Key features
Crane codes the range in bands of 0–2, 2–4, 4–6, 6–8, 8–10 and 10–13 bar, so the pump is specified to the duty rather than derated to it.
IP100 to IP800 covers 15 to 70 mm; XP200 to XP800 covers 35 to 91 mm for higher discharge volume.
The IP range is compliant to 94/9/EC II 2G c IIA T3. The XP range is not, so specify IP where the area is classified.
Crane rates it lowest for product degradation on viscous, abrasive and shear-sensitive media, because nothing passes a tight clearance.
NR, NBR, CSM and EPDM, plus food-grade NR on the IP range and food-grade NBR on the XP range.
One consumable, no seal and no valve. Budget the hose changes and there is little else to fail.
About the Crane ELRO Series IP and XP
The IP and XP are the fixed-plant end of the ELRO range, and they exist for media that destroy conventional pumps. Crane lists ceramic and porcelain, colour and painting, chemical, breweries, power stations and waste as the industries, which is a list of abrasive slurry and aggressive chemistry.
The two ranges differ in what they optimise. IP is the general industrial pump, with vacuum monitoring and the ATEX-compliant build. XP is the high-discharge-volume version, with feed and return flow as standard and a larger bore at each frame size: XP200 is 35 mm where IP200 is 30 mm, and XP800 is 91 mm where IP800 is 70 mm.
Weight tells you how these are installed. An IP100 is 46 kg and portable in the loose sense. An IP800 is 620 kg and an XP800 is 693 kg. Those are bolted-down machines with a hose change that needs planning and access, which is the honest limitation of the large sizes.
For mobile work, the Series T and Series M are the ranges to look at instead. They give up pressure to gain portability.
How an ELRO IP or XP peristaltic pump works
A shoe mounted on the rotor presses the hose flat against the pump body. As the rotor turns, that occlusion travels along the hose and pushes the trapped volume ahead of it to the discharge. Behind the shoe the reinforced hose springs back to its round bore, and the vacuum this creates draws the next charge in through the suction. That recovery is why the pump self-primes, and why Crane rates it to 9.5 m of dry suction lift with no foot valve or additional accessories.
Each turn moves a fixed volume, so it is positive displacement and flow holds as discharge pressure changes. Nothing rotates in the medium and nothing passes a tight clearance, which is what keeps shear low and stops grit wearing the pump the way it wears an impeller. The IP range adds vacuum monitoring on the hose chamber, so a hose failure is detected rather than discovered.
Specifications
| Types | IP100, IP200, IP400, IP600, IP800; XP200, XP400, XP800 | |
|---|---|---|
| Internal hose diameter | IP100 15 mm; IP200 30 mm; IP400 50 mm; IP600 60 mm; IP800 70 mm; XP200 35 mm; XP400 63 mm; XP800 91 mm | |
| Pumping pressure | coded in bands of 0–2, 2–4, 4–6, 6–8, 8–10 and 10–13 bar | |
| Dry suction lift | 9.5 m hydrostatic head | no additional accessories |
| Weight | IP100 46 kg; IP200 52 kg; IP400 157 kg; IP600 348 kg; IP800 620 kg; XP200 60 kg; XP400 176 kg; XP800 693 kg | |
| Hose material | NR, NBR, CSM (Hypalon), EPDM; NR food grade on IP; NBR food grade on XP | |
| Connection material | Stainless steel 1.4571, polypropylene, PVDF; electrically-conductive polypropylene on IP only | |
| Temperature range | NR -20 to +80 °C; NBR -10 to +80 °C; CSM -20 to +80 °C; EPDM -30 to +80 °C | |
| ATEX | compliant to 94/9/EC II 2G c IIA T3 | IP range only |
| Compliance | Machinery Directive 2006/42/EC, LVD 2006/95/EC, EMC 2004/108/EC, EN ISO 12100, EN ISO 13857, EN 809, EN 13463-1, EN 13463-5, Eurasian Conformity |
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Frequently asked
How does a peristaltic pump work?
A shoe on the rotor squeezes the hose flat against the pump body and carries the trapped volume to the discharge. The hose springs back behind it, and the vacuum that creates draws the next charge in. That is also what makes it self-priming.
What pressure can the ELRO IP and XP reach?
Crane codes the range in pressure bands up to 10–13 bar. The band is part of the pump code, so the machine is built to the duty rather than throttled down to it.
Is the ELRO IP range ATEX compliant?
The IP range is compliant to 94/9/EC II 2G c IIA T3. The XP range is not, so specify an IP if the pump sits in a classified area.
What is the difference between the IP and XP ranges?
XP is the high-discharge-volume build, with feed and return flow as standard and a larger hose bore at each frame size. IP is the general industrial pump, with vacuum monitoring and the ATEX-compliant option.
Which hose compound should I use?
NR for abrasive media and diluted acids and alkalis, NBR for oily and greasy media, CSM for acids, alkalis and colours, EPDM for hot water. The medium and its temperature decide it.