ERV-G is a universal rubber expansion joint for all types of petroleum products, as well as natural gas. The most common model for fuel and oil and gas pipelines: dampens vibration and compensates for displacement.
Elaflex · Germany
| Type | Rubber (flexible) expansion joint, flanged |
|---|---|
| Nominal bore, DN | 25-1000 mm |
| Working pressure, PN | 10 / 16 bar |
| Medium temperature | −30 to +90 °C (depends on the medium) |
| Working medium | petroleum products, gasoline, diesel fuel, mineral oils, natural gas |
| Not to be used for | concentrated acids and alkalis |
| Inner layer (lining) | nitrile butadiene rubber (NBR) |
| Outer layer | NBR/CR, oil- and ozone-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 |
| 700 | 10 | 895 | 840 | 24×30 | 260 |
| 800 | 10 | 1015 | 950 | 24×33 | 250 |
| 900 | 10 | 1115 | 1050 | 28×33 | 300 |
| 1000 | 10 | 1230 | 1160 | 28×36 | 300 |
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-G is a universal rubber expansion joint for all types of petroleum products, as well as natural gas. The most common model for fuel and oil and gas pipelines: dampens vibration and compensates for displacement.
The inner layer is made of nitrile butadiene rubber (NBR), resistant to oils and gasoline. Diameters DN 25-1000 mm, flanges DIN PN 10/16. Selection and calculation are based on the parameters of the object.
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.