What is bimetallic steam trap?

Bimetallic Steam Trap. This trap is a temperature operated trap i.e. thermostatic steam trap. It uses the fact that temperature of steam is higher than condensate. Higher temperature of steam is used to close this steam trap.

How does a steam trap work?

steam trap – Self contained valve which automatically drains the condensate from a steam containing enclosure while remaining tight to live steam, or if necessary, allowing steam to flow at a controlled or adjusted rate. Most steam traps will also pass non-condensable gases while remaining tight to live steam.

How much condensate is produced from steam?

1 kg of condensate at 5 bar g and 159°C produces 0.112 kg of flash steam at atmospheric pressure. This can be illustrated schematically in the table below. The total mass of flash and condensate remains at 1 kg.

How do you heal steam condensates?

What is Condensate Recovery?

  1. As heated feedwater, by sending hot condensate back to the boiler’s deaerator.
  2. As pre-heat, for any applicable heating system.
  3. As steam, by reusing flash steam.
  4. As hot water, for cleaning equipment or other cleaning applications.

Why bimetallic strip is used?

Bimetallic strip is used to convert a temperature change into a mechanical displacement. It consists of two strips of different metals which expands at different rates as they are heated. Usually steel and copper, or in some cases steel and brass is used in bimetallic strip.

Why do steam traps fail?

Dirt – by far the leading cause of failure resulting in either a leaking or plugged trap. Pressure surges (due to sudden steam valve openings, improper piping, or trap misapplications) resulting in water-hammer and subsequent damage to the internal steam trap components.

What temperature is steam condensate?

Significant fuel savings occur as most returned condensate is relatively hot (130°F to 225°F), reducing the amount of cold makeup water (50°F to 60°F) that must be heated.

How do you calculate condensate load for a steam trap?

Calculate average rate of condensate: Pounds of condensate x 60 = Lbs./Hr. 13.6 x 60 = 54.4 Lbs./Hr. This is the average rate of condensate the trap must handle during heat-up. A capacity of 54.4 Lbs./Hr.

What happens when bimetallic strip is heated?

The strip consists of two strips of different metals which expand at different rates as they are heated. The different expansions force the flat strip to bend one way if heated, and in the opposite direction if cooled below its initial temperature.