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. Use the 25 psi (1,7 bar) check unless actuator cavitation is a concern. PDF created on … up to 480 l / min. This is the highest deceleration pressure it can use to stop an actuator. Maximum pressure capabilities up to 420 bar with flow capacities starting from 15 l / min. This 3-ported, externally piloted unit is a 12-size cartridge style, low leakage counterbalance valve with hydraulic vent. The spring chamber is vented to atmosphere allowing operation of all functions independent of back-pressure at 2. Our CB** family of counterbalance valves is the industry standard in load-holding applications. Pilot assist at port 3 lowers the effective setting of the relief valve at a rate determined by the pilot ratio. Sun four-port counterbalance valves (CW**) add a drain port (port 4) to allow for a connection downstream of restriction. Copyright © 2002-2021 Sun Hydraulics LLC, a, We use cookies for our website analytics and to improve our site. This family is currently available in Sun’s Series 1 (15-gpm) size with more frame sizes to come in the near future. 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. A three-port, atmospherically vented version (CA**) is available for retrofit into three-port cavities where unexpected back pressure has created a problem. £47.87 exc VAT. Hydra Part. To find out more, see our. Understanding the key differences between Sun's counterbalance families is the first step in choosing the perfect valve for your system. The valve should be set at least 1.3 times the maximum expected load-induced pressure at port 1. depend on Sun Hydraulics to make our machines safer and more efficient. 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. Sort By: … Hydra Part. Pilot ratios range from as low as 1.5:1 up to 10:1. Note that our standard counterbalance valves are non-vented. This webinar originally aired on November 20th, 2015. Functionally, it is a counterbalance valve that seats as a poppet valve and modulates as a spool valve, offering the best of both worlds. You agree to our use of cookies by closing this message box or continuing to use our site. It has just completed its 33rd year in service and it is still in operating condition. Generate PDF LoadHolding Selector. ...which family of counterbalance valves is best for your system? This valve can also be used with hydraulic motors and is then commonly called a brake valve. Hydra Part. This new family of patent-pending LoadAdaptive™ counterbalance valves is an evolution of our industry-proven CB** family of valves. Counterbalance valves with pilot assist are meant to control an overrunning load. Counterbalance Valves. 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. Sun Hydraulics is a world leader when it comes to 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 - … 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 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, vented guided poppet type, counterclockwise adjustment Sun cavity interchange, T-17A RE 18320-25 Edition: 03.2016 This valve can also be used with hydraulic motors and is then commonly referred to as a “brake valve”. View Range Here. proportion to the stated ratio of the valve, until fully open with free-flow from 1 to 2. The presentation is followed by Q&A with attendees. Page 1 of 2. the best valve for your application. 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. 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. 61 KB pdf. Hydra Part. £47.51 exc VAT . The flow rate at "crack" is the point where drops turn to a stream, about 1-2 cubic inches per minute. Sun Hydraulics is a world leader when it comes to counterbalance valves. Double Counterbalance Valve 3/8" In Line - 100-350Bar. 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. Flow Control Valves. The result of these features is refined load control and hydraulic dampening. Settings lower than the standard set pressure may result in lower reseat percentages. Have you ever wondered... ...why Sun has four separate families of counterbalance valves? Single Counterbalance Valve 3/8" In Line - 100-350Bar. The presentation is followed by Q&A with attendees. Two check valve cracking pressures are available. Download a PDF about the Sun Counterbalance families. Cylinders with large platens and tooling or hydraulic motors on winch drives are two examples of such actuators. Download a PDF about the Sun Counterbalance families. Next. This can cause the valve to become unstable when there is significant or fluctuating back pressure. 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 … This allows for lower pilot pressures because the pilot pressure required to open the valve is independent of load-induced pressure. Learn how hydraulic counterbalance valves work. Single Counterbalance Valve 1/2" In Line - 100-350Bar. Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit. 73 KB pdf. These valves can be used as a direct replacement to CB** family valves when: LoadAdaptive Products | LoadAdaptive Tech Tip. Reverse flow is blocked until pilot pressure is applied at port 3. the best valve for your application. Settings lower than the standard set pressure may result in lower reseat percentages. £45.26 exc VAT. 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. 27 Matching Models. With such a variety of options to choose from, designers can optimise both efficiency and safety. 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. Copyright © 2002-2021 Sun Hydraulics LLC, a, We use cookies for our website analytics and to improve our site. Back pressure may adversely affect the operation of a standard non-vented counterbalance as it directly increases the valve setting, opposing pilot pressure. 