Solenoid Valves Flow Characteristics

Transcription

1 Solenoid Valves Flow haracteristics (ow to indicate flow characteristics). Indication of flow characteristics Indication of the flow characteristics in specifications for equipment such as solenoid valve, etc. is depending on Table (). Table () Indication of Flow haracteristics orresponding equipment quipment for pneumatics quipment for controlling process fluids Indication by international standard, b v Other indications S v v Standards conforming to ISO : IS : IS : quipment: IS,,,, SI/(FP)T..: I--: IS : quipment: IS,,. quipment for pneumatics. Indication according to the international standards () Standards conforming to ISO : : Pneumatic fluid poweromponents using compressible fluids Determination of flow-rate characteristics IS : : Pneumatic fluid poweromponents using compressible fluids ow to test flow rate characteristics () Definition of flow characteristics Flow rate characteristics are indicated as a result of a comparison between sonic conductance and critical ratio b. Sonic conductance : Values which divide the passing mass flow rate of an equipment in a choked flow condition by the product of the upstream absolute and the density in the standard condition. ritical ratio b : It is the ratio which will turn to the choke flow (downstream /upstream ) when it is smaller than this values. (critical ratio) hoked flow : It is the flow in which the upstream is higher than the downstream and where sonic speed in a certain part of an equipment is reached. aseous mass flow rate is in proportion to the upstream and not dependent on the downstream. (choked flow) Subsonic flow : Flow greater than the critical ratio Standard condition : ir in a temperature state of, absolute. MPa (= kpa = bar), relative humidity %. It is stipulated by adding the abbreviation (R) after the unit depicting air volume. (standard reference atmosphere) Standard conforming to: ISO : Pneumatic fluid powerstandard reference atmosphere, IS : : Pneumatic fluid powerstandard reference atmosphere () Formula of flow rate It can be indicated by the practical unit as following. When P +. b, choked flow P +. Q = x (P +.) () + t When P +. > b, subsonic flow P +. P +. b P +. Q = x (P +.) () b + t Q : ir flow rate [dm /min (R)], dm (ubic decimeter) of SI unit are also allowed to described by l (liter). dm = l. Front matter

2 Solenoid Valves Flow haracteristics Sonic conductance [dm /(s bar)] b ritical ratio [] P Upstream [MPa] P Downstream [MPa] t Temperature [ ] ote) Formula of subsonic flow is the elliptic analogous curve. Flow characteristics curve is indicated in the raph () For details, please use SM s nergy Saving Program xample) Obtain the air flow rate for P =. [MPa], P =. [MPa], t = [ ] when a solenoid valve is performed in = [dm /(s bar)] and b =.. ccording to formula, the maximum flow rate = x x (. +. x = [dm /min (R)] Pressure ratio = =.. +. ased on the raph (), it is going to be. if it is read by the ratio as. and the flow ratio to be b =.. ence, flow rate = Max. flow x flow ratio = x. = [dm /min (R)] Flow rate ratio b =... P quipment, b. P Q Pressure ratio (P +.) / (P +.) raph () Flow characteristics line () Test method y attaching a test equipment with the test circuit indicated in Fig. ( while maintaining to a certain amount which does not let the upstream go down below. MPa, measure the maximum flow to be saturated in the first place. ext, measure this flow rate at %, %, %, % and the upstream and downstream. nd then, obtain the sonic conductance from this maximum flow rate. esides that, substitute each data of others for the formula of subsonic flow in order to find b, then obtain the critical ratio b from that average. Pressure gauge or convertor Pressure control equipment ød d Thermometer d ød Differential gauge or differential converter ød Flow control valve ir supply Filter Shut off valve d d d d d Flow meter Pipe for measuring temperature quipment for test Pipe for measuring in the upstream side Pipe for measuring in the downstream side Fig. () Test circuit based on ISO, IS Front matter

