SAE 100 R7/EN856 R7 DN12

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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 kind of material does hose screw protection cover have? What are their advantages and disadvantages?
Hose cover is usually made of nylon or polyethylene
Q:Flexible rubber joints. What do they mean by flexing?
Stainless steel bellows are not a kind of rubber joint.Flexure generally means that it can be bent repeatedly.The rubber joint mainly plays the axial and angular compensation displacement, and withstands the mechanical vibration, protects the pipeline not to burst.Stainless steel bellows can also be flexible, but the performance of vibration proof is better than that of rubber joints. If the requirements of the engineering drawings are rubber joints, it is better to be careful. Don't change it indiscriminately. Otherwise, the service life will be affected
Q:Production process and raw material of rubber
Process selection: the tensile strength is the limit ability to characterize products can resist tensile failure. The main factors affecting the tensile strength of rubber are: the main valence bond, intermolecular force and polymer chain flexibility of macromolecular chains.
Q:Rubber soft joint, what brand of good, the best price is more reasonable. Don't say anything expensive.
The rubber joints produced throughout the country have the longest history in Shanghai, and have the characteristics of the type and sales volume of Gongyi city. They have been sold in the plumbing market all over the country
Q:How to distinguish the true and false corrosion resistant rubber soft joint?
Soft joint products into your acidic medium, a bubble will know!
Q:How to make sure the rubber hose will not be worn off?
This depends on experience, not carefully measured out of the value is also a great error
Q:What advantages does the Parker hose have in comparison with other hydraulic hoses?
Parker hose and other hydraulic hose advantages compared to:First: from the price point of view, the price of PAKER is the most expensive industry. High popularity.Second: if from the quality point of view, the quality of stability, high degree of recognition.Third: from the point of view of use, the difference is not obvious. PAKER things match well.Fourth: strong pressure resistance, rated 400bar hose, blasting pressure can reach close to 1000ba
Q:The basic buret is a rubber tube is inlaid with a glass bead to replace glass piston. Why this burets cannot be used to install Potassium Permanganate solution?
The rubber tube can be Potassium Permanganate oxidation
Q:Is there a tolerance standard for rubber tubes in length?
Generally speaking, the requirements of diameter and wall thickness are more stringent.The diameter is usually the inner diameter of the hose.Generally speaking, the length is not high, and the unwritten rule for foreigners is "+ 2~3mm".
Q:What are the categories of hose?
A rubber hose products structure: hose cloth; woven hose (fiber braided hose, steel wire braided hose); winding hose (fiber winding hose, hose winding wire); knitted hose, hose and other circular weaving hose (rubber hose, rubber and plastic composite hose and hose, drilling hose, etc.).

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