water treatment cooling tower equipment 1.modelZYSRH50 2.pressure9.8-98kpa ... packed the roots blower as your special requires.(for example add blower shelves,vacuum pump)We'll ... ,V-belt,Inlet Silencer(with air filter),Safety Valve,Pressure Gauge,Lubricating Oil,Anchor Bolt,flexible joint, ... low noise assured o Standardized product with strict quality control o Advanced technique o Six-shaft method to ...