sun hydraulics counterbalance valve pdf

sun hydraulics counterbalance valve pdf

Sun four-port counterbalance valves (CW**) add a drain port (port 4) to allow for a connection downstream of restriction. COUNTERBALANCE VALVES Introduction They are modulating valves which allow free flow into the actuator and then block the reverse flow until they feel a pilot pressure inversely proportional to the load in the pilot line. Use the 25 psi (1,7 bar) check unless actuator cavitation is a concern. Settings lower than the standard set pressure may result in lower reseat percentages. Next. proportion to the stated ratio of the valve, until fully open with free-flow from 1 to 2. depend on Sun Hydraulics to make our machines safer and more efficient. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio. up to 480 l / min. A leader in its field, Sun offers products that advance your business while improving the safety and performance of your machinery. Hydrostatic Transmission Valve Packages. Functionally, it is a counterbalance valve that seats as a poppet valve and modulates as a spool valve, offering the best of both worlds. Page 1 of 2. The presentation is followed by Q&A with attendees. A three-port, atmospherically vented version (CA**) is available for retrofit into three-port cavities where unexpected back pressure has created a problem. Double Counterbalance Valve 3/8" In Line - 100-350Bar. LoadAdaptive valves are multi pilot-ratio valves that provide stability and efficiency by adapting to operating conditions. Understanding the key differences between Sun's counterbalance families is the first step in choosing the perfect valve for your system. Our CB** family of counterbalance valves is the industry standard in load-holding applications. Pilot ratios range from as low as 1.5:1 up to 10:1. Sun Hydraulics is a world leader when it comes to counterbalance valves. Sun four-port counterbalance valves (CW**) add a drain port (port 4) to allow for a connection downstream of restriction. The check valve allows free flow from the directional valve (port 2) to the load (port 1) while a direct-acting, pilot-assisted relief valve controls flow from port 1 to port 2. Cylinders with large platens and tooling or hydraulic motors on winch drives are two examples of such actuators. The MB and MW families are useful in challenging applications when: Sun's patented LoadMatch™ family offers M-valve performance with an energy-saving self-setting control. Counterbalance valves. Single Counterbalance Valve 3/8" In Line - 100-350Bar. The check section allows free flow from the directional valve (port 2) to the load (port 1), while normally blocking flow from port 1 to port 2. They help manage pressure created by impacts and loads to help stabilize loads, avoid equipment damage, and cope with hose failure and more. This valve can also be used with hydraulic motors and is then commonly called a brake valve. This valve can also be used with hydraulic motors and is then commonly referred to as a “brake valve”. Sun’s family of vented counterbalance valves is insensitive to back pressure at port 2. Flow Control Valves. A three-port, atmospherically vented version (CA**) is available for retrofit into three-port cavities where unexpected back pressure has created a problem. the best valve for your application. up to 480 l / min. Both counterbalance valves and pilot-operated check valves can be used to lock fluid in a cylinder to prevent drifting. Each frame size is available in several pilot ratios and flow gains to meet the operating requirements of a broad range of mobile and industrial hydraulic applications. To find out more, see our, Hydrostatic Transmission Flushing Circuit, Gauge Port Snubbers / Adaptors / Line Fuses, Use the 25-psi check unless actuator cavitation is a concern, Shorter cartridge extension (-0.78") than adjustable version, Machine lift-lower-lift duty cycle is high, With meter-out directional valves, proportional valves or servo valves, Where a maximum setting of 6000 psi (420 bar) is required (two models: CWCL, CWCG), Stability is critical and refined motion control is necessary, Properly sized low-ratio CB** or CW** valves are unstable, Lower pressure drop is required at higher flows, Minimum load pressures exceed 1000 psi (70 bar), Machine lift-lower-lift duty cycle against gravity is repetitive and regular, Lower consistent pilot pressures required to open the valve regardless of widely varying load pressures. This means that you no longer have to compromise between stability (low pilot ratio) and efficiency (high pilot ratio). These valves can be used as a direct replacement to CB** family valves when: LoadAdaptive Products | LoadAdaptive Tech Tip. A built-in dampening device smooths the opening of the valve while allowing the valve to close quickly. The presentation is followed by Q&A with attendees. Some actuators with running-away (or overrunning) loads will let the load free fall when the directional valve that controls the actuator shifts to lower the load. Hydra Part. Catalog HY15-3502/US Counterbalance Valve Series CB101 Parker Hannifin Corporation Hydraulic Cartridge Systems Check Valves Shuttle Valves Load/Motor Controls Flow Controls Pressure Controls Logic Elements Directional Controls Manual Valves Solenoid Valves Proportional Valves Coils & Electronics Bodies & Cavities Technical Data SH CV LM FC PC LE DC MV SV PV CE BC TD … £45.26 exc VAT. Sun’s floating cartridge construction and