SAE 100 R7/EN856 R7 DN10

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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 are the types of metal hose couplings?
DGJ jointStructure and characteristics:DGJ self fixing metal hose joint, it can connect non threaded steel pipe or screw free equipment outlet and hose, and save the thread setting process;The metal joint is made of zinc alloy. The surface is zinc plated, sanded or chrome plated. The structure is compact and the strength is high. The steel pipe and the metal hose are connected reliably, and the appearance is beautiful;The metal joint is self - fixing and is used to connect the metal hose to the non - threaded steel pipe or the screw - free equipment outlet;Suitable metal hose: JS, JSH, JSB, JSHG;Adaptation: steel thin steel wire pipe, black, tin pipe (water, gas);When choosing the DGJ self fixing metal hose joint, please pay attention to the specification and size of the connecting pipe hose.
Q:How to remove hose odor?
When rubber is peculiar, it can be scrubbed by hydrogen peroxide. After drying, the odor will disappear. Or with waste tea sent to rubber products, tea has the role of adsorption odor.
Q:What are the pipes in the air conditioner?
General automotive air conditioning work principle: compressor exhaust, condenser, liquid storage dryer, expansion valve, evaporator, compressor suctionEach of the arrows (except the expansion valve to the evaporator) represents an air conditioning line. Some of them are rubber tubes and some are made of metal tubes.
Q:Hose connector JB1885-77 what is the standard?
The pipe joint oil sheet, wool, steel board, combined sealing washer or sealant leak, whatever the material, should first check the seal is damaged, and rough conditions such as deformation, aging, and then take corresponding measures.
Q:What are the materials used in rubber joints? What are their advantages?
Ordinary air, compressed air, water, sea water, hot water, weak acid, strong alkali, temperature between -20 ~ +115, such as the media with ordinary natural glue can
Q:The small hose attached to the grease gun is coarse or fine at the joint
For sealing, according to the maze principle, the smaller the pitch, the number of threads, that is, the more layers, the better the sealing effect, not easy to leak oil, significantly better than the rental thread.
Q:Do you need a hose connection to connect the ventilation pipe to the exhaust fan? Under what circumstances? Under what circumstances?
Ventilation ducts and exhaust fans are for people or things, and the noise of vibration is unbearable for people or things.
Q:What is the maximum pressure that a hose can bear?
Of course, there is a super high-pressure hydraulic hose, the working pressure of up to 80MP., using 6 layers of steel wire or more winding process.
Q:The copper joint is leaking, and the tap water hose and copper joint are leaking
1, the expansion of aluminum pipe is not expanded, and re - do the side.2, copper joints are non-standard products, replaced by standard parts.
Q:How often do the oil - resistant rubber pipes undergo atmospheric pressure testing?
Bending test: after bending the hose to a certain extent, measure the minimum outside diameter of the bending part and the ratio of the outside diameter before bending, the passing capacity of the steel ball and the bending force when the tube is pressurized.

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