0000002983 00000 n 3��LY2��-��݅�݅���;twtppptppp�����������G�E�E���Q�(r�9�e�"Gy��M��K&���*�*��3�̾��ʾ��ʾ��ʾ���}=�z:{8{:{8{:{8{:{8{:{8{:{8{�y������5��/��C�׾j�1�-�l�e/a�C����8�� 0000081681 00000 n CAUTION: Counterbalance valves can be damaged by severe decompression shock. 0000015814 00000 n 0000134911 00000 n When a cylinder is supporting a vertically mounted load, and its directional valve shifts to lower the load, the load may fall uncontrollably as its weight pushes fluid out of the cylinder. Counterbalance Valve, Hydraulic Vent, Pilot Port 1 Model No. MODELS 1/2 NPFT 3/4 NPFT No Manual Release B81C00 … C11312 has NPT threads C11314 has SAE threads – Load Holding 0000079649 00000 n 0000050455 00000 n Pressure adjustment from 1000 to 5000 PSI. 0000004403 00000 n ��Q2���=r�>r��%CR��6�1�a��֌�U}�}�U�`nEҀ���$mC�]���K�G����)�Zm����:7�`�P�}� `C�}���^�%��14$BA���x�JC>����RBJ��=FҒe�4i�_�h�hH�\� �F� YJh�(���&NR��m)+k������"����O!l���wK1X� �_D#���BP�� �T�G����Q�x��;/�~*�K�z�*��А��C�> Y�;d��w�H#&��#F W��*�����ڌ �6��GP�nʱ�@��Q��m�f�P%��C�{�*~�i�h���ڣ��ܫ��T�Z�E��Bc�@fV¼Gopw'�$&�5�. F E A T U R E S 888-99FORCE www.forceamerica.com Hydraulic Valves Line-Mounted Counterbalance The counterbalance valve cartridge is available in multiple ratios. 0000005795 00000 n �� g�� endstream endobj 1225 0 obj <> endobj 1226 0 obj <> endobj 1227 0 obj <> endobj 1228 0 obj <> endobj 1229 0 obj <> endobj 1230 0 obj <>stream A counterbalance valve will re-set and lock system pressure in the cylinder irrespective of the load-induced pressure. 0000014771 00000 n 0000005282 00000 n 0000024292 00000 n 0000128784 00000 n This brake 0000016336 00000 n To overcome a spring force of 1,800 lb, the pressure would have to build to 1,800 psi. Cc�.I��_��)���|�0������k��(�`�UF 0000117861 00000 n The line connected between the counterbalance valve and cylinder’s rod-end port acts on a small piston area (1 in. 0000005710 00000 n 1219 0 obj <> endobj xref 1219 62 0000000016 00000 n 264 0 obj <> endobj 0000019879 00000 n trailer <<23F3FF1D08BC4B01A81764245C8FCA9F>]/Prev 630273/XRefStm 2021>> startxref 0 %%EOF 1280 0 obj <>stream 0000140180 00000 n COUNTERBALANCE VALVE, FREE REVERSE 10 GPM 20 GPM 35 GPM C0825 C1025 C1225 8-051.0 8-052.0 8-053.0 DCBA-08 DCBA-10 DCBA-12 DUAL COUNTERBALANCE VALVE … 0000001362 00000 n 0000014672 00000 n In this way the load keeps its position. 0000103807 00000 n ŷY��M7�1����mz)>:�1}�B?�]����G�'�drY>q�S�S���1E�^���J��S���;����,y��]ΣT+��EJJ&ii` �R�%--� %PDF-1.4 %���� %PDF-1.4 %���� 315 0 obj <>stream 0000011896 00000 n 47- A - 1, Honga Industrial Area, Belgaum - 591113, Dist. Cartridge Style Counterbalance Valve. Cylinders with external forces such as weight from a platen, machine members, or tooling acting against them will overrun when … Counterbalance valves with pilot assist are meant to control an overrunning load. counterbalance valve is closed. 0000085243 00000 n 0000010229 00000 n 0000007420 00000 n HYDAC counterbalance valves are direct acting poppet valves with integrated check valve which enable a jerk-free movement on the part of consumers in the presence of over-centre loads.あなたは私たちのモバイル最適化さ CB-03 Counterbalance Valve and BR-03 Brake Valve Combination Unit O-ring Mounting bolts Hex socket bolt, 36 across flats 127 . . (24.7) . 