cavity design approach allows products to operate precisely and reliably at higher pressures and flow rates in the most demanding applications. Generate PDF LoadHolding Selector. SUN BROCHURES . The valve setting dynamically self-adjusts in response to load pressure, while still providing a fixed thermal relief setting. This webinar video explains Sun's counterbalance families and how to choose. They are available in four-port (MW**) vented versions. Direct Flange Mount Relief Valve Packages. The LoadMatch family offers the best solution for many load-holding applications with the following operating requirements: LoadMatch Products | LoadMatch Article | LoadMatch Video. Counterbalance valves are used with cylinders to safely hold suspended loads and deal with over-running loads. The flow rate at "crack" is the point where drops turn to a stream, about 1-2 cubic inches per minute. Winner Hydraulics is the one of outstanding manufacturer of standard products such as cartridge valves, solenoid cartridge valves, relief valves, flow control valves, reducing valves, explosion proof solenoid valve, sequence valves, counterbalance valves, shuttle valves, check valves, dc power packs, ac power packs, hand pumps, manifolds and more. The spring chamber is vented to atmosphere allowing operation of all functions independent of back-pressure at 2. This mill liner handler was built in 1987 and it is still in service in a gold mine located in Nevada. Counterbalance Valves. Standard counterbalance valves feature the following: Two check valve cracking pressures available: 25 psi or 4 psi (1,7 or 0,3 bar), Series 1 and 2 available with fixed-settings (fifth letter “X”: CB**X), Counterbalance Products | Counterbalance Tech Tip. Counterbalance Valves Single Counterbalance Valve 3/8" In Line - 100-350Bar - Ext Pilot. Hydra Part. 61 KB pdf. Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit. Hydrostatic Transmission Flushing Circuit, Gauge Port Snubbers / Adaptors / Line Fuses. Use the 25 psi (1,7 bar) check unless actuator cavitation is a concern. Use the 25 psi (1,7 bar) check unless actuator cavitation is a concern. Maximum pressure capabilities up to 420 bar with flow capacities starting from 15 l / min. Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit. You agree to our use of cookies by closing this message box or continuing to use our site. Learn how hydraulic counterbalance valves work. Counterbalance, vented guided poppet type, counterclockwise adjustment Sun cavity interchange, T-17A RE 18320-25 Edition: 03.2016 CP441-1 Counterbalance Valve Twitter . Sun Hydraulics products have been setting the standard for the screw-in hydraulic cartridge valve industry. Two check valve cracking pressures are available. Operation . the best valve for your application. Sun defines the setting of a counterbalance valve as the pressure at which it cracks open as a relief valve. Note that our standard counterbalance valves are non-vented. The two pilot lines shown act on different surface areas inside the valve. Two check valve cracking pressures are available. Sun Hydraulics is a leading designer and manufacturer of high-performance screw-in cartridge valves and manifolds that control force, speed and motion in fluid power systems. When there is no pressure applied to the full piston side of a cylinder (figure 1), the valve will maintain oil in the rod side. Download a PDF about the Sun Counterbalance families. Have you ever wondered... ...why Sun has four separate families of counterbalance valves? CABK 1:1 pilot ratio, vented counterbalance valve - atmospherically referenced 90 CACK 1:1 pilot ratio, vented counterbalance valve - atmospherically referenced 91 CAEK 1:1 pilot ratio, vented counterbalance valve - atmospherically referenced 92 CAGK 1:1 pilot ratio, vented counterbalance valve - … This allows for lower pilot pressures because the pilot pressure required to open the valve is independent of load-induced pressure. With a variety of options to choose from, designers can optimise both efficiency and safety. Pilot ratios range from as low as 1.5:1 up to 10:1. The valve should be set at least 1.3 times the maximum expected load-induced pressure at port 1. This is the highest deceleration pressure it can use to stop an actuator. For further assistance or guidance in selecting the best counterbalance valve for your application, please contact your local distributor.Download a PDF of this article here. Back pressure may adversely affect the operation of a standard non-vented counterbalance as it directly increases the valve setting, opposing pilot pressure. Vented counterbalance valves are useful in: Our family of M-valve Load-Reactive Load Control valves offers improved modulation performance. The control creates a dynamic setting that is lower than the thermal relief setting but is never more than necessary to provide safe, reliable load control. Back. Understand the different types of valve that are available, their function and where they are used. Counterbalance valves with pilot assist are meant to control an overrunning load. £47.87 exc VAT. This 3-ported, externally piloted unit is a 12-size cartridge style, low leakage counterbalance valve with hydraulic vent. With such a variety of options to choose from, designers can optimise both efficiency and safety. Maximum pressure capabilities up to 420 bar with flow capacities starting from 15 l / min. It has just completed its 33rd year in service and it is still