Elevating Defense Solutions: SIT and JARP Join Forces at Sea Air Space Show

We’ll be showcasing our innovative solutions at the upcoming Sea Air Space show from April 8th to 10th in National Harbor, MD with our valued partner JARP, a global leader in hydraulic cylinder manufacturing. At SIT, we pride ourselves on delivering exceptional defense solutions, and partnering with JARP allows us to offer even more robust capabilities to our customers.

JARP has established itself as a pioneer in the industry, specializing in the design, engineering, and manufacturing of high-quality custom hydraulic cylinders for a wide range of demanding applications. Their expertise extends to corrosion-resistant cylinders, high-pressure hydraulic cylinders, and military-grade solutions, making them a perfect match for our defense-focused projects.

Here’s a glimpse into some of the cylinder solutions that JARP brings to the table:

  1. Corrosion-Resistant Cylinders: JARP’s cylinders are built to last in harsh environments. Whether it’s for commercial, defense, or offshore applications, they craft custom solutions that can withstand corrosion with specialized materials and coatings, ensuring longevity even in marine settings.
  2. High-Pressure Hydraulic Cylinders: Engineered for durability, JARP’s high-pressure cylinders are ideal for customers dealing with space or weight constraints. These cylinders are ruggedly designed to excel in complex applications and challenging environments.
  3. Military Hydraulic Cylinders: With a focus on military and defense applications, JARP delivers reliable hydraulic cylinder solutions that prioritize functionality and safety, even in the most hazardous conditions.

At SIT, our experience in defense projects speaks for itself. From custom manifolds to steering gears, cranes, anchors, and free-standing tanks, we have consistently delivered top-notch solutions tailored to the unique needs of our clients.

Together, SIT and JARP offer a comprehensive suite of integrated, functional, and secure solutions across various industries. Our combined capabilities not only meet but exceed the stringent specifications of equipment applications, all while adhering to timelines and budgets.

We invite you to visit booth #411 at Sea Air Space next month to explore firsthand the synergies between SIT and JARP. Discover how our collaboration is shaping the future of defense solutions, and learn more about the cutting-edge technologies we bring to the table. Join us as we elevate the standards of excellence in defense engineering.

Dive into Subsea Solutions with SIT

We’re excited to announce our presence at Subsea Tieback next week in San Antonio, TX at the Henry B. Gonzalez Convention Center February 27th – 29th, 2024 where we’ll be showcasing our subsea capabilities. If you’re attending, make sure to stop by booth #418!

From powering ROV thrusters and tool testing with hydraulic power units, to implementing remote valve actuation solutions for manifold operations, we’ve got you covered. Our launch and recovery systems make equipment deployment a breeze, while our shock and load deceleration technology ensures safety and efficiency.

At SIT, we pride ourselves on being your go-to for all things subsea. Whether you’re in need of mooring solutions or seeking innovative project solutions, we’ve got the expertise to make it happen. Check out some of our subsea project highlights below:

So, if you’re attending Subsea Tieback, be sure to swing by our booth #418 to learn more about how SIT can elevate your subsea projects.

Electrical Capabilities at SIT

SIT is your premier partner for customized solutions across a spectrum of applications. Elevating your projects to new heights, SIT stands out as the go-to choice for fulfilling all your electrical requirements.

Whether it’s winch packages, frac skids, power packs, or commercial applications, SIT’s capabilities extend far and wide. Our commitment to delivering comprehensive solutions sets us apart, making us a trusted partner for diverse industries.

Our in-house expertise spans:

  • Mechanical
  • Structural
  • Electrical

These disciplines make us a genuine single-source supplier, ensuring a seamless integration of all project components. With SIT, you can count on optimal project execution, driven by our dedicated team.

Experience the power of tailored solutions with SIT. Learn more about our electrical capabilities by watching this short video.

Unveiling Innovative Marine Solutions at the International Workboat Show

The highly anticipated International Workboat Show is just around the corner, and we invite you to join us at booth #821 for an exclusive look at cutting-edge products and solutions from some of our premier partners: Emerson, Wandfluh, JARP, and DMIC. Here’s a glimpse into each partner’s offerings and how they can improve your marine applications.

Emerson: Elevating Marine Control and Monitoring Technologies

Empower your operations with Emerson’s marine control and monitoring technologies designed to enhance uptime, productivity, precision, and safety. Tailored for various units and ship types, including tankers, LNG vessels, cruise ships, and bulk carriers, Emerson’s Marine Tank Management solutions cover Valve Automation, Integrated Control & Monitoring Systems, Tank Level Gauging, Cargo Monitoring Systems, and Custody Transfer Systems.