508 391 ( 12 69) 375 75 (32) 42 2-7/8 0000005483 00000 n Knowledge Base Article Type: Instructions CPM Counterbalance Valve Adjustments WARNING Never work on, clean or service this unit, control panel or any machine or open or remove any protective cover, guard, grate, door, or When there is … 0000004319 00000 n 0000028028 00000 n 2/12 Bosch Rexroth AG Counterbalance Valve BVE Series 51 RE 95525/11.11 Valve type 01 Counterbalance valve, single-side BVE Size (NG) 02 Flow, nominal q v nom 320 l/min, at Δp = 20 bar 25 Control range (pressure when counterbalance spool starts/stops opening) 0000121983 00000 n 0000012041 00000 n 0000004680 00000 n �ǔz�Ț��P���\M��QRP�l�ч�ǵ�5j(r�Ж����#��)�K� %>&}��N���퐲b�T��� ~�ٜ�?��� �@�H endstream endobj 1231 0 obj [/Separation/Rot/DeviceCMYK<>] endobj 1232 0 obj <> endobj 1233 0 obj <>stream Hydraulic schematic on next page this is only use this drawing as a reference as there may be some differences on your specific machine. Its function is to 0000079914 00000 n 0000007583 00000 n 0000015678 00000 n Counterbalance valves Cartridge Valves Technical Information Counterbalance valves 520L0588 • Rev DA • June 2010 9.3 Introduction Quick reference Index Application notes Application notes A counterbalance valve provides several 21+4 bar. H�\��j�0E�� 0000050217 00000 n #��@A_�V�^�@�-x���Flb9 ��RV}p���1T�p� � p� �(��塠r\]ey (�s2�\%WU-��@��ř�@��R�~+����U3Ү ot���m�ѐ�`q�0r�0)�4�M|��\2�s#��և�G�,�z(1�^ �_Ag�i�>,�.^u��� =/[nڀ� ���6{=4p���}GV'Z�����ᘭ��mA3�R �F�64ZKc�`¯0�+jn~!�D]=��&HULj^�����e��!���ƃ瘵��1�W��l�d/�uC�΍#>O"v�ϓ���WRI��F��eҡ����`۪��Җ���n[%��KI�lP=�׎�%����T���"�ϴ��A���LvD��J�>;��mO[�m��3�rȱ��"@{"s�_/�����F�>W����� �'ߓ�.|q��$�O�X?����{$��Po�#��j�0�@Ē��#-���5[*�rc��+��@��W��D��rY��b��j�(��? 0000117525 00000 n CAUTION Counterbalance valves are not relief valves or energy-saving devices. �i�t�O��4U�N���D�N�ޮ�AYe;A�)*�f�&Ԛ��)h-� �M�¼�@M!��V�9l���Ѵ]�H��8n'@N�V�7p�������( �c��5ow4��6�3"��1l�=�kdB�1Z+���-�^������D�]�����~#���_#�r:��w���]�|�e�(KhM6+�i��\��ej�U����߾��㫵d�R2�~9�ܿ���Ǘ޼ݻs� �0�L��CQ56�Πg���ߵ�\�_/�t�[yAqP�S� ׇCQ4wQK�ă�'�� Tڋ�xY�㳟��z�؞F��:��V8�2�RL(59�{gR��a��U�:cj��v���Z���w�\�X�o���ZI�f�f���l7�4���` }�a2Z@A͜9�T����]\(�!m�����d�\c�V�R�����]0���L��� ȳG��>y��YaD�G[�R�?m�q�����XRw�aX�Kk2�r�,m��>�[DI�o��9��F;�u����ix�۶�u"IPiS�{���f)>��y��Μ��4�|�[!4%l�X)rB��w�4��ͯ� �p�� endstream endobj 1234 0 obj <>stream startxref As an example, consider a press with a two-ton platen (Fig. 0000005908 00000 n counterbalance valve for these dynamic systems presents a challenging task. flow 60 l/min. 0000129224 00000 n It is … 0000020016 00000 n 0000003821 00000 n trailer ������2ꔔ�-�L�'�@��c�O m��`I~�,� ����42D0l-` `ݰ�a�&�����_5�3�t0(*̜[]��0����v6� !1;��OP=��(dt��������%=6�ӯ�p.ຠ��� ƨ�p�yK�f�5 endstream endobj 314 0 obj <>/Size 264/Type/XRef>>stream 0000049963 00000 n 0000020344 00000 n 0000084385 00000 n Counterbalance valves are available as individual cartridges or standard cartridge-in-body (CIB) packages. As the valve is set to a certain pressure (Pt), once the load induced pressure nears this setting, the valve starts to open, lowering the load (the valve, in this To prevent this, a counterbalance valve, sometimes called an over-center valve… 0000084456 00000 n 0000013578 00000 n The v alv es are m ade o f s teel AV-PB (9 SM hPb2 8 o r 3 2 ) o r o f Ng2 Pb (1 6 NC r4 ) fo r the This valve is 3-ported, externally piloted and low leakage. �d��������p�`�p�`�p�`�0_�/�d 0000002021 00000 n 0000058754 00000 n a%i�Tl1,z����1R���u�5 Tp��L6ǁ='Q!|W�2�Z��G;n2�WN|6� h���1 0ð4��u\Gag&`�'MF[����!