1.The cold-hot alternate constant pressure water supply system is designed according to the requirements of customers, and is mainly 

suitable for the use of cold and hot water integrated capacity test for valve types. With PID frequency conversion and constant pressure 

water supply, under the pressure range of 0-2.0 mpa, the life test of the tested valve body is carried out under the condition of specified 

cold and hot water use with 5s on, 5s off and one on-off.

2.The main components of the test equipment are: central control system, test frame, constant pressure water supply device, heat and 

cold constant temperature control system

3.Water supply system adopts self-developed control system, PLC control, multi-stage booster pump as constant pressure water drive 

source. 7-inch touch screen and Mitsubishi PLC control, using the self-developed system to record the whole set of test and data on each 

station valve body to switch hot and cold water alternately and on-off action control. Equipment with simple operation, reliable operation.

 The related test data system can be saved automatically and exported via USB

Main technical parameters:

(1)test pressure range: 0.2-2.0 mpa (adjustable)

(2)test station: Unit Station 6 output

(3)product power supply: 0-36V 20A 

(4)max flow: 45L/MIN 

(5)test time: 0-9999s (adjustable

(6)test water: normal temperature tap water 

(7)cold water tank capacity in 250L 

(8)hot water tank capacity in 250L 

(9)temperature range: 3-55 ° C

(10)Test Mode: On-off mode, cold water mode, hot water mode, 

(11)on-off mode: 0-99999S break 0-99999S can be set 

(12)cooling mode: air-cooled mode 

(13)test water: circulating water 

(14)equipment size: about 1.6 m * 1.2 m * 1.8 M 

(15)RRB- equipment power supp380V380v. 7.5 kw