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Marine
Wanner™ Hydra-Cell® Pro seal-less pumps enable more environmental marine fuels and the use of seawater in on-board applications.
Alternative Marine Fuels
Environmental concern, reduction of SOx and NOx emissions, is driving large changes in the types of liquids used as fuels for marine engines. This is leading to the search for liquid fuels which will dramatically reduce or eliminate polluting emissions. Alternative fuels under serious consideration and growing use include, LNGs (Liquid Natural Gases), Methanol and Ammonia.
There are challenges in ping these liquids:
- All have very low viscosities and are non-lubricating
- Involve higher system pressures
- Are more volatile resulting in explosive risk assessment
- Some are more toxic than the tradition heavy fuel oils.
The Hydra-Cell® Pro pumps seal-less design, hydraulically balanced diaphragms delivering high pressure performance addresses all the points above, meeting the challenges of the Marine industry. ATEX certification from an independent notified body ensures that the Hydra-Cell pump is safe to use in classified explosive zones.
Reliability, easy minimal servicing, adaptability and zero leakage are all important attributes a pump should have for marine service. Hydra-Cell Pro seal-less simple design ensures compliance to all these attributes.
Hydra-Cell Pro industrial marine pumps are able to handle the low-sulfur diesel fuels required by new environmental regulations, that are thin and non-lubricating. Moreover their viscosity further reduces as they get hotter. Hydra-Cell Pro’s seal-less design is the optimum technology for handling these new fuels in marine industry pumping applications, and keeping them safely contained. Energy and installation costs are also saved as other pump technologies in the marine industry may require expensive fuel cooling units to keep the viscosity of the fuel high enough not to cause problems.
All dynamic seals leak a small amount. Hydra-Cell Pro's seal-less design keeps the ultra low-sulfur fuel safely contained. With no leakage, there is no need for equipment to monitor fuel leaks.
Emission control regulations also apply directly to the exhaust gases of marine engines. Urea, seawater and lime slurries are among the control chemicals reliably delivered to the exhaust by Hydra-Cell Pro pumps.
Onboard Reverse Osmosis Systems
High pressure capability and smooth flow, along with seawater compatibility, Hydra-Cell Pro pumps are used in reverse osmosis systems on ships and offshore rigs for producing drinking water. The pump can also run dry, so an operator’s mistake will not damage it.
Washdown & Cleaning
Raw seawater is often used in deck washdown and other cleaning operations at sea. Seal-less Hydra-Cell Pro pumps can handle it with minimal filtration, can provide effective discharge pressure for cleaning, and also offer several drive options to simplify installation.
Chemical Metering
With accurate virtually pulse-less metering capabilities, Hydra-Cell Pro pumps are also used for chemical dosing, conserving supplies, ensuring greater dosing efficiency and cost savings.
Applications
- Reverse Osmosis
- Emissions control
- Ultra-low sulfur fuels
- Cleaning
- Metering & dosing of ballast treatment chemicals
Featured pumps
See All Pumps
D/G35 with stainless steel pump head
D/G66 with stainless steel pump head
Q155 with stainless steel pump head
Wanner Application Briefs
One problem for fishing fleet operators is the short life of certain salt water pumps. In particular the salt water pumps used for cleaning on the fishing vessels. The second problem relates to the hazard and inconvenience of electric motors and connectors in the wet environment. The fishing fleet goes to sea for six weeks at a time. It leaves with an empty hold and returns with frozen fillets of fish, ready for the wholesalers. The cleaning and packaging operation takes place in the boat while at sea. The operators must keep the cleaning and packaging area clean and cannot afford downtime.
The short life of the certain salt water pumps (plunger pumps) was due to the quality of the water being pumped. The fishing vessel uses sea water which has just enough abrasive material in it to cause the failure of the plunger pumps. Screening, filtering and other cumbersome attempts had been made to clean the water sufficiently enough for the plunger pumps. Hydra-Cell Pro salt water pumps, have no cups, packings or seals, and can easily handle sea water and the minor debris in it.
To drive the Hydra Cell Pro salt water pumps, there was ample hydraulic pressure on the boats - a clean, efficient way to eliminate the electrical concerns.
The Hydra Cell Pro Salt Water Pumps have been successfully pumping sea water for years, but here's an application where the salt water pump goes under and becomes part of the sea. A remote-controlled rescue submarine, called the Remora, for a parasitic fish that attaches itself to larger creatures, incorporates an H25 salt water pump into its system. The Remora locks itself on to the hatch of a disabled sub and the H25 salt water pump is used to pump the salt water out between the two vessels so that both hatch doors can be opened to allow the crew of the disabled sub to safely escape into the rescue sub. The salt water pump and motor are actually mounted outside of the unit and operate to depths of 1,640 feet (500 m). Certain modifications were necessary to adjust for the pressure difference in the oil cap and shaft seals.
A natural sponge supplier sends divers underwater for long periods of time to collect sponges. In order to optimize their sponge gathering, the divers want to stay submerged as long as possible. Unfortunately, the ocean water temperature is too cold to allow them to stay submerged as long as they would like, even when they are wearing wet suits. To solve this problem, they purchased a D10 salt water pump to pump hot sea water into the diver's suits keeping them warm. The umbilical cord connected to the diver (one set of lines supplies oxygen, one set supplies the hot water) directly from the surface or through a hyperbolic bell. The Hydra-Cell Pro salt water pump was selected due to its ability to handle salt water, various temperatures and varying the drive speed, flow and pressure as temperature requirements change. This is important since they dive in many different environments and different "modes".
Seawater at high pressure is used to keep the work areas clean onboard a New Zealand fishing vessel, and the crew cannot afford unplanned downtime. The cleaning systems originally used plunger pumps, but salt water is corrosive and caused rapid seal wear and early failure of the seal-reliant plunger-type pumps. The original pumps were then replaced Hydra-Cell Pro seal-less high-pressure cleaning pumps.
We can help
Wanner’s technical engineers can assist you in selecting a Hydra-Cell Pro seal-less pump to reliably handle your most challenging process liquids.
- Low NPSH due to High vapour pressure?
- Need assistance or support with NPSH in terms of system design?
- Are you replacing other pump technologies for abrasive/slurry duty application?
- Our technical engineers can assist with selecting a Hydra-Cell seal-less pump to reliably handle your process liquid.