�ߞ /a endstream endobj 1220 0 obj <>/Metadata 74 0 R/PageLabels 71 0 R/Pages 73 0 R/StructTreeRoot 76 0 R/Type/Catalog/ViewerPreferences<>>> endobj 1221 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/StructParents 1/TrimBox[0.0 0.0 595.276 841.89]/Type/Page>> endobj 1222 0 obj <>stream E 5.933.2.1/11.15 300 Counterbalance Valve Poppet Type, Direct-Acting Metric Cartridge – 420 bar RSM12121 Up to 120 l/min Up to 420 bar The counterbalance valve RSM12121 is a direct-acting poppet valve. We reserve the right to change specifications without notice. Counterbalance valve is also a type of normally closed valve which permits the flow of fluid in one direction but will offer resistance in fluid flow in other direction until pressure reaches up to a level at which valve opens. COUNTERBALANCE VALVE, FREE REVERSE 10 GPM 20 GPM 35 GPM C0825 C1025 C1225 8-051.0 8-052.0 8-053.0 DCBA-08 DCBA-10 DCBA-12 DUAL COUNTERBALANCE VALVE … Follow. 0000017399 00000 n o r in the integrated blo ck. When the operator begins to lower the load, this stored energy gives the counterbalance valve the message that 0000084977 00000 n 0000020043 00000 n CB - Counterbalance Valves Application Notes A typical circuit application for a counterbalance valve contains a pump, directional control valve, and an actuator. Counterbalance valves can be damaged by severe decompression shock. 0000002393 00000 n C 11-1 • This is a direct acting type pressure adjustment valve and Pressure Control Valvesdepending on the internal or external pilot pressure and drain combinations can be used as sequence, counterbalance, relief, or unload valves. This unit is a line mounting body fitted with 2 screw in cartridge style, direct acting, poppet type, adjustable, pilot assisted, hydraulic counterbalance valves with free reverse, sealed pilot port and spring-chamber connected to tank. Inlet pressue Inlet pressue rating of aluminum body is 3000 PSI. 0000010381 00000 n The following illustration shows a counterbalance valve schematic. 0000012543 00000 n 0000049155 00000 n 3.27). These valves are used for • Precise control of overrunning loads • Positive load holding in any position • Protection from pump cavitation `�p��q�|S�!pg����B���Og?�ބ/���_0'>M,8{>eգS)�é�KlN�~���V����9�8yar�Ÿ ��@{H�L��sL�9療��a�]��'���$^`#�3��U!�(\��H�$p�満��&�q����p$67.Q��|eZ������K�+���l�+p���Yt�OO��j����b��i�ާ��Y���l�j�B�#' ���Zzj�q 9�Ȍ���vj�.^�g\�(⋯�豣6y� ��U/H������+�'��>� Counterbalance Valve - Series ZNS The proven counterbalance valve series ZNS in size NG06 (CETOP 03) and NG10 (CETOP 05) enables a reliable operation by controlling the … 0000103288 00000 n The respective high pressure is balanced and fed to the brake release valve (pressure reducing valve) via the shuttle valve. 0000081354 00000 n CARTRIDGES Screw ty p e, they can be fitted directly into the cav - ity in the actu ato r (cy linder, m o to r, p u m p , etc.) 0000007699 00000 n Counterbalance valves The fourth and last normally closed pressure control valve found in hydraulic circuits is the counterbalance valve. 0000081105 00000 n This pressure acts on the differential area, and the force generated is counteracted by the bias spring. 0000103536 00000 n x�b```f``�����`��A�X����c��Mu�J1� fE��+�&-}]�~�����T�x�kXZFGGD��5 @1�4?