Pilot-operated Servo Valve, Type ICS
Data sheetPilot-operated servo valveType ICSICS pilot-operated servo valves belong to the ICV(Industrial Control Valve) family.The valve comprises three main components:valve body, function module and top cover.ICS pilot-operated servo valves are pilot operatedvalves for regulating pressure, temperature andON/OFF function in refrigeration systems. ICSvalves are designed for low and high-pressurerefrigerants.ICS valves can be used on the high and lowpressure sides, in wet and dry suction lines and inliquid lines without phase change (i.e. where noexpansion takes place in the valve).The function of ICS valves is dependent on thepilot pressure applied from either a pilot valve orexternal pilot pressure source.ICS 1 pilot has one pilot pressure connection andICS 3 pilot has three pilot pressure connections.Features Danfoss DCS (MWA) 2018.10 Designed for industrial refrigerationapplications for a maximum working pressureof 52 bar g/754 psi g. Applicable to HCFC, HFC, R717 (Ammonia) andR744 (CO2). Direct coupled connections. Connection types include butt weld, socketweld, solder and threaded connections. Low temperature steel body. Low weight and compact design. V-port regulating cone ensures optimumregulating accuracy particularly at part load. Function module has a QPQ surface treatedinsert and a steel piston ring ensuring precisecontrol accuracy. ICV 4 in., 5 in. and 6 in. ANSI with NPT threadedpressure outlet in the outlet of the valve. Replaceable Teflon valve seat for ICS 25-80. Maintenance spare part kit available forICS 100-150. Modular Concept:–– Each valve body is available with severaldifferent connection types and sizes.–– Valve overhaul on ICS 25-80 is done byreplacing the function module.–– Possible to convert ICS pilot-operatedservo valve to ICM motor operated valve. Manual opening. The ICS valve is a multifunction valve whereseveral pilot valves can be mounted into thepilot ports. The standard range of pilot valves can beused on all sizes of ICS valves. Pilot valves canbe either screwed directly into the ICS valve,thus eliminating the need for solder/weldconnections or external pilot lines. Pressure gauge connection port to measurevalve inlet pressure. The top cover can be rotated into any possibleposition without affecting the operation of thevalve. To get an updated list of certification on theproducts please contact your local DanfossSales Company.AI241186442033en-001002 DKRCI.PD.HS2.B5.02 1
Data sheet Pilot-operated servo valve, type ICSContentsPageFeatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3The ICS Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Material specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Configuration examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Nominal capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58Dimensions and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Danfoss DCS (MWA) 2018.10AI241186442033en-001002 DKRCI.PD.HS2.B5.02 2
Data sheet Pilot-operated servo valve, type ICSDesignICS valves are designed as pilot operated valvesrequiring minimal pressure differential to open.If the pressure difference is 0 bar/0 psi, the ICSvalve will be closed. If the pressure difference is0.2 bar/3 psi or more, the ICS valve will be fullyopen. At pressure differences between 0.07 bar/1psi and 0.2 bar /3 psi, the opening degree will becorrespondingly proportional.ApprovalsThe ICV valve concept is designed to fulfill globalrefrigeration requirements.For specific approval information, please contactDanfoss.The ICS valves are approved in accordance withthe European standard specified in the PressureEquipment Directive and are CE marked.For further details / restrictions - see InstallationInstructionThe ICS is available for use with either one orthree pilot valves.Valve body and top cover materialLow temperature steelTwo of the three pilot pressure connections (S1and S2) are connected in series whilst the third(P) is connected in parallel to S1 and S2. Thisallows different