Overview and Application
The BOLON thermal and electric electric steam trap of the United States is a new generation of steam trap specially developed, designed and operated based on the water drainage of thermal power plant equipment. The full flow design of the pneumatic trap reduces flow resistance, reduces erosion, and increases service life. The valve core and valve seat of the pneumatic trap are made of solid carbide, which can close internal leakage ≤ Class VI. The removable middle cavity seal design prevents external leakage. Convenient maintenance and other features. It can also be used in flammable and explosive situations. Cut off or open the valve according to the signal from the control system or instrument. In order to achieve the requirements for the use of controlled parameters. Therefore, pneumatic traps are widely used in remote control in thermal power plants and other industries.
Compared with other types of valves, the main concern of pneumatic traps is that the flow channel is smooth. The resistance is small and the flow coefficient Cv value is large; compared with the stop valve. The switch is flexible and fast. No large torque is required and the operation is simple. When the valve is in the open or closed position, no medium flows through the sealing surface between the trap and the valve seat. It is isolated from the medium and will not cause erosion and cavitation of the sealing surface. , long life, four times that of ordinary stop valves, long life and high reliability.
Technical Parameters
Nominal diameter: DN15-DN100 (1/2"-4")
Nominal pressure: 1.0Mpa-42Mpa (150LB-2500LB}
Applicable temperature: -20℃≤T≤570℃
Applicable media: water, steam, oil
Valve body material: 25+Stellite21: 12Cr1MoV+Stellite21;
0Cr17Ni12Mo2+Stellite21：F91
Connection method: welding connection, butt welding connection
Design and manufacturing: ASME B16.34a
Structure length: ASME B16.10
Flange type and size: ASME 16.5
Butt weld ends: ASME B16.25
Inspection and Experimentation: API598
Features
The integrated valve design is compact and safe, and the ball and downstream valve seat are made of Inconel-718 alloy. Surface rocket spraying process, hardness up to RC72
The ball and downstream valve seat are ground with "one-to-one" precision matching to ensure zero leakage
All made of forged materials
Size 1/2”-4”
ANSI pressure rating 900-4500 pounds