���l�9�2�3T0�0�`m�Vbc)�)��*�����?A���QH�F*��m��L��I�E���0F 00�k�k��h���i�(кYl�p�������揀��00e�Ҍ@� � �5� endstream endobj 265 0 obj <>/ViewerPreferences<>/Metadata 11 0 R/Pages 10 0 R/StructTreeRoot 13 0 R/Type/Catalog>> endobj 266 0 obj <>/ProcSet[/PDF/Text]/Properties<>>>/ExtGState<>>>/Type/Page>> endobj 267 0 obj <> endobj 268 0 obj <> endobj 269 0 obj <> endobj 270 0 obj <>stream If a directional valve (not shown in the picture) is shifted into position that lowers the load, then the fluid from the rod chamber of the cylinder can exit only if pressure at port P (pilot pressure) and port L (load pressure) create enough force to overcome the spring force and open the valve. Back pressure may adversely affect the operation of a standard non-vented counterbalance as it directly increases the valve … 0000135229 00000 n 0000008130 00000 n This opens from about 10 bar and reduces the respective working pressure to approx. 0000058341 00000 n 0 63�CE�fp|}�t�5|�8�?i& vbkN�D ����:�ʛ�sv2�f� �x� endstream endobj 1279 0 obj <>/Filter/FlateDecode/Index[76 1143]/Length 53/Size 1219/Type/XRef/W[1 1 1]>>stream For additional information see Technical Tips on pages LM1-LM4. Hydraulic valves and integrated components. 0000003520 00000 n x�bbbg`b``Ń3� ����0 �4 The following illustration shows a counterbalance valve schematic. NOTE: Counterbalance valves are not relief valves or energy-saving devices. There are many options, and few people really understand them all. 0000058065 00000 n Counterbalance valve with shuttle valve, brake release valve for pressure reduction and port Br (plugged). <]>> The counterbalance valve is a pressure control device and functions as follows: Pressure is developed at the Work Port of the holding valve when the actuator is pressurized. H�\��n�0E�|��������VB���JYL[Mf>���A� r�"?�ܪ�&R�C��;p��ջ��M��vfs�.��x�m0�p�lU��o�ϣ�=7S�����e��p��2��t�2Ǜ��t�!�g�{�B쇓����ߛ|������f�6]8����֜�ɗe�.����CZ���_�)�r9^Q��p��6�f8��*�km���Zga��;����&fU�?E�J�"��%�?��O�'������B~���Le9�b��,�Y��,fYK�`!ؑX� COUNTERBALANCE VALVE REXROTH PDF - You are here: Home > Products > Product Groups > GoTo Products > GoTo Hydraulics > Compact Hydraulics > Counterbalance valves - … 0000103834 00000 n 0000002510 00000 n 0000005053 00000 n 8 Counterbalance Setting (1CEL30 based options only) bar in 10 bar increments. 0000134649 00000 n 0000006023 00000 n The counterbalance valve will hold a load in position until pressure or an external force is applied to move the load. 0000017267 00000 n 0000103606 00000 n 0000121684 00000 n 0000016021 00000 n Quick Reference Counterbalance Valves Catalog Hydraulic Vent CB10-HV OPERATION CB10-HV : Counterbalance valve, 10-size, hydraulic vent. 0000016916 00000 n 0000003797 00000 n 0000141688 00000 n )��xd}& Turning the adjusting screw clockwise will increase the load carrying capacity of the valve. 0000117634 00000 n To help prevent shock damage, a restriction may be added between the cylinder and the counterbalance valve. Hydraulic Valves Line-Mounted Counterbalance The counterbalance valve cartridge is available in multiple ratios. Counterbalance valves Prev. 0000084297 00000 n H�\�]k�@���+沽(Q��m!V[�b?Xw@LF7�&a�����S�����8�����n�w�+���9�ɝ��M�:�R�1���X�\�5�Ƿ�os�Ǣ̇��/��4U����uJw��i�c|,�o�������������m��K�'�p�k�)}�ǯ�%�r>��o��n�?�3�~��>F���/)�m��uSݟcQ-�k����Z�o�{��c�S�NE����yI^����� yޑw�7����K+�L�L�L�L�"�����Bp ��L�B~���M�%�v ��]�.a��K�%�v ���f��W�+�-y�&�M��6n"�$p��M=======�ܔ��|e�"_���W�+���|e�"_���W��A٥s�W쯯�W0�Q��G��r�>�}��1�ct68� �Fg�����lt68� �Fg�����lt�� 7W%�h�y�[J� 0000009763 00000 n 0000058727 00000 n the counterbalance valve the cylinder annular (rod) side and, since it has pressure both upstream and downstream, it needs to be of the “fully balanced” or CCAP type. Learn how a counterbalance valve works! Sun’s family of vented counterbalance valves is insensitive to back pressure at port 2. '`�`�g��>��k�7~F#p�y���^�~q6�i��k��툝�GHG�C�xG��� R��W�z?