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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 Surface Warships 2019

Surface Warships 2019 is taking place 29 - 31 January, 2019 in London, UK

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Join DESMI at DDAC, 6-7 February 2019

Defence & Aerospace Conference is taking place February 6-7 in Aalborg, Denmark

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Join DESMI at INMEX Vietnam, 27-29 March 2019

The 7th Edition of The Leading & Definitive International Maritime Expo in Vietnam is held March 27-29 2019 in Ho Chi Minh City, Vietnam

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Join DESMI at Sea Asia, 9-11 April 2019

Asia's anchor maritime exhibition and conference returns to Singapore for its 7th edition from 9 - 11 April 2019

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Join DESMI at Expo Maritt, Turkey, 16-19 April 2019

The International Maritime Exhibition & Conference is taking place April 16-19 2019 in Istanbul, Turkey

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Join DESMI at CHEMUK, UK, 1-2 May 2019

The new 2 Day expo for the UK’s Chemical Industry is taking place May 1-2 2019 in Harrogate, Leeds City Region, UK

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Join DESMI at Atlantic Fair, Faroe Islands, 21-23 May 2019

 The Internatioan Maritime Exhibition is taking place May 21-23 2019 in Klaksvik, Faroe Islands

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Join DESMI at Spillcon, Australia, 20-24 May 2019

The international oil spill conference for the Asia-Pacific region, Spillcon 2019, is taking place May 20-24 in Perth, Australia

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Join DESMI at Bari Ship, 23-25 May 2019

Bari-Ship exhibition and conference is held May 23-25 in Ehime, Japan

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Join DESMI at Flowtech, 3-5 June 2019

The Flowtech China exhibition is taking place June 3-5 in Shanghai, China

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Join DESMI at Future Surface Fleet, 4-6 June 2019

The Future Surface Fleet 2019, is taking place June 4-6 in Portsmouth, UK

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Join DESMI at Nor-Shipping, June 4-7, 2019

The exhibition where the maritime and ocean industries meet every two years is taking place June 4-7 in Oslo, Norway

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Join DESMI at BuildExpo Kenya, 4-6 July 2019

East Africa's largest building and construction fair is taking place July 4-6 in Nairobi, Kenya

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Join DESMI at AquaNor, 20-23 August 2019

The world’s largest aquaculture technology exhibition is taking place August 20-23 2019 in Trondheim, Norway

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Join DESMI at Donsö Shipping Meet, 3-4 September 2019

Swedens biggest shipping event, Donsö Shipping Meet, is taking place September 3-4 in Gothenburg, Sweden

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Join DESMI at MAST, 4-6 September 2019

The MAST conference and trade-show is taking place September 4-6 in Chiba, Tokyo

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Join DESMI at BaltExpo, 9-11 September 2019

The 20th International Exhibition and Conferences BaltExpo is taking place September 9-11 2019 in Gdansk, Poland

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Join DESMI at NEVA, 17-20 September 2019

The 15th International Maritime Exhibition and Conferences of Russia is taking place September 17-20 in St. Petersburg, Russia

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Join DESMI at Inmex SMM 3 - 5 October 2019

South Asia's largest Maritime exhibtion & conference is taking place October 3-5 in Mumbai, India

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Join DESMI at DanFish, 9-11 October 2019

The exhibition for equipment to the fishing industry, DanFish, is taking place October 9-11 in Aalborg, Denmark

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Join DESMI at Kormarine, 22-25 October 2019

The International Marine, Shipbuilding, Offshore, Oil & Gas exhibition, Kormarine, is taking place October 22-25 in Busan, Korea

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Join DESMI at Europort 5-8 November 2019

The leading exhibition for special purpose vessels Europort is taking place November 5-8 in Rotterdam, Netherlands

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Join DESMI at Marintec China, 3-6 December 2019

The Maritime exhibition, Marintec China, is taking place December 3-6 in Shanghai, China

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