ERV-GS is a rubber expansion joint Elaflex for cooling systems of stationary and marine diesel engines. It senses vibrations and movements in the coolant and oil circuits.
Elaflex · Germany
| Type | Rubber (flexible) expansion joint, flanged |
|---|---|
| Nominal bore, DN | 25-600 mm |
| Working pressure, PN | 10 / 16 bar |
| Medium temperature | -30 ... +100 °C (depends on the environment) |
| Working medium | coolant, water-glycol, oil, fuel |
| Not to be used for | concentrated acids |
| Inner layer (lining) | nitrile butadiene rubber (NBR) |
| Outer layer | NBR, oil- and heat-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 is a rubber expansion joint Elaflex for cooling systems of stationary and marine diesel engines. It senses vibrations and movements in the coolant and oil circuits.
Lining NBR, diameters DN 25-600 mm, flanges DIN PN 10/16. Selection for contour parameters is based on a questionnaire.
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.