Construction water supply and drainage mainly involves equipment including indoor water supply, drainage, fire fighting several categories.Water supply equipment: water pump, air pressure water supply device, water tank, pool.Drainage equipment: water seal device, oil separator, hair collector, ventilation equipment, sewage pump.High-rise water supply equipment: domestic frequency conversion water supply equipment is composed of pressure tank, water pump, electric control cabinet, pressure controller, safety valve, pressure gauge, check valve, gate valve and pipeline, etc., which is a perfect automatic frequency conversion water supply equipment.Fire fighting equipment: fire pump, fire tank, alarm equipment, control cabinet, detector, etc.