3 Solenoid Valves Flow haracteristics. ffective area S () Standards conforming to IS : : Pneumatic fluid poweromponents using compressible fluids Determination of flow rate characteristics quipment standards: IS : port solenoid valve for pneumatics IS : port solenoid valve for pneumatics IS : port, port solenoid valve for pneumatics IS : Silencer for pneumatics IS : Fittings of flexible joint for pneumatics () Definition of flow characteristics ffective area S: is the cross-sectional area having an ideal throttle without friction deduced from the calculation of the changes inside an air tank or without reduced flow when discharging the compressed air in a choked flow, from an equipment attached to the air tank. This is the same concept representing the easy to run through as sonic conductance (effective area). () Formula of flow rate When P +.., choked flow P +. Q = x S (P +.) () + t When P +. >., subsonic flow P +. Q = x S (P +.) (P P) () + t onversion with sonic conductance : S =. x () Q :ir flow rate[dm /min(r)], dm (cubic decimeter) of SI unit is good to be described by l (liter), too. dm = l S : ffective area [mm ] P : Upstream [MPa] P : Downstream [MPa] t : Temperature [ ] ote) Formula for subsonic flow () is only applicable when the critical ratio b is the unknown equipment. In the formula by sonic conductance (), it is the same formula when b =.. () Test method y attaching the equipment for testing with the test circuit shown in Fig. (), discharge air into the atmosphere until the inside the air tank goes down to. MPa (. MPa) from an air tank filled with compressed air of a certain (. MPa) which does not go down below. MPa. t this time, measure the discharging time and the residual inside the air tank which had been left until it turned to be the normal values, and then determine the effective area S by using the following formula. The volume of air tank should be selected within the specified range by corresponding to the effective area of the equipment being tested. In the case of IS,,,,, the values are in parentheses and the coefficient of formula is.. V Ps +. S =. log () () t P +. T S : ffective area [mm ] V : ir tank capacity [dm ] t : Discharging time [s] Ps : Pressure inside air tank before discharging [MPa] P : Residual inside air tank after discharging [MPa] T : Temperature inside air tank before discharging [K] Pressure control equipment Thermometer ir supply Filter Shut off valve ir tank Pressure switch ontrol circuit Pressure gauge or convertor Timer (lock) Pressure recorder Solenoid valve Power supply quipment for test Rectifier tube in the upstream side Fig. () Test circuit based on IS Rectifier tube in the downstream side Front matter

4 Solenoid Valves Flow haracteristics. Flow coefficient v factor The United States Standard SI/(FP)T..:: Pneumatic fluid powerflow rating test procedure and reporting method for fixed orifice components defines the v factor of flow coefficient by the following formula which is based on the test conducted by the test circuit analogous to ISO. Q v = () P (P + Pa). T P Pressure drop between the static tapping ports [bar] P Pressure of the upstream tapping port [bar gauge] P Pressure of the downstream tapping port [bar gauge]:p = P P Q Flow rate [dm /s standard condition] Pa tmospheric [bar absolute] T Test conditions of the upstream absolute temperature [K] is < P + Pa =. ±. bar absolute, T = ± K,. bar P. bar. This is the same concept as effective area which ISO stipulates as being applicable only when the drop is smaller than the upstream and the compression of air does not become a problem.. quipment for process fluids ( Standards conforming to I--: : Industrial process control valves. Part : Flow capacity, Section Three-Test procedures IS : : Test method for the flow coefficient of a valve quipment standards: IS Regulator for water IS : Solenoid valve for steam IS : Solenoid valve for fuel oil () Definition of flow characteristics v factor: Value of the clean water flow rate represented by m /s which runs through a valve (equipment for test) when the difference is Pa. It is calculated using the following formula. ρ v = Q () P v Flow coefficient [m ] Q Flow rate [m /s] P Pressure difference [Pa] ρ Density of fluid [kg/m ] () Formula of flow rate It is described by the known unit. lso, the flow characteristics line shown in the raph (). In the case of liquid: P Q =. x v () Q Flow rate [l/min] v Flow coefficient [m ] P Pressure difference [MPa] Relative density [water = ] In the case of saturated aqueous vapor: Q =. x v P(P +. () Q Flow rate [m /s] v Flow coefficient [m ] P Pressure difference [Pa] P Relative density [MPa]: P = P P P Relative density [MPa] Front matter