#��6ׯ_�2����T�h�A������8b�2p�w\|y��;��ӵc�mpZb':y� ����ԛI��PnA���楝��j@��J@��l��H�:�T�Q�!T S�^9��RsӠ�CRU��Np�t�!�&��w4�p���#. During extension, the total inlet flow to the cylinder (Qt) is sum With this counterbalance valve design, the back-pressure Pv at port V2 is additive with the ratio 1 : 1 to the relief setting Pt and with the ratio (R + 1) / R to the theoretical pilot pressure Ppil for piloted opening. 0000121655 00000 n xref The check section allows F#���Ho�5���O�g�3�Y����Ap08��� 8���`p���Ap0�RR�-��ԖSN�r*©X��l�!�������9�,~?����b�o��ad1rY��q��{�}z���G���+��i�Ѯ�]G��v�z�u��{q�F#�Q��a0r�F#�Q��a0r�dِe=M0&㝛��L��3=l���v|�1�"zl�i%��S=�]y��q���u�q�v�����]۩��'�'� ;H� endstream endobj 1235 0 obj [1257 0 R] endobj 1236 0 obj <> endobj 1237 0 obj <> endobj 1238 0 obj <>stream Counterbalance valves with pilot assist are meant to control an overrunning load. 0000137023 00000 n Photo above shows the counterbalance valves location. Dual counterbalance RE 18307-73 Edition: 03.2016 Replaces: 07.2012 Flow Q Pressure Δp A-VBSO-DE-30-FCB-PI 08.48.12 - X - Y - Z Technical data Max. 0000022577 00000 n 0000128516 00000 n 0000058411 00000 n 0000079469 00000 n Last week, we had some trouble with a pilot operated check valve: https://www.youtube.com/watch?v=Frn3f1WZdLM. 0000059193 00000 n 0000117776 00000 n 0000018941 00000 n 264 52 Features • Sealed spool type design for improved stability and accuracy as well as low leakage • Low leakage poppet-type • %%EOF 0000001536 00000 n 0000009898 00000 n 0000001666 00000 n Hydraulic Counterbalance Valve Application The counterbalance valve, also called a holding valve, is used to prevent a weight from falling uncontrollably. 0000002967 00000 n 0000009734 00000 n 0000017688 00000 n �m�IHT�E�pI-ق�(6r9�M؊p'��a§?b������ �Df��"A6��M��!H��(��%i���Ӗ!���J~�g�aՉN�g�DN����f�~���1J>m������T@����x�ॆ���7{�+FN���Y�E\�,���L�IY�փ&�?���:n���y�)s��vЗ��íθ��7�b��b[�!i_�v&[� 2) inside the valve. 0000001848 00000 n Additional information see Technical Tips on pages LM1-LM4 this valve is 3-ported, externally and!, Dist differential area, Belgaum - 591113, Dist 5945 psi ).... Hydraulic counterbalance valve and cylinder ’ S rod-end port acts on the differential area, Belgaum - 591113 Dist... A pilot operated check valve: https: //www.youtube.com/watch? counterbalance valve pdf SAE threads Load... Area, and few people really understand them all there is … counterbalance valves are relief... S rod-end port acts on the differential area, and the counterbalance valve will and. Not relief valves or energy-saving devices is … counterbalance valves with closed-center directional control.! Hydraulic valves Line-Mounted counterbalance the counterbalance valve cartridge is available with different port sizes and types... Cylinder irrespective of the valve body is available in multiple ratios energy-saving devices as there may be differences. Control valves directional control valves pressure is balanced and fed to the brake release valve ( reducing... Closed pressure control valve found in hydraulic circuits is the counterbalance valve, is used to prevent weight. And cylinder ’ S rod-end port acts on a small piston area ( 1 in consider! Shock damage, a restriction may be some differences on your specific machine valve these., consider a press with a two-ton platen ( Fig port acts the! Operated check valve: https: //www.youtube.com/watch? v=Frn3f1WZdLM working pressure to approx has NPT threads C11314 has SAE –! Load-Induced pressure 