combinations of pilot valves tobe used, thus providing numerous variations incontrol functions.ConnectionsThere is a very wide range of connection typesavailable with ICS valves: D: Butt weld, DIN (2448) A: Butt weld, ANSI (B 36.10) J: Butt weld, JIS (B S 602) SOC: Socket weld, ANSI (B 16.11) SD: Solder connection, DIN (2856) SA: Solder connection, ANSI (B 16.22) FPT: Female pipe thread (ANSI/ASME B 1.20.1)ICS valvesNominal boreDN 25 (1 in.)DN 32-65 (11/4 - 2½ in.)Classified forCategoryTechnical data Danfoss DCS (MWA) 2018.10DN 80-125 (3 - 5 in.)Fluid group IArticle 3, paragraph 3 RefrigerantsApplicable to HCFC, HFC, R717(Ammonia) andR744 (CO2).Use with flammable hydrocarbons cannot berecommended; please contact Danfoss. Temperature range–60/ 120 C (–76/ 248 F). Surface protectionICS 25-150:The external surface is zinc-chromated toprovide good corrosion protection.IIIII Pressure rangeThe valve is designed for:Max. working pressure: 52 bar g (754 psig)Opening differential pressure:Fully open: Min. 0.2 bar g (min. 3 psig)Max. Opening Pressure Differential (MOPD),solenoid valves only - at nominal conditions.– 10 W a.c. up to 21 bar (305 psi)– 20 W a.c. up to 40 bar (580 psi)AI241186442033en-001002 DKRCI.PD.HS2.B5.02 3
Data sheet Pilot-operated servo valve, type ICSThe ICS ConceptThe ICS concept is developed around a modular principle. Thisgives the possibility of combining function modules and topcovers with special valve body size that is available in a variety ofconnection possibilities. There are eight valve bodies available.ICV 25ICV 32ICV 40ICV 100ICV 50ICV 65ICV 125ICV 150 Valve bodies in the sizes ICV 20-ICV65 areavailable with a range of undersizes throughoversized connection sizes and types.ICV 100 - ICV 150 are available in butt-weld DINand butt-weld ANSI nominal sizesDAJSOCSDSAFPTButt-weld DINButt-weld ANSIButt-weld JISSocket weld ANSISolder DINSolder ANSIFemale Pipe Thread Each valve body may be fitted with a 1 pilot or3 pilot top cover. Danfoss DCS (MWA) 2018.10AI241186442033en-001002 DKRCI.PD.HS2.B5.02 4
Data sheet Pilot-operated servo valve, type ICSThe ICS Concept(continued)In ICS, multiple inserts (function modules) areavailable to give different capacities.TypeKvCv(m3/h)(USgal/min)ICS 25-51.72.0ICS 25-103.54.16.07.0ICS 25-15 Danfoss DCS (MWA) 2018.10Valve bodysize25ICS 25-2089.3ICS 25-2511.513.3ICS 32321720ICS 40402731ICS 50504451ICS 65657081ICS 80808598ICS 100100142165ICS 125125207240ICS 150150354410AI241186442033en-001002 DKRCI.PD.HS2.B5.02 5
Data sheet Pilot-operated servo valve, type ICSFunction3fICS 1 PilotICS 1 Pilot and ICS 3 Pilot1. Body1a Pilot channel to inlet side1b Circular gap between house andmodule2. Top cover2a Pilot channels in top cover2b Pilot insertion hole2c Pressure gauge connection2d Piston top inlet channel2e Cross channel SI to SII2f Inlet channel2g Circular groove3 Function module3a Cylinder3b Piston3c Valve plate3d Spring3e Cone3f Equalisation orifice3g Piston rodp1p2p3p48Inlet pressurePressure on pistonPressure underneath pistonOutlet pressureManual operating spindleFig. 1ICS 3 PilotsThe ICS main valve is a pilot operated valve. Thetypes of pilot valves used determine the function.The ICS main valve with pilot valve(s) controlsrefrigerant flow by modulation or on/off inaccordance with the pilot valve and main valvestatus. The manual spindle can be used to openthe valve plate.The maximum pressure (p2) can act on the top ofthe servo piston (3b). p2 normally corresponds tothe pressure, p1 - ICS main valve inlet pressure.Inlet pressure p1 is led, via the drilled channels(1a, 1b, 2f, 2b (pilot), 2a, 2d) in the valve body (1)and cover (2) through the individual pilot valvesand onto the top of the servo piston (3b).The opening degree of the main valve isdetermined by the pressure difference(differential pressure) between pressure p2, whichacts on top of the servo piston (3b), and pressurep3, which acts on the underside of the servopiston.The degree of opening of the individual pilotvalves determines the magnitude of pressurep2 and thus the degree of opening of the mainvalve. The equalisation hole (3f ) in the servopiston (3b) ensures that pressure p2 is balancedin accordance with the degree of opening of thepilot valve.If this pressure difference is 0, the main valve willbe fully closed.If the pressure difference is 0.2 bar (3 psi) orgreater, the main valve will be fully open.At pressure differences (p2 - p3) between 0.07 bar(1 psi) and 0.2 bar (3 psi), the degree of openingwill be correspondingly proportional.The port of the throttle cone (3e) is V-shaped,which provide good regulation characteristic topilot operated main valves even at low loads.P3 pressure is equal to the valve outlet pressure(P4), due to a clearance between the piston rod(3g) and the function module. The openingdegree of the ICS valve is therefore controlled bythe application of P2 pressure acting on top ofthe servo piston, which is equal to or greater thanvalve outlet pressure (P4).p2 p4 closedp2 p4 0.2 bar (3 psi) fully openp4 p2 p4 0.2 bar (3 psi) proportional degreeof opening. Danfoss DCS (MWA) 2018.10Fig. 2Note:When ICS valves with 3 pilot ports are used withexternal pressure connector (fig. 2, pos. 61), thevalve port inlet pressure will be isolated.The ICS can be fitted with just a single screwedin pilot valve or external pilot connection. Thedegree of opening of the main valve will be inaccordance with the control status of the pilotvalve or external pilot flow control.ICS main valve with one pilot connection is fullyclosed when the pilot valve is fully closed andfully open when the pilot valve is fully open.Otherwise the degree of opening of the mainvalve is proportional to the degree of opening ofthe pilot valve.The ICS 3 pilot version can be fitted with one,two, or three pilot valves so that up to threeregulating functions are possible. If the externalpilot connection is used, more functions can beadded.AI241186442033en-001002 DKRCI.PD.HS2.B5.02 6
Data sheet Pilot-operated servo valve, type ICSFunction (continued)In the ICS three pilot version, the pilot ports arerelated as follows: The pilot valves fitted in ports SI and SII areconnected in series.The ICS 3 pilot operated main valve will befully closed if just one of the series-connectedpilot valves is closed. The main valve can onlyopen if both pilot valves are open at the sametime. The pilot valve fitted in port P is connected inparallel to the pilot valves in ports SI and SII.The ICS valve will be fully open if the pilot valvein P is fully open, irrespective of the degree ofopening of pilot valves SI and SII.The ICS valve will be fully closed if the pilot valvein P is fully closed and at least one of the valvesin SI or SII is fully closed at the same time. Therelation between the pilot valves in ports SI, SIIand P is shown in the table on the next page.If the ICS is not fitted with three pilot valves,the unused port(s) must be sealed with ablanking plug. If the blanking plug is fitted asan assembled unit, A B, the channels fromthe specific port will be closed. (See illustrationbelow)If only the top part, A, of the plug is fitted, thechannels from the ports in question will be open.If the degree of opening of the ICS main valveis not to be a function of the main valve inletpressure, or if more than three regulatingPilot valve osedOpenOpenBlanking plug A B Danfoss DCS (MWA) 2018.10ICS valveSIfunctions are required, ports SI, SII or P can befitted with a nipple for the connection of externalpilot pressure. This applies to all ICS versions.The pressure to which the external pilot line isconnected will then determine pressure p2 on topof the servo piston. The pilot valves fitted in thatexternal pilot line will determine the main valvefunction. Pilot valves installed in external linesmust be mounted in a type CVH housing.Depending on the function of the pilot valves,the ICS regulating characteristic becomes: on/off proportional integral or cascade.ICS main valves are therefore especially suitablefor all forms of temperature and pressureregulating systems.An overview of the types of pilot valves availablecan be found in the literature “Pilot valves foroperated main valves” (AI248786497190).On the following pages, a number ofconfiguration examples can be found. Theseare only for explanatory purpose. However, byusing the literature regarding pilot valves theseexamples are easier to comprehend.Example (ICS with 3 pilot valves)OpenBlanking plug AAI241186442033en-001002 DKRCI.PD.HS2.B5.02 7
Data sheet Pilot-operated servo valve, type ICSMaterial specification - ICS 25, 32, 40, 50, 65Type and size of Bolt (pos. 5)TypeICS 25ICS 32ICS 40ICS 50ICS 65No.1233a3b3cABCDE45678910PartBodyTop coverFunction module(assembled)o-ringo-ringWasher plateCylinderPistonValve plateSpringConeGasketBoltsPlugGasketManual operatingspindlePlugGasket Danfoss DCS (MWA) 2018.10MaterialLow temperature steelLow temperature steelCloroprene (Neoprene)Cloroprene (Neoprene)SteelSteelSteelPTFESteelSteelFiber, non-asbestosStainless steelSteelAluminiumSteelScrewM12 30 A2-70 DIN 933M14 35 A2-70 DIN 933M14 40 A2-70 DIN 933M16 40 A2-70 DIN 933M16 50 A2-70 DIN 933ENG20Mn5QT, EN 10213-3G20Mn5QT, EN 10213-3P285QH QT 10222-4ASTMLCC A352LCC A352LF2, A350JISSCPL1 G5151SCPL1 G5151A2-70, EN 1515-1Grade B8 A320A2-70, B 1054SteelAluminiumAI241186442033en-001002 DKRCI.PD.HS2.B5.02 8
Data sheet Pilot-operated servo valve, type ICSMaterial specification - ICS 100, 125, 15087523a63b43c3d3h3e33h3f3g1Type and size of Bolt (pos. 5)TypeScrewICS 100 M20 60 A2-70 DIN 933ICS 125 M20 60 A2-70 DIN 933ICS 150 M20 70 A2-70 DIN 933No.1233a3b3c3d3e3f3g3h45678PartBodyTop coverFunction module (assembled)Piston/rodPiston ringInsertSpringConeTeflon plateWasher plateo-ringGasketBoltsPlugEye boltManual operating spindle Danfoss DCS (MWA) 2018.10MaterialLow temperature steelLow temperature steelStainless steel / steelSteelSteelSteelStainless steel / steelTeflon unfilledPTFECloroprene (Neoprene)Fiber, non-asbestosStainless steelSteelGalvanized steelSteelENASTMG20Mn5QT, EN 10213-3 LCC A352G20Mn5QT, EN 10213-3 LCC A352JISSCPL1 G5151SCPL1 G5151A2-70, EN 1515-1A2-70, B 1054Grade B8 A320AI241186442033en-001002 DKRCI.PD.HS2.B5.02 9
Data sheet Pilot-operated servo valve, type ICSConfiguration examplesExample no. 1-1ProductsProductsConstant pressure regulation1 ICS 1 Pilot1 CVP-L/M/H1 ICS 3 Pilots1 CVP-L/M/H2 Blanking plugsSI: A BSII: AExample no. 1-2ProductsProductsDifferential pressure regulation1 ICS 1 Pilot1 CVPP-L/M1 ICS 3 Pilots1 CVPP-L/M2 Blanking plugsSI: A BSII: AExample no. 1-3ProductsProductsOn/off regulation (solenoid valve)1 ICS 1 Pilot1 EVM1 coil1 ICS 3 Pilots1 EVM1 coil2 Blanking plugsSI: A BSII: AExample no. 1-4ProductsProductsRegulation with externalcontrol pressure1 ICS 1 Pilot1 nipple forexternalcontrolpressure1 ICS 3 Pilots1 nipple forexternal controlpressure2 Blanking plugsSI: A BSII: AExample no. 1-5ProductsProductsOn/off regulation (solenoid valve)1 ICS 1 Pilot1 EVM-NO(12 W coil)1 ICS 3 Pilots1 EVM-NO (12W coil)2 Blanking plugsSI: A BSII: A CVP-L (-0.66 to 7 bar g)(19.5 in. Hg to 102 psig) CVP-M (4 to 28 bar g)(58 to 406 psig) CVP-H (25 to 52 bar g)(363 to 754 psig) CVPP-L (0.66 to 7 bar g)(19.5 in. Hg to 102 psig) CVPP-M (4 to 28 bar g)(58 to 406 psig) Danfoss DCS (MWA) 2018.10AI241186442033en-001002 DKRCI.PD.HS2.B5.02 10
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 1-6ProductsProductsCrankcase pressure regulation.(Max. suction pressureregulation)1 ICS 1 Pilot1 CVC-L1 ICS 3 Pilots1 CVC-L2 Blanking plugsSI: A BSII: AExample no. 1-7ProductsProductsElectronically controlled mediatemperature regulation1 ICS 1 Pilot1 CVE1 ICS 3 Pilots1 CVE2 Blanking plugsSI: A BSII: A -0.66 to 8 bar g(19.5 in. Hg to 116 psig) Danfoss DCS (MWA) 2018.10CVEDanfoss27H475 -0.45 to 7 bar g(13.3 in. Hg to 102 psig)AI241186442033en-001002 DKRCI.PD.HS2.B5.02 11
