1. ZYL series twin lobes roots blower performance data:
Model: ZYL52-94WD
Rotary speed: 580-1450r/min
Air flow capacity: 18.3-376m³ /min
Working pressure: 9.8-49kpa
Motor power: 4.5-400kw
2. three main type series blower of zhangyuan:
Our Company introducing advanced technology to produce ZYL series, ZYSR-H high-pressure series, ZYSR series roots blower. It has a lot of characteristics like large capacity, low noise, energy efficient, smooth operation, longtime working life and so on. Widely used in sewage treatment, mining, metallurgy, chemical industry, light industry, building materials, electricity, flour, aquaculture, vacuum packaging and so on.
3. Roots blower features
100% oil free air delivery.  
Alloy steel hardened and ground timing gears.
Anti-friction bearings   
Rotary oil sealings
Rigid one piece CI casing and side plates   
Adjustable machine feet permit both horizontal & vertical flow of medium
Easy rotor timing setting   
No vanes, valves or rings to wear.    
Large inlet and outlet connections for minimum loss   
Improved volumetric efficiency and reduced operating temperatures.    
Alloy steel toughened shafts ground to close tolerances