5 Solenoid V lves Flow haracteristics onversion of flow coefficient: v = x Kv = x v () ere, Kv factor: Value of the clean water flow rate represented by the m /h which runs through the valve at to, when the difference is bar. v factor (Reference values): It is the figures representing the flow rate of clean water by US gal/min which runs through the valve at F, when the difference is lbf/in (psi). Values of pneumatic Kv are different from v because the testing method is different from each other. Saturated aqueous vapor flow rate Q [kg/h] (when v = x [m ]) x. P =.MPa P =.MPa P =.MPa Upstream P =.MPa P = MPa P =.MPa P =.MPa P =.MPa x Water flow rate Q [l /min] (When < when v = x [m ]) Pressure differential P [MPa] raph () Flow characteristics line xample Obtain the difference when water [l/min] runs through the solenoid valve with an v = x [m ]. Since Q = / =. [ /min], according to the raph (), if reading P when Q is., it will be. [MPa]. xample ) Obtain the flow rate of saturated aqueous vapor when P =. [MPa], P =. [MPa] with a solenoid valve with an v =. x [m ]. ccording to the raph (), if reading Q when P is. and P is., it is. [kg/h]. ence, the flow rate Q =. x. =. [kg/h]. Front matter

6 Solenoid Valves Flow haracteristics () Test method y attaching the equipment for testing with the test circuit shown in Fig. () and running water at to, measure the flow rate with a difference of. MPa. owever, the difference needs to be set with a large enough difference so that the Reynolds number does not go below a range of x. y substituting the measurement results for formula () to figure out v. Thermometer Test range Pressure tap quipment for test Pressure tap Throttle valve in the upstream side Flow meter d d Throttle valve in the downstream side d d Fig. () Test circuit based on I--, IS Front matter

7 Flow haracteristics ote) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to front matter pages to. For ir (Orifice size: ø mm, ø mm, ø mm, ø mm) Downstream of valve (P) MPa Minimum operating differential Upstream of valve P =. MPa Subsonic ritical Sonic ow to read the graph The sonic range to generate a flow rate of l/min (R) is P. MPa for a ø orifice (VXD-) and P. MPa for a ø orifice (VXD -)... VXD- VXD- VXD - VXD - VXD - VXD -,,,,,,,,,,,,,,,,,,,,,, Flow rate Q l/min (R) ø ø ø ø ø ø For ir (Orifice size: ø mm, ø mm, ø mm). Minimum operating differential (P +.) = ( to.) (P +.). Upstream of Downstream of valve (P) MPa valve P =. MPa. Subsonic ritical Sonic VXD VXD VXD,,,,,,,,,,,, ø ø ø Flow rate Q l/min (R) Front matter

8 Flow haracteristics For Water Flow rate Q l/min (R), VXD ø v = VXD ø v = VXD ø v = VXD- ø v =. VXD- ø v =. VXD- ø v =. VXD- ø v =. VXD ø v =. VXD ø v =. ow to read the graph When a water flow of l/min is generated, P. MPa for a ø orifice (VXD-), P. MPa for a ø orifice (VXD ), and P. MPa for a ø orifice (VXD ) Pressure differential P = (P P) MPa Front matter

9 pplicable Fluid heck List Pilot Operated Port Solenoid Valve Series VXD// ormally closed (..) Option Symbol and omponents Option symbol Standard type D L P material Material ody: Shading coil R ote ) PDM rass () or /u PDM R ote ) PDM Stainless steel/g PDM oil insulation type ote igh corrosion resistance, Oil-free Fluid ame and Option Fluid (pplication) pplicable valve austic soda (% ) as oil Silicon oil Steam system (Water for boiler) Steam system (ondensation) Perchloroethylene Water (Max. ) Option symbol and body material rass () or to ote ) to are and to are. ote ) The highest operating temperature of to is. ote ) Stainless steel/g is not available for valve sizes from to. ote ) onsult with SM for other than above fluids. D, ote ) ote ) Stainless steel to, P, P ormally open (.O.) Option Symbol and omponents Option symbol material ody: Shading coil Material Standard type R rass () or PDM ote ) /u D L P PDM R PDM PDM Stainless ote ) steel/g Front matter Inside bushing rod assembly PPS Stainless steel PPS Stainless steel oil insulation type ote igh corrosion resistance, Oil-free Fluid ame and Option Fluid (pplication) pplicable valve austic soda (% ) as oil Silicon oil Steam system (Water for boiler) Steam system (ondensation) Perchloroethylene Water (Max. ) Option symbol and body material ote ) ote ) rass () or Stainless steel to to ote ) to are and to are. ote ) The highest operating temperature of to is. ote ) Stainless steel/g is not available for valve sizes from to. ote ) onsult with SM for other than above fluids., P, P

10 lossary of Terms Pressure Terminology. Maximum operating differential The maximum differential (the difference between the inlet and outlet ) which is allowed for operation, with the valve closed. When the downstream is MPa, this becomes the maximum operating.. Minimum operating differential The minimum differential (differential between the inlet and the outlet ) required to keep the main valve fully opened. ote) If the differential is the minimum operating differential when the valve is closed, it may be below the minimum operating differential when the valve is open.. Maximum system The maximum that can be applied inside the pipelines (line ). (The differential of the solenoid valve unit must be less than the maximum operating differential.). Proof The which must be withstood without a drop in performance after returning to the operating range. (value under the prescribed conditions). Material R: : Others itrile rubber Fluoro rubber Trade names: Viton, Dai-el, etc. PDM: thylene propylene rubber PTF: Polytetrafluoroethylene resin Trade names: Teflon, Polyflon, etc. F: Perfluoroelastomer Trade names: Kalrez, hemraz. Oil-free treatment The degreasing and washing of wetted parts.. Passage symbol In the IS symbol ( ) I and OUT are in a blocked condition ( ), but actually in the case of reverse (OUT>I), there is a limit to the blocking. ( ) is used to indicate that blocking of reverse is not possible. lectrical Terminology. pparent power (V) Volt-ampere is the product of voltage (V) and current (). Power dissipation (W): For, W = V cosθ. For D, W = V. (ote) cosθ shows power factor. cosθ =.. Surge voltage high voltage which is momentarily generated in the shut-off unit by shutting off the power.. Degree of protection degree defined in the IS : Waterproof test of electric machinery/appliance and the degree of protection against the intrusion of solid foreign objects. IP: Dusttight, Low jetproof type Low jetproof type means that no water intrudes inside an equipment that could hinder from operating normally by means of discharging water for minutes in the prescribed manner. Take appropriate protection measures, since a device is not usable in an environment where a water drop is splashed. Front matter

11 Pilot Operated Port Solenoid Valve Series VXD// For Water, Oil, ir Single Unit Valve ormally closed (..) ormally open (.O.) Solenoid oil oil: lass, lass Rated Voltage V, V, V, V, V, V, V, VD, VD Material ody rass ()/, Stainless steel R,, PDM lectrical ntry rommet onduit DI terminal onduit terminal ody size () ody size (Flange) VXD VXD,,, VXD VXD VXD VXD VXD Standard Specifications Valve specifications Valve construction Withstand (MPa) ody material material nclosure nvironment (lass coil, with a full-wave rectifier) Rated voltage (lass coil/ coil) ote ) D (lass coil only) oil llowable voltage fluctuation specifications llowable (lass coil, with a full-wave rectifier) leakage (lass coil/ coil) ote ) voltage D (lass coil only) oil insulation type ote ) lectrical entry, rommet with surge (S) has a rating of IP. ote ) The (lass ) coil for the VXD comes with a full-wave rectifier. Pilot operated port diaphragm type. rass (), Stainless steel, R,, PDM Dusttight, Low jetproof (equivalent to IP) ote ) Location without corrosive or explosive gases V, V, V, V, V, V, V VD, VD ±% of rated voltage ±% or less of rated voltage ±% or less of rated voltage ±% or less of rated voltage lass, lass Solenoid oil Specifications D Specification VXD VXD / VXD / VXD / Power consumption (W)... Specification (lass coil) VXD VXD VXD Frequency (z) pparent power (V) Inrush nergized Temperature rise ( ) ote) Temperature rise ( ) ote) The (lass ) coil for the VXD comes with a full-wave rectifier. ote) The values are for an ambient temperature of and at the rated voltage. Specification (lass coil, with a full-wave rectifier) pparent power (V) Temperature rise ( ) ote) VXD VXD VXD. There is no difference in apparent power due to the inrush, energization, or frequency of the power, since the coil uses a rectifying circuit. Specification (lass coil) VXD VXD VXD Frequency (z) pparent power (V) Inrush nergized Temperature rise ( ) ote)

