Working Principle

YK type pressure controller using butterfly metal film as sensing element,When the medium (liquid or gas)pressure within the pressure system is above or below the rated security pressure ,the dish mental diaphragm within the system jumps instantaneously ,Thus to push the switch contact to be connected or disconnected through a connecting rod .When the pressure drops to the rated recovery value,the dish mental diaphragm is instantaneously reset and the switch is automatically reset.

Application

YK series pressure switch is widely used in hydraulic and pneumatic system pressure control of regrigeration units ,Various types of air conditioning ,air compressor,heat pump,oil pump and air pump,engineering machinery ,mining machiinery,contruction machinery and other industrial equipment with needs of medium pressure regulation and pressure system protection.

Characteristics

1)It can be manufactured according to any pressure value selected by users within the pressure ranger of -100KP~10MPA.

2)Unipolar single-throw or unipolar double-throw,Normally open or normally closed switch contact structure options can be selected by users, While the sealed stainless steel sensor is safe and reliable.

3)By using screw quick coupling or copper tube welded structure, The products are flexibly installed and easily used,with no special installation and fixing mode .

4)Insert and wire-type electrical connectors can be selected by user.

Technical Parameters

No	Item	Standard Value	No	Item	Standard Value
1	Setting range of pressure value	-100KP~10MPA	8	Erection joint method	Normally 1/8 , 1/4 and 7/16. Could be customized
2	Tolerance range of pressure switch	1.45~14.5PSI 0.01~0.1MPA	9	Contact form	Normal close or Normal open
3	Rated Voltage	AC220V50Hz/ DC12/24/36/48V	10	Rated Current	3A/5A/10A
4	Working temperature	-35℃--120℃	11	Maximum burst pressure	No burst phenomenon in 1min at ≤5000PSI(34.5MPA)blast pressure
5	Life cycle	>100000times	12	Dielectric strength	No break down or flashing in 1min at AC1500V/50HZ/min
6	Insulation resistance	Between terminal and housing≥100MΩ	13	Over pressure test	Increase to 10Mpa,No burst and leakage in 10mins
7	IP Grade	IP65

hvac air condition pressure switch r134a

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