Pilot-operated Servo Valve, Type ICS - Sudak
Data sheetPilot-operated servo valveType ICSICS pilot-operated servo valves belong to the ICV(Industrial Control Valve) family.The valve comprises three main components: valvebody, function module and top cover.ICS pilot-operated servo valves are pilot operatedvalves for regulating pressure, temperature andON/OFF function in refrigeration systems. ICS valvesare designed for low and high-pressure refrigerants.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 refrigeration applicationsfor a maximum working pressure of 52 bar g /754 psi g. Applicable to HCFC, HFC, R717 (Ammonia) andR744 (CO2). Direct coupled connections. Connection types include butt weld, socket weld,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 measure valveinlet pressure. The top cover can be rotated into any possibleposition without affecting the operation of thevalve. Classification: DNV, CRN, BV, EAC etc.To get an updated list of certification on theproducts please contact your local Danfoss SalesCompany.AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 1
Data sheet Pilot-operated servo valve, type ICSContentsPageFeatures1Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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-US1003 DKRCI.PD.HS2.B5.22 2
Data sheet Pilot-operated servo valve, type ICSDesignICS valves are designed as pilot operated valvesrequiring minimal pressure differential to open. Ifthe pressure difference is 0 bar/0 psi, the ICS valvewill be closed. If the pressure difference is 0.2 bar/ 3 psi or more, the ICS valve will be fully open. Atpressure differences between 0.07 bar /1 psi 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 or threepilot 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. This allowsdifferent combinations of pilot valves to be used,thus providing numerous variations in controlfunctions.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 (1 1/4 - 2 ½ 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 to providegood corrosion protection.IIIII Pressure rangeThe valve is designed for:Max. working pressure: 52 bar g / 754 psigOpening 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 psiAI241186442033en-US1003 DKRCI.PD.HS2.B5.22 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-US1003 DKRCI.PD.HS2.B5.22 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-US1003 DKRCI.PD.HS2.B5.22 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 open thevalve 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) andcover (2) through the individual pilot valves andonto the top of the servo piston (3b).The opening degree of the main valve isdetermined by the pressure difference (differentialpressure) between pressure p2, which acts on topof the servo piston (3b), and pressure p3, which actson the underside of the servo piston.The degree of opening of the individual pilotvalves determines the magnitude of pressure p2and thus the degree of opening of the main valve.The equalisation hole (3f ) in the servo piston (3b)ensures that pressure p2 is balanced in accordancewith the degree of opening of the pilot valve.If this pressure difference is 0, the main valve will befully closed.If the pressure difference is 0.2 bar / 3 psi or greater,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 opening willbe 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) andthe function module. The opening degree of theICS valve is therefore controlled by the applicationof P2 pressure acting on top of the servo piston,which is equal to or greater than valve outletpressure (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 screwed-inpilot valve or external pilot connection. The degreeof opening of the main valve will be in accordancewith the control status of the pilot valve or externalpilot 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 main valveis proportional to the degree of opening of the pilotvalve.The ICS 3 pilot version can be fitted with one, two,or three pilot valves so that up to three regulatingfunctions are possible. If the external pilotconnection is used, more functions can be added.AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 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 be fullyclosed if just one of the series-connected pilotvalves is closed. The main valve can only open ifboth pilot valves are open at the same time. The pilot valve fitted in port P is connected inparallel to the pilot valves in ports SI and SII.required, ports SI, SII or P can be fitted with a nipplefor the connection of external pilot pressure. Thisapplies to all ICS versions.The ICS valve will be fully open if the pilot valve in Pis fully open, irrespective of the degree of openingof pilot valves SI and SII.The ICS valve will be fully closed if the pilot valve inP is fully closed and at least one of the valves in SIor SII is fully closed at the same time. The relationbetween the pilot valves in ports SI, SII and P isshown in the table on the next page.Depending on the function of the pilot valves, theICS regulating characteristic becomes: on / off proportional integral or cascade.If the ICS is not fitted with three pilot valves, theunused port(s) must be sealed with a blankingplug. If the blanking plug is fitted as an assembledunit, A B, the channels from the specific port willbe closed. (See illustration below)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 valve is notto be a function of the main valve inlet pressure,or if more than three regulating functions arePilot valve osedClosedICS main valves are therefore especially suitable forall forms of temperature and pressure regulatingsystems.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 of configurationexamples can be found. These are only forexplanatory purpose. However, by using theliterature regarding pilot valves these examples areeasier to comprehend.Example (ICS with 3 pilot losedOpenOpenBlanking plug A B Danfoss DCS (mwa) 2018.10ICS valveSIThe 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 lines mustbe mounted in a type CVH housing.Blanking plug AAI241186442033en-US1003 DKRCI.PD.HS2.B5.22 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 coverMaterialLow temperature steelLow temperature steelFunction module(assembled)o-ringo-ringWasher plateCylinderPistonValve plateSpringConeGasketBoltsPlugGasketManual operating spindlePlugGasketCloroprene (Neoprene)Cloroprene (Neoprene)SteelSteelSteelPTFESteelSteelFiber, non-asbestosStainless steelSteelAluminiumSteelSteelAluminium Danfoss DCS (mwa) 2018.10ScrewM12 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 1054AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 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-US1003 DKRCI.PD.HS2.B5.22 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: A CVP-L (-0.66 – 7 bar g)(19.5 in. Hg to 102 psig) CVP-M 4 – 28 bar g /58 – 406 psig CVP-H 25 – 52 bar g/ 363 – 754 psigExample no. 1-2ProductsProductsDifferential pressure regulation1 ICS 1 Pilot1 CVPP-L/M1 ICS 3 Pilots1 CVPP-L/M2 Blanking plugsSI: A BSII: A CVPP-L (0.66 – 7 bar g)(19.5 in. Hg to 102 psig) CVPP-M 4 – 28 bar g /58 – 406 psigExample 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 Danfoss DCS (mwa) 2018.10AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 10
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 1-6ProductsProductsCrankcase pressure regulation.(Max. suction pressure regulation)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 – 8 bar g(19.5 in. Hg to 116 psig) Danfoss DCS (mwa) 2018.10CVEDanfoss27H475 -0.45 – 7 bar g(13.3 in. Hg to 102 psig)AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 11
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 2-1ProductsConstant pressure regulationcombined with electrical shut off -0.66 – 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 wide open1 ICS 3 Pilots1 blanking plug (A)1 CVP-L1 EVM -0.66 – 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 – 7 bar g(19.5 in. Hg to 102 psig)Example no. 2-4 ProductsConstant pressure regulation withchange-over between two presetevaporating pressures1 ICS 3 Pilots2 CVP-L1 EVM1 coil -0.66 – 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 – 7 bar g(19.5 in. Hg to 102 psig) Danfoss DCS (mwa) 2018.10AI241186442033en-US1003 DKRCI.PD.HS2.B5.22 12
Data sheet Pilot-operated servo valve, type ICSConfiguration examples (continued)Example no. 2-6ProductsConstant pressure regulation withexternal control pressure combinedwith electrical wide open -0.66 – 7 bar g(19.5 in. Hg to 102 psig)1 ICS 3 Pilots1 nipple for external controlpressure1 CVP-L1 EVM1 coilExample no. 2-7ProductsConstant pressure regulation withelectrical shut off combined withexternal control pressure -0.66 – 7 bar
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.
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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
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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
API RP 505 «API RP 505 « Recommended Practice for classification of locations for ElectricalRecommended Practice for classification of locations for Electrical Installations at Petroleum facilities classified as Class I, zone 0, zone1, zone2 » Foreword states : « API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure the accuracy and .
