Hangzhou Paishun Rubber & Plastic Co., Ltd |
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Nylon Tube Four Layers R12 , R134a , Air Conditioning Hose For Car
Use
1. 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.
2. Sizes and performace parameters of air conditioning hose:
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 |
3. Technical structure of air conditioning hose:
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.
4. Production technology of air conditioning hose:
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.
5. Application of air conditioning hose:
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.
6. Pictures of air conditioning hose: