PTC Water Heater


1. Configuration.

Type

Specialty

Excellence

shortcoming

Others

Transflux heater

Water transflux  hole of the heater

Large power, quick heating

Water must flow by itself or by a pump.

Water can be heated in tap water supply

Immerging
heater

Heater immerge at bottom of water tank

Heat quiet water, with uniform temperature

Rising time is too long to heat the water in whole tank

Fit for large power

Underside  heater

Heater is placed underside the tank

Heat quiet water, with uniform temperature

Rising time is too long to heat the water in whole tank

Fit to maintain temperature of water

Double insulators heater

With two layers insulators and two metal shells

Top safety

Higher cost

No electric leakage on surface when PTC was burn

periphery of pipe heater

Around the periphery of metal  pipe

The heater can contact the pipe very fit

The power can not be large; energy can not be used very effectively

Suitable for the situation the pipe can not be changed

Temperature control water heater

With a temperature controller,  the temperature of the water can be adjusted

The temperature of  water Can be controlled with accuracy of 4℃

Larger volume of the system, more cost.

Suitable for the situation necessary to control the temperature of water

 

Various materials.
1) Aluminium shell or pipe, it is not good in resistance to corrosion. Nickel plating or anti-corrosion coating could be better in preventing corrosion.
2) Brass or copper shell or pipe, it is good in resistance to corrosion. But it costs higher.
3) Ceramic shell, it’s good in resistance to corrosion. But its heating power could not be very large.
4) Stainless steel shell or pipe, it’s very excellence for preventing corrosion, and meets food safe standard. But it costs higher and has bigger bulk..
5) Anti-corrosion coated aluminum shell, it's corrosion resistance, but the cost is quite high.

2. Some samples of uses.
PTC water heater could be used for shower, footbath, washing hand, vegetable and dish, drink warmer and boiler, fermenter, tea warmer, coffee wamer, milk warmer, vapor generator, sauna bath.
They could be used in heating diesel oil, gasoline or other liquid. Using PTC as a heating element could prevent the oil burning, it’s safer.
3. Notice in appliance.
PTC as a heating element, it fits for high safety, slap-up product. In some situations, it’s low cost and convenient.
The electric power of PTC water heater changes with the temperature of water. The higher is the temperature of water, the smaller is the power.
Using higher switch temperature PTC can get higher power, 220~270℃switch temperature PTC is selected usually. But if select too high switch temperature, the reliable will reduce.
Power is almost same to change the voltage twice or decrease of 1/2.


4. Current products.

Immerging heater
008

Shape

Width

Thickness

Length in water

Screw or flange

Applied
voltage

Surface temperature without water

Power
in 25℃
water

Aluminium  tube

9.7mm

5.2mm

75mm

as required

220VAC

250℃

70W

Aluminium  tube

13.2mm

5.2mm

75mm

as required

220VAC

250℃

100W

Aluminium  tube

21.5

6.8

75mm

as required

220VAC

260℃

160W

*Aluminium  tube

21.5

12

100mm

as required

220VAC

260℃

450W

*Aluminium  tube

21.5

24

200mm

as required

220VAC

260℃

2000W

Aluminium  tube

32

7.8

150mm

as required

220VAC

260℃

400W

Aluminium  tube

65.0

7.8

200mm

as required

220VAC

240℃

1000W

round brass tube

 

Φ11.5

75mm

as required

220VAC

240℃

100W

# Stainless steel

25

13

200mm

as required

220VAC

250℃

700W

# Stainless round tube

 

Φ25

200mm

as required

220VAC

250℃

1100W

# Stainless round tube

 

Φ35

200mm

as required

220VAC

250℃

1500W

+ Stainless steel double insulators

 

Φ25

200mm

as required

220VAC

250℃

900W

+ Stainless steel double insulators

 

Φ35

200mm

as required

220VAC

250℃

1200W

T shape

Plane

86X74

Heater

55/40/8

220VAC

260℃

300W

T shape

Plane

86X74

Heater

55/40/22

220VAC

260℃

800W

Notice:
1) Applied voltage could be 12~36V, 100~380V.
2) The length could be selected between some range, larger power could be made with longer tube.
3) The fixing connected screw or flange could consist of brass, aluminum or stainless steel. The shape could be selected by customer.
4) The surface temperature without water, could be between 50~260℃, the higher is this temperature, the larger is the power.
5) The stable temperature of water would be affected by the power of PTC, cubage of water, the shape and material of container, heating dispersion, vapor of water.
6) For preventing corrosion, the surface can be nickel plating, paint anti-corrosion coating. Stainless steel shell, copper shell could be selectted.
Used for special high security, there are 2 layers of insulator and 2 layers of metal protective layer. That can prevent the electricity leakage on the heater caused by breakdown of PTC ceramic.

