DIN EN 853 4SP DN20

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DNHose I.DWire O.DHose O.DWorking PressureBurst PressureMinimum Bend RadiusWeightLength
321 1/431.840.543.56.392025.036004191.2320/40
381 1/238.146.850.65.073020.028605081.5120/40

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Q:There are several ways to connect the built-in rubber stop
The spot heat vulcanization method is a heat vulcanizing mould matched with a water stopping strip and a raw film vulcanizing heat junction. The construction is difficult, but the joint effect is ideal, which is suitable for the project with strict quality requirements.
Q:How to replace natural gas hose? Steps?
Replace the natural gas hose first pressure relief, and resolutely put an end to the operation with pressure;According to the connection way of the hose, if it is O ring sealed, just tighten it directly;If it is cone thread, it can be wrapped with raw material tape or sealant.
Q:Is rubber tube harmful to drinking water?
There are drinking water standard rubber tube, ordinary hose can not be directly applied to drinking water, there is low toxicity!
Q:What does the letter of the high-pressure tubing connector mean?
Purpose: high pressure tubing tubing steel wire spiral reinforced layer and wear resistant synthetic rubber composition used for conveying high pressure, engineering machinery hydraulic oil, gas, petroleum, submarine irrigation, steel mills, chemical plants and other media.
Q:What should I pay attention to when rubber tube is in storage?
The phenomenon of natural vulcanization caused by long-term exposure to corrosive gas or prolonged exposure to sunlight is called aging of rubber. The main phenomena are increasing of self weight, volume expansion and strength reduction.
Q:Is it feasible to use rubber material, middle canvas layer and outer rubber material in PVC rubber tube?
Cloth rubber tube, 68.5MM mold out, take off the mold, after natural cooling, measuring the diameter of only 67.8MM, rubber and cloth shrinkage!
Q:Must the hose for the cooker be made of oil resistant rubber hoses?
Stove for rubber tube not only to the requirements of oil resistance, acid and alkali resistance, high temperature resistance, aging resistance and flame retardant have strict requirements, rubber gas pipe service life in 2 years or so, there will be over the period aging phenomenon.
Q:The copper joint is leaking, and the tap water hose and copper joint are leaking
1, the expansion of aluminum pipe is not expanded, and re - do the side.2, copper joints are non-standard products, replaced by standard parts.
Q:Are the bridges, bellows and rubber tubes drawn out or are they drawn only? And the bellows are tensioned with the steel strand?
It is relatively rare, usually corrugated pipe for zinc metal corrugated pipe, the construction unit may be in order to prevent pipe blockage, when pouring concrete, the corrugated pipe with rubber tube, after pouring completed final setting, you can pull out rubber tube. Bellows need not be drawn.
Q:The function of rubber joint?
The utility model has the advantages of small size, light weight, good elasticity, convenient installation and maintenance

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