Wandfluh: Unleashing the Power of Proportional Mobile Valves

Discover the advantages of Wandfluh valves and their transformative impact on your applications. Highlights of Wandfluh’s Proportional Mobile Valve capabilities include:

  • Standard proportional function
  • Sizes NG10 / 16 / 22 / 32
  • Flow rates from 1 to 1000 lpm
  • Pressure capability up to 420 bar
  • Pressure-compensated for reliability
  • Modular structure for versatility
  • Complete manifold assembly for seamless integration

JARP: Custom Cylinder Solutions Redefined

JARP Custom Cylinder Solutions offers tailored cylinders with features such as:

  • Custom cylinders up to 30″ bore
  • Integration of valves, sensors, rod coatings, brakes/locks
  • Dedicated engineering and certified fluid power staff
  • In-house destructive & life-cycle testing
  • 3rd party certifications: ABS/DNV

DMIC: Introducing the Accumulator Safety Valve (ASV)

DMIC unveils its latest innovation – the Accumulator Safety Valve (ASV). This versatile valve is designed to excel in applications with ratings of up to 6,000 PSI and temperature ranges from -60°F to 400°F. Use in applications span a wide range, offering reliability and safety in diverse marine scenarios.

As you prepare for the International Workboat Show, make sure to visit booth #821 to explore these products and solutions firsthand.  Experience innovation that sets the course for enhanced performance, safety, and efficiency in the maritime industry with these latest technologies from Emerson, Wandfluh, JARP, and DMIC.

What is valve actuation?

In marine applications, valve actuation refers to the process of opening and closing various types of valves on ships and other marine vessels to control the flow of fluids (such as water, oil, fuel, or gases) within the vessel’s systems. These valves play a crucial role in ensuring the safe and efficient operation of different systems on a ship, including those related to propulsion, ballast control, cooling, heating, and various other functions.

Valve actuation in marine applications typically involves the use of mechanical, hydraulic, pneumatic, or electrical systems to operate the valves. Here are some common types of valve actuation mechanisms used in the maritime industry:

  1. Manual Valve Actuation: This involves manual operation by a person turning a valve handle, wheel, or lever. Manual valve actuation is often used for smaller and less critical systems on board ships.
  2. Hydraulic Valve Actuation: Hydraulic systems use pressurized fluid to control the movement of valves. Hydraulic valve actuators are suitable for larger and high-pressure applications, such as those found in the ship’s propulsion system or steering system.
  3. Pneumatic Valve Actuation: Pneumatic actuators use compressed air to operate valves. They are commonly employed in less critical marine systems, such as those for cargo handling.
  4. Electric Valve Actuation: Electric actuators use electrical power to control the valve’s position. They are used in a wide range of marine systems, including ventilation, water treatment, and other automated processes.

Valves can serve various purposes on a ship, including regulating the flow of fluids, isolating different sections of the ship’s systems, and providing emergency shut-off in case of a system failure or emergency. Proper valve actuation is critical to maintaining the safety, performance, and efficiency of a vessel’s operations. Valves need to be regularly inspected, maintained, and operated to ensure they function as intended.

SIT partners with Emerson to provide valve actuation for customers in various marine applications. As the exclusive partner for Emerson offshore applications in North America, SIT has the local presence to provide excellent customer support as well as the backing of a globally recognized manufacturer. Contact us to learn more.


What is a steering system?

A crucial, yet often overlooked, component that ensures the safe navigation of a vessel is the steering system. The steering gear is indispensable, whether it’s for a tug boat, supply vessel, cargo ship, state-of-the-art cruise liner or military vessel. Its primary function is to control the direction of the ship.

Reliability is paramount when it comes to considering a steering gear system. At SIT, we understand the importance of a quality product which can be fully compliant with all applicable customer, military, and industry standards including ABS and USCG requirements.

At SIT, we design and build a complete range of steering gear systems, including hydraulic ram with tiller and low-pressure rotary vane.

We can provide a complete system in all respects, inclusive of:

  • Hydraulic Power Unit
  • Steering Gear Actuators
  • Electrical Controls System

In addition to supplied equipment, SIT can be available for the full lifecycle, to provide support from installation/start-up to maintenance, repair, and inspection. Contact us to learn more about our steering system capabilities.

A-Frames: Functions & Applications

An A-frame is a distinctive framework that resembles the shape of the letter “A.” You’ll typically find it mounted on the deck of various types of vessels, from research vessels and offshore platforms to fishing boats and even some military ships. The structure is primarily made of robust steel beams, meticulously designed to withstand the harsh conditions of the open sea.

So, what exactly does an A-frame do?

