What are the available product certifcations?

We have certifications such as: ATEX, CE, CNEX. IS014001, OHSAS18001,SIRA, DCI. etc

What are the available heater fange type, sizes and materials

WNH industrial electric heater, flange size between 6"(150mm)~50"(1400mm)
Flange standard: ANSI B16.5, ANSI B16.47, DIN, JIS (Also accept customer requirements)
Flange material: Carbon steel, Stainless steel, Nickel-chromium alloy, or other required material

What are the available heater pressure ratings?

WNH process flange heaters are available in pressure ratings from 150 psig (10 atm)
to 3000 psig (200 atm).

What are the available element sheath materials

Available sheath materials include stainless steel, high nickel alloy and many others.

What is the maximum design temperature

Design temperatures up to 650 °C (1200 °F) are available based on customer specifcations.

What is the maximum power density of the heater?

The power density of the heater must be based on the fluid or gas being heated. Depending on the specific medium, the maximum usable value can reach 18.6 W/cm2 (120 W/in2).

What are the available Temperature Code ratings?

Available Temperature Code ratings are T1, T2, T3, T4, T5 or T6.

What are the available power ratings?

With the combination of modules, available power ratings per heater bundle can reach 6600KW, but this is not the limit of our products

What are the ambient operating temperature limitations

WNH heaters are certifed for use in ambient temperature ranges from -60 °C to +80 °C.

What terminal enclosures are available?

Two different types of terminal enclosures are available – a square/rectangular panel
style design suitable for IP54 protection or a round fabricated design suitable for IP65 protection. Enclosures are available in carbon steel or stainless steel construction.

How are the wiring connections made?

The selection is based on the customer's cable specifications, and the cables are connected to the terminals or copper bars through explosion-proof cable glands or steel pipes.

Are leakage currents required to be monitored and controlled

Yes, a certifed ground fault or residual current device is needed to ensure that leakage current values are maintained within acceptable ranges.

Can WNH provide anti-condensation heaters to prevent damage from moisture?

Yes, an anti-condensation heater can be provided within the heater terminal enclosure, based on customer specifcations.

Can WNH provide control panels suitable for use with the process heaters?

Yes, WNH can provide electrical control panels suitable for use in ordinary atmosphere or explosive atmosphere locations.

Can WNH provide pressure vessels suitable for use with the process heaters?

Yes,WNH can provide pressure vessels suitable for use with the electric heaters according to customer requirements.

Are you factry?

Yes, we are factory, all customers are more than welcome to visit our factory .

How can I pay with?

Our acceptable payment terms of electric heater are:
1). Normally we accpet T/T;
2). For the small amount, for examples less than USD5000, you can pay by Alibaba tradesure order or T/T.

Can I order one for each for samples?

Yes, of course

What Type of package do you use?

Safe wooden case or as required.

Which Items do you inspect in each processing stage?

External dimension; Insulation puncture test; Insulation resistance test; hydrotest...

How long is the warranty time for your product?

Our officially promised warranty time is 1 year after delivering at best.

How to Choose an Industrial Heater?

It is important to consider the specifics of your application prior to selecting the heater to use. Of primary concern is the type of medium being heated and the amount of heating power required. Some industrial heaters have been specially designed to function in oils, viscous, or corrosive solutions.

However, not all heaters can be used with any material. It is important to confirm the desired heater will not be damaged by the process. In addition, it is necessary to select an electric heater that is appropriately sized. Be sure to determine and verify the voltage and wattage for the heater.

One important metric to consider is Watt Density. Watt density refers to the heat flow rate per square inch of surface heating. This metric shows how densely the heat is being transferred.

Prior to this, Jiangsu Weineng Electric Co., Ltd.(WNH) has always had ATEX explosion-proof certificate. In May of this year, WNH company obtained IEX EX certificate. If you need high-quality industrial electric heaters, please don’t hesitate to contact us:

What other controls are needed for safe operation of the process heater?

The heater needs a safety device to ensure the safe operation of the heater.
Each heater is equipped with an internal temperature sensor, and the output signal must be connected to the control system to realize the over-temperature alarm of the electric heater to ensure the safe operation of the electric heater. For liquid media, the end user must ensure that the heater can only work when it is completely immersed in the fluid. For heating in the tank, the liquid level needs to be controlled to ensure compliance. The outlet temperature measuring device is installed on the user’s pipeline to monitor the exit temperature of the medium.

What type of temperature sensors are provided with the heater?

Each heater is provided with temperature sensors at the following locations:
1) on the heater element sheath to measure maximum sheath operating temperatures,
2) on the heater fange face to measure maximum exposed surface temperatures, and
3) An Exit temperature measurement is placed on the outlet pipe to measure the temperature of the medium at the outlet. The temperature sensor is a thermocouple or PT100 thermal resistance, according to customer requirements.