ERV-GS HNBR is a reinforced version of the Elaflex expansion joint for extreme operating conditions. The lining made of hydrogenated butadiene-nitrile rubber (HNBR) provides increased heat and wear resistance, including short-term resistance to high temperatures.
Elaflex · Germany
| Type | Rubber (flexible) expansion joint, flanged |
|---|---|
| Nominal bore, DN | 25-600 mm |
| Working pressure, PN | 10 / 16 bar |
| Medium temperature | elevated; short—term - high temperatures |
| Working medium | petroleum products, oils, cooling liquids in harsh conditions |
| Not to be used for | concentrated acids |
| Inner layer (lining) | hydrogenated nitrile rubber (HNBR) |
| Outer layer | HNBR, heat and wear resistant |
| Flanges | swivel type, DIN PN 10/16, galvanised steel (optionally stainless steel, bronze or aluminium) |
| Marking | ERV / type, DN, PN, date of manufacture |
Exact movements and permissible vacuum depend on the size and face-to-face length and are determined during selection. Full data is given in the technical data sheet (PDF).
| DN | PN, bar | D, mm | k, mm | Holes n×d | L, mm |
|---|---|---|---|---|---|
| 25 | 16 | 115 | 85 | 4×14 | 130 |
| 32 | 16 | 140 | 100 | 4×18 | 130 |
| 40 | 16 | 150 | 110 | 4×18 | 130 |
| 50 | 16 | 165 | 125 | 4×18 | 130 |
| 65 | 16 | 185 | 145 | 4×18 | 130 |
| 80 | 16 | 200 | 160 | 8×18 | 130 |
| 100 | 16 | 220 | 180 | 8×18 | 130 |
| 125 | 16 | 250 | 210 | 8×18 | 130 |
| 150 | 16 | 285 | 240 | 8×22 | 130 |
| 200 | 10 | 340 | 295 | 8×22 | 130 |
| 250 | 10 | 395 | 350 | 12×22 | 130 |
| 300 | 10 | 445 | 400 | 12×22 | 130 |
| 350 | 16 | 505 | 460 | 16×22 | 200 |
| 400 | 16 | 565 | 515 | 16×26 | 200 |
| 450 | 10 | 615 | 565 | 20×26 | 200 |
| 500 | 10 | 670 | 620 | 20×26 | 200 |
| 600 | 10 | 780 | 725 | 20×30 | 200 |
D is the flange outside diameter, k the bolt circle diameter, n×d the holes, L the standard face-to-face length. Flange dimensions to DIN PN 10/16. Weight and effective area depend on the size and are given in the data sheet or on request. Other flange standards and materials are available to order.
ERV-GS HNBR is a reinforced version of the Elaflex expansion joint for extreme operating conditions. The lining made of hydrogenated butadiene-nitrile rubber (HNBR) provides increased heat and wear resistance, including short-term resistance to high temperatures.
Diameters DN 25-600 mm, flanges DIN PN 10/16. The operating parameters for a specific environment and temperature regime are specified during selection.
We receive the parameters or questionnaire and select the series and size.
We calculate movements and thrust forces and prepare an offer.
Shipped from stock or made to order with the required flange configuration.
Installation, installation supervision and commissioning on site where required.
Send the parameters or a questionnaire — we will prepare a calculation and a quotation.
Request a quoteLeave your contact details — we will select the model and prepare a quotation. We reply within one working day.