  1. Lifting and Deployment: One of the primary purposes of an A-frame is to facilitate the lifting and deployment of heavy equipment and objects into the water. This could range from submersibles and remotely operated vehicles (ROVs) used in underwater exploration to large fishing nets and scientific instruments. The A-frame’s design provides a sturdy platform for controlled lowering and raising of these items, ensuring a smooth operation even in rough seas.
  2. Research and Exploration: Research vessels often use A-frames to launch and recover equipment for scientific investigations. Whether it’s collecting samples from the ocean floor or deploying sensors to measure environmental parameters, the A-frame’s robust structure ensures that delicate and valuable instruments can be handled with care.
  3. Subsea Construction: In the offshore industry, A-frames are utilized for subsea construction and maintenance. They enable the precise positioning of heavy structures, such as underwater pipelines, installation of oil rigs, and the assembly of various components required for offshore operations.
  4. Rescue and Recovery: A-frames are crucial in search and rescue operations, allowing swift deployment of lifeboats and rescue vessels. Their efficient design enables quick response times during emergencies, potentially saving lives in critical situations.
  5. Diving Operations: When divers are involved in maritime activities, A-frames can provide a secure platform for divers to enter and exit the water. These structures help in managing diving operations, ensuring the safety and comfort of divers during their missions.

Engineering Ingenuity and Design:

The engineering behind A-frames is a blend of strength, stability, and adaptability. These structures can be designed to withstand dynamic loads, intense vibrations, and the corrosive effects of saltwater. Their versatile design allows for customization based on the specific needs of the vessel and the tasks to be undertaken.

The next time you spot an A-frame on a vessel you’ll have a newfound appreciation for its significance. These seemingly simple structures are a testament to human ingenuity, contributing to safer, more productive, and possibly adventurous journeys across the vast oceans. Contact SIT to learn more about our A-frame capabilities.

SITs Defense Capabilities

SIT has a long history working on defense projects to deliver solutions including but not limited to launch and recovery systems, movable doors, hydraulic power units and ballast control systems. But what function do these provide on military vessels?

Launch and recovery systems: Launch and recovery systems on military ships play a crucial role in the operation of various aircraft and watercraft. These systems enable the efficient deployment and retrieval of aircraft, remote operating vehicles (ROVs), and other specialized equipment. Specific launch and recovery systems vary depending on the type and purpose of the military ship.

Movable doors: Movable doors on military ships serve various functional and strategic purposes. These doors are sometimes referred to as “watertight doors” or “bulkhead doors” and are designed to enhance the safety, protection, and operational capabilities of the ship.

Hydraulic power units – Hydraulic power units (HPUs) play a crucial role on military ships. These units provide hydraulic power, which is the use of pressurized fluid to transmit and control energy, for various functions on board. The effected equipment may vary depending on the type of vessel, its intended mission, and the technology available at the time of construction.

Ballast control systems – Ballast control systems on military ships are used for maintaining stability, buoyancy, and maneuverability of the vessel. These systems ensure that the ship’s center of gravity remains within safe limits during various operational conditions, such as loading and unloading cargo, changing sea conditions, and operating various onboard systems. Overall, the ballast control system ensures the vessel can operate effectively and safely in various conditions while performing its mission tasks.

Contact us – info@sitech-us.com to learn more about our defense capabilities.

Engineering at SIT

Did you know that SIT personnel have over 50 years of engineering & design experience? SIT’s expertise helps transform ideas into success for hydraulic or electric powered moveable structures. Using innovative methodologies, SIT gives its customers a single source solution for marine, civil, industrial & defense applications. With specialists in structural and mechanical design, as well as fluid power, electrical and automated systems, SIT uses state of the art tools to provide:

  • 3D modeling
  • FEA analysis
  • Stress & shock analysis
  • Computational fluid dynamics
  • Enterprise data management

By bringing an initial brainstorm and turning it into a complete turnkey system, SIT has the ability to transform your ideas into a reality. Check out some of our recent projects.

This video takes you inside what it’s like to be an engineer at SIT. Watch now.

What is an HPU?

A hydraulic power unit (HPU) is a mechanical system that generates power through the use of fluids, typically hydraulic fluid. It is often used to provide the power required to operate hydraulic machinery and equipment, such as hydraulic cylinders, motors, and valves.

An HPU consists of a hydraulic pump, a motor or engine, a reservoir for holding hydraulic fluid, filters to remove contaminants from the fluid, and control valves to regulate the flow of fluid to the hydraulic system. The pump is responsible for creating the pressure required to move the hydraulic fluid through the system and power the hydraulic components.

Hydraulic power units are commonly used in industrial, construction, and manufacturing settings to power equipment such as presses, cranes, lifts, and excavators. They are also used in mobile applications, such as hydraulic systems for trucks and other vehicles.

Overall, hydraulic power units are essential for providing reliable and efficient power to hydraulic systems, allowing them to perform a wide range of tasks with precision and control.

SIT provides the hydraulic calculation package, classification society approvals, operation manuals, integration testing, on-site commissioning and post-delivery service. Each system is turnkey design, manufactured, and certified by SIT. All HPU’s are applicable for many vessels and customizable for any application.

Contact SIT today to learn more about how we can help with your next project.