AP series low pressure switchDetailed product description：

AP low-pressure switch is a diaphragm type switch, and its switching element is a mercury switch. When fluid pressure acts on the membrane, the membrane with a hard core converts the pressure into pressure, causing the mercury switch to tilt at an angle and transition from one state to another. This pressure switch has a continuously adjustable operating point and a visible working status. Due to the use of mercury switches, the instrument is not afraid of corrosion and moisture, and has a service life of 10 years.  
The most successful application: using low range pressure switches to control water level, widely used in water supply systems.

AP low-pressure switches are divided into anti-corrosion and non anti-corrosion types. The anti-corrosion type and medium contact parts are made of stainless steel and PTFE rubber, while the non anti-corrosion type and medium contact parts are made of brass and nitrile rubber. AP switches are divided into explosion-proof and ordinary types.

AP low pressure switch

Product Technical Specifications

Range:	0-1250 water column 66Kpa-1Mpa
Ambient temperature	-40—80℃
Medium temperature:	-40—90℃
Repetitive error:	0.5%
Switching accuracy:	0.5%
Fixed dead zone:	(See table)
Overload performance:	150%
Switching components:	Mercury switch 220V/15A 220V/10A
Pressure interface:	M20 × 1.5 or adapter to other specification interfaces
Installation:	level
switch action Visible:	visible
lifespan	5-10 years
Setpoint setting method:	Active calibration with reference scale.

model	range	Switch dead zone		maximum pressure Mpa
		low-end	high-end
AP-33	0-1250 water column	127 water column	152 water columns	zero point one
AP-37	6.7Kpa-200Kpa	5Kpa	10Kpa	zero point four
AP-38	6.7Kpa-150Kpa	5Kpa	10Kpa	zero point six
AP-39	66Kpa-833Kpa	8.3Kpa	26Kpa	one point six

AP-XX	Model (specification)
Explosion proof Ex Non explosion proof N	explosion-proof
Anti corrosion C, not anti-corrosion D	anticorrosion
Single switch I Double switch II	Single switch, dual switch
Fill in the specific information for switching to E	Up switch point
Switch to F and fill in the details	Switching point below