1. Element is allowed to work under the following conditions:
A. Air relative humidity is not more than 95%,non-explosive and corrosive gas.
B. Working voltage is not greater than 1.1 times of rated value.Shell should be grounding effectively.
C. Insulated resistance is enqual and more than 1MΩ. Dielectric strength: 1.5KV/1min.

2. Heater should be fixed at suitable location. Effective heating area must be dunked or put in metal solid.It's strictly prohibited to burn emptyly.
If find the surface of tube body has scale deposit or carbon form, you should clean it firstly and then use,so as not to affect heat dissipation to shorten its life span.

3. Heating fusible metal or solid nitrate,alkali,asphalt,paraffin wax,etc.,you should reduce use voltage,after medium melting,you can rise it up to rated voltage.

4. Heating air element should be with cross and homogeneous permutation, in order to make the element has good cooling conditions and make air flow be fully heating.

5. When heating nitrate,you should conside safety measures to prevent explosion accident.

6. Connection wire part should be put outside of thermal insulation layer to avoid contacting with corrosive and explosive medium and water. Connection lead wire should be able to bear temperature of connection wire part and heating load for long term. Connection wire screw fastening should avoid overexert.

7.Element should be stored in dry place.If insulated resistance is less than 1MΩ because of laying aside for long-term, you can put it in an oven at about 200 degree centigrade for drying,or else reduce the voltage for electricity heating,until recover insulation resistance.

8. Magnesia powder at heater outlet end should be protected from pollutant and moisture infiltration in using places to prevent electric leakage accidents.

9. If it's used to heat mold,it should avoid heating part in the mold external heating. If in the air heating,heat dissipation will be difficult which makes temperature of heater too high, and it will cause short circuit.

Picked up customers at Hongqiao airport which is near to our company

Take customer to Shanghai Eastern pearl tower which is representative building of Shangahi

Meeting customers in our factory

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free based on the cost or sample,but do not pay the cost of freight.

Q: What is your terms of payment ?

A: T/T in advance,western union or paypal.
If you have another question, pls feel free to contact us as below:

Tel: +86-21-22810889    Fax:+86-21-22816889

Q: What type of package do you use?
A: Standard safe carton boxes, or pallets based on goods.

Q: What's transport way?
A: We send goods by courier, by air or by sea,based on your needs.