SAE 100 R7/EN856 R7 DN25

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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:The rubber is sheathed on the metal cylinder. How can it be connected?
If you describe it, it is recommended that a soft binder such as 704 silicone gel will be used to prevent shock absorption and separation. Metal surface to rust treatment, clean can be coated adhesive, rubber cover surface is best polished, degreasing treatment effect is good!
Q:How long is the service life of the gas hose?
The protection work is very important, regular replacement of gas hose and make use of the gas hose gas pipeline safety in general, the gas hose has a life span of two years, usually pay more attention to inspection / check whether the aging hose, wear, corrosion or bad connection, avoid leakage.
Q:What is the function of the rubber pipe joint and the installation pipe?
The inner seamless seamless rubber joint prevents the corrosive medium from eroding the inner wall of the rubber joint and improves the service life in the high temperature resistant, acid resistant and oil resistant pipes.
Q:What is a hose valve?
The rubber tube is made of imported rubber and is made by special chemical formula. The utility model has the advantages of wear resistance, corrosion resistance, frost resistance, full sealing, no leakage, etc.;It is superior to gate valve, globe valve, regulating valve and stainless steel valve;It is convenient to overhaul, simply disassemble the valve body and replace the rubber tube. The valve body and the headstock can be used permanently. The cost is extremely low, and the service life can be raised by more than 3-5 times.Medium in the hose running, no flow resistance, do not touch the opening and closing mechanism and valve body, so as not to block the running parts, the operation is particularly flexible, greatly easing labor intensity.
Q:What's the difference between hose and hose for compressed air?
When the joint is made into a quick plug, hard pipe is rare; for example, galvanized steel pipe, joint practice is similar to hydraulic tubing. The pipes in the compressed air are welded with steel tubes, but I don't think that's what you call the hard tube
Q:What are the production processes and characteristics of high pressure rubber hose?
According to the knitting process, the high-pressure hose is divided into high-pressure steel wire braided hose and high-pressure steel wire winding hose.
Q:Do you need a hose connection to connect the ventilation pipe to the exhaust fan? Under what circumstances? Under what circumstances?
Must be added, never heard without the place, the wind turbine operation produces vibration, and galvanized sheet steel pipe is fixed at a certain place, if not, fan vibration, wind pipe vibration, the wind tube life are not long.
Q:In long-term high temperature environment, silica gel tube and three yuan ethylene propylene rubber hose which is good durability?
In long-term high temperature environment, silica gel tube and three yuan ethylene propylene rubber hose which is good durability?
Q:What is the rubber sleeve flange connection sleeve?
Advantages of gate valves(1), the fluid resistance is small, the sealing surface by the erosion of small and medium Chong brush.(2) it is more labor-saving to open and close.(3) the flow direction of medium is unrestricted, no disturb, no pressure reduction.(4) the utility model has the advantages of simple shape, short structural length, good manufacturing technique and wide application range
Q:How much is a gas hose a metre? At least 1 meters, 5 safe?
1, liquefied petroleum gas will soften the ordinary rubber tube, please use special rubber tube.2, often check and clean hose, found aging, cracking, burn, rat worm bite marks, should be replaced immediately. It is recommended that the hose be replaced in two years under normal conditions.3, gas hose length of not more than 2 meters, after passing the place is not allowed to have electrical appliances.4, hose do not close to the stove surface, so as not to be flame barbecue.5, the hose does not cross the wall, doors and windows.6, do not press or fold the hose, so as not to plug, affecting the continuous gas supply.At the interface, and appliance, 7 hose valve, please use the pipe truss, to prevent the shedding of leakage.

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