Hydraulic Mechanical Capillary Temperature Controlled Thermostat For Boiler And Oven

Place of Origin:	Zhejiang

Company Profile

ChangSheng Electric Appliance Company

Location:	Nanjing, Jiangsu, China (Mainland)
Business Type:	Manufacturer
Main Products:	Motor Thermal Protector, AC Thermal Protector, Thermal Overload Protector

Product Detail

Model No.:	WY-I

Product Description

Hydraulic Mechanical Capillary Temperature Controlled Thermostat For Boiler And Oven

Electro mechanical temperature controls with capillary phial
Rathgeber's capillary tube thermostats are used all over the world to control and limit temperatures (temperature range from -30°C to +400°C)
Rathgeber's products are manufactured professionally in accordance with latest technology and in compliance with the appropriate standard DIN EN 60730.
They operate safely and reliably, provided that specification required is clear at the start of the project.
Rathgeber supply temperature controls, sensors and limiters with phial and with capillary tube length according to customer specification for applications such as:

Boilers
Night storage heaters
Heat exchangers
Water heaters
Laboratory equipment

Ovens of domestic cookers
Washing machines
Dishwashers
Deep fat fryers
High pressure jet washers

Principle of operation
The pressurised system which operates according to the principle of expansion of liquid is the heart of a hydraulic thermostat.
It comprises phial, capillary tube and diaphragm.
Following an increase in temperature at the phial, the liquid expands in the capillary tube, causing the diaphragm to move. This movement activates a snap-action switch, causing opening or closing of switch contacts.
It is clear that a high degree of precision is required in manufacture, as a change in temperature of 1°K can cause a movement of the diaphragm between 0,002mm - 0,01mm.
It is therefore absolutely essential that the phial and capillary tube should not be squashed or otherwise damaged!
The thermostats are calibrated at room temperature 20°C. If during operation the capillary tube and diaphragm are subjected to a higher temperature the switching point will be changed. If the ambient temperature (TU) is known in advance this can be taken into account during the calibration process. Alternatively it is possible to compensate for the influence of ambient temperature upon the liquid at the diaphragm by fitting a bi-metal device.

Normally close, open on temperature rise, automatic reset, Earth Terminal Option
Working voltage and current	16 Amps @ 250 Vac and 16 Amps @ 400 Vac
Ø Phial diameter	3/6 mm
Cycles life	100,000 cycles
Open temperature	-35°C to 350°C
Temperature Tolerance	±3°C, ±4°C, ±5°C, ±8°C, ±10°C, ±12°C
Differential Temperature	depending on open temperature
Contact resistance	≤100 m
Capillary length	300~ 3000 mm; other lengths available upon request
Body temperature	T120 / T150
Faston Terminal Connections	6,3x0,8 mm DIN46244
Contact Closure Resistance:	≤50mΩ
Insulation Resistance	≥100MΩ
Speed of response	1.0/min
.Min. electric current	200mA

Typical Model	Operating temperature				Switch	Voltage (V)	Current (A)	Maximum Temperature Sensing part()
	H		L
	OFF()	DIFF(K)	OFF()	DIFF(K)
WY35A-	35±4	5±3	-35±4	5±3		400/250	16	70
WY75A-	75±3	5±3	25±5	5±3		400/250	16	110
WY110A-	110±4	6±4	60±8	6±3		400/250	16	120
WY190A-	190±8	8±4	50±8	8±4		400/250	16	160
WY250B-	250±10	10±5	120±12	10±5		400/250	16	250
WY350A-	340±12	12±6	60±15	12±6		400/250	16	400

Applications:

- 10 / +16 Refrigeration
-35 / +35 Fridge
0 / 40 Ambient
0 / 85 Boliers / Water heaters
0 / 93 Dishwashers
30 / 110 Bain Marie
60 / 200 Deep-fryer
50 / 250 Oven
50 / 300 Oven
Other ranges upon request

Competitive Advantage: