The corrugation pitch of a metal hose determines the distance between the corrugations on the surface of the hose; with a closed corrugation pitch, the distance is smaller than for hoses with a standard corrugation pitch, which provides additional flexibility to the metal hose. Closed and standard corrugation pitch metal hoses can have a stainless steel braid to prevent excessive stretching when operating under high pressure.
The materials used for the production of metal hoses are stainless steel grades AISI 304, AISI 304L and AISI 316L.
Advantages of stainless steel hoses
- Strength and durability: Stainless steel has high strength and corrosion resistance, which makes metal hoses durable and reliable.
- Flexibility: Can be bent without damage, which makes it easy to lay them in complex configurations.
- High temperature resistance: Stainless steel metal hoses can operate at high temperatures, which makes them ideal for applications in high-temperature environments.
- Fire resistance: Stainless steel has high fire resistance, so stainless steel metal hoses are safe for use in fire-resistant environments.
- Chemical resistance: Stainless steel has high resistance to chemical reagents, which makes stainless steel metal hoses ideal for applications in chemically aggressive environments.
Metal hose marking
The article number of Eco-Flex metal hoses contains 3 digits separated by a dot and an alphanumeric designation.
The first 2 digits before the dot indicate the corrugation pitch:
- 01 – closed;
- 02 – standard;
- 03 – open.
The digit after the dot indicates the presence of braiding:
- 0 – no braiding;
- 1 – braiding.
The alphanumeric designation determines the nominal diameter of the metal hose in millimeters, for example DN12 – the nominal diameter of the metal hose is 12 mm.
Technical characteristics
| Article | Corrugation pitch | DN | Connection | Pressure at 20° C, bar |
|---|---|---|---|---|
| 01.0 DN12 | Closed | 12 | 1/2″ | 7 |
| 01.1 DN12 | Closed | 12 | 1/2″ | 40 |
| 02.0 DN12 | Standard | 12 | 1/2″ | 8 |
| 02.1 DN12 | Standard | 12 | 1/2″ | 95 |
| 02.0 DN16 | Standard | 16 | 3/4″ | 8 |
| 02.1 DN16 | Standard | 16 | 3/4″ | 90 |
| 02.0 DN20 | Standard | 20 | 1″ | 4 |
| 02.1 DN20 | Standard | 20 | 1″ | 70 |
| 02.0 DN25 | Standard | 25 | 1 1/4″ | 2,7 |
| 02.1 DN25 | Standard | 25 | 1 1/4″ | 60 |
| 02.0 DN32 | Standard | 32 | 1 1/2″ | 3 |
| 03.0 DN8 | Open | 8 | 1/4″ | 16 |
| 03.0 DN12 | Open | 12 | 1/2″ | 16 |
| 03.0 DN16 | Open | 16 | 3/4″ | 16 |
| 03.0 DN20 | Open | 20 | 1″ | 10 |
| 03.0 DN25 | Open | 25 | 1 1/4″ | 8 |
| 03.0 DN25 0.3 mm | Open | 25 | 1 1/4″ | 12 |
| 03.0 DN32 | Open | 32 | 1 1/2″ | 4 |
| 03.0 DN32 0.3 mm | Open | 32 | 1 1/2″ | 10 |
Where to buy?