12 Pilot Operated Port Solenoid Valve Series VXD// For Water, Oil, ir ow to Order Solenoid oil ssembly Table () and Solenoid oil Type Select the coil type from to, and refer to ow to Order below. (with a fullwave rectifier) Voltage type D oil insulation type lass lass lass lass (Solenoid valve option) VXD VXD VXD VXD D, (xcept VXD /lass ) ote ) VX Series VXD VXD VXD Rated voltage ote ) V / z V / z V / z V / z VD VD V / z V / z V / z -rommet S- With grommet surge (il,,,,,, L) ote) ote ) The (lass ) coil for VXD comes with a full-wave rectifier. ote ) Refer to Table () for the available combinations. (D,,, P) il - onduit (il,,,,,, L) oil insulation type lass lass ote) ote) DI terminal and D are not available. Valve Symbol il (il,,,,,, L) Valve...O. lectrical entry Table () Rated Voltage / D D /lass (with a full-wave rectifier) Rated voltage VX R Series VXD VXD VXD Rated voltage ote ) Voltage symbol Voltage V V V V V V V V V With surge voltage suppressor V / z V / z V / z V / z V / z V / z V / z lectrical Option lass L Z S ote ) Refer to Table () for the available combinations. - rommet - onduit S With light With light With surge and surge voltage suppressor lass L With light D specification is not available. Valve Symbol il Z With light and surge voltage suppressor Option S, Z are not available since a surge is integrated into the /lass coil, as a standard. When changing coils, /D are not interchangeable with each other, and lass and coils are also not interchangeable with each other. (with a full-wave rectifier)/d are interchangeable with each other. Valve...O. lectrical entry T -With conduit terminal TS - With conduit terminal and surge TL - With conduit terminal and light TZ - With conduit terminal, surge D -DI DS - DI with surge DL - DI with light DZ - DI with surge DO- For DI (without connector) Refer to Table () for the available combinations between each electrical option and rated voltage. VX Rated voltage VD VD Z onnector T -With conduit terminal TL - With conduit terminal D -DI DL - DI with light DO- For DI (without connector) onnector Refer to Table () for the available combinations between each electrical option and rated voltage. surge is inegrated into the /lass coil, as a standard ame plate part no. Z-T-VX Valve model nter by referring to ow to Order. lip part no. (For..) For VXD VX- For VXD: VX- For VXD: VX- lip ame plate Solenoid coil lip part no. (For.O.) For VXD TW- For VXD: TW- For VXD: TW-

13 Series VXD// For Water /Valve Specifications ormally closed (..) Passage symbol Flange () () () () () Orifice size (mmø) VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- Min. operating.. Max. operating.... D.... Flow characteristics v x - m v converted ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system. Max. system (MPa). ote) Weight (g) ormally open (.O.) Passage symbol Flange () () () () Orifice size (mmø) VXD- VXD- VXD- VXD- VXD- VXD- VXD- Min. operating.. Max. operating, D. Flow characteristics v x - m v converted... ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system. Max. system (MPa). ote) Weight (g) Operating Fluid and mbient Temperature Tightness of Valve (Leakage Rate) Power source D Operating fluid temperature ( ) Solenoid valve option il,,, P to to to mbient temperature ( ) to to ote ) Since the /lass coil (with a full-wave rectifier) uses a rectifying circuit, the fluid and ambient temperature are the same as the D specifications. ote ) With no freezing material R,, PDM Leakage rate (With water ) to to. cm /min or less cm /min or less

14 Pilot Operated Port Solenoid Valve Series VXD// For Water/Single Unit D/ (except VXD /lass ) VXD /lass coil (with a full-wave rectifier) VXD The (lass ) coil for VXD comes with a full-wave rectifier. Refer to Table () shown below for availability. Valve/ody configuration.. / Single unit.o. / Single unit Solenoid valve option Refer to Table () shown below for availability. Option symbol il P L il Z Orifice size Refer to Table () shown below for availability. Suffix Oil-free V / z V / z V / z V / z VD ow to Order Refer to Table () shown below for availability. type il T F Refer to Table () shown below for availability. material R PDM Rc PTF PT Refer to page for ordering coil only. Table () Port/Orifice Size ormally closed (..) Solenoid valve () ( ) ( ) ( ) Port no. ( ) () () () Flange ormally open (.O.) Solenoid valve () Port no. () Flange VXD VXD ( ) ( ) ( ) VXD VXD () () Table () Solenoid Valve Option ody material/ Shading coil material rass (), u Stainless steel, g rass (), u Stainless steel, g Stainless steel, g oil insulation type Rated voltage VD V / z V / z V / z VXD () () VXD () () ( mmø) ( mmø) ote eated water ( only) igh corrosion resistance specification, Oil-free ( mmø) ( mmø) R -rommet S- With grommet surge T -With conduit terminal TS - With conduit terminal and surge TL - With conduit terminal TZ - With conduit terminal, surge ( mmø) Orifice symbol ( mmø) Orifice symbol ( mmø) Table () Rated Voltage lectrical Option Rated voltage lass S L Z S / Voltage With surge Voltage With With light and voltage surge voltage D symbol suppressor light suppressor V V V V V V V D V V racket il one With bracket racket is not removable. With a full-wave rectifier, surge lectrical entry - onduit D -DI onnector DS - DI with surge voltage suppressor DL - DI with light DZ - DI with surge DO- For DI (without connector) DI type is available with class insulation only. Refer to Table () for the available combinations between each electrical option (S, L, Z) and rated voltage. Option S, Z are not available since a surge is integrated into the /lass coil, as a standard. ( mmø) ( mmø) ( mmø) ( mmø) ( mmø) ( mmø) With surge voltage suppressor ody Material lass L Z With With light and surge voltage light suppressor D specification is not available. ote) Option S, Z are not available as surge is integrated into the /lass coil, as a standard. ody rass (), Stainless steel Material rass (), Stainless steel R PDM R PDM For Water For Oil For ir

