Products name: DN125 (5 inch) roots blower 
Brand:RH
Model:RH12542
Place of orign:Nantong China
Drive :direct coupling / V-belt transmission
color: blue or silver
Motor brand: Jianghuai , Wannan,Teco  
Power:22kw /18.5kw/37kw
Motor protection class: IP55, Variable frequency motor available
Weight:750kg approx.
Flow capacity:15-25m3/min
Pressure:9.8-98kpa
Rotation speed:1200rp-2050rpm
Rated Voltage:380V
lubrication: oil
Noise: less than 81dB(A) 1 meter distance from roots blower 
cooling water connection size:DN15,G1/2 male thread for inlet pipe, female thread for outlet pipe
What is the advantage of water cooling roots blower?
water cooling roots blower are advanced designed for tackling harsh working conditions such as high pressure which may higher than 68kpa, thus we suggest using water cooling type roots blower. The cooling water give the blower better cooling effect to reduce blower temprature. Thus the blower can oprerate for long time at a higher pressure case.
Application: Water cooling roots blower are widely used in sewage treatment plant, wastewater treatment plant
for water aeration or v-type filter backwash.The water type is suitable when resistance is higher than 68.6kpa.
water cooling can reduce the blower body temperature and have a better performance. The water inlet is located at middle level and outlet is at the top. The drain is at the bottom of the blower which should be closed when operation. When the room temperature is below 0 degree, the cooling water should be drained in case frozen

Company overview and site application








Company Info.
Nantong Rongheng Environmental Equipment Co.,Ltd. is a state-level high-tech enterprise specialized in manufacturing environmental protection equipment and integrating R&D,manufacturing ,sales and technical services.Leading products mainly include Roots type blower,Air foil suspension blower,MVR compressor,Multistage centrifugal blower,Rotary blower etc. With technical competence,advanced design methods,state of the art processing equipment,our products has successfully broken through the high energy consumption and big noise bottleneck ,which making us outstanding in this industry.

Why choose us?
Nantong Rongheng Environmental Equipment Co., Ltd is Previously known as Nantong Hengrong pump factory. Our previous company kicked off in 1993, the earliest three lobe roots blower manufacturer in China.We have accumulated almost 30 years hands-on experience and we can offer a wide range of standard products but distinguish ourselves by providing custom solutions with minimal additional cost. Rongheng's commitment is to provide the right product for your application supported by our innovative team of engineers.