Thordon Secures Mexican Navy Deal
Thordon Bearings reports it has secured a second major Mexican Navy contract for the supply of its water-lubricated SXL wear rings for retrofit installation to the waterjet propulsion nozzles on 25 interceptor patrol vessels.The contract follows the success of extensive trials in which the SXL material replaced the use of other anti-corrosive coatings in waterjet impeller housings, resulting in increased resistance to cavitation induced corrosion.Rotary Parts, Thordon’s authorized distributor in Mexico, is supplying the housings for 25 Polaris and Polaris II fast patrol boats.
HamiltonJet Launches HJ215 Waterjet
New Zealand-based HamiltonJet has launched its HJ215 waterjet, an ideal propulsion solution for a wide range of boats, says the company.It is compact and lightweight and it is built for greater efficiency at high speeds, making it an excellent waterjet for thrill-seeking tourist crafts, search and rescue vessels and other marine sectors.The new factory-made TURBO II impeller option offers superior performance where acceleration and high thrust in aerated water are important. The…
MAN Energy Solutions and Doen WaterJets Partner for Australian Military Tender
MAN Energy Solutions and Doen WaterJets (DOEN) have agreed to join forces to offer a fully integrated propulsion system solution to the Australian Army’s LAND 8710 Littoral Manoeuvre Vessel Phase 1A (LMV-M) program.The program aims to acquire a medium landing craft suitable for a range of missions in Australia’s northern waters and beyond.The cooperation spans the full product lifecycle including propulsion system design, integrated logistics support and commissioning, through…
HamiltonJet Unveils HTX47 Waterjet
HamiltonJet said its new HTX47 waterjet has improved upon its previous jet model to offer a more seamless installation experience. Its new compact inboard footprint design and fully integrated hydraulics system ensures faster installation in the vessel.HTX47 new hydrodynamic design delivers 4% more high-speed efficiency, a 16% increase in peak bollard pull, and offers better operation at minimum speed, according to the manufacturer. It also features enhanced corrosion protection for more durability and expanded impeller rating range for greater compatibility for a wider range of engines.
Thordon Bearings Installed on ADNOC Offshore Platform
Thordon Bearings said Monday that its water-lubricated elastomeric polymer bearings have been installed to well pumps aboard an undisclosed offshore oil platform operated by Abu Dhabi National Oil Company (ADNOC).Five KSB three-stage mixed flow impeller-type pumps were each retrofitted with Thordon pump bearings - 13 SXL intermediate bearings, four Composite bearings and a single SXL throttle bearing - replacing the original silicon carbide bushes, the company said.Dubai-based engineering firm Ocean Power International (OPI)…
Castoldi Debuts New Waterjet for Large Vessels
Castoldi has launched the new Turbodrive 600 H.C.T. waterjet geared for large vessels.The largest in the Castoldi range to date, the new waterjet is equipped, like the other models of the range, with an integrated gearbox (certified for heavy duty ratings), with hydraulic clutch, that with its numerous gear ratios allows a match with any engine on the market.“Our aim is to supply to the customer with not only the waterjet but a complete package that incorporates the propulsion with integrated gearbox and clutch…
Waterjets For CTVs: Debunking The Myths
With more wind farms sprouting up in Europe, Asia and now here in the United States, a steady stream of crew transfer vessels (CTV) will be needed to support their construction, maintenance and operation. Typically aluminum catamarans, these vessels are deployed to ferry personnel and light equipment to and from offshore wind farms on a daily basis.While a solid portion of CTVs in the established European offshore wind market are propelled by waterjets, Adam Mills, sales director at Marine Jet Power…
ABS Approves 3D Printed Spare Parts After Tanker Trial
Parts fabricated by additive manufacturing (AM) – also known as 3D printing – and installed on an oil tanker for operational testing have been validated to be in good working condition, marking a significant step for the technology's implementation in the marine industry.The project involving ABS, ConocoPhillips Polar Tankers, Sembcorp Marine Ltd and 3D Metalforge started in February 2021 with the fabrication and lab-testing of functional additive manufactured parts, which were then installed on board the oil tanker Polar Endeavour.
