NQ-DR(L) Stainless steel vertical multi-stage variable frequency pumpDetailed product description：

Product Overview
The NQ-DR (L) stainless steel vertical multi-stage variable frequency pump is composed of a dedicated PID built-in frequency converter and a single stainless steel vertical multi-stage centrifugal pump, ensuring accurate pressure signals; Controlled by computer program, with frequency conversion adjustment function; Under constant pressure, by adjusting the speed to achieve flow regulation, this constant pressure variable frequency water supply feature meets the high efficiency and energy-saving requirements of various industries. It is about 30% more energy-efficient than ordinary constant pressure variable frequency water supply systems. When the flow rate decreases, the head decreases by 75% and the power decreases by 87.5%; And it has the functions of no water stop, water shortage and pressure loss protection, fully automatic variable frequency speed regulation constant pressure water supply device, and auxiliary pump long-term operation to ensure long-term constant pressure and constant temperature of the pipeline (water circulation flow); Protection functions: reverse, high and low voltage, phase loss, leakage, overload and overheating, instantaneous power outage protection, fault cause and operation function display.

Use
NQ stainless steel vertical multi-stage variable frequency pump is suitable for water supply systems, washing systems, air conditioning, circulation systems, water treatment systems, fire protection systems, boiler water supply, and various industrial sites. Transport thin, clean, and free of solid particles or fibers in liquids such as drinking water, cooling water, and condensate. Transporting chemical liquids with mild corrosion and without solid particles or fibers

working conditions
Control method: Variable frequency control
Installation location: Indoor
Maximum ambient temperature:+40 º C
Medium temperature: -15 to+120 ℃
Maximum flow rate: 180 m3/h
Maximum lift: 200m
Speed: 1500~2900 rpm
Maximum operating pressure: 25kgf/cm2