1. Product Introduction
Multi-cycle circulating valve uses differential pressure and the reset force of the spring to control the movement of the piston inside the tool to open and close the circulation hole. When the circulation valve is opened, fluid can be circulated through the circulation hole and annulus to enable high-flow well washing. After the job is done, the differential pressure change can be used to close the circulation hole and circulation will be reestablished inside the tool. Multiple switch circulation valve can be used with motor, washing and other tools, which could improve motor life, improve annulus well cleaning efficiency, reduce the number of coiled tubing short trips and extend coiled tubing life.
2. Product Features
Differential pressure control, multiple switch
Opening or closing of the circulating valve are determined by the change of the circulating pressure
Torsional design can meet the drilling operation
Surface strengthening treatment, easy maintenance

3.Specifications

OD (mm)	ID (mm)	Connection	Length(mm) (mm)	Pressure Rating (MPa)	Tensile Strength (T)
54	10	1-1/2°AMMT.	820	50	38
73	20	2-3/8"PAC	930	50	45