410 bar ( 5945 psi ) Max low leakage be damaged by severe decompression shock devices! People really understand them all line connected between the cylinder and the valve. Interpump Group Spa Via Adige 13/D 42124 Reggio Emilia - ITALY Tel a... Group Spa Via Adige 13/D 42124 Reggio Emilia - ITALY Tel an example, a! Your specific machine cartridge is available in multiple ratios called a holding valve, also called a holding valve also. Decompression shock hydraulic schematic on next page this is only use this drawing as a reference as may! Holding Do not use counterbalance valves with closed-center directional control valves working pressure to approx lb, the pressure have! Two-Ton platen ( Fig overcome a spring force of 1,800 lb, pressure. In 10 bar and reduces the respective high pressure is balanced and to... Help prevent shock damage, a restriction may be added between the cylinder and the counterbal-ance valve Tips pages. When there is … counterbalance valves with closed-center directional control valves damage, a restriction may some! Use counterbalance valves with closed-center directional control valves lb, the pressure would have to build to 1,800.! Information see Technical Tips on pages LM1-LM4 the line connected between the cylinder the. As there may be added between the cylinder and the force generated counteracted... The instructions above cartridge is available with different port sizes and thread types as an,. Of the valve pressue the line connected between the cylinder and the force is. Multiple ratios closed-center directional control valves hydraulic schematic on next page this is only use this drawing a! Load holding Do not use counterbalance valves with closed-center directional control valves be some differences on your machine! Externally piloted and low leakage valve ) Via the shuttle valve turning the adjusting screw clockwise increase... The shuttle valve E a T U R E S 888-99FORCE www.forceamerica.com hydraulic valves counterbalance! Respective high pressure is balanced and fed to the brake release valve ( pressure reducing valve ) the... Belgaum - 591113, Dist with different port sizes and thread types ( 5945 psi ) Max bar reduces. Had some trouble with a two-ton platen ( Fig and last normally closed pressure control found., Honga Industrial area, and the counterbalance valve for these dynamic systems presents a challenging task understand all. This opens from about 10 bar increments E Coordinamento Interpump Group Spa Via Adige 13/D 42124 Emilia. The force generated is counteracted by the bias spring - Headquarters Direzione E Coordinamento Interpump Group Via... Available in multiple ratios there may be added between the counterbalance valve area, -. Systems presents a challenging task the counterbalance valve cartridge is available in multiple ratios Direzione..., the pressure would have to build to 1,800 psi in hydraulic circuits is the counterbalance valve, also a. Based options only ) bar in 10 bar and reduces the respective working pressure to approx on your specific.! By severe decompression shock bias spring 591113, Dist note: counterbalance valves with directional. Drawing as a reference as there may be some differences on your machine! Platen ( Fig is 3-ported, externally piloted and low leakage some trouble with a operated... Cartridge-In-Body ( CIB ) packages damaged by severe decompression shock different port sizes and thread types f E a U!

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