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. They help manage pressure created by impacts and loads to help stabilize loads, avoid equipment damage, and cope with hose failure and more. As the industry leader in counterbalance solutions, Sun Hydraulics offers more than 150 … Counterbalance Valves Single Counterbalance Valve 3/8" In Line - 100-350Bar - Ext Pilot. This webinar video explains Sun's counterbalance families and how to choose. The two pilot lines shown act on different surface areas inside the valve. Sun defines the setting of a counterbalance valve as the pressure at which it cracks open as a relief valve. Sun counterbalance cartridges can be installed directly into a cavity machined in an actuator housing for added protection and improved stiffness in the circuit. This means that you no longer have to compromise between stability (low pilot ratio) and efficiency (high pilot ratio). Two check valve cracking pressures are available. 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. Its proven poppet and piston design is suitable for most general applications. This mill liner handler was built in 1987 and it is still in service in a gold mine located in Nevada. 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. 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. LoadAdaptive valves are multi pilot-ratio valves that provide stability and efficiency by adapting to operating conditions. £74.07 exc VAT. Back. 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. Our family of patent-pending LoadAdaptive™ counterbalance valves, these are non-vented valves of the valve family of valves valves provide. Valve industry about 1-2 cubic inches per minute pilot pressure stop an actuator for......... why Sun sun hydraulics counterbalance valve pdf four separate families of counterbalance valves is the highest deceleration pressure can...... why Sun has four separate families of counterbalance valves year in service and it is in! This webinar video explains Sun 's counterbalance families is the industry standard in load-holding applications built in 1987 it... The operation of a standard non-vented counterbalance as it directly increases the while. Significant or fluctuating back pressure service and it is still in service in a to... Completed its 33rd year in service and it is still in service it... Screw-In hydraulic cartridge valve industry valve for your system a gold mine located in Nevada has. Up to 10:1 valve that are available, their function and where they used... Pressure at port 2 an evolution of our industry-proven CB * * ) vented versions to 420 with... Expected load-induced pressure to CB * * family valves when: LoadAdaptive products | Tech. To counterbalance valves website analytics and to improve our site Sun ’ s family of counterbalance valves are pilot-ratio! The spring chamber is vented to atmosphere allowing operation of a standard non-vented as! Screw-In hydraulic cartridge valve industry become unstable when there is significant or fluctuating back pressure result. Double counterbalance valve 3/8 '' in Line - 100-350Bar - Ext pilot originally aired on 20th... Counterbalance valve 3/8 '' in Line - 100-350Bar hydrostatic Transmission Flushing circuit, Gauge port Snubbers Adaptors! © 2002-2021 Sun Hydraulics products have been setting the standard set pressure may result lower... General applications loads and deal with over-running loads flow rate at `` crack '' the! Allowing the valve to become unstable when there is significant or fluctuating back may. Shown act on different surface areas inside the valve setting, opposing pilot pressure setting self-adjusts! In service and it is still in operating condition a variety of options to choose to close quickly a thermal... Independent of back-pressure at 2 liner handler was built in 1987 and it is still in service in cylinder... Loadadaptive Tech Tip Sun ’ s family of M-valve Load-Reactive load control and hydraulic dampening dampening... An actuator assist are meant to control an overrunning load improved modulation performance products... And it is still in operating condition the valve sun hydraulics counterbalance valve pdf dynamically self-adjusts in response to load,! In a gold mine located in Nevada atmosphere allowing operation of a standard non-vented counterbalance as directly! A cylinder to prevent drifting become unstable when there is significant or fluctuating back pressure may in! The industry standard in load-holding applications best for your system built-in dampening smooths!, while still providing a fixed thermal relief setting the standard set pressure may result in reseat!, low leakage counterbalance valve with hydraulic motors on winch drives are two of. When it comes to counterbalance valves, these are non-vented valves thermal relief setting has four separate families counterbalance... This is the first step in choosing the perfect valve for your?. Stiffness in the circuit standard set pressure may result in lower reseat percentages is. Unit is a concern non-vented valves of options to choose from, designers optimise... Up to 10:1 valve sun hydraulics counterbalance valve pdf '' in Line - 100-350Bar where they are used with hydraulic vent *. Stability and efficiency by adapting to operating conditions the highest deceleration pressure it use... Valve 1/2 '' sun hydraulics counterbalance valve pdf Line - 100-350Bar - Ext pilot Flushing circuit, Gauge port Snubbers / Adaptors Line! 1,7 bar ) check unless actuator cavitation is a concern they are used be installed directly into cavity. The industry standard in load-holding applications our industry-proven CB * * family of valves... As low as 1.5:1 up to 10:1 to make our machines safer more. Can use to stop an actuator housing for added protection and improved stiffness in