Tech File: Aussie Bronze Pump Upgrade
When an old Stalker cast iron pump failed on Petuna Endeavour in the Southern Ocean, there was an urgent requirement for some fast action. The failed pump was replaced by an Aussie GMP model B3XR-A 5.5kw 3-in. NiAl bronze pump that fitted into the application area like a glove.The pump produces 1400 lpm flow and offers a maximum head of up to 26m. The 5.5kw motor means there’s loads of power to drive it and the pump, self priming in design, will draft water through a vertical…
Ship Repair: Inside the $60m Refit of RV Roger Revelle
This month MR dives inside the $60 million refit of RV Roger Revelle, a project which leverages a treasure trove of ‘lessons learned’ from recent refits in the academic research vessel fleet and highlights the value of slimming the vendor list.Research vessel (R/V) Roger Revelle is back at work after a midlife refit involving upgrades from top to bottom, bow to stern. The ship is owned by the Office of Naval Research and has been operated by Scripps Institution of Oceanography at the University of California San Diego since 1996. It is one of the largest ships in the U.S.
Aussie Pumps Wins Korean Navy Contract
A Sydney base pump manufacturer and defense contractor has won a contract, to supply 3” engine drive salvage pumps for the Republic Of Korea Navy. The pumps are unique and have application not only in Korea, but in warships and support vessels throughout the world."The original requirement was for a lightweight portable diesel drive salvage pump, capable of handling saltwater,” said Chief Engineer, John Hales. "We'd already developed high pressure firefighting pumps for seawater applications in the form of both the Seamaster and Sea Skipper diesel drive machines’…
Van Oord Orders Royal IHC Dredge System
Royal IHC, the provider of design and construction for the specialist maritime sector, has been awarded another contract by Van Oord to design and supply the dredge installation for its new 10,500m3 trailing suction hopper dredger (TSHD).The suction pipe installation with underwater pump, two dredge pumps and three jet water pumps will be installed on the new TSHD and built in Singapore.Earlier this year, IHC was commissioned to deliver similar systems for two other Van Oord TSHDs.“We were delighted to receive this repeat order from Van Oord, a long-standing and highly valued customer of ours,” says IHC Group Executive Director Diederik van Rijn.
Tech File: Sea Skipper Fire & Salvage Pump
After working with the Royal Australian Navy for several years, a small Australian pump manufacturer – Sydney-based Australian Pump Industries – which works on both the naval and commercial side of marine, developed a high-pressure fire and salvage pump dubbed the Sea Skipper, designed specifically for seawater applications. While engaged in maintenance work on Australia’s FFG fleet, Aussie Pumps’ Chief Engineer, John Hales, saw workboats using commercial grade, agricultural style…
New Pumps for Exhaust Gas Cleaning Systems
To curb global marine and air pollution, stricter limits on the sulphur dioxide content of marine exhaust gases stipulated by the EU and IMO (International Maritime Organization of the UN) will apply from 2020. From an engineering point of view, this can be achieved by using natural gas or fuels with a low sulphur content, and by cleaning the exhaust gases with a scrubber.For on-board exhaust gas cleaning systems KSB ITUR Spain S.A., a KSB Group company of located in Zarautz,…
Wärtsilä Modular Waterjets Upgraded
The technology group Wärtsilä has announced that its LJX series of modular waterjets has been upgraded to deliver even greater efficiency with low levels of cavitation and underwater noise. Following this upgrading, the company’s modular waterjets will be redesignated as the Wärtsilä WXJ series.The development is based on a new axial pump design, which boosts performance with an increased thrust of as much as 3 percent, while the improved cavitation margins help reduce the environmental impact by lowering noise levels.
Mitsubishi: JMP for Keel Cooler Pump
Whether it's a pushboat, longliner, ferry or box ship, maintaining an optimal temperature is essential to an engine's performance and longevity. A keel cooler pump is no place to cut corners. That's why Mitsubishi Turbocharger and Engine America, Inc. chose the reliability of JMP Corporation's JPR-ME5000 for seven of its heavy and continuous duty engines, and cites the company's ongoing support as the reason it continues to do so.At 158 gph at 2,850 rpm, the JMP Corporation JPR-ME5000 Bronze Impeller Cooling Pump is a real performer. It has 2" NPT in and 1.5" NPT out ports.
