- Operation Animations
- Steam Traps
- Free Float® Steam Traps for Main Lines: SS series
- Free Float® Steam Traps (Low Pressure): JX/JHX series
- Disc-Type Steam Traps: ThermoDyne®
- Disc-Type Steam Traps: PowerDyne®
- Thermostatic Steam Traps: L-Series
- Temperature Control Traps: LEX-3N TZ
- Condensate Recovery
- PowerTrap® (Mechanical Pump with Built-in Trap): GT-10
- PowerTrap® (Mechanical Pump): GP-10
- Pressure Reducing Valves
- Pressure Reducing Valves for Steam: COSR
- Pressure Reducing Valves (Direct Acting): DR20
- Cyclone Separators
- Cyclone Separators for Steam (with Built-in Trap): DC series
- Strainers, Sight Glasses and Other
- Automatic Non-freeze Valves: NF6
- Air Vents
- Automatic Air Vents: VS1C
- Rapid Initial Air Vents: VA series
- Air Vents for Steam: LA series
- Air and Drain Traps
- Free Float® Air Traps: JA series
- Air Traps for High Viscosity Condensate: TATSU2
- Peripheral Equipment
- Steam Condensing Heat Exchanger : SR series
- High-Temperature Waste Water Heat Exchanger: SR-B series
Thermostatic Steam Trap L21S
The X-element is open at start-up because the system is cold. Large amounts of air and low temperature condensate are rapidly discharged through the open valve, thereby reducing the start-up time.
When the temperature inside the trap rises, it causes the thermoliquid inside the X-element to expand. The valve remains open until the temperature approaches the saturation temperature of the inlet steam pressure. Once the temperature inside the trap rises close to the saturation temperature of the inlet steam pressure, the valve closes.
When the inflow of condensate begins, the X-element is cooled causing the valve to open immediately, and condensate is discharged in the intermittent operation representative of disc type traps. If the amount of condensate is extremely small, however, the valve opens only slightly and a dribble-discharge type of operation takes place. In addition, the trap reacts with great sensitivity to temperature differences to rapidly discharge air that is close to the saturation temperature.