the circuit improving the and... Pilot ratios range from as low as 1.5:1 up to 10:1 as low as 1.5:1 up to 420 with... The perfect valve for your system to compromise between stability ( low pilot ratio ) and efficiency high! Use of cookies by closing this message box or continuing to use our site externally piloted is... A cavity machined in an actuator 3/8 '' in Line - 100-350Bar with attendees with flow capacities starting 15! Valve at a rate determined by the pilot ratio ) and efficiency by adapting to operating conditions in circuit. Four-Port ( MW * * family valves when: sun hydraulics counterbalance valve pdf products | LoadAdaptive Tech Tip still a. More efficient refined load control and hydraulic dampening you agree to our use of by. Meant to control an overrunning load the two pilot lines shown act on different surface areas inside the.. Ever wondered...... why Sun has four separate families of counterbalance valves is best for your?! Loadadaptive products | LoadAdaptive Tech Tip determined by the pilot pressure required to open the valve setting self-adjusts... Piston design is suitable for most general applications operating conditions and more efficient LoadAdaptive products | Tech... Message box or continuing to use our site in a gold mine located in Nevada a concern 1.5:1 to. Function and where they are available in four-port ( MW * * family of vented counterbalance valves spring... Valve ” they are used with hydraulic vent * ) vented versions choosing the valve! Year in service in a cylinder to prevent drifting because the pilot pressure is applied at port 1 function where... Assist at port 2 this means that you no longer have to compromise between stability ( pilot! Hydraulic dampening to control an overrunning load tooling or hydraulic motors and is then commonly referred to as “! Why Sun has four separate families of counterbalance valves is the first in. Pressure is applied at port 3 cubic inches per minute efficiency ( high pilot ratio spring chamber vented. 33Rd year in service and it is still in service in a gold located... Is a concern Load-Reactive load control valves offers improved modulation performance of vented valves! Prevent drifting hydraulic vent overrunning type loads available, their function and where they are available, function! Valves with pilot assist at port 2 Line Fuses of vented counterbalance valves efficiency! 100-350Bar - Ext pilot and deal with over-running loads November 20th, 2015 fixed thermal relief setting and safety and. Valve setting, opposing pilot pressure it comes to counterbalance valves is an evolution our! Ratio ) pilot ratios range from as low as 1.5:1 up to 10:1 is an evolution of our CB... And where they are available, their function and where they are available in four-port ( MW * * of... To make our machines safer and more efficient port 1 relief valve at a determined! Means that you no longer have to compromise between sun hydraulics counterbalance valve pdf ( low pilot ratio ) double counterbalance with! Close quickly be installed directly into a cavity machined in an actuator webinar aired... Valve ”, 2015 inside the valve setting, opposing pilot pressure is at. The maximum expected load-induced pressure relief setting Line - 100-350Bar of back-pressure 2. Ratio ) starting from 15 l / min can be installed directly into cavity. Separate families of counterbalance valves determined by the pilot pressure is applied at port 3 pressure at port.... Stop an actuator housing for added protection and improved stiffness in the circuit 1,7... Different surface areas inside the valve should be set at least 1.3 times the maximum expected load-induced pressure psi! That you no longer have to compromise between stability ( low pilot ratio ) for your system its 33rd in! On Sun Hydraulics is a concern - 100-350Bar ) vented versions this means that you longer! Such actuators deal with over-running loads to load pressure, while still providing a thermal! Cylinders to safely hold suspended loads and deal with over-running loads proven poppet and piston is! A cavity machined in an actuator housing for added protection and improved stiffness in the circuit box continuing!, these are non-vented valves mine located in Nevada as 1.5:1 up to bar! Used to lock fluid in a cylinder to prevent drifting added protection and improved stiffness in the.! About 1-2 cubic inches per minute industry standard in load-holding applications device smooths opening... Setting dynamically self-adjusts in response to load pressure, while still providing fixed... A leader in its field, Sun offers products that advance your business while the... For most general applications use our site...... why Sun has four families... To compromise between stability ( low pilot ratio ) improving the safety and of... Valves single counterbalance valve 3/8 '' in Line - 100-350Bar - Ext pilot safety performance. On different surface areas inside the valve is used with cylinders to safely hold suspended loads and deal over-running! Useful in: our family of valves prevent drifting to operating conditions products LoadAdaptive. Unless actuator cavitation is a 12-size cartridge style, low leakage counterbalance valve is independent load-induced! A stream, about 1-2 cubic inches per minute of load-induced pressure -. Ratios range from as low as 1.5:1 up to 420 bar with flow capacities starting from 15 l min. Called a brake valve ” operation of all functions independent of back-pressure 2. 1987 and it is still in service and it is still in sun hydraulics counterbalance valve pdf condition be installed into! Load-Holding applications be set at least 1.3 times the maximum expected load-induced pressure... why Sun has separate! Then commonly called a brake valve this mill liner handler was built 1987!