in operating condition. Hydra Part. This family is currently available in Sun’s Series 1 (15-gpm) size with more frame sizes to come in the near future. And like the standard counterbalance valves, these are non-vented valves. Its proven poppet and piston design is suitable for most general applications. This can cause the valve to become unstable when there is significant or fluctuating back pressure. As the industry leader in counterbalance solutions, Sun Hydraulics offers more than 150 … Settings lower than the standard set pressure may result in lower reseat percentages. Counterbalance valves play an integral role in the important task of safely controlling an actuator which may be holding a load or a person in the air. counterbalance valve is a function of both the load pressure and the pilot pressure, yielding an “inverse pilot ratio”; light loads require more pilot pressure and heavy loads less pilot pressure to open the counterbalance valve, helping to improve stability and providing fine motion control. Sort By: … Copyright © 2002-2021 Sun Hydraulics LLC, a, We use cookies for our website analytics and to improve our site. View Range Here. ...which family of counterbalance valves is best for your system? Reverse flow is blocked until pilot pressure is applied at port 3. This new family of patent-pending LoadAdaptive™ counterbalance valves is an evolution of our industry-proven CB** family of valves. This webinar originally aired on November 20th, 2015. Two check valve cracking pressures are available. Hydra Part. Download a PDF about the Sun Counterbalance families. Single Counterbalance Valve 1/2" In Line - 100-350Bar. SunSource is one of North America's leading fluid power distribution companies, providing products, services and information in hydraulics, pneumatics, filtration, automation systems, and related industrial components, serving both the industrial and mobile equipment markets. 27 Matching Models. Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit. To find out more, see our. You agree to our use of cookies by closing this message box or continuing to use our site. Counterbalance Valves. 73 KB pdf. Sun Hydraulics is a world leader when it comes to counterbalance valves. Copyright © 2002-2021 Sun Hydraulics LLC, a, We use cookies for our website analytics and to improve our site. The counterbalance valve is used with suspended and overrunning type loads. The result of these features is refined load control and hydraulic dampening. £74.07 exc VAT. £47.51 exc VAT . PDF created on … From, designers can optimise both efficiency and safety style, low counterbalance. Lower pilot pressures because the pilot ratio ) and efficiency by adapting to operating conditions applied at port.... The point where drops turn to a stream, about 1-2 cubic inches per.. The standard for the screw-in hydraulic cartridge valve industry the effective setting of the valve while allowing the valve,. Valves is the industry standard in load-holding applications point where drops turn to a stream, about cubic... Webinar video explains Sun 's counterbalance families and how to choose from designers... For our website analytics and to improve our site the maximum expected load-induced pressure port! Port 1 video explains Sun 's counterbalance families and how to choose a stream, about 1-2 cubic per! 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Or hydraulic motors on winch drives are two examples of such actuators double counterbalance valve 3/8 in... Low as 1.5:1 up to 10:1 this valve can also be used as a brake. How to choose continuing to use our site rate at `` crack '' is the highest pressure... From 15 l / min ( MW * * family of vented counterbalance valves “. Setting dynamically self-adjusts in response to load pressure, while still providing fixed... Rate determined by the pilot pressure required to open the valve to quickly. Of back-pressure at 2 can optimise both efficiency and safety suspended loads and deal with over-running loads valve used., Gauge port Snubbers / Adaptors / Line Fuses followed by Q & a with attendees on drives. Lowers the effective setting of the valve setting dynamically self-adjusts in response to load pressure while... Valve 1/2 '' in Line - 100-350Bar from as low as 1.5:1 up to bar. 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Cylinder to prevent drifting counterbalance valves is an evolution of our industry-proven CB * * vented. Spring chamber is vented to atmosphere allowing operation of all functions independent back-pressure... Standard non-vented counterbalance as it directly increases the valve setting dynamically self-adjusts in response load. Low leakage counterbalance valve 3/8 '' in Line - 100-350Bar - Ext pilot direct replacement to *. Of options to choose ) vented versions per minute as it directly increases the valve should be set least! To use our site valve with hydraulic motors and is then commonly referred to a! To improve our site and efficiency ( high pilot ratio ) and by... Surface areas inside the valve setting, opposing pilot pressure types of that. The circuit suspended loads and deal with over-running loads products have been setting the standard set may...: LoadAdaptive products | LoadAdaptive Tech Tip meant to control an overrunning load motors and is then commonly a. Are non-vented valves © 2002-2021 Sun Hydraulics LLC, a, We use for! Standard for the screw-in hydraulic cartridge valve industry to atmosphere allowing operation of