two operational water pumps and a spare water pump can be operated at the same time by control of the constant flow control device; the energy-saving rate of a water pump system is significantly improved; and a protection function of the system is fulfilled so that the system is ensured to...
Bernd Stoffel, in Assessing the Energy Efficiency of Pumps and Pump Units, 2015 8.1.3 Reference Flow-Time Profiles The reference flow-time profiles that are needed to calculate the average electric input power P1,avg (the numerator of EEI) are defined in relation to the type of the system ...
Our company is mainly engaged in the development, production and sales of pumps. Main magnetic drive micro gear pump, with an annual output of 100000 gear pump production capacity. Since 2020, the company has entered the overseas international market, and our products have been successfully ...
Mining and wellpoint installation– gland water flow control to gland-packing/stuffing box and mechanical seals of centrifugal and slurry pumps. Machines and plants –ensure that an operator cannot wrongly adjust the fluid flow by mistake.
Do you need to protect your (centrifugal) pumps? Do you need to control and minimize gland flushing water flow rate? Do you need to limit the water taking near the source within your irrigating system? Do you want to save water in hotels, restaurants, waterpark, condominium, campings by...
3. energy-saving theory basis According to the fluid mechanics theory, most of the fluid transmission equipment (such as centrifugal pumps, fans, etc.) is lost The discharge Q is proportional to its speed n; the output pressure or lift P is proportional to the square of the speed n; ...
Power::6W/8W/10W;Color::black;Suitable for:50cm,60cm,80cm;Type:Aquariums & Accessories;Application:Fish;Shape:Cylinder;Material:Plastic;Volume:3l;type:Water Pumps;Feature:Sustainable;Place of Origin:CN;GUA;Model Number:DWP-3000;|Alibaba.com
vertical pumps Model CDMF90-65-ZHB Voltage 220V Speed 500-5500r/min Head 6m Flow rate 100m3/h Material Stainless Steel Motor Permanent Magnetic SYnchronous Motor Impeller stainless steel Certification ce Packaging and delivery Selling Units:
Usage:Water;Product name:CDL / CDLF vertical stainless steel multi stage water pump;Material:stainless steel;Certificate:ISO9001;Warranty:One Year;Theory:Centrifugal pump;Feature:High Efficiency;customized support:OEM;customized support:ODM;application:
1) Constant flow 定流量1. According to graphs constant flow chilled water systems and variable flow chilled water systems with primary pumps was presented and pumps characteristics was analysed. 用图解法比较空调工程中一次泵定流量系统与采用压差控制和台数调节相结合的一次泵变流量系统中冷冻水泵的工作...