SAE 100 R7/EN856 R7 DN38

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DN	Hose I.D		Hose O.D	Working Pressure		Burst Pressure		Minimum Bend Radius	Weight	Length
DN	inch	mm	mm	MPa	Psi	MPa	Psi	mm	kg/m	metres
3	1/8	3.3	8.5	17.2	2500	68.9	10000	13	0.037	20~100
5	3/16	4.8	10.8	20.7	3000	82.7	12000	20	0.068	20~100
6	1/4	6.4	13.0	20.7	3000	82.7	12000	33	0.085	20~100
8	5/16	7.9	15.1	17.2	2500	68.9	10000	46	0.103	20~100
10	3/8	9.5	17.0	15.5	2250	62.1	9000	51	0.141	20~100
13	1/2	12.7	20.7	13.8	2000	55.2	8000	76	0.210	20~100
19	3/4	19.0	27.1	8.6	1250	34.5	5000	127	0.287	20~100
25	1	25.4	34	6.9	1000	27.6	4000	203	0.542	20~100

Q: The basement of submersible sewage pump outlet pipe installation need and flexible rubber joint is not installed? Can not?: Gu called it a shock throat. It not only plays a role in noise reduction, but also protects the pump from the adverse effects of vibration. Rubber joints belong to GB products, the price is not expensive. Recommended installation.

Q: What is the maximum pressure that a hose can bear?: Production process with pressure hose hose to withstand the enhancement layer material has a great relationship with the enhancement layer, the enhancement layer of the same level, generally the larger diameter bearing capacity is small, the enhancement layer is cloth or steel wire line and the enhancement layer is also different. Select the hose you want according to your requirements. The hose pressure is 4 times the normal pressure

Q: Can the rubber hose for the LPG cooker and gas cooker be general?: However, attention should be paid to the isolation of fire sources during storage and transportation, avoiding the exposure of sharp instruments and more corrosive chemicals, and avoiding prolonged storage in daylight.

Q: What is the principle of communicating devices? What if the rubber tube is used as a connecting device to change the water for the fish?: The principle of communicating devices can be explained by liquid pressure. If the same liquid is contained in a U glass tube, a small liquid AB is conceived at the center of the bottom of the communicating device. If the liquid is stationary, it does not flow. The pressure of the liquid in the left tube toward the right side of the liquid AB must be equal to the pressure of the liquid in the right tube toward the left of the liquid AB. Because in the communicating vessel is filled with a liquid, the same two liquid column density, according to the formula of P= P GH liquid pressure that only when both sides is equal to the height of liquid column, the liquid column is equal to the pressure on both sides of the liquid film AB. Therefore, in the case of no flow of liquid, the liquid level in each vessel of the communicating device shall be kept flat. (ideal model method) the connecting device is characterized in that the liquid level in each container is flat only when the same liquid is contained in the container. If the container is tilted, the liquid in each container is about to begin to flow. One end of the liquid column flows to the lower end of the liquid column and stops flowing until the liquid level in each container is normal. As with rubber tube two glass tubes connected together in container with a liquid, which will be a fixed tube, the other tube up and down or tilt, can see the two tube level in stationary phase remained flat. The connecting device is provided with the same liquid, but the pressure on the liquid surface is unequal, and the pressure difference of the liquid surface is equal to the pressure difference produced by the liquid level difference of the two container of the communicating device.

Q: How do the rubber tubes fit into the galvanized pipe?: The inner diameter and outer diameter of the galvanized pipe must be determined.

Q: Will the outside of the brake hose of the car burst apart?: Now there is no leakage of brake oil, but also afraid of the oil leak in the running, after all, related to safety, I suggest not to save this money (brake hose is not expensive)

Q: Is flexible rubber joint and telescopic device a kind of thing?: The main features of metal pipe telescopic device are telescopic, large compensation and high temperatureUnder great pressure.And flexible rubber joint is a product!

Q: Which is safer for stainless steel bellows and rubber tubes for gas pipelines?: Stainless steel bellows, installation is simple and quick. Because the elasticity of the stainless steel bellows is good, only two special tools can be bent in hand during the operation, and no joints can be arranged in the wall or the decorative layer when buried, which reduces the risk of leakage.

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 do the automobile rubber hoses combine with the quick couplings?: The blue fast joint with fluorine is corresponding to the pressure, and the red fast joint with fluorine is corresponding to the high voltage

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