disc Steam Trap

  • PMO: Max. Operating Pressure: (41.3 barg) (31 barg)
  • TMO: Max. Operating Temperature: 650°F (343°C)
  • PMA: Max. Allowable Pressure: 450 psig (31 barg)
  • TMA: Max. Allowable Temperature: 650°F (343°C)

Temperature Range of Liquidator Thermo Disc Steam Trap

Temperature Range 650°F (343°C)

Benefits of Thermodynamic Disc Traps

  • Easy to Install
  • Easy Selection & Storage
  • Can be used on superheated steam
  • Highly resistant to damage from freezing
Dealer of ASTM A217 Grade WC6 Thermodynamic Steam Trap, Stockholder of Brass Disc Type Steam Trap

Thermodynamic Disc Traps Limitations

  • Shorter service life
  • Greater steam loss
  • Sensitive to environmental conditions

High Temperature and High Pressure Disc Steam Trap

High Temperature and High Pressure Disc Steam Trap works at high temperatures and pressures. Applications such as the oil and gas, petroleum, boiler, condenser, heat exchanger and power plant pipelines all use the High Temperature High Pressure Disc Type Steam Trap in operation. The trap works with a disc inside the chamber responding to the temperature and pressure. The disc opens up the inlet valve when the pressure drops inside the system. Once steam enters the system, it forces the disc to close the valve. The steam is captured on top of the disc inside the Stainless Steel High Temperature Disc Steam Trap chamber. The steam starts to condense and once the pressure drops below the threshold, the disc moves up to open the inlet and outlet valves.

The flow of the liquid continues until steam starts to enter the chamber. The cycle repeats without much of manual operation. The Cast Steel High Pressure Disc Steam Trap is the most commonly used but the elements inside the trap can be made up of different material types based on the liquid that is supposed to flow inside the trap. There are different pressure temperature deviations based on the applications as well. So the High Pressure Disc Type Steam Trap varies in dimensions, sizes, corrosion resistance and in temperature and pressure capacities from application to application.