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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 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
 
 

Visit DESMI at Turbomachinery & Pump Symposia 2017 at stand no 1305

TPS is a vital industry event, offering a forum for the exchange of ideas between rotating equipment engineers and technicians worldwide.
In 2017 it is taking place the 12-14 September in Houston, Texas

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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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Come visit us at BWMTech North America 2017

The BWMTech in Miami is is taking place at Trump International Beach Resort 26-28 September 2017.

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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. You can find us at stand no L-50.

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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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Visit DESMI at Global HSE 2017

The 5th edition will be taking place the 21 - 22 September 2017 in Hyderabad, India.

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