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Help CenterDA 284S Pressure Compensation Bellows Type Expansion Stainless Steel Vent Plug With CE
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1. High degree of protection
2. Easy to install
3. Waterproof membrance
4. Pressure differentials in enclosures with a high degree of protection are a result of internal and external temperature changes. In the case of negative pressure or partical vacuum, dust and humidity can enter the enclosure through the door seal. When the air inside the enclosure cools down, condensation may occur because the humidity cannot escape the enclosure. The easy-to-install pressure compensation device DA 284 provides compensation of pressure at a protection degree of IP66. Even with a slight overpressure, a waterproof membrane inside the plug allows the humidity to escape whilst blocking water and dirt from entering the enclosure.
| Mounting | thread M40 x 1.5 with nut |
| Torque | 5Nm (max. 10Nm) |
| Depth in enclosure | approx. 16mm |
| Material | plastic, light grey |
| Sealing | sealing gasket NBR |
| Filter | waterproof membrane |
| Air permeability | 1200l/h at a pressure difference of min. 70mbar |
| Dimensions | Ø 60 x 37mm |
| Fitting position | variable |
| Operating / Storage temperature |
-35 to +70°C (-31 to +158°F) |
| Art. No. | Protection type | Packing unit | Weight (approx.) |
| 28400.0-00 | IP66 (EN 60529) / IPX9K (EN 40050-9) | 2 pieces | 90g (45g/piece) |
| 28400.0-01 | IP66 (EN 60529) / IPX9K (EN 40050-9) | 1 piece | 45g |
| 28400.0-01 | IP66 (EN 60529) / IPX9K (EN 40050-9) | 1 piece |
45g |
What is the delivery way?
(1)If ship by sea and Air,you can get Bill of Loading,CO,Commerical invoice,Packing list from us after ship.
(2)If ship by express company,you will get a Tracking No. from us after ship.
What the Certifications do we have obtained?
What is the payment?
What's the Refund & Replacement?
1. 90-day-warranty.
If there is any quality problem (defective / don't work) of the goods, it could be returned within the warranty days. (Please notify us as soon as possible)
2. Any items must be returned in their original condition to qualify for a refund or replacement. (Any used items cannot be refunded or replaced).
Company view
How do our thermostat switches on and off?
1. An outer dial enables you to set the temperature at which the thermostat switches on and off.
2. The dial is connected through a circuit to the temperature sensor (a bimetal strip, shown here colored red and blue), which switches an electrical circuit on and off by bending more or less.
3. The bimetal ("two metal") strip is made of two separate metal strips fastened together: a piece of brass (blue) bolted to a piece of iron (red).
4. Iron expands less than brass as it gets hotter, so the bimetal strip curves inward as the temperature rises.
5. The bimetal strip forms part of an electrical circuit (gray path). When the strip is cool, it's straight, so it acts as a bridge through which electricity can flow. The circuit is on and so is the heating. When the strip is hotter, it bends and breaks the circuit, so no electricity can flow. Now the circuit is off.
What is the MOQ of our our Thermostat?
MOQ: We support sample order.(1~5PCS)
More than 500PCS,can pring Logo on the products.
What is the guarantee Period for our our Thermostat?
1-2Year after sold
How to Visit and contact us?
Firstly, you are highly welcomed to visit our factory, we can provide you an invitation letter from Chinese Embassy for you if needed. Besides, we are more pleased to help you to book a flight or hotel to save your time.
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