ERV White DN25-600
The ERV White rubber expansion joint is used for flexible connections in pipeline systems for food applications. The inner wall of this expansion
joint complies with German legislation on food-processing and is suitable for vegetable oils and fats. The expansion joint is not suitable for drinking
water. The flanges of the ERV White are rotatable and standard available in DIN PN10 and PN16. The operating temperature depends on the medium
and ranges from -20 °C to +90 °C. The maximum working pressure is 16 bar, 10 bar for larger diameters.
CONSTRUCTION
- Durable white nitrile rubber (NBR) inner wall, seamless
- PA textile reinforced
- Chloroprene (CR) outer wall
- Electrically non-conductive
- Rotating flanges, galvanized steel
APPROVALS
Approved by DNV-GL
OPTIONS
- Most sizes available in different neutral lengths
- Flanges according to DIN PN6, PN25, PN40, ASA 150 lbs or BS10
- Flanges in stainless steel or bronze
- Tie rods
- PTFE lining
- Vacuum support rings
- Fire protection cover
Product data
| PART No. | INSIDE DIAMETER A (MM) | LENGTH B (MM) | WORKING PRESSURE (BAR) | FLANGE DIMENSIONS CLASS | OUTSIDE DIAMETER C (MM) | PITCH D (MM) | E x F (NUMBER x MM) |
| 300 045 025 | 25 | 130 | 16 | DIN PN10/16 | 115 | 85 | 4x14 |
| 300 045 032 | 32 | 130 | 16 | DIN PN10/16 | 140 | 100 | 4x18 |
| 300 045 040 | 40 | 130 | 16 | DIN PN10/16 | 150 | 110 | 4x18 |
| 300 045 050 | 50 | 130 | 16 | DIN PN10/16 | 165 | 125 | 4x18 |
| 300 045 065 | 65 | 130 | 16 | DIN PN10/16 | 185 | 145 | 4x18 |
| 300 045 080 | 80 | 130 | 16 | DIN PN10/16 | 200 | 160 | 8x18 |
| 300 045 100 | 100 | 130 | 16 | DIN PN10/16 | 220 | 180 | 8x18 |
| 300 045 125 | 125 | 130 | 16 | DIN PN10/16 | 250 | 210 | 8x18 |
| 300 045 150 | 150 | 130 | 16 | DIN PN10/16 | 285 | 240 | 8x22 |
| 300 045 201 | 200 | 130 | 10 | DIN PN10 | 340 | 295 | 8x22 |
| 300 045 200 | 200 | 130 | 16 | DIN PN16 | 340 | 295 | 12x22 |
| 300 045 251 | 250 | 130 | 10 | DIN PN10 | 395 | 350 | 12x22 |
| 300 045 250 | 250 | 130 | 16 | DIN PN16 | 405 | 355 | 12x26 |
| 300 045 301 | 300 | 130 | 10 | DIN PN10 | 445 | 400 | 12x22 |
| 300 045 300 | 300 | 130 | 16 | DIN PN16 | 460 | 410 | 12x26 |
| 300 045 351 | 350 | 200 | 10 | DIN PN10 | 505 | 460 | 16x22 |
| 300 045 401 | 400 | 200 | 10 | DIN PN10 | 565 | 515 | 16x26 |
| 300 045 501 | 500 | 200 | 10 | DIN PN10 | 670 | 620 | 20x26 |
| 300 045 601 | 600 | 200 | 10 | DIN PN10 | 780 | 725 | 20x30 |
Movements
The maximum movements for the ERV White expansion joint stated below apply to the neutral length for operating temperatures up to +50 ºC and are not in combination (no lateral/axial movements simultaneously). The permissible movements are reduced by 25% for temperatures between +50 ºC and +70 ºC and by 40% for temperatures between +70 ºC and +90 ºC. The use of the optional vacuum ring leads to a reduction of 50%.
| NOMINAL DIAMETER (MM) | COMPRESSION (MM) | ELONGATION (MM) | LATERAL (MM) | ANGULAR (DEGREES) |
| 25-80 | 30 | 20 | ± 30 | ± 30 |
| 100-150 | 30 | 20 | ± 30 | ± 20 |
| 200 | 25 | 30 | ± 30 | ± 10 |
| 250-300 | 10 | 30 | ± 15 | ± 5 |
| 350-600 | 40 | 35 | ± 30 | ± 8 |
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