Metal hoses are a high quality flexible pipe in modern industrial piping. It consists mainly of bellows, mesh sleeves and joints. Its inner tube is a thin-walled stainless steel corrugated tube with a spiral or ring shape, and the outer sleeve of the bellows is woven by stainless steel wire or steel strip according to certain parameters. The joints or flanges at the ends of the hose are matched to the fittings or flanges of the customer's piping.
Metal hoses can generally be divided into three lengths: the first is the compression length, which is the length when the hose is compressed to the limit position; the second is the installation length, which is halfway between the maximum displacements. The length of the hose; the third is the length of the stretch, the length at which the hose is stretched to its maximum limit. When installing the hose, the hose should be in the middle position, the so-called installation length. In this position, the hose can have two moving directions when subjected to axial load. Otherwise, if it can only move in one direction, it will affect the strength of the metal hose and reduce the service life. In the actual installation process, considering the use of the ruler to calculate the length of the hose and then install it may affect the production efficiency. Some foreign manufacturers install the ruler directly on the hose, and cut the ruler after installation.
Metal hose: It needs a flexible pipe to prevent vibration. It can be used in steam, gas, air, heavy oil, petroleum, chemical, etc. For specific selection, refer to the hose material machine corrosion resistance parameter table. For the nominal diameter and pressure gauge of the corrugated metal hose, please refer to the correct use and installation method of the metal hose and the optimal length of the hose during settlement compensation.
Classification and connection of metal hoses:
First, universal corrugated metal hose
1, take over corrugated metal hose
Model: HXJR metal hose
Nominal diameter: DN6 ~ DN800
Working pressure: 0.6 ~ 12.5 (MPa)
Connection form: RX21
Second, the joint type corrugated metal hose
1, one end ball head coat nut
One end inner taper joint
Model: HXJR metal hose
Nominal diameter: DN4 ~ DN100
Working pressure: 1.0 to 35 (MPa)
Connection form: RX18/23
2, the ball ends of the ball nut
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN4 ~ DN100
Working pressure: 1.0 to 35 (MPa)
Connection form: RX18
3, the groove joint is connected to the metal hose
Model: HXJR metal hose
Nominal diameter: DN18 ~ DN100
Working pressure: 4.0 ~ 16 (MPa)
Connection form: RX24/25 or RX24
A end face, one end slot joint
B Both ends of the face joint (RX24)
4, 55 ° taper pipe threaded metal hose
Model: HXJR metal hose
Nominal diameter: DN8 ~ DN100
Working pressure: 1.0 to 2.5 (MPa)
Connection form: RX01 or RX01/09
A Both ends of the cone male thread (RX01)
B one end male, one end female taper pipe thread
5, the oil is connected to the metal hose
Model: HXJR metal hose
Nominal diameter: DN6 ~ DN80
Working pressure: 0.25 ~ 1.6 (MPa)
Connection form: RX02A or RX02
A oil joint at both ends (RX02A)
B End oil taper thread (RX02)
6, open type quick connector
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN15～DN150
Working pressure: 2.5 to 4.0 (MPa)
Connection form: RX66
7, claw type quick connector
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN15～DN150
Working pressure: 1.6 ~ 2.5 (MPa)
Connection form: RX67
Third, flanged corrugated metal hose
1, both ends of the flat welding flange
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN10 ~ DN800
Working pressure: 0.25 ~ 2.5 (MPa)
Connection form: RX06
2, one end flat welding flange
One end loose flanged metal hose
Model: HXJR metal hose
Nominal diameter: DN10 ~ DN800
Working pressure: 0.6 ~ 2.5 (MPa)
Connection form: RX06/15
3, both ends of the flanging loose flange
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN10 ~ DN800
Working pressure: 0.6 ~ 2.5 (MPa)
Connection form: RX05
4, concave and convex high pressure flange
Connecting metal hose
Model: HXJR metal hose
Nominal diameter: DN15～DN300
Working pressure: 4.0 ~ 6.4 (MPa)
Connection form: RX26/27 or RX26
A convex flange at one end, concave flange connection at one end (RX26/27)
B Convex flange connection at both ends (RX26)
Fourth, the special corrugation is all hose and corrugated compensator
1. Corrugated metal hose for storage tank
Product model: CJR metal hose
Nominal diameter: DN15～DN600
Working pressure: 0.25 ~ 2.5 (MPa)
Connection form: RX06/15
2. Pump corrugated compensator
Model: HXBB metal hose
Nominal diameter: DN25 ~ DN1000
Working pressure: 0.6 ~ 1.6 (MPa)
Connection form: RX06 or RX06/15
3, pump corrugated metal hose
Product model: BJR
Nominal diameter: DN25 ~ DN1000
Working pressure: 0.25 ~ 4.0 (MPa)
Connection form: RX06 or RX06/15
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