Variant ER.S
| Technical Specifications | Standard | Optional |
|---|---|---|
| Material | Cast iron | Special material (pump head only) |
| Diaphragm | NBR | EPDM | FKM (Viton®) | CSM (Hypalon®) | CR (Neoprene®) |
| Valve ball | Polyurethane | Stainless steel | Ceramic | PTFE | NBR | Neoprene |
| Valve seat | Polyurethane | Stainless steel | PPH | PTFE | NBR |
| Pressure | 1.6 MPa (16 bar) Standard | Optional HD version |
| Pulsation damper | Air chamber | Diaphragm shock absorber |
| Paint finish | RAL 7015, slate gray (standard finish) | - |
| Diaphragm monitoring | Visual diaphragm rupture indicator | Diaphragm rupture indicator with pressure switch |
| Base | Pump stand | Base frame |
| Air supply | Air supply fitting | Sniff valve |
| Air flow meter | - | Optionally available |
| Inspection cover on valve housing | Standard | - |
| Pressure gauge | Bourdon tube pressure gauge | Diaphragm pressure gauge |
| Sizes | ER491S | ER501S - ER521S | ER510S - ER520S | ER528 | ER535 | ER537 |
|---|---|---|---|---|---|---|
| Flow rate [m³/h] | 0.5 – 2 | 2 – 6 | 6 – 12 | 15–25 | 30–35 | 40–50 |
| Suction flange | DN 32 | DN 65 | DN 65 | DN 100 | DN 125 | DN 125 |
| Pressure flange | DN 32 | DN 65 | DN 65 | DN 80 | DN 125 | DN 125 |
| Motor [kW] | 0.55 – 2.2 | 2.2 – 7.5 | 4 – 7.5 | 11–15 | 18.5 – 22 | 30 |
| Length approx. [mm] | 1067 | 1284 – 1541 | 1228 – 1356 | 1599 | 1933 | 1931 |
| Width approx. [mm] | 419 – 550 | 475 – 650 | 835 | 926 | 1297 | 1296 |
| Height approx. [mm] | 1317 | 1488–1675 | 1527 – 1607 | 2257 | 2470 | 2498–2549 |
Variant ER.SG
| Technical Specifications | Standard | Optional |
|---|---|---|
| Material | Rubber-lined cast iron | - |
| Diaphragm | NBR | EPDM | FKM (Viton®) | CSM (Hypalon®) | CR (Neoprene®) |
| Valve ball | Polyurethane | Stainless steel | Ceramic | PTFE | NBR | Neoprene |
| Valve seat | Polyurethane | Stainless steel | PPH | PTFE | NBR |
| Pressure | 1.6 MPa (16 bar) Standard | Optional HD version |
| Pulsation damper | Air chamber | Diaphragm shock absorber |
| Paint finish | RAL 7015, slate gray (standard finish) | - |
| Diaphragm monitoring | Visual diaphragm rupture indicator | Diaphragm rupture indicator with pressure switch |
| Base | Pump stand | Base frame |
| Air supply | Air supply fitting | Sniff valve |
| Air flow meter | - | Optionally available |
| Inspection cover on valve housing | Standard | - |
| Pressure gauge | Bourdon tube pressure gauge | Diaphragm pressure gauge |
| Sizes | ER491SG | ER501SG – ER521SG | ER510SG – ER520SG |
|---|---|---|---|
| Flow rate [m³/h] | 0.5 – 2 | 2 – 6 | 6 – 12 |
| Suction flange | DN 32 | DN 65 | DN 65 |
| Discharge flange | DN 32 | DN 65 | DN 65 |
| Motor [kW] | 0.55 – 2.2 | 2.2 – 7.5 | 4 – 7.5 |
| Length approx. [mm] | 1070 | 1294 – 1551 | 1360 – 1488 |
| Width approx. [mm] | 419 – 550 | 475 – 650 | 850 |
| Height approx. [mm] | 1434 | 1525 – 1695 | 1565 – 1615 |