RHR Two-Stage Series Roots Blower
Category:
Scan the QR code
Add WeChat customer service
Product features:
● Configuration: Two-stage central heat exchanger configuration; 
● Cooling: The central heat exchanger employs counterflow cooling, synchronized with the main units on both sides for integrated and simultaneous cooling. This results in a highly integrated system that is easy to manage and operate.
● Pressure ratio: 1:1 pressure ratio;
● Heat exchangers: The heat exchangers come in various forms, including shell-and-tube and plate types;
● Impeller profile: A unique three-lobe CONCH profile that features small airflow pulsations, high volumetric efficiency, energy savings, and low noise levels.
● Transmission methods: Belt two-stage, direct-coupled two-stage;
● Air inlet and outlet: Features a unique diamond-shaped air inlet structure for smooth airflow;
● Gears: Grade 5 precision gears with high transmission accuracy and low noise;
● Fuel tank: Single/dual fuel tank configurations available for flexible setup;
Main technical specifications:
◆ Flow rate: 0.6–120 m³/min;
◆ Pressure increase: 58.8–200 kPa;
◆ Applicable speed: 500–1600 RPM;
Application:
★ Important Notes: Selecting a two-stage system is complex. To ensure the highest design efficiency, please contact our company for direct design and selection assistance.
Product Overview:
The RHR two-stage tandem Roots blower is a new-generation product developed and designed to meet the demands of high-pressure, high-flow applications. Compared with high-speed centrifugal fans and multi-stage centrifugal fans, it offers advantages such as no surge, no stall, strong adaptability to various operating conditions, lower initial investment cost, and reduced energy consumption.
The RHR two-stage fan employs rigorous calculations to ensure that, under rated operating conditions, the pressure ratios of the front and rear stages are in a 1:1 ratio. This reduces the absolute value of pressure differences across each stage, minimizes internal leakage, and lowers energy consumption. Moreover, with its counterflow heat exchanger design, the fan significantly enhances interstage air intake efficiency. As a result, when operating under conditions exceeding 120 kPa, this fan achieves energy savings of over 30% compared to conventional fans, making it capable of replacing traditional high-flow equipment such as gear-driven high-speed centrifugal fans and multi-stage centrifugal fans.
The RHR fan adopts a three-stage cooling system consisting of a front-stage main unit, an intercooler, and a rear-stage main unit, all integrated into a single design. This system requires only one cooling water pipe to ensure that the entire unit is protected by water cooling. The design features high redundancy, excellent cooling performance, and ease of installation and operation.
Keywords: High-temperature Roots blower, Biogas booster fan
If you have any suggestions, please leave us a message or reach out to us—we’ll respond within one business day of receiving your message.
Service hotline:
Address: No. 666 Fengcheng New Street, Yudong Town, Haimen City, Jiangsu Province, China.
After-sales service: 0086-513-68903288
Email: 13906298796@139.com
Follow us
Copyright © 2025 Nantong Rongheng. All rights reserved.
