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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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Visit DESMI at OMC 2017

DESMI will be present at the OMC Offshore Mediterranean Conference & Exhibtion held in Ravenna, Italy 29-31 March 2017. Locate us at booth C20 in Hall 2..

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Come visit us at the Atlantic Fair 2017

The Atlantic Fair is taking place 9th-11th May in Klasvik, Faroe Islands.

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Come visit us at Maritime Industry 2017

The Maritime Industry is taking place 9th-11th May in Gorienchem, The Netherlands.

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Visit DESMI at All Energy 2017

The UK's premier event for renewable energy and sustainable technologies is taking place in Glasgow, UK, 10th-11th May.

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Come visit us at IOSC 2017

The International Oil Spill Conference provides a vital forum for professionals from the international response community,
private sector, government and non-governmental organizations. It is taking place from 15-18th of May in Long Beach, CA.

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Visit DESMI at REITZE TEC 2017

Technique, Trends & Innovation is the keywords at this years REITZE TEC exherbition in Bremen.
Join us the 17th and 18th of May 2017.

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Visit DESMI at BARI-SHIP 2017

Join us the 25th to 27th of May 2017 at the Imabari Maritime Fair in Japan.

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Come visit us at Nor-Shipping 2017

For more than 50 years Nor-Shipping has been attracting key maritime industry players from around the world. 
It is taking place May 30 - June 2 2017 in Oslo, Norway.

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Visit DESMI Future Surface Fleet 2017

DESMI will be present at the Future Surface Fleet Conference in Portsmouth, Englad 6-8 June 2017.

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Visit DESMI at AquaNor 2017

Since 1979, Aqua Nor has been an important international meeting place for the aquaculture industry.
In 2017 it is taking place the 15-18 August in Trondheim, Norway.

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Come visit us at Donsö Shipping Meet 2017

Swedens biggest shipping event is taking place 5-6 September 2017 in Donsö, Sweden.

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Come visit us at BaltExpo 2017

The 19th International Exhibition and Conferences BaltExpo will be held 11-13 September 2017 in Gdánsk, Poland
 
 

Come visit us at NEVA 2017

Neva is an international shipping, shipbuilding, ports and offshore energy exhibition and the largest maritime forum in Russia. 
It is taking place  19. - 22. September 2017 in Saint Petersburg, Russia.

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Visit DESMI at INMEX SMM India 2017

South Asia's largest maritime exhibition and conference is taking place in Mumbai, India the 3rd-5th of October 2017.

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Come visit us at DanFish 2017

One of the world's largest trade fairs for equipment for the fishing industry is taking place in Aalborg, Denmark the 11th-13th of October.

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Come visit us at Kormarine 2017

The 39th edition of Kormarine is taking place 24-27 of October in Busan, Korea.
Visit DESMI as we exhibit our marine pumping solutions

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Visit DESMI at Europort 2017

The international maritime meeting place for innovative technology and complex shipbuilding is taking place
in Rotterdam, The Netherlands, 7th-10th November.

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Come visit us at Marintec 2017

The largest maritime event in the Asia Pacific is taking place from the 5-8th of December in China.

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