15 Series VXD// For Oil /Valve Specifications ormally closed (..) Passage symbol Flange () () () () () Orifice size (mmø) VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- VXD- Min. operating.. Max. operating D Flow characteristics v x - m v converted ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system. Max. system (MPa). ote) Weight (g) ormally open (.O.) Passage symbol Flange () () () () Orifice size (mmø) VXD- VXD- VXD- VXD- VXD- VXD- VXD- Min. operating.. Max. operating, D. Flow characteristics v x - m v converted... ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system. Max. system (MPa). ote) Weight (g) Operating Fluid and mbient Temperature Tightness of Valve (Leakage Rate) Power source D Operating fluid temperature ( ) Solenoid valve option, D, to to to mbient temperature ( ) to to ote ) Dynamic viscosity: mm /s or less ote ) Since the /lass coil (with a full-wave rectifier) uses a rectifying circuit, the fluid and ambient temperature are the same as the D specifications. material Leakage rate (With oil ) to to. cm /min or less cm /min or less

16 Pilot Operated Port Solenoid Valve Series VXD// For Oil/Single Unit D/ (except VXD /lass ) /lass coil (with a full-wave rectifier) The (lass ) coil for VXD comes with a full-wave rectifier. Refer to Table () shown below for availability. Refer to Table () shown below for availability. Valve/ody configuration.. / Single unit.o. / Single unit Solenoid valve option Refer to Table () shown below for availability. il Z Suffix Oil-free V / z V / z V / z V / z VD Orifice size Refer to Table () shown below for availability. type il T F Rc PTF PT Rated voltage VD V / z V / z V / z Refer to Table () shown below for availability. Refer to page for ordering coil only. Table () Port/Orifice Size ormally closed (..) Solenoid valve () ( ) ( ) ( ) Port no. ( ) () () () Flange ormally open (.O.) Solenoid valve () Port no. () Table () Solenoid Valve Option Option symbol D Flange material VXD VXD ( ) ( ) ( ) VXD VXD VXD VXD () () ody material/ Shading coil material rass (), u Stainless steel, g rass (), u Stainless steel, g VXD () () VXD () () ( mmø) ( mmø) oil insulation type ow to Order ( mmø) ( mmø) -rommet S- With grommet surge T -With conduit terminal TS - With conduit terminal and surge TL - With conduit terminal TZ - With conduit terminal, surge ( mmø) Orifice symbol ( mmø) Orifice symbol ( mmø) R ( mmø) ( mmø) ( mmø) racket il one With bracket racket is not removable. With a full-wave rectifier, surge lectrical entry - onduit D -DI onnector DS - DI with surge voltage suppressor DL - DI with light DZ - DI with surge DO- For DI (without connector) DI type is available with class insulation only. Refer to Table () for the available combinations between each electrical option (S, L, Z) and rated voltage. Option S, Z are not available since a surge is integrated into the /lass coil, as a standard. ( mmø) ( mmø) ( mmø) ody Material ody rass (), Stainless steel Material R PDM Table () Rated Voltage lectrical Option Rated voltage lass lass S L Z S L Z / Voltage With surge Voltage With With light and With surge With With light and voltage surge voltage voltage surge voltage D symbol suppressor light suppressor suppressor light suppressor V V V V V V V D V D specification is not V available. ote) Option S, Z are not available as surge is integrated into the /lass coil, as a standard. rass (), Stainless steel R PDM For Water For Oil For ir

