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Description
Raflex stainless steel corrugated hoses for gas are tested with DVGW-approved connection fittings in accordance with DIN 3384 and are DIN-DVGW approved as complete corrugated hose lines. The corrugated hose lines are used for the stress-free connection of gas appliances and fittings and for assembly equalisation of assemblies. They are approved for all types of gas in accordance with DVGW worksheet G 260.
Version
Hose: DWNR 1.4541 oder 1.4404
Braid: DWNR 1.4301
Temperature resistance
In welded version: 400 °C In brazed version: 200 °C
Connection types
Flanges and loose flanges with collar or flare, screw connections, threaded nipples or threaded sockets, weld-on ends and pipe sockets made of stainless steel, steel, malleable cast iron and Cu-Zn alloy.
Connection types
TIG – welded or brazed.
Lengths
According to customer requirements
Labelling
Raflex stainless steel corrugated hose lines for gas in accordance with DIN 3384 are labelled on the connection as follows: Manufacturer’s mark, type, order number, DIN-DVGW-REG. no., DIN 3384, nominal diameter (DN), operating overpressure (PN), date.
Installation instructions
Raflex stainless steel corrugated hose lines for gas in accordance with DIN 3384 are ready-to-install elements that can be installed properly and professionally using standard installation tools. The hose lines must be installed torsion-free during assembly.
Stainless steel hose material 1.4541/1.4404 (AISI 321/316L),
with or without braid material 1.4301/1.4404 (AISI 304/316L)
| ID | Outer diameter | max. permitted operating pressure at 20° C | Bending radius | Weight | |||||
| Nominal diameter |
Description | ID mm |
AD mm |
zul. Abw. mm |
Bar | static mm |
dynamic mm |
Wall thickness (mm) | kg/m ±10% |
| 12 | HR I/S-W-012 | 12,2 | 16,5 | ±0,4 | 16 | 20 | Not suitable for dynamic loads and frequent movement | 0,15 | 0,09 |
| 16 | HR I/S-W-016 | 16,3 | 21,4 | ±0,4 | 10 | 25 | 0,18 | 0,14 | |
| 20 | HR I/S-W-020 | 20,4 | 26,7 | ±0,4 | 10 | 30 | 0,18 | 0,19 | |
| 25 | HR I/S-W-025 | 25,4 | 31,8 | ±0,4 | 6 | 35 | 0,2 | 0,25 | |
| 32 | HR I/S-W-032 | 34,5 | 41,1 | ±0,4 | 4 | 40 | 0,2 | 0,33 | |
The descriptions, tables and calculation formulas contained in the technical information are merely examples and not binding. After the customer has specified the required parameters, the technical design is carried out by our specialist department..
Where standards are specified, these are only reproduced in extracts. The most recent edition of the standard mentioned is binding.
Tradition and family values such as loyalty and reliability have always played a major role at RATTAY.
