
( Brand: Johnson Controls ), ( Manufacturer Part Number: D-251-202 ), ( Part Type: Actuator )
The Johnson D-251-202 Damper Actuator is a high-quality, reliable, and versatile mechanical device designed for controlling the flow of air or gases in various applications. This damper actuator is an essential component in HVAC (Heating, Ventilation, and Air Conditioning) systems, industrial processes, and other environments where precise airflow control is required.
The Johnson D-251-202 Damper Actuator is a pneumatically-operated device, which means it uses compressed air as its source of power. It features a 3/8-inch NPT air inlet and a 1/4-inch NPT drain, making it easy to connect to existing air lines and drain systems. The actuator is equipped with a 2-position solenoid valve, allowing for simple and convenient activation and deactivation of the damper.
The damper actuator is constructed using high-quality materials, ensuring durability and long-lasting performance. It features a corrosion-resistant aluminum housing and a stainless steel shaft, which can withstand harsh environmental conditions and heavy use. The actuator is also equipped with a precision-machined gearbox, ensuring smooth and precise operation of the damper.
The Johnson D-251-202 Damper Actuator has a maximum force output of 25 lbf (111 N) and a travel of 90 degrees, making it suitable for controlling dampers with a weight of up to 25 lbs (11.3 kg). It has a quick-connect linkage system, which allows for easy installation and adjustment of the damper. The actuator also features a built-in limit switch, which can be used to detect the end of travel and provide feedback to the control system.
In conclusion, the Johnson D-251-202 Damper Actuator is a high-performance, reliable, and versatile device that can be used in a wide range of applications. Its pneumatic operation, corrosion-resistant construction, and precise gearbox make it an excellent choice for controlling dampers in HVAC systems, industrial processes, and other environments where precise airflow control is essential.
Pros of buying a Johnson 251-202 damper actuator:1. Reliable brand: Johnson is a well-known and trusted name in the HVAC industry, which can provide peace of mind for long-term use.
2. Durable construction: The damper actuator is made of high-quality materials, which can withstand harsh environmental conditions and heavy use.
3. Easy installation: The damper actuator comes with clear instructions and easy-to-use mounting hardware, making installation a straightforward process.
4. Energy-efficient: The damper actuator can help optimize airflow and reduce energy consumption, leading to lower heating and cooling costs.
Cons of buying a Johnson 251-202 damper actuator:1. Price: Compared to some other damper actuators on the market, the Johnson 251-202 can be more expensive.
2. Limited compatibility: The damper actuator may not be compatible with all HVAC systems, so it's important to verify compatibility before purchasing.
3. Limited customization options: The damper actuator may not offer as many customization options as some other models, which may limit its flexibility in certain applications.
Conclusion:The Johnson 251-202 damper actuator is a reliable and durable option for optimizing airflow in HVAC systems. While it may be more expensive than some other options on the market, its high-quality construction and easy installation make it a worthwhile investment for many homeowners and businesses. However, it's important to verify compatibility with your specific HVAC system before purchasing, as well as consider whether the limited customization options are a drawback for your needs.
Recommendation:If you're looking for a reliable and durable damper actuator, the Johnson 251-202 is a solid choice. Its high-quality construction, easy installation, and energy-efficient features make it a great option for optimizing airflow in HVAC systems. Just be sure to verify compatibility with your specific HVAC system and consider whether the limited customization options are a concern for your needs. Overall, the Johnson 251-202 damper actuator is a worthwhile investment for many homeowners and businesses.
Johnson Controls damper actuator.
See photos.
Not sure if new or used psi spring.