Earthwork Products

ID 8mm to 22mm EPDM Air Conditioning Hose For Conveying R134a, R12 Etc
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Production technology?of air conditioning hose:
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When making A/C hose,?mandrel process?is used here. That means there will be a mandel when ? ? ? ? ? ? ? making inner tube in order to make the inner diameter sizes more precise. For the cover, it is mill finish ? ? ? and shining, a layer of PVC is added when making the cover, then??we will do some vulcanization for the ? ? cover and?remove the PVC layer finally. And there are some very small holes on the cover?for gas ? ? ? ? ? ? evacuation not to let the outer tube burst. All the production skill will guarantee our A/C hose to have ? ? ? ? good performance.
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Application?of air conditioning hose:
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A/C hose is mainly used to convey the medium of refrigerant such as R134a, R12, R22 etc. Applied ? ? ? ? widely to auto refrigeration in automoblie air conditioning system like?bus transit system.?
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Technical?structure?of air conditioning hose:
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For regular A/C hose has?four layers, we call this A/C hose as type E air conditioner hose. Inside tube ? ? ? is nylon (PA), middle layer is EPDM or IIR (Isobutylene-Isoprene Rubber), the reinforced layer is PET or ? ? single high strengthen weaving fiber braided. Outer tube is EPDM with black and smooth cover.?Here is another type of A/C hose with?five layers.?The inside tube is EPDM not PA. We call type C air ? ? ? ? conditioner hose.
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?2. Sizes and performace parameters of air conditioning hose:?
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Inner Diameter | Outer Diameter | Working Pressure | Burst Pressure | Length |
inch | mm | mm | bar | psi | bar | psi | m |
?5/16 | 8.2±0.4 | 15.2±0.5 | 35 | 500 | 280 | 4060 | 100 |
13/32 | 10.2±0.4 | 17.2±0.5 | 35 | 500 | 220 | 3139 | 100 |
?7/16 | 11.2±0.4 | 18.4±0.5 | 35 | 500 | 230 | 3335 | 100 |
?1/2 | 13.2±0.4 | 20.8±0.5 | 35 | 500 | 200 | 2900 | 100 |
?5/8 | 15.5±0.4 | 23.8±0.5 | 20 | 290 | 180 | 2610 | 50 |
?3/4 | 19.0±0.4 | 28.5±0.5 | 15 | 210 | 160 | 2320 | 50 |
?7/8 | 22.0±0.4 | 33.0±0.5 | 15 | 210 | 120 | 1740 | 50 |
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We can also producing air conditioning hose assembly as following pictures:
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Air conditioning hose?is one of the rubber?hoses that we have been promoting.?Quality is priority, for air conditioning hose, quality is very stable. It is one of our high-end hose.?the synthetic rubber content for this hose?is up to 40%, which is high in the range of rubber hoses.
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