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# Valves within Hydraulic Systems
 » Valves within Hydraulic Systems
# Valves
## We stock the best.
## Our Experience with Valves
Valves are an integral part of any  system and although Apex do not manufacture valves, we do stock quality, brand name valves from manufactures such as Integrated Hydraulics, Parker, Vickers, Eaton, Hauhinco, Commercial Hydraulics, Bosch Rexroth and many others.
For more information on the selection available go to our brand manufactures page.
Our Products Include:
| * Modular Valves * Cartridge Valves * Directional Valves * Proportional Valves * Solenoid Valves * CETOP Valves | * Relief Valves * Flow Regulators * Check Valves * Flow Dividers * Sequence Valves * Stainless Steel Valves |
| --- | --- |
Hydraulic screw-in cartridge valves offer benefits as well as savings.
## Frequently Asked Questions
 Why should we purchase our hydraulic valves from Apex?
Apex has decades of experience at choosing valves for bespoke hydraulic cylinders – so we know what materials, makes, models and coatings will be suitable depending on the environment and application of your cylinders.
 Does Apex manufacture hydraulic valves?
At Apex we do not manufacture our own hydraulic valves, but we choose from a wide selection of manufacturers; meaning that we can pick and choose the best for our bespoke cylinders, rather than being tied to one make. We may even use multiple manufacturers within one system, to ensure that each valve is optimum for each use.
 What is screw in cartridge valve technology?
Screw in technology allows for quick, seamless repair and replacement in the event of any faults. It consists of one manifold block with a number of screw in cartridges, each valve having its own function. This allows for complex hydraulic systems to be contained within one neat self-contained block.
 Which valve do we need to use for our application?
Apex is extremely experienced at choosing valves according to the application – contact us today for advice.
 How many different types of valves are there?
There are three main categories of valves within hydraulic systems, each designed to perform a specific task. *Flow control valves* open gradually, to limit the amount of oil that comes through at a time. *Directional control valves* control the direction of the flow of hydraulic fluid, as well as the starting and stopping of the flow. *Pressure control valves* are set to open and close at certain pressures.
Within these three categories, there are a huge number of types of valves. Proportional valves open gradually, to limit the amount of oil that comes through at a time, while standard valves are just either open or closed. Over-centre valves control the decent of the extension of the cylinder rod as it passes the central pivot point, stopping the rod from suddenly extending extremely quickly when it passes the tipping point.
Within all the different valve types are large numbers of materials and designs, offering an almost unlimited choice. Apex have years of experience of choosing the right valve for each part of your bespoke hydraulic system.
 Why are some valves located on the hydraulic cylinder itself?
While valves are often placed with the power unit or control panel, they can also be mounted directly onto the cylinder. This can be a safety feature, removing the risk of the cylinder failing in the event of a hose burst. Putting the valves closer to the location they are serving can be a useful design feature under certain circumstances due to this minimisation of the risk of failure.
 What material are valves made of?
There is a huge range of different materials and coatings. Typically valves can be just any carbon steel. However, there are also many situations where stainless steel may be required, such as in corrosive environments or when water based fluids are being used for environmental reasons, or to avoid risks of combustion, such as in forges or mines. Sometimes valves will also have special coatings, for additional lubrication or corrosion resistance.
 Can you repair hydraulic valves?
Yes, we can repair or find a suitable replacement for a wide range of valves, including obsolete or unknown valves.
Screw-in cartridge valve technology enables us to concentration of any number of hydraulic control functions into a single block, whether it is a single valve dictating the descent of a cylinder or an elaborate manifold (Hydraulic Integrated Circuit) controlling all the operations of a machine, benefiting the machine builder with improvements in performance and reduction in costs.
By exploiting cartridge valve technology systems will require fewer pipe work connections eliminating potential leak paths and so the possible environmental impact of a machine and reducing the systems pressure losses. In , productivity improvements and cost savings can be achieved as maintenance and fault diagnosis can be considerably eased and if a cartridge does need to be replaced it can be done simply and quickly.
