The pressure range of a blower is relatively wide:

  • Low-pressure blowers typically have an outlet pressure of 1–10 kPa and are commonly used for simple ventilation and air exchange applications.
  • Medium-pressure blowers generally operate within 10–100 kPa and are often used for pneumatic conveying and similar industrial processes.
  • High-pressure blowers can reach 100–1000 kPa or even higher, making them suitable for specialized industrial environments.

An induced draft (ID) fan mainly generates negative pressure to extract gases. In boiler draft systems, the pressure differential is typically around 1–3 kPa, which is sufficient to draw flue gas from the boiler and discharge it into the atmosphere.

Customer Testimonials

Trusted by industrial partners across 30+ countries — real feedback from our global clients.

“We’ve been using Dajing’s 9-19 high-pressure centrifugal blowers for our dust removal system. The airflow performance is excellent, and the noise level is much lower than our previous models. Truly reliable quality.”

Ali Rahman Maintenance Engineer, Power Plant – UAE

“The 4-72 series blowers from Dajing have been running non-stop in our cement production line for two years with zero breakdowns. Their team provided fast delivery and technical guidance during installation.”

Sergey Ivanov Production Manager, Cement Factory – Kazakhstan

“Our HVAC contractor switched to Dajing’s products for a recent government building project. The energy efficiency and build quality exceeded expectations. Definitely a long-term partner.”

Mohamed Al-Farid HVAC Project Supervisor, Government Contractor – Saudi Arabia

“We ordered customized GY4-73 induced draft blowers for our boiler system. Dajing’s engineers adjusted the impeller size precisely to our parameters — performance and after-sales support were outstanding.”

Nguyen Thanh Binh Technical Director, Thermal Equipment Co. – Vietnam

FAQ's

Didn’t find the answer you were looking for?
Contact our engineering team for a customized solution.

Our engineers will recommend the suitable blower type based on your air volume, pressure, temperature, and working conditions.
You can also send your technical parameters or drawings directly for evaluation.

All Dajing blowers are ISO9001 and ISO14001 certified.
Depending on customer needs, we can also provide CE, EAC, or other international compliance certificates.

Yes. We offer fully customized blower systems to meet special environmental or industrial requirements, including high-temperature, dust-removal, and corrosion-resistant designs.

Generally 7-15 working days after receiving the deposit, depending on the order quantity and customization level.

Yes. We provide online technical guidance, spare parts supply, and on-site service if required.
Our goal is to ensure your blower operates efficiently throughout its service life.