17 Series VXD// For ir (Inert gas) /Valve Specifications ormally closed (..) Passage symbol () () () () Orifice size (mmø) VXD- VXD- VXD- VXD- VXD- VXD- Min. operating. Max. operating D Flow characteristics b.. v Max. system (MPa). ote) Weight (g) Flange () Orifice size (mmø) VXD- VXD- VXD- VXD- Min. operating.. Max. operating, D ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system.. Flow characteristics ffective area (mm ) Max. system (MPa). ote) Weight (g) ormally open (.O.) Passage symbol () () () Orifice size (mmø) VXD- VXD- VXD- Min. operating. Max. operating, D.... Flow characteristics b.. v... Max. system (MPa). ote) Weight (g) Flange () Orifice size (mmø) VXD- VXD- VXD- VXD- Min. operating.. Max. operating, D ote) Weight of grommet type. dd g for conduit, g for DI terminal, and g for terminal type respectively. Refer to lossary of Terms on front matter, for details on the max. operating differential and the max. system.. Flow characteristics ffective area (mm ) Max. system (MPa). ote) Weight (g) Operating Fluid and mbient Temperature Tightness of Valve (Leakage Rate) Power source D Operating fluid temperature ( ) Solenoid valve option il, ote) to to ote) Dew point temperature: or less mbient temperature ( ) to to material R, Leakage rate (ir) to to cm /min or less cm /min or less

18 Pilot Operated Port Solenoid Valve Series VXD// For ir/single Unit /lass coil (with a full-wave rectifier) The (lass ) coil for VXD comes with a full-wave rectifier. Refer to Table () shown below for availability. Refer to Table () shown below for availability. Valve/ody configuration.. / Single unit.o. / Single unit Solenoid valve option Refer to Table () shown below for availability. il Z Suffix Oil-free V / z V / z V / z V / z VD Orifice size Refer to Table () shown below for availability. type il T F Refer to Table () shown below for availability. Rc PTF PT Refer to page for ordering coil only. Table () Port/Orifice Size ormally closed (..) Solenoid valve () VXD VXD ( ) ( ) ( ) Port no. ( ) () () () Flange ormally open (.O.) Solenoid valve () Port no. () D VXD VXD Flange VXD ( ) ( ) ( ) VXD () () Table () Solenoid Valve Option Option symbol il material R ody material/ Shading coil material rass (), u Stainless steel, g Rated voltage VD V / z V / z V / z VXD () () VXD () () oil insulation type ow to Order (Single Unit) ( mmø) ( mmø) ote ( mmø) ( mmø) -rommet S- With grommet surge T -With conduit terminal TS - With conduit terminal and surge TL - With conduit terminal TZ - With conduit terminal, surge ( mmø) Orifice symbol ( mmø) Orifice symbol ( mmø) R ( mmø) ( mmø) ( mmø) racket il one With bracket racket is not removable. With a full-wave rectifier, surge lectrical entry - onduit D -DI onnector DS - DI with surge voltage suppressor DL - DI with light DZ - DI with surge DO- For DI (without connector) DI type is available with class insulation only. Refer to Table () for the available combinations between each electrical option (S, L, Z) and rated voltage. Option S, Z are not available since a surge is integrated into the /lass coil, as a standard. ( mmø) ( mmø) ( mmø) ody rass (), Stainless steel Material Table () Rated Voltage lectrical Option Rated voltage lass S L Z S / Voltage With surge Voltage With With light and voltage surge voltage D symbol suppressor light suppressor V V V V V V V D V V ody rass (), Stainless steel R Material lass L R With surge With With light and voltage surge voltage suppressor light suppressor D specification is not available. ote) Option S, Z are not available as surge is integrated into the /lass coil, as a standard. Z For Water For Oil For ir

