SAE 100 R7/EN856 R7 DN8

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Q: How far is the gas cooker from the gas riser in the kitchen?: Rubber pipes shall not be worn through the chamber and should be checked regularly. It is found that aging and damage should be replaced in a timely manner (rubber tubes shall be used for a period of not more than 18 months).

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: Three yuan ethylene propylene rubber hose, hydraulic oil and oil?: Finally, NBR (Ding Jing rubber), ACM (acrylate), FKM (FKM) can be non polar medium.

Q: The rubber is sheathed on a metal cylinder. How should they 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: Water heater hose 4 points and 6 points difference: 4, in charge of 1/2 inches of pipe, 6 in charge of 3/4 inches of pipe, different specifications of some differences.The so-called 5 turn 4, should be different diameter, that is, pipe and pipe joints, parts of different specifications.A bellows is a pipe, not flat, corrugated.

Q: Is it feasible to use rubber material, middle canvas layer and outer rubber material in PVC rubber tube?: Improvement measures: 1, adjust the process, plastic material in place; mixing rubber plastic stability; vulcanized rubbing with low temperature long time vulcanization; 2, test cloth in curing temperature shrinkage coefficient is too big, consider changing cloth;

Q: How to remove the smell of gasoline in the car?: The local gasoline smell is introduced into the car from outside environment.Answer: turn on the air conditioner, use the internal circulation mode, and open the sunroof exhaust.

Q: Stainless steel metal hose and flexible rubber joint which is easy to use?: Stainless steel metal hoses and flexible rubber couplings are used for pump inlet and outlet to absorb vibration and noise during the operation of the pipe pump. The two products are common in the case of ordinary media.

Q: How often do the oil - resistant rubber pipes undergo atmospheric pressure testing?: Hydraulic test verification pressure test: Test hose and assembly under verification pressure, continue 30s-60s, whether to produce leakage, deformation and damage. Compression deformation test: keep 1 minutes under the specified pressure (work pressure, verification pressure or other pressure below the proof pressure), measure the length and diameter of the hose, twist angle and bend. Bursting pressure test: Determination of the pressure at which the hose burst during the specified step-up rate. Leak test: save 5min at 70% of the minimum blast pressure, and check again and again for leaks or damage. Due to the fact that water is often used in tests, the pressure and leakage pressure at normal temperatures may be slightly lower at normal temperatures.

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.

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