Steam trapping overview

Make your steam system safe, efficient and sustainable The duty of a steam trap is to discharge condensate while retaining live steam in the system. This ensures your steam system is able to operate efficiently, without the detrimental effects of unwanted condensate essential in temperature critical applications. Condensate in the system can lead to a number of issues such as: - Poor heat transfer - Damage to system and process equipment - Poor quality or wasted product Selecting the right steam trapping solution helps to avoid these problems, whilst at the same time allowing the condensate to...

An introduction to steam traps Each steam application has its own steam trap requirements. Selecting the right steam trap for your application could have a significant, positive impact on your process, potentially improving efficiency, reducing energy costs and giving you a safer working environment. For example: condensate must be removed promptly from a plant where maximum heat transfer is sought at all times. The presence of excess condensate in an item of heat transfer equipment will reduce its efficiency, preventing it from achieving its maximum rated output and may also reduce its service...

Spirax Sarco’s steam trap range Steam trap operation Thermodynamic Thermodynamic Mechanical Ball float Inverted bucket Thermostatic Balanced pressure Steam trap types • Robust design giving excellent resistance to waterhammer and vibration Main features • High capacity • Continuous discharge of condensate for maximum heat transfer • Positive discharge with tight shut-off • Discharge condensate close to steam saturation temperature Mains drainage and all tracing applications. Typical applications Maximum body rating Maximum operating pressure • Excellent air venting capabilities • Will not back-up...

Thermodynamic steam traps How a thermodynamic steam trap works 1. On start-up, incoming pressure raises the disc and cooled condensate, and air is immediately discharged. 2. Hot condensate flowing through the trap releases flash steam. High velocity creates a low pressure area under the disc and draws it towards the seat. 3. At the same time there is a pressure build-up of flash steam in the chamber above the disc which forces it down against the pressure of the incoming condensate until it seats on the inner ring and closes the inlet. The disc also seats on the outer ring and traps pressure...

Thermodynamic steam traps - product range Sizes Maximum operating pressure Socket weld Screwed Socket weld Flanged Carbon steel Recommended installation Butt weld Stainless steel Screwed Socket weld Flanged Screwed Socket weld Flanged Socket weld Butt weld Flanged Alloy steel Stainless steel (Clean steam)

Mechanical steam traps Ball float mechanical steam traps Ball float (FT) mechanical steam traps have an integral air vent as standard and the options of a manually adjustable needle valve (SLR - steam lock release mechanism) and drain cock tapping, the FT range is adaptable to all applications where ball float traps are recommended and instantaneous removal of condensate is required. How a ball float steam trap works 1. On start-up a thermostatic air vent allows air to bypass the main valve (1) which would otherwise be unable to escape (a condition known as ‘air-binding’). 2. As soon as condensate...

spiraxsarco.com Ball float steam traps - product range Material Maximum operating Connection DN15 ½" pressure Vertical down Vertical down Screwed 14 bar g Flanged SG iron Vertical down ENP coated SG iron cover and stainless steel body Screwed Socket weld 32 bar g Carbon steel Screwed Socket weld Flanged Horizontal Vertical down Vertical down Socket weld Flanged 80 bar g Vertical down 65.8 bar g Stainless steel (Clean steam) Screwed Socket weld Flanged Screwed Socket weld Flanged Vertical down

Mechanical steam traps Inverted bucket mechanical steam traps Our inverted bucket steam traps employ a well-proven principle which relies on the difference in density between steam (a vapour) and condensate (a liquid). They have a robust design and incorporate a simple density sensitive bucket and lever mechanism. How an inverted bucket steam trap works 1. As condensate reaches the trap it forms a waterseal inside the body. The weight of the bucket keeps the valve off its seat. Condensate can then flow around the bottom of the bucket and out of the trap. 2. When steam enters the underside of...

Inverted bucket steam traps - product range Sizes Screwed Flanged Screwed Flanged Screwed Flanged Screwed Socket weld Flanged Screwed Socket weld Flanged Carbon steel Cast iron Maximum operating pressure Screwed Socket weld Flanged Screwed Socket weld Flanged Screwed Flanged Screwed Socket weld Flanged Stainless steel Alloy steel

Thermostatic steam traps 1 How a balanced pressure thermostatic steam trap works 1. On start-up, cold air and condensate enter the trap. As the capsule is also cold, the valve is open and the air and condensate are discharged. 2. The capsule warms up as the condensate approaches steam temperature. Its liquid filling boils, and the resultant vapour pressure acting on the diaphragm pushes the valve head towards the seat, fully closing at the selected discharge temperature before any steam is lost. 3. As the condensate within the trap cools, the vapour filling condenses and the internal capsule...

Balanced pressure thermostatic steam traps - product range Material Maximum operating pressure Sizes Connection Recommended installation 21 bar g Socket weld Carbon steel Screwed Socket weld Stainless steel Sandwich between flanges Screwed Socket weld Flanged Vertical down Vertical down Screwed Socket weld Flanged Vertical down Vertical down Stainless steel (Clean steam) Vertical down

Thermostatic steam traps 1 How a bimetallic thermostatic steam trap works 1. On start-up, the bimetallic element is relaxed and the valve is open. Cooled condensate, plus air, is immediately discharged. 2. Hot condensate flowing through the trap heats the bimetallic element causing it to pull the valve towards the seat. 3. As the hot condensate is discharged and approaches steam saturation temperature the bimetallic element closes the valve. When there is no flow through the trap the condensate surrounding the element cools causing it to relax and the upstream pressure opens the valve. Condensate...