SAE 100 R7/EN856 R7 DN16

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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:Hose wire is it? What's the function?
It is used to make the skeleton material of high pressure hose, and increase the pressure resistance of the high-pressure hose.
Q:Can the copper tube of GREE air conditioner be changed into rubber tube?
Unless they are specially made for air, rubber tubes for general industrial and domestic use shall not be used for connecting air conditioners. Because the refrigerant to plastic and other polymer compounds will play "swelling" role, make it soft, expansion and foaming, will make plastic and other polymer materials more easily aging and decomposition. In addition, the refrigerant pipe is not suitable for the environment of high temperature, low temperature and high pressure, and plastic pipes can not be used.
Q:What is a hose valve?
[hose valve features]1, abrasion resistance, corrosion resistance, frost resistance, sealing performance, and only the replacement of rubber sets, that is, as good as new, the valve body can be used permanently, life expectancy is 4-6 times the ordinary valve.2, sealing special good: both ends of the hose with rubber flange, when the valve and pipe connection, no need to seal the gasket, thereby eliminating the running, risk, drip, leakage and other undesirable phenomena.3, good cold resistant performance: the fluid flow in the flexible hose, thereby eliminating fluid crystallization caused by evil shell cracking.4, scientific and reasonable structure, simple operation and flexible, convenient maintenance, maintenance, as long as the replacement hose, valve and other institutions can be used for a long time, thereby improving the service life of the valve, greatly saves the production cost of the user, in line with value engineering.5, the valve structure is simple, is the only non leakage valve, capable of a variety of medium concentrations of acid and any concentration of alkali salt solution, can transport pulp, dry and wet powder, as well as crystal object medium.6, different media can choose different rubber formula hose, to meet the needs of different users.
Q:The pipe of the gas water heater is buried in the wall. It is made of nylon tube and rubber tube. Is it possible to use rubber tube?
Rubber tubing only. This is because rubber and other organic substances will age, and then easily burst. It's the same in the wall, but it's only a little longer. The consequences of the rupture are unimaginable: gas leaks, gas poisoning, fire explosions, and so on. However, there is a layer of nylon tube protection, rubber tube should be able to use the next renovation of the era without damage, and then added to the upper wall, the effect should be more ideal.
Q:What is negative pressure rubber shock proof joint? Is vacuum piping available?
Negative pressure resistant rubber shock joint is simple product requirements than the general negative pressure resistant rubber joint rubber joint is much higher, simply can't stand the pressure, for example the pipe diameter is 0.1kg pressure, rubber tube will suck flat, so with the outward pressure pipeline is completely different, negative pressure, diameter must be increase the pressure guide tube, negative pressure diversion tube also is what we usually say is a carbon steel pipe in the shock absorber rubber hose diameter, but joint diameter than the original diameter, the pressure guide tube, shock absorber rubber hose will not be sucked flat, so that the original vibration isolation and shock proof box the expansion effect is not affected, only the affected joint is slightly smaller diameter.
Q:The gas water heater uses metal pipes and rubber pipes
Rubber tube will be aging for long time, it is better to use gas special stainless steel bellows
Q:How to prevent leakage of rubber joint check valve?
As the valve body is particularly flexible, to ensure maximum resistance to back pressure at the same time to minimize water head, and some only one centimeter water head can be opened, so that the valve emissions and back resistance to achieve a perfect unity.
Q:Why can the air conditioning connection be made of copper tube? How about rubber tube and aluminium pipe? Please heroes pointing for the dishes.
Rubber tube pressure tube not Yi Nai, welding pressure is relatively low.
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:Toilet hose and water tank joints leaking, how to repair?
There is a rib joint. It may be that the rubber sealing ring in the joint is not installed or damaged. Turn off the water source, disassemble, check and replace;

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