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 2-1ProductsConstant pressure regulationcombined with electrical shut off –0.66 to 7 bar g(19.5 in. Hg to 102 psig)1 ICS 3 Pilots1 blanking plug (A B)1 CVP-L1 EVM1 coilExample no. 2-2ProductsConstant pressure regulationcombined with electrical wideopen1 ICS 3 Pilots1 blanking plug (A)1 CVP-L1 EVM –0.66 to 7 bar g(19.5 in. Hg to 102 psig)Example no. 2-3ProductsConstant pressure regulationcombined with electrical shut offand wide open1 ICS 3 Pilots1 CVP-L2 EVM2 coils –0.66 to 7 bar g(19.5 in. Hg to 102 psig)Example no. 2-4 ProductsConstant pressure regulationwith change-over between twopreset evaporating pressures1 ICS 3 Pilots2 CVP-L1 EVM1 coil –0.66 to 7 bar g(19.5 in. Hg to 102 psig)Example no. 2-5ProductsExternal control pressure withelectrical shut off combined withconstant pressure regulation1 ICS 3 Pilots1 nipple for external controlpressure1 CVP-L1 EVM1 coil –0.66 to 7 bar g(19.5 in. Hg to 102 psig) Danfoss DCS (MWA) 2018.10AI241186442033en-001002 DKRCI.PD.HS2.B5.02 12
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 2-6ProductsConstant pressure regulationwith external control pressurecombined with electrical wideopen1 ICS 3 Pilots1 nipple for external controlpressure1 CVP-L1 EVM1 coil –0.66 to 7 bar g(19.5 in. Hg to 102 psig)Example no. 2-7ProductsConstant pressure regulationwith electrical shut off combinedwith extern
The ICS valve will be fully closed if the pilot valve in P is fully closed and at least one of the valves in SI or SII is fully closed at the same time. The relation between the pilot valves in ports SI, SII and P is shown in the table on the next page. Pilot-operated servo valve, type ICS
Pilot-operated servo valve Type ICS ICS pilot-operated servo valves belong to the ICV (Industrial Control Valve) family. The valve comprises three main components: valve body, function module and top cover. ICS pilot-operated servo valves are pilot operated valves for regulating pressure, temperature and ON/OFF function in refrigeration systems.
4, 5 port pilot operated valve 4TB 5 port pilot operated valve (pneumatic valve) 4L2-4/LMFO 3, 4, 5 port pilot operated valve (pneumatic valve) 4KA/4KB 5 port pilot operated valve (pneumatic valve) 4F 5 port pilot operated valve (ISO conformed valve) PV5G/PV5/CMF 3 port direct acting valve (small pneumatic valve) 3MA0/3MB0
Servo solenoid valve, pilot operated Servo-distributeur, piloté Regelventil für Blockeinbau Cartridge-type servo solenoid valve Servo-distributeur en cartouche HRV: High Response Valve HRV – Regelventil NG 6 HRV – Servo solenoid valve NG 6 HRV – Servo-distributeur NG 6 Regelventil NG 6 Servo solenoid valve NG 6 Servo-distributeur NG 6
Data sheet Pilot-operated servo valve, type ICS Danfoss DCS MWA) 2016.01 DKRCI.PD.HS2.A9.22 520H8639 5 Function ICS 1 Pilot The ICS main valve is a pilot operated valve. The types of pilot valves used determine the function. The ICS main valve with pilot valve(s) controls refrigerant flow by modulation or on/off in
Technical leaflet Pilot operated main valves for regulating pressure and temperature, type PM Design, function PM1 The PM main valve is a pilot operated valve whose function is determined by the pilot valve used. The main valve with pilot valve(s) controls refrigerant flow by modulation or on/off in accordance with the pilot valve or main valve
Solenoid Controlled Pilot Operated Directional Valves Solenoid Controlled Pilot Operated Directional Valves These valves are composed of a solenoid operated pilot valve and a pilot operated slave valve. When a solenoid is energised the pilot valve directs the flow to move the spool of the slave valve, thus changing the direction of flow in the .
ICS 1 Pilot The ICS main valve is a pilot operated valve. The types of pilot valves used determine the function. The ICS main valve with pilot valve(s) controls refrigerant flow by modulation or on/off in accordance with the pilot valve and main valve status. The manual spindle can be used to open the valve plate.
Oct 06, 2010 · Servo - Preferably Spektrum . Choose correct servo horn adapter using servo horn chart and press onto servo. 3. After servo is centered, install servo horn on servo using the screw provided with your servo so that in the centered position the servo
