U-Shaped Tubular Heater with screw thread

Tubular heaters are produced using Incoloy, stainless steel or Copper sheath materials and also there is huge variety of selection of termination styles available. Insulation of Magnesium offers greater heat transfer. Tubular heaters can be used in any application. Straight tubular can be inserted in machined groves for conductive heat transfer and formed Tubular provides consistent heat in any type of special application. Its applications areas are: Plastic processing machineries ;Engineering Industry ;Packaging machinery ;Shoe making machineries ;Foundry Equipment ;Radiant Surface heating ;Hot Runner Mould Systems etc

  • SFM
  • China
  • 7-9 day
  • Information

redring tubular heaters

Flange size 

DN 40 to DN 800

Screw plug size

1"- 3"

Immersion Length 

150mm- 1500mm 

Heating Element 

3 elements, 4 elements, 6 elements, 10 elements etc 

(under customer request)

Wattage density

2-8W/cm2

Voltage

UP to 600V 

Sheath Material

Stainless Steel 304 316L 310S Copper Incoloy 800 840

Built in thermostat well

Built-in thermostat wells can be installed upon request. When ordering, please provide length BUILT-IN THERMOSTAT WELL and internal diameter

Threaded heating tube


Wattage Tolerance

+5%, -10%

Resistance tolerance

+10%, -5%

Insulation resistance (cold)

≥ 500 MΩ

Maximum leakage current (cold)

≤ 0.5 mA

Dielectric strength

1500 V

Tube diameter

Φ2mm-Φ30mm

Tube Material

Fe, SS304;SS316,SS321,ss202 etc

Insulation Material

High-purity Mgo

Reisistance wire element

Ni-Cr or FeCr

Lead Connection Option

Crimped or Swaged leads

Lead and type of connection leads

10" Fiberglass Standard(Wire options,silicone high temperature frberglass)

Voltage and power

customized

Shape

customized according to drawing

Warranty

one year


Tubular Heater

2: How to choose the power size

The power calculation formula is: required power (kw) = weight of water (kg) x temperature difference x specific heat capacity of liquid {kJ/(kg C)}/time (seconds)

Example: What is the power of the electric heating tube required to heat 1000kg of water to 50°C with an initial temperature of 10°C in 1 hour (3600s)? The specific heat of water is 4.2, which can be substituted into the formula to obtain 46.66KW. There is heat dissipation during the actual heating process, and the required wattage needs to be larger than the theoretical calculation value.

redring tubular heaters

3: How thick the wire is to choose

The higher the wattage, the faster the heating speed, but it still needs to be able to withstand the line and the circuit breaker. The thickness of the wire and the open circuit can be selected according to the current in the line

1: The current of a single 220V electric heating tube: connect 1 zero to 1 fire, line current = power ÷ 220

2: A single 220V electric heating tube is connected to three-phase power by Y connection:

Connect 3 fire wires, line current = power ÷ 380-1732

3: Single 380V electric heating tube △ connection to three-phase electricity:

Connect 3 live wires, line current = power ÷ 380 ÷ 1732

 


1 zero 1 fire connected to single-phase electricity

The Y connection method is included in the three-phase electricity

△The connection method is included in the three-phase electricity

    220V  6KW

Line current = 27.2A

Line current = 9.1A

- - -

    220V  9KW

Line current = 40.9A

Line current = 13.6A

- - -

    380V  6KW

- - -

- - -

Line current = 9.1A

    380V  9KW

- - -

- - -

Line current = 13.6A

    380V  12KW

- - -

- - -

Line current = 18.2A

Threaded heating tube

4: Leakage, installation and use precautions

The new heating tubes are tested and delivered without leakage. As the heating tube is damaged during use, it will leak electricity. Therefore, the equipment shell must be reliably grounded and a leakage protection switch must be installed.

The replacement and installation of the heating element needs to be operated by a professional master to avoid safety hazards caused by improper operation.

total accident. Although the heating tubes have been tested before leaving the factory, it is recommended to use the

Use a meter to measure whether it is energized, use an insulation shaker to measure whether it is leaking, if it is in good condition, then

Install. In this way, if there is a problem after installation, the cause of the heating rod can be ruled out, and then the cause can be found from other aspects.

Tubular Heater


5:Is there electricity in the water? Consequences of improper use

When the heating rod is intact, there is a slight current in the water, which does not exceed the safe value. However, when the heating pipe is always broken, and the user's leakage protection device also fails, it is unsafe if it is broken at the same time. It is recommended that the human body should not touch water when the heating is powered on.

When the heating rod is energized, it must be completely submerged under water. If the heating rod is exposed to the water and burns dry, the tube may burst. Burning out the heating tube is a trivial matter, and it may also cause line safety problems.


6: common fault suggestion troubleshooting

· No fever? Slow fever?

A multimeter can be used to measure whether the resistance value of the electric heating tube is normal. If the resistance value is infinite, then

The heating tube has been blown. Use a clamp ammeter to measure the line current to see if the line current is equal and how much it deviates from the rated value.

Leakage? Trip?

You can first check whether the body of the electric heating tube has abnormalities such as burning black and cracking. If the shell is cracked, it is the leakage caused by the electric heating tube. If there is no abnormality on the surface, it can be tested again with an insulating shaker

Whether the electric heating tube is leaking. If the electric heating tube problem is ruled out or the electric heating tube is replaced

Tripping, it is recommended to check the aging of the circuit breaker one by one, the contact of the AC contactor is damp, and so on.



Factory Show

Mica Nozzle Band Heater stock photos
Company Style
High quality material - magnesium oxide powder
FAQ
Are you a factory or trading company?
Are you a factory or trading company?...more
Get the latest price? We'll respond as soon as possible(within 12 hours)
This field is required
This field is required
Required and valid email address
This field is required
This field is required
For a better browsing experience, we recommend that you use Chrome, Firefox, Safari and Edge browsers.