We can design and manufacture any size block to perform as many different functions as the user requires. Use our contact page to find out more.
### Gallery
Please find related images below…
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Read more about our experience with valves within the case studies below
* !
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#### Related Sector Experience for valves
Read more about our sector experience associated with valves
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## Latest News
Read more about our latest news below
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Valves within Hydraulic Systems2015-11-242018-02-15 Hydraulics    Copyright All Rights Reserved © 2016                     Website by 
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  Offshore Hydraulic Cylinders / Rams for the Marine IndustrySubsea Hydraulic Cylinders
# Launch and Recovery System (LARS) Hydraulic Repairs and Manufacture
 » Launch and Recovery System (LARS) Hydraulic Repairs and Manufacture
# Launch and Recovery System (LARS)
## Hydraulic Repairs and Manufacture
Launch And Recovery Systems (LARS) are used to deploy and retrieve equipment or small vessels into the ocean from the side of larger vessels such as ships.
 Several different types of hydraulic cylinder are used in LARS fabrications.
* + Tilt Cylinders are used to pivot the frame of the LARS over the ocean to launch a vessel and back over the ship for recovery.
  + Boom Cylinders are used to advance the frame away from the side of the vessel, pushing the equipment out from the side of the ship.
     Latch Cylinders can lock equipment in place to steady it and prevent accident or premature release.
  + Motion compensating cylinders are used to counteract the rolling movement of the vessel caused by the ocean waves. This ensures that the equipment being launched remains as steady as possible throughout the process.
These cylinders are all extremely complex and have to be very precise, as well as robust enough to survive offshore environments and heavy work. Most LARS systems are rented pieces of equipment, and as such they often see overuse, sometimes being used for equipment that is heavier than the intended loads. For several years Apex have been working with manufacturers of Launch And Recovery Systems (LARS) to maintain and repair the LARS hydraulic cylinders when brought in for intermittent maintenance.
The cylinders go through the strip and assessment process, with skilled engineers assessing the damage and replacing materials like for like; or where relevant, suggesting upgrades to equipment. New parts are fabricated in the machine shop and parts are assembled in the fitting ship. As well as repair, Apex are also able to manufacture brand new LARS cylinders.
* Apex are the ideal partner for LARS equipment manufacture and maintenance
   Highly experienced engineers can create bespoke designs or assist in design improvements
* The state-of-the-art Dewsbury workshop sends top spec hydraulic cylinders throughout the world
* Decades of working with the offshore industry has given Apex unparalleled experience of building robust hydraulic cylinders, capable of surviving tough environments
* Apex is the world’s only provider of the unique new rod coating, , which benefits from almost twice the hardness of Hard Chrome Plating.
* Apex is happy to facilitate any third-party inspections that are required, as well as conducting thorough inspections to any required testing in our dedicated in-house inspection department.
* Apex are familiar and experienced with all compulsory offshore design stipulations and facilitate any technical requirements, such as DNV-GL, Lloyds Register, ABS as well as NORSOK M 501 paint requirements.
For more information, contact Apex today on 01924 456788.
LARS Hydraulic Cylinder Repair   ! Norsok Paint Offshore Hydraulic Cylinder   ! LARS Cylinder Before Repair   ! Repaired LARS Cylinders   ! Repaired LARS Cylinders   ! Repaired LARS Cylinders   ! Offshore Hydraulic Cylinder with Norsok Paint   !
### Related Case Studies for Launch and Recovery Systems:
Read more about our experience with Launch and Recovery System Repairs within the case studies below
  ### Apex at Forefront of Launch and Recovery Cylinder Repairs
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  Valve Repair
# Valve Repair
 » Valve Repair
##
#### Valve Repair
As one of the UK’s leading valve repair experts, we pride ourselves on providing you with a speedy, efficient, unrivalled quality of service – every step of the way.
#### Apex Hydraulics FREE Strip and Quote Service
Apex Hydraulics offers you our FREE ‘Strip and Quote Service’ which includes:
* a complete strip down of your valve;
* a comprehensive assessment and full diagnosis;
* a speedy assessment  to reduce critical downtime
* sourcing of all spares required to complete the repair;
* providing you with a fully itemised quotation before any work commences.
