SAE 100 R7/EN856 R7 DN8

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DNHose I.DHose O.DWorking PressureBurst PressureMinimum Bend RadiusWeightLength
inchmmmmMPaPsiMPaPsimmkg/mmetres
31/83.38.517.2250068.910000130.03720~100
53/164.810.820.7300082.712000200.06820~100
61/46.413.020.7300082.712000330.08520~100
85/167.915.117.2250068.910000460.10320~100
103/89.517.015.5225062.19000510.14120~100
131/212.720.713.8200055.28000760.21020~100
193/419.027.18.6125034.550001270.28720~100
25125.4346.9100027.640002030.54220~100

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Q:What does the letter of the high-pressure tubing connector mean?
High pressure oil classification: high pressure wire braided hose, high pressure hose winding wire, large diameter, high pressure hose steel wire (fiber) reinforced nylon elastomer resin pipe, steel wire reinforced soft, high-pressure hose, hose, high temperature resistant polyurethane hose.Structure: high pressure oil pipe consists of steel wire winding skeleton layer and internal and external oil resistant rubber, corrosion resistant synthetic rubber and weather resistant special rubber.
Q:How can you pump out the water from a fishpond with a rubber tube?
Hold both ends of the rubber hose with both hands. One hand blocked nozzle, not to leak. Inhale with the mouth, suck the air out of the rubber tube, and then quickly put the blocked end into the tank. The lower end of the mouth is lowered and the water will flow out automatically. If there is no outflow, then put the rubber tube directly in the fish tank and inhale at the other end with the mouth. The water will be guided out, but the action should be quick, otherwise the water will remain in your mouth. In fact, this method is also from the oil tank in the car oil discharge method.
Q:Is the rubber pipe joint installed in the middle of the pipe and pump for shock absorption?
According to the pumping station environment, the noise source is not close to the pump house for sound insulation treatment, the noise of the pumping room will be taken sound absorption / sound insulation treatment, doors and windows should do sound insulation treatment, and so on.
Q:The principle of the common bicycle valve
The diode is powered by single items. The bicycle valve is single - ventilated. Basically, a rubber is wrapped over the valve coreThe rubber is wrapped in the long, thin hole under it
Q:Excuse me: how can a pen with a rubber tube attract more ink?
If this can not be solved, you can suck a part of the pen out, inverted (NIB upward), gently knock, so that ink into the hose, and then continue to suck ink, repeatedly, so that the pen "drink" full".
Q:How long is the service life of a rubber tube?
It depends on the environment, and what brand of hose, the general import of plastic pipe used relatively long, our family's sewage pipe with IVG used for several years
Q:Could you tell me the maximum pressure that the hose can bear?
Production process with pressure hose hose to withstand the enhancement layer material has a great relationship with the enhancement layer, the enhancement layer of the same level, generally the larger diameter bearing capacity is small, the enhancement layer is cloth or steel wire line and the enhancement layer is also different. Select the hose you want according to your requirements. The hose pressure is 4 times the normal pressure
Q:Why are the lengths of the household combustion equipment linked to the gas pipe hose no more than 2 meters?
Avoid prolonged accumulation of gas combustion
Q:What is a rubber core pulling method?
For short component hole, a hose can be used to bend through two parallel holes; if it is used for retaining hole of long component, the two hoses of anchor can be connected by iron sheet sleeve. The length of the bushing should be 400 - 500mm, and the inside diameter should be 2 - 3mm larger than the outer diameter of the hose. The fixed position of steel derrick hose available, spaced not more than 0.5m, and fasten with steel skeleton.
Q:How to determine the tensile strength of GB rubber joint?
The cutting of sample can be done by punching machine. When punching sample, the following points should be paid attention to.The cutting force is uniform, not too large, and with mild soap and water and clean tap water wet specimens (or tools), if a sample cut down, it should be abandoned, not to repeat the old mark for cutting.The direction of specimen cutting should be consistent with the direction of tension and the direction of rolling.

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