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FAQ's


Are ROTAN® Pumps dimensionally interchangeable with competitive products? 
 

Yes and No. In cases where the competitive pump is a direct copy of ROTAN®, we obviously can supply the "real" pump. In other cases, it is highly likely that there will be a ROTAN® model that will "fit", and that it will have a capacity sufficiently close to the pump being replaced, so that existing drive equipment can be utilized. 
 
Does ROTAN® supply parts for other manufacturer's pumps?  
No, ROTAN® parts are not dimensionally interchangeable with competitor's pumps. The one exception is where the competitor has "cloned" ROTAN®
 
What is the direction of pumping?  
All ROTAN® pumps work equally well in both directions, and pumping direction is determined by the driver's direction of rotation. Seen from the pumpshaft end, clockwise rotation will pump from right to left and vice versa. If fitted, the relief valve should be oriented, so the part containing the spring is on the suction side. 
 
Is a ROTAN® pump self-priming?  
Yes, ROTAN® pumps have excellent suction capabilities. When operating under low suction pressure conditions, it is always a good idea to do an NPSH calculation as part of the selection process. 
 
How long will a ROTAN® pump last?  
This is highly dependent on the operating conditions and optimal initial selection of pump configuration. Rotan pumps have been known to operate continuously in excess of 30 years without maintenance when handling lubricating products. On the other hand, some installations are so arduous (viz. high degree of abrasive content), that the pumps are overhauled at intervals of just a few weeks. 
 
What is the highest pressure?  
Again, this is dependent on many parameters. In general terms, ROTAN® pumps are available for system pressures up to 500 PSI and differential pressures to 300 PSI. 
 

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Join DESMI at SEAWORK 2018

Locate DESMI at the SEAWORK Exhibition the 3-5 of July in Southampton, United Kingdom.

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Join DESMI at Nigeria Oil & Gas Conference & Exhibition 2018

Locate DESMI at the Nigeria Oil & Gas Conference & Exhibition the 2-5 of July in ICC, Abuja, Nigeria.

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Join DESMI at Oil Spill India 2018

Locate DESMI at the Oil Spill India Exhibition the 5-6 of July in New Delhi, India.

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Join DESMI at Nor-Fishing 2018

Nor-fishing is one of the largest fisheries technology exhibitions in the world and in 2018 its taking place 21-24. August in Trondheim, Norway

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Join DESMI at SMM 2018

SMM is the world’s leading trade fair for the maritime industry taking place the 4-7 of September 2018, in Hamburg, Germany. Locate DESMI at the Danish Pavilion stand nr. B1.EG.310¨.

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Join DESMI at The Water and Wastewater Fair 2018

The Water and Wastewater Fair (VA-Mässan) is taking place from the 25-27 of September in the Elmia Centre, in Jönköping, Sweden. Locate DESMI at stand no. B03:19.

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Join DESMI at Euronaval 2018

The world meeting of naval technologies for the future taking place October 23-26 in Paris Le Bourget.

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Join DESMI at Ajour 2018

Locate DESMI at the engineers’ business conference, Ajour 2018 the 29-30 of October in Odense Congress Center, Denmark.

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Join DESMI at DDAC 2018

The Danish Defence Annual Conference 2018 is taking place 7-8 of November, 2018 in Copenhagen, Denmark.

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Join DESMI at Seatrade Offshore Marine & Workboats Middle East 2018

Seatrade Offshore Middle East is taking place the 29 – 31 of October 2018 in the Abu Dhabi National Exhibition Centre, Abu Dhabi, United Arab Emirates.

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Join DESMI at the Workboat show 2018

The International Workboat show 2018 is taking place in New Orleans.

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Join DESMI at Clean Gulf 2018

The CLEAN GULF Conference & Exhibition focuses on improving oil and hazardous materials spill prevention, preparedness and response for inland, offshore and coastal incidents.

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Join DESMI at Achema 2018

Once again Achema is gathering the process industry, colleagues and business partners from around the world in Frankfurt, Germany and DESMI will once again be present at the exhibition in the pump hall 8.0 at stand no. F36.
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