Ten minutes to let you know, which is better to connect the stainless steel corrugated hose or stainless steel braided hose for the water heater?

Is it better to use stainless steel corrugated braided hose or hose for water heater connecting pipe? Indeed, there seems to be little difference between the two on the surface. It seems that both can be used? What about the reality? Let’s learn about the use and performance characteristics of the two. The answer is self-evident.

There are actually two types of stainless steel bellows, one is ring shaped bellows and the other is spiral shaped bellows.

wps_doc_0

Helical corrugated hose

The spiral corrugated hose is a tubular shell with spirally arranged ripples. There is a helix angle between two adjacent ripples, and all ripples can be connected by a helix.

wps_doc_1

Toroidal corrugated hose

The annular corrugated hose is a tubular shell with closed circular corrugations. The waves are connected in series by circular corrugations. The annular corrugated pipe is formed by processing seamless pipe or welded pipe. Restricted by the processing method, compared with the spiral corrugated pipe, its single pipe length is usually shorter. The advantages of the annular corrugated pipe are good elasticity and small stiffness.

In fact, the annular and spiral corrugated tubes have similar functions. They are both made of stainless steel inside and outside, which can be bent. They can be connected in short or long distance with explosion-proof and high temperature resistant high-quality pipe fittings. Both ends are equipped with sealing ring gaskets with stainless steel joints. They provide us with the transportation needs of hot and cold water, high and low temperature gases in a seamless way.

wps_doc_2

Because there is only one layer and no inner hose, the stainless steel corrugated hose is not suitable for use in the scene with too large torque angle, and because there is no inner hose, the hose diameter is larger, and it is not good for use in places with pressure requirements, especially because of the relationship between floor height, the disadvantage is particularly obvious for families with insufficient tap water pressure.

The advantage of stainless steel corrugated hose is that it can be used for the transmission of high-temperature liquid and gas, such as hot water inlet hose and gas transmission hose. For areas with poor water quality, corrugated hose can be preferred for the connection hose of water heater, because it is made of stainless steel as a whole, with a longer service life, except for the silicone pad at the connection end.

wps_doc_3

The main material of the corrugated hose is made of 304 or 316L stainless steel, and its two ends are made of stainless steel joints or carbon steel joints to ensure sealing and good corrosion resistance. The actual working pressure, service environment, service conditions and other factors of the corrugated hose are considered. All parameters have been carefully calculated and repeatedly tested to ensure the pressure safety in the work.

wps_doc_4

Where is the stainless steel braided hose?

The so-called hose is actually made of stainless steel wire braided on the outer layer and lined with EPDM, PEX or silicon hose, which is a double shape, so the pipe diameter is smaller. The outer layer is made of 304 stainless steel wire. The flexibility of the whole hose is good, and the anti riot effect is slightly worse than that of the corrugated pipe. Secondly, the diameter is smaller, and the water flow is weaker, but it can improve the water pressure.

wps_doc_5

The use scenario of stainless steel braided hose is usually the water supply connection of the kitchen basin, toilet and bathroom cabinet. The angle of torque is large. Because the outer layer is stainless steel wire braided inner EPDM, PEX or silicone hose, the volume is lighter than stainless steel corrugated pipe, and the construction is more convenient, which is also a type preferred by most teachers.

I believe you have the answer. Of course, the connection of the water heater is stainless steel ring, or spiral corrugated pipe.

wps_doc_6

The stainless steel corrugated pipe, whether spiral or annular, is uneven. There is only one outer pipe, no inner hose, and the hose body is hard. It is better to install it vertically. Multiple bends at the same place should be avoided as far as possible to avoid affecting the reduction of service life.

wps_doc_7

No matter corrugated pipe or braided hose, the problem of the pipe itself is not serious when it is used. In fact, the most likely problem is at the connection end, which is similar to the use characteristics of ppr pipe. It is the joint damage that causes the flood of wealth in the home.

wps_doc_8

That is to say, the connecting end has too much torque, and the material of the nut at the connecting end is damaged. At the beginning of use, there is no problem. After a period of time (most importantly, there is no one at home or at night), the back side of the nut bursts. Of course, the result is that the water overflows the mountain and the disaster is downstairs.

This is why plastic wrenches are equipped at both ends of the stainless steel braided hose nuts. It is very dangerous for a master who does not know how to use a metal wrench to tighten the nuts. The plastic wrenches provided by the manufacturer are all fine. The owner can do this himself. However, the manufacturer of stainless steel bellows is not equipped with a plastic wrench, which can only be connected and installed by a professional master.


Post time: Oct-14-2022