 

Transflux water heater:

005

007017

 

Shape

Total length

Width

Height

Inner
diameter of pipe

Applied
voltage

Surface temperature in air

Power
in 25℃
water

Aluminum pipe

150mm

21.5

20.5

Φ10

220VAC

260℃

380W

Aluminum pipe

150mm

21.5

23.5

Φ13

220VAC

260℃

400W

Aluminum pipe

300mm

21.5

23.5

Φ13

220VAC

260℃

820W

Aluminum pipe

200mm

21.5

25

Φ13

220VAC

260℃

1200W

Aluminum pipe

400mm

21.5

25

Φ13

220VAC

260℃

2500W

*Aluminum pipe

200mm

33

48

Φ26

220VAC

240℃

1500W

*Aluminum pipe

400mm

33

48

Φ26

220VAC

240℃

3300W

Aluminum pipe++

170mm

39

39

Φ16.5

220VAC

260℃

3000W

Aluminum pipe++

400mm

39

39

Φ16.5

220VAC

260℃

9000W

*Aluminum pipe

200mm

48

48

Φ15

220VAC

260℃

4500W

*Aluminum pipe

400mm

48

48

Φ15

220VAC

260℃

9000W

*+Aluminum pipe double insulating

200mm

48

48

Φ15

220VAC

260℃

4500W

*+Aluminum pipe double insulating

400mm

48

48

Φ15

220VAC

260℃

9000W

#Stainless steel pipe

250mm

26

35.5

Φ15

220VAC

260℃

1000W

#Stainless steel pipe

400mm

26

35.5

Φ15

220VAC

260℃

1500W

#Stainless steel pipe

250mm

35.5

35.5

Φ15

220VAC

260℃

1800W

#copper pipe

400mm

35.5

35.5

Φ15

220VAC

260℃

3200W

*Multi-pipe assembly

300mm

200

65

Φ26

220VAC

260℃

12000W

Twine type

Total length

Out diameter

Diameter of pipe

Thickness of pipe

Applied
voltage

Surface temperature in air

Power
in 25℃
water

Brass pipe**

80mm

50mm

5mm

0.4 mm

220VAC

260℃

800W

Brass pipe**

130mm

50mm

5mm

0.4 mm

220VAC

260℃

1600W

Aluminium pipe**

80mm

50mm

5mm

0.4 mm

220VAC

260℃

800W

Aluminium pipe**

130mm

50mm

5mm

0.4 mm

220VAC

260℃

1600W

Stainless pipe**

80mm

50mm

5mm

0.3 mm

220VAC

260℃

700W

Stainless pipe**

130mm

50mm

5mm

0.4 mm

220VAC

260℃

1400W

Notice:
1) Applied voltage could be 12~36V, 100~380V.
2) The length could be selected properly by customer, larger power could be made with longer pipe.
3) The connected terminal, diameter, shape, could be selected by customer.
4) The surface temperature without water, could be between 50~260℃, the higher is this temperature, the larger is the power.
5) The temperature of out-water could be affected by the power of PTC, flux of water, heating dispersion..
6) For preventing corrosion, the inner of aluminium pipe can be nickel plating, anti-corrosion coating. Stainless steel pipe, copper pipe could be selectted.
7)TUV approval number: B 09 06 46746 004,B 09 08 16746 008.
8) National patent, mark *. Patent number ZL 2010 2 01356626.0
9) National patent, mark #. Patent number ZL 2011 2022 0811.4
10) National patent, mark +. Patent number ZL 2011 2012 6016.9
11) Twine pipe water heater, mark **,Patent number ZL  2012 20370684.0.
12) National patent, mark ++. Patent number ZL 2012 2 0178696.3.

Transflux water heater with plug
006

Length of shell

Diameter of shell

Connecting terminal

Applied voltage

Temperature without water

Power at 25℃ entered water

150mm

Φ50

4/8’

220VAC

80℃

1300W

200mm

Φ50

4/8’

220VAC

80℃

2000W

150mm

Φ60

4/8’

220VAC

80℃

2200W

200mm

Φ60

4/8’

220VAC

80℃

3600W

250mm

Φ60

4/8’

220VAC

80℃

4500W

Notice:
1)  Applied voltage could be 12~36V, 100~380V.
2)The length could be selected by customer between some range, larger power could be made with longer pipe.
3)The surface temperature without water, could be between 50~260℃, depending on the switch temperature of series-wound thermostat.
4)The temperature of exit water depends on heating power, temperature of entered water, and rate of water flux.
5)National patent, patent number ZL 2010 2 01356626.0

 