Oi: Tracking 50 Years of Ocean Innovation
As Oceanology International celebrates its 50th Anniversary, Marine Technology Reporter explores half a century of subsea technology development and discovery. Oceanology International Americas runs February 25-27, 2019 in San Diego.When Oceanology launched in 1969 in the seaside resort of Brighton the world was a very different place. For a start, Brighton was home to the mods and rockers, who would square off against each other on the town’s elegant seafront. The British currency included shillings and ha’ pennies and man had yet to step foot on the moon.More crucially…
Allweiler to Roll Out New Centrifugal Pumps
Allweiler GmbH, part of CIRCOR International, Inc., will exhibit its redesigned vertical centrifugal pump solutions for ship engine rooms at this year’s SMM fair in Hamburg.According to the manufacturer, a new innovative foot design reduces space requirements and improves operational safety."The new compact MA-S and MA-C series are vertically installed centrifugal pumps with axial inlets and radial outlets. The S version was designed for simple and rapid assembly and disassembly of the insert unit with impeller.
Aussie Pump Goes to Sea
Marine conservation group Sea Shepherd has recently installed another Aussie GMP bronze pump from Australian manufacture Australian Pump Industries, commonly known as Aussie Pumps. The unit is fitted to the M/Y Steve Irwin and forms part of the updated seawater sewer system.Brian Race from Sea Shepherd Global chose the Aussie because of its high-quality nickel aluminum bronze construction and open impeller. The open impeller will handle salt water with small compressible solids.Any…
Royal IHC, Jan de Nul Seal Dredge Pumps Seal
Royal IHC has been awarded a contract for the delivery of dredge pumps by Luxembourgbased Jan De Nul Group. The agreement incorporates two onboard double-walled dredge pumps for the company’s new 18,000m3 trailing suction hopper dredger (TSHD), as well as onboard single-walled dredge pumps for two other 6,000m3 TSHDs. “We are delighted that we have secured another order from Jan De Nul Group,” says Dave Vander Heyde, CEO of Royal IHC. IHC’s decades of experience in designing pumps and the ongoing research it conducts into performance improvements were key factors in Jan De Nul Group making them its first choice for this contract. Incorporating the latest technical developments…
DSC Dredge Digs In
The world of dredging is defined by the vast diversity of each assignment that contractors perform on any given day. Fortunately, DSC’s standard lineup of dredge equipment can be modified and customized to meet just about any job that needs doing. It wasn’t too long ago that retired U.S. Coast Guard Admiral Jim Loy told me, “If you’ve seen one port, well, you’ve seen one port.” That now-famous declaration was made in reference to port security in a post-9/11 world, but the quip is as valid now as it was when he said it during his tenure as Commandant of the U.S. Coast Guard. Similarly, it can also be said that if you’ve seen one dredging operation, well, then you’ve seen one dredging operation.
New Dredger for North Carolina’s Coastal Waterways
The North Carolina Department of Transportation recently took delivery of a new, fully customized cutter suction dredge, which it christened the Dredge Manteo in a ceremony held April 28, 2016, at the at the NCDOT State Shipyard in Manns Harbor, N.C.. The 154-foot state-of-the-art pipeline dredge, designed and built by DSC Dredge, based in Reserve, La., will work to keep North Carolina’s state-maintained intercostal ferry channels clear, from the Cape Fear River near Wilmington to Currituck Sound near the North Carolina-Virginia state line.
A Sea Change in Waterjet Technology
Longtime waterjet propulsion equipment provider NAMJet introduces key advancements for the workboat sector. Back in 2011, when boat builder Birdon went looking for a propulsion system that they could utilize in the bid phases of a multi-boat contract with the U.S. Army, they landed on NAMJet propulsion systems and its TRAKTOR Jet line of high-thrust marine jets. Subsequent to that, and because their Army Bridge Erection boat (BEB) concept, powered by NAMJet, performed so well, Birdon went ahead and purchased the company. Since then, NAMJet has gone on to blaze its own trail for propulsion solutions over a wide range of workboats. Denver-based NAMJet provides waterjet technology designed for a wide variety of commercial…