Hangzhou Paishun Rubber & Plastic Co., Ltd |
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ID 8mm to 22mm EPDM Air Conditioning Hose For Conveying R134a, R12
Etc
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.
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.
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.
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 |
We can also producing air conditioning hose assembly as following
pictures:
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.