Product Description

The ERV Green rubber expansion joint is used for flexible connections in pipeline systems for chemicals, acids, alkalies, and chemically aggressive wastewater. The flanges of the ERV Green are rotating and standard available in DIN PN10 and PN16. The maximum working pressure is 16 bar or 10 bar for larger diameters. The operating temperature of this expansion joint ranges from -20° to 100 °C. Additionally, the ERV green can also be used for applications with oil-contaminated air with temperatures up to 90 °C.

CONSTRUCTION

  • Durable seamless Hypalon (CSM) inner wall
  • PA-textile reinforced bellows
  • Hypalon (CSM) 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 50 lbs or BS10
  • Flanges in stainless steel or bronze
  • Tie rods
  • PTFE lining
  • Vacuum support rings
  • Fire protection cover
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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)
300 044 025 25 130 16 DIN PN10/16 115 85 4x14
300 044 032 32 130 16 DIN PN10/16 140 100 4x18
300 044 040 40 130 16 DIN PN10/16 150 110 4x18
300 044 050 50 130 16 DIN PN10/16 165 125 4x18
300 044 065 65 130 16 DIN PN10/16 185 145 4x18
300 044 080 80 130 16 DIN PN10/16 200 160 8x18
300 044 100 100 130 16 DIN PN10/16 220 180 8x18
300 044 125 125 130 16 DIN PN10/16 250 210 8x18
300 044 150 150 130 16 DIN PN10/16 285 240 8x22
300 044 201 200 130 10 DIN PN10 340 295 8x22
300 044 200 200 130 16 DIN PN16 340 295 12x22
300 044 251 250 130 10 DIN PN10 395 350 12x22
300 044 250 250 130 16 DIN PN16 405 355 12x26
300 044 301 300 130 10 DIN PN10 445 400 12x22
300 044 300 300 130 16 DIN PN16 460 410 12x26
300 044 351 350 200 10 DIN PN10 505 460 16x22
300 044 401 400 200 10 DIN PN10 565 515 16x26
300 044 501 500 200 10 DIN PN10 670 620 20x26
300 044 601 600 200 10 DIN PN10 780 725 20x30

Movement
The maximum movements for the ERV Green 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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