Consumed power for transflux heater


Flux of water

Initial temperature

Final temperature

Heating efficiency

Consumed power

Stable current on 220V voltage

1L/ min

20℃

40℃

90%

1.5KW

6.8A

3L/ min

20℃

40℃

90%

4.5KW

20.5A

5L/ min

20℃

40℃

90%

7.8KW

35.5A

10L/ min

20℃

40℃

90%

15.6KW

70.9A

 
Underside water heater:

Shape

Width

Thickness

Length

Applied voltage

Surface temperature in air

Power in 25℃
of water

aluminum plate

13.7

5.2

65mm

220VAC

260℃

80W

aluminum plate

25

6.5

65mm

220VAC

260℃

120W

*aluminum plate

25

12.5

65mm

220VAC

260℃

220W

aluminum plate

35

7.0

45mm

220VAC

260℃

100W

*aluminum plate

48

12

60mm

220VAC

260℃

350W

*aluminum plate

48

12

80mm

220VAC

260℃

500W

aluminum plate

63

7.0

80mm

220VAC

260℃

240W

aluminum plate

90

7.0

120mm

220VAC

260℃

680W

aluminum plate

90

13

120mm

220VAC

260℃

1200W

round plate

Φ85

7.0

 

220VAC

260℃

500W

*round plate

Φ85

13

 

220VAC

260℃

800W

Notice:
1) Applied voltage could be 12~36V, 100~380V.
2) The length of the plate could be selected by customer between some range, larger power could be reached with larger plate. But larger plate might result bad heating conduction because the connecting gap on interface.
3) The surface temperature without water, could be between 80~260℃, the higher is this temperature, the larger is the power.
4) The stable temperature of water could be affected by the power of PTC, cubage of water, the shape and material of container, heating dispersion, vapor of water.

 

Heater around pipe:

006

Length  /mm

Width /mm

Height /mm

Inner diameter /mm

Voltage /V

Surface temperature /℃

Power at 25℃ water

100

38

35

Φ20

220VAC

260℃

200W

100

40

39

Φ25

220VAC

260℃

280W

100

47

45

Φ32

220VAC

260℃

340W

100

50

47

Φ35

220VAC

260℃

400W

200

50

47

Φ35

220VAC

260℃

800W

100

92

90

Φ76

220VAC

260℃

600W

200

92

90

Φ76

220VAC

260℃

1200W

100

110

107

Φ93

220VAC

260℃

700W

200

110

107

Φ93

220VAC

260℃

1500W

100

125

122

Φ108

220VAC

260℃

800W

200

125

122

Φ108

220VAC

260℃

1600W

100

135

132

Φ118

220VAC

260℃

900W

200

135

132

Φ118

220VAC

260℃

1800W

Notice:
1) Voltage could be selected 12V, 24V, 36V, 100~120V, 220~240V, 380V.
2) Length could be between 50mm and 500mm.
3) The surface temperature without water, could be between 80~260℃, the higher is this temperature, the larger is the power.

 

Liquid heater with temperature controller

008

Notice:
1) The temperature of water could be controlled by adding a temperature controoler, or thermostat.
2) The power can be customer’required.
3) Volltage can be 220V or other voltage.
4) Temperature control tolerance is ±2℃.



Application Design
·PTC immerging heater, our company has developed by using PTC elements could be used to maintain constant temperature, without the traditional method of using temperature-controlling instruments to control the exterior temperature;

·It enjoys a low cost and is more endurable and will not be damaged when used without water;

·It is applicable to a wide range of voltages and we could devise them according to the requirements of different household electric appliances;

Specifications

·Safe and secure
·Automatic temperature control very long life.
·Suitable for surface temperatures below 260 degree Celsius
·Rated voltage: 6 to 240V
·Power: 20-800W
·Insulation voltage: 3750V/s
·Surface temperature: 100-290℃

Customized orders as per client’s specifications available, PTC heater is a smart heater

Classify by structure for PTC Water heating

Type

Specialty

Excellence

shortcoming

Others

Transflux heater

Water transflux in hole of the heater

Large power, quick heating

Water must flow

It can be used to heat tap water supply

Immerging
heater

Heater immerge at bottom of water tank

It can be used to heat quiet water

It is long time to heat the water in whole tank

Used to maintain temperature of water




Application Design

 

·PTC transflux heater, mainly applied to the refluxing of high-grade foot bath, it has more advantages than the traditional heating material (for example: quartz glass tube), such as convenient installation, long life, is not easy to damage.

·Shape and dimension may according to the customer actual requirements to customized.

Specifications:

·Safe and secure
·Automatic temperature control
·Suitable for surface temperatures below 260 degree Celsius
·Rated voltage: 6 to 240V
·Power: 20~2000W
·Insulation voltage: 3750V
·Surface temperature: 80~290℃
·Customized orders as per client’s specifications available

structure