J metering pump is classified as plunger type and diaphragm type, covering 25 frame series and more than 4000 specifications. Capacity ranges from 0.2 ~ 30000L/h, maximum discharge pressure up to 50Mpa, fluid temperature from 90 ~ 450°C, and viscosity up to 6000mm²/s.

The J metering pump is widely used in petroleum, chemical, power plant, metallurgy, environment protection, pharmacy, food, national defence and so on. And it can be developed into special purpose metering pump such as electric control, pneumatic control, variable speed and frequency, hi-temperature, hi-viscosity, suspension, liquefied gas, plastic pump-head and double pump-head types.