SAE 100 R7/EN856 R7 DN25

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Q: Acid burette and burette why different structure: A frosted glass knob with a Teflon plug instead of acid burette, the high price of some, but not afraid of corrosion lye, a general acid burette.

Q: The difference between the rubber pipe and PE pipe: The characteristics of the rubber tube has physiological inertia, UV resistance, ozone resistance, resistance to high temperature (-80 to 300), high transparency, strong resilience, resistant to compression permanent deformation, oil resistance, impact resistance, acid and alkali resistance, wear resistance, flame resistance, voltage, electric.

Q: The function of rubber joint?: After installation, it can reduce the noise caused by vibration of pipes, pumps and so on, and has strong vibration absorption ability

Q: What is the essential difference between natural rubber and three yuan ethylene propylene rubber?: The strength of natural rubber in the elastic material, natural rubber, rubber, rubber, vulcanized rubber with higher intensity. The tensile strength of uncured rubber is called Green strength, and the Green strength of natural rubber is up to 1.4~2.5Mpa. The proper Green strength is necessary for rubber processing and forming. The tear strength of natural rubber is also higher, up to 98kN/m, and its abrasion resistance is better. The reason for the high mechanical strength of natural rubber is that it is self reinforcing rubber. When stretched, the macromolecule chains tend to form crystals in the direction of stress.

Q: The maximum number of joints for a rubber hose is no more than: Hot and cold bath "benefits: first, take a bath with hot water, sweat pores, body dirt with sweat excreted; second, hot water to make the blood flow smoothly, promote the The new supersedes the old. refreshing,; third, for a hot bath and systemic vascular dilatation, and because of cold water bath and contraction. Such a contraction of blood vessels, enhanced flexibility, it is difficult to harden, blood pressure is not high, the old can prevent stroke.

Q: Can high speed air flow through a rubber tube and produce static electricity?: As a result of friction, high velocity flow of gas through the rubber pipes will produce static electricity.

Q: M40 and M50, and then the hose is 2 "what does the box connection mean?": One with teeth and one with hose, the hose is 2 inches, 2 inches of hose, and the inner hole is 50MM (1 inches =25.4MM).

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: 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: How to identify the quality of rubber pipes for sewage treatment?: A tubular rubber product used to transport gases, liquids, slurries, or granular material. It is composed of inner and outer rubber layer and skeleton layer. The material of skeleton layer can be made of cotton fiber, various synthetic fiber, carbon fiber or asbestos, steel wire and so on.

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