Our extensive experience working with all the major manufacturers means we have an unmatched knowledge of the majority of valves.  And, allows us to have immediate access to spare parts should they be needed.
> Our extensive experience working with all the major manufacturers means we have an unmatched knowledge of the majority of valves.
Our expert in-house technical team is always on hand to provide you with professional support. So should you need to discuss your concerns, please call us on +44(0)1924 456788 and we’ll do our very best to help you.
And finally, don’t worry if you have an obsolete valve, our in-house machine facility will take care of it.
Here is a selection of the types of  we repair:
| * Directional control * Pressure control * Flow control * Relief * Prefill * Throttle * Decompression | * Solenoid * Proportional * Load Control * Sectional * Mono Block * Spool |
#### We are yet to find a valve we cannot fix!
Here is a selection of just some of the manufacturers we have worked with over the last 30 years:-
| *  *  *  *  *  * Atos * Aaron * Moog | *  *  * Hawe * Sauer Danfoss * Sterling Hydraulics * Yuken * Sun Hydraulics |
#### Frequently Asked Questions
 Why should we have our hydraulic valves repaired with Apex Hydraulics?
Apex have decades of experience of repairing all parts of hydraulic cylinders, including valves. We work across a huge number of different industries and applications so are well versed with requirements for different systems, including corrosive environments, hydraulic systems with high cycle rates and systems working under extremely high and low pressures. We have a state of the art workshop in Dewsbury, where we employ design engineers and expert technicians with a vast experience of working with valve repairs – including obsolete valves.
 Can you repair our obsolete hydraulic valve?
Yes, we have experience of repairing valves that are obsolete and no longer manufactured. Where parts are no longer available, we can engineer news part ourselves, in our Dewsbury workshop. In cases where repair is not financially viable, we work with a large range of different manufacturers, so are always able to find a new valve to replace a damaged one when necessary.
 Can you make valves more robust?
While our hydraulic valve repairs do often have the effect of making them more durable, trying to improve on a working hydraulic valve to make it more robust is not economically viable for our clients. It is far more financially efficient for us to find an alternative valve that is more durable.
 Can you repair valves on site?
In most cases we will need the valve at our workshop in Dewsbury, where it can be assessed by our strip and assessment team and a good repair can be designed and carried out with our state of the art machinery.
 What different materials and coatings are used in hydraulic valve repairs?
We match the materials used in the original valves, only changing where we can make them more durable using a different material. Valves are usually made of carbon steel, but sometimes stainless steel is used, particularly if the valve is subject to a corrosive environment. We also apply special coatings where required.
 How do you test the repaired valve?
We have a department dedicated to inspecting and testing our hydraulic systems. All repaired or manufactured parts are tested stringently, ensuring there are no imperfections. We can test to any pressure required by our clients and are also happy for third party verification or clients to view the testing.
 Can you provide Certificates of Conformity?
Yes, we can perform testing on your valve under any pressure required by you, in order to produce a Certificate of Conformity.
 How quickly can you repair our hydraulic valve?
We understand the time constraints on our clients, so where possible, we try to repair parts within 5 working days. With good relationships with all our suppliers, we are usually able to source new parts within 24 hours and our machine shop is able to quickly engineer new parts where required.
#### Proud of our Quality Status
Our ISO 9001:2015 certification means we can focus on providing our customers with unbeatable technical expertise.
#### Certification available with each task completed
> Full ‘test and certificates of conformity’ are available should you need them.
Full ‘test and certificates of conformity’ are available should you need them.
Some valves we see are now obsolete and therefore it can be difficult to purchase spares. However, with our qualified design team and machine workshop, we can engineer the parts required for your job.
#### Gallery
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#### Related Case Studies for Valves
#### Latest News
Valve Repair2015-11-282021-01-21 Hydraulics    Copyright All Rights Reserved © 2016                     Website by 
  Power Pack RepairLaunch and Recovery System (LARS) Hydraulic Repairs and Manufacture