2ZYB0 Mine-Air Liquid Injection Pump (hereinafter referred to as the injection pump) is composed of a high-pressure water pump, a combination control valve (safety valve), and components such as the base and housing. It features an advanced structure and fine craftsmanship, capable of continuous, uninterrupted operation for 24 hours. The injection pump is powered by underground compressed air and is used for replenishing hydraulic supports and individual hydraulic props during comprehensive mining, excavation, and temporary support. This product boasts advantages such as compact size, light weight, ease of movement, and simple operation.