19 Series VXD// onstruction ormally closed (..) ody material rass () ( or more: ), Stainless steel VXD () OUT P P I!!! o i t! e u w y q w y u q VXD// ( to )!!! i t e o! r u y q VXD// ( to ) Operation <Valve opened> When the coil! is energized, the armature assembly o is attracted into the core of the tube assembly i and the pilot valve opens. Then the in the action chamber falls to open the main valve. <Valve closed> When the coil! is not energized, the pilot valve is closed and the in the action chamber rises and the main valve closes. omponent Parts o. Description Size ody onnet ut O-ring O-ring Diaphragm assembly Valve spring Tube assembly rmature assembly Reurn spring Solenoid coil ame plate lip to to to to to to to to to to to to to to to to to w P P I OUT!!! o i e t! Material Standard Option rass () Stainless steel rass () Stainless steel rass () R R Stainless steel, R Stainless steel, rass (), R Stainless steel Stainless steel, g Stainless steel, u Stainless steel, PPS, R rass (), i plated, PDM, PDM Stainless steel, Stainless steel, PDM Stainless steel,, PDM Stainless steel, PPS, Stainless steel, PDM Stainless steel lass molded lass molded luminum SK ormally open (.O.) ody material: rass () ( or more: ), Stainless steel VXD// ( to ) w y u q VXD// ( to )!!! o! w i t e!! r u y q!!! o!! i e t! Operation <Valve opened> When the coil! is energized, the opened pilot closes, the in action chamber rises and the main valve closes. <Valve closed> When the coil! is not energized, the closed pilot valve opens, the in action chamber drops and the main valve opens. omponent Parts o. ody Description onnet ut O-ring O-ring Diaphragm assembly Valve spring Tube assembly rmature assembly Reurn spring Solenoid coil Push rod assembly ame plate lip over Size to to to to to to to to to to to to to to to to to to to Material Standard Option rass () Stainless steel rass () Stainless steel rass () R R Stainless steel, R Stainless steel, R The materials in parentheses are the seal materials. rass (), i plated, PDM, PDM Stainless steel Stainless steel, g Stainless steel, u Stainless steel Stainless steel lass molded lass molded R, PPS, Stainless steel, PDM, Stainless steel luminum SK Stainless steel Stainless steel, Stainless steel, PDM Stainless steel,, PDM

20 Pilot Operated Port Solenoid Valve Series VXD// For Water, Oil, ir Dimensions ormally closed (..): VXD rommet: onduit: () (). I pprox. () (). I pprox. / (.) (.) () D racket OUT I OUT I (.) (.) (.) () () (.) x Rc /, /, / F () racket x Rc /, /, / () F DI terminal: D onduit terminal: T I able ø to ø. (.) OUT (.) () racket. () () I. / F () (.) (.) OUT () racket (.) () () I I / F () (.) x Rc /, /, / x Rc /, /, / VXD- -M x (mm) ormally closed VXD P /, / / D.. F rommet I.. lectrical entry (D, /lass coil) onduit DI terminal onduit terminal I I I ormally closed VXD rommet I oil with a full-wave rectifier (electrical option R ) lectrical entry (/lass coil) onduit DI terminal onduit terminal I I I

21 Series VXD// Dimensions ormally closed (..): VXD// ormally open (.O.): VXD// rommet: onduit: M pprox. Q L pprox. Q L / OUT I f ø. e d K a b F D -P onduit terminal: T (Q) L DI terminal: D (Q) L () / / able ø to ø (R) R P ormally closed ormally open Rc VXD VXD /, / VXD VXD / VXD VXD denotes the value for.o. ormally closed VXD VXD VXD ormally open VXD VXD VXD P Rc /, / / D F K L M a (.). () (.) b d e.. racket mounting (mm) f..... ormally closed VXD VXD VXD... ormally open VXD VXD VXD lectrical entry (D, ) (mm) rommet onduit DI terminal onduit terminal Q Q Q R Q R rommet onduit DI terminal onduit terminal Q. Q.... Q... R.... Q... R.... oil with a full-wave rectifier (electrical option R ) lectrical entry (/lass coil) (mm)

22 Pilot Operated Port Solenoid Valve Series VXD// For Water, Oil, ir Dimensions ormally closed (..): VXD// ormally open (.O.): VXD// rommet: K pprox. I ø D OUT M øf (P..D) L ø -ø onduit: DI terminal D pprox. () M / M () / able ø to ø onduit terminal T (Q) () M / ormally closed ormally open VXD VXD VXD VXD VXD VXD Q denotes the value for.o. pplicable flange... () (.). (.).. ormally closed ormally open M M M Q VXD VXD... VXD VXD VXD VXD... ) denotes the value for.o. oil with a full-wave rectifier (electrical option R ) lectrical entry (D, ) D F K L. lectrical entry (/lass coil) (mm) rommet onduit DI terminal onduit terminal M. Q.. (mm) rommet onduit DI terminal onduit terminal M M M Q M Q