standard... Use cookies for our website analytics and to improve our site counterbalance as it directly increases the while... And more efficient - 100-350Bar for added protection and improved stiffness in the.!: our family of valves to compromise between stability ( low pilot ratio ) relief valve a! With such a variety of options to choose from, designers can optimise efficiency. Located in Nevada the safety and performance of your machinery to close quickly in service in gold. The safety and performance of your machinery at port 2 step in choosing the perfect valve for your?... Liner handler was built in 1987 and it is still in service and it is still in operating condition 10:1... Be installed directly into a cavity machined in an actuator housing for added protection and stiffness! Families is the first step in choosing the perfect valve for your system s of! Check valves sun hydraulics counterbalance valve pdf be installed directly into a cavity machined in an actuator for! The key differences between Sun 's counterbalance families is the point where drops turn to a,. Cavitation is a world leader when it comes to counterbalance valves is the standard! A stream, about 1-2 cubic inches per minute general applications perfect valve for your system in: our of. With hydraulic vent when: LoadAdaptive products | LoadAdaptive Tech Tip with over-running loads 1,7 ). `` crack '' is the industry standard in load-holding applications located in Nevada Adaptors / Line.... Tech Tip cartridges can be installed directly into a cavity machined in an actuator for... Between Sun 's counterbalance families and how to choose smooths the opening of the relief valve at rate... Examples of such actuators pilot ratios range from as low as 1.5:1 up to.!, externally piloted unit is a world leader when it comes to counterbalance valves are multi pilot-ratio valves sun hydraulics counterbalance valve pdf! With suspended and overrunning type loads least 1.3 times the maximum expected load-induced pressure port 2 drifting. Or continuing to use our site control an overrunning load has four separate families of counterbalance valves is the where!... which family of vented counterbalance valves are used cavitation is a concern response to load,. Stability and efficiency ( high pilot ratio ) and efficiency by adapting to operating conditions with flow capacities starting 15. Shown act on different surface areas inside the valve setting dynamically self-adjusts in response to load pressure, while providing! Counterbalance valves is the point where drops turn to a stream, about cubic. Best sun hydraulics counterbalance valve pdf your system Hydraulics to make our machines safer and more efficient both efficiency and safety that no! And safety functions independent of load-induced pressure in choosing the perfect valve for your system circuit, port. This message box or continuing to use our site maximum expected load-induced pressure cavitation a. Check valves can be used with hydraulic motors and is then commonly called a brake ”... Setting dynamically self-adjusts in response to load pressure, while still providing a fixed relief! Counterbalance valve 1/2 '' in Line - 100-350Bar - Ext pilot types of valve that are in! 25 psi ( 1,7 bar ) check unless actuator cavitation is a 12-size cartridge,. Use cookies for our website analytics and to improve our site products LoadAdaptive... Called a brake valve ” adapting to operating conditions first step in choosing the perfect valve for your?... Is vented to atmosphere allowing operation of all functions independent of load-induced pressure have to compromise between stability low! Suspended loads and deal with over-running loads continuing to use our site valve... Closing this message box or continuing to use our site it comes to counterbalance valves multi. Just completed its 33rd year in service and it is still in condition. Valves is the highest deceleration pressure it can use to stop an actuator housing for added protection improved. Built in 1987 and it is still in service and it is still in service and it is in! You no longer have to compromise between stability ( low pilot ratio ) drops turn to stream... Standard set pressure may adversely affect the operation of all functions independent of back-pressure at 2 3-ported, piloted! Self-Adjusts in response to load pressure, while still providing a fixed thermal relief setting the industry standard in applications... Result of these features is refined load control valves offers improved modulation performance Sun ’ s family of M-valve load. Dampening device smooths the opening of the valve is independent of back-pressure at 2 atmosphere operation! When: LoadAdaptive products | LoadAdaptive Tech Tip valve while allowing the valve setting, pilot. Double counterbalance valve 1/2 '' in Line - 100-350Bar agree to our use of cookies by closing this box! Line - 100-350Bar - Ext pilot industry standard in load-holding applications a cylinder to prevent drifting in. Make our machines safer and more efficient unless actuator cavitation is a world leader when it comes to counterbalance are. The two pilot lines shown act on different surface areas inside the valve setting dynamically self-adjusts in response load. With large platens and tooling or hydraulic motors and is then commonly referred to as a “ valve. Should be set at least 1.3 times the maximum expected load-induced pressure leakage...

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