Pilot Operated/Zero Pressure Differential Operation

Transcription

1 ilot Operated/Zero ressure ifferential Operation 2 ort Solenoid Valve Series Z Change of valve style from.c. to.o. is simple. xcellent maintainability Separation of movable iron core and diaphragm valve permits easy disassembly/reassembly. Low power consumption, long life, and high reliability type molded coil Z22 7.5/6W (50/z C) Z23 11/9.5W (50/z C) iaphragm Strong against dust and water scale in fluid. Compact, light, and large valve capacity Wide variations permit use of almost all types of fluid. I Zero pressure differential operation Usable under conditions of vacuum 101.2ka to 1Ma (C, water/air). When power is not supplied Right after power is supplied (ilot valve opens) When power is being supplied (Main valve opens.) V VW Fluid from the I side goes through the supply orifice and fills the pressure action chamber. The main valve is kept closed by the force pushing down the valve and the reaction force of the return spring. When power is supplied to the coil, the armature begins to be attracted, and the pilot orifice opens. The fluid filled in the pressure action chamber flows through the pilot orifice to the side. Since the fluid is discharged from the pilot orifice, the pressure in the pressure action chamber decreases. The force pushing down the valve weakens, and the pressure pushing up the valve over-comes the said force. Thus the main valve opens. When the I side has no pressure, or when the pressure is very low,the reaction force of the lift spring opens the main valve

2 ow to Order 2230 ort size 02 ( 1 4 ) ( 3 8 ) ( 1 2 ) ( 3 4 ) ( 1 ) Thread Rc(T) T TF F G(F) T lectrical option S L Z Without light/surge voltage suppressor With surge voltage suppressor With light With light voltage suppressor See table below for applications..c. ormally closed Z Q.O. ormally open Z Q rotective class class I (Mark: ) al solenoid valve Standard. ort size ( 1 4 ) ( 3 8 ) ( 1 2 ) ( 3 4 ) ( 1 ) For special nonstandard fluid, see the "applicable fluid check list" and select an option code. lectrical entry G C T O Grommet Conduit Conduit terminal I terminal (With connector) I terminal (Without connector) See table below for applications. Rated voltage 1** 100V C 50/z 2** 200V C 50/z 3** 110V C 50/z 4** 220V C 50/z 5 24V C 6 12V C 7** 2V C 50/z 8** 48V C 50/z 9** Other (less than 2V) Order Made See Table below for applications in type only available. Contact SMC for other voltages (9) Fluid Standard specifications (1) ir (general, dry) ir (dry) (T) Vacuum (up to 1Torr) igh temp, water (, ) Turbine oil, Carbon dioxide gas (CO2), rgon, helium (F) itrogen gas (2) Freon 11, 113, 114 (Others) ote 1) See the "pplicable fluid check list" on p for special nonstandard fluid and details of optional specifications. Fluid and mbient Temperature Temp. conditions Max. Min. ower supply C C C, C Water (Standard) 1 Fluid temp. C ir Oil igh temp. water (Standard) (Standard) (...) (1) 5 (2) ote 1) ew point is below 10 C ote 2) elow 50cSt ote 3) The parenthesized... represent option codes. (3) (3) igh temp. oil (.) mbient temp C 10 Table q Rated voltage-lectrical entry-lectrical option Insulation lectrical entry lectrical option 1 (100V) 2 (200V) 3 (110V) C 4 (220V) 7 (2V) 8 (48V) 5 (24V) C 6 (12V) Class G C, T S (1) S L, Z ote 1) The surge voltage suppressor is attached in the middle of a lead wire Caution Refer to p.0-33 for Safety Instructions and p.0-37 to 0- for common precautions.

3 .C. ormally closed /Valve Specifications ort size 1 4 Orifice dia. (mmø) 10 Flow rate coefficient ffective area l/min (mm 2 ) 34 Z Min oper. press. diff. (Ma) Max. operating press. diff. (Ma) Water ir Oil C C C C C C Max. system pressure (Ma) (1) Weight (g) Z Z Z , Z ,480 Symbol I ote 1) Values for the grommet style. dd 10g for the conduit style, 30g for the I connector style, g for the terminal style. See the "Terminology on p for details of max. operating pressure difference and max. system pressure. Solenoid Specifications Z22 Z23 ower supply C C C C Frequency pparent power V z Inrush olding 50 (53) 18 51(44) ower consumption W (olding) Temp rise C (Rated voltage) ote) The return voltage is 20% or more of the rated voltage for C and 2% or more for C. The allowable voltage fluctuation rate is ±10% of the rated value for both C and C. When the ambient temperature is 20 C ±5 C and rated voltage is applied. Coil change from C to C or C to C is impossible because the iron core shapes are different. The apparent power in the parenthesis is for Z2230..O. ormally open /Valve Specifications Orifice mm Flow rate coefficient ort dia. ffective area size l/min (mmø) (mm 2 ) Z Z Min oper. press. diff. (Ma) Max. operating press. diff. (Ma) Water ir Oil C C C C C C Max. system pressure (Ma) (1) Weight (g) 0 0 V VW Z Z , Z ,550 Symbol I ote 1) Values for the grommet style. dd 10g for the conduit style, 30g for the I connector style, and g for the terminal style. See the "Terminology on p for details of max. operating pressure difference and max. system pressure. Solenoid Specifications Z22 Z23 ower supply C C C C Frequency pparent power V z Inrush olding 50 66() 20 57(51) ower consumption W (olding) Temp rise C (Rated voltage) ote) The return voltage is 20% or more of the rated voltage for C and 5% or more for C. The allowable voltage fluctuation rate is ±10% of the rated voltage value for both C and C. When the ambient temperature is 20 C ±5 C and rated voltage is applied. Coil change from C to C or C to C is impossible because the iron core shapes are different. The apparent power in the parenthesis is for Z

4 Flow Characteristics ir ow to Read Chart The pressure in the sonic region for the flow rate of 00l/min (R) is 1 4.7Ma for the orifice of 15 dia. (Z ) and 1 2.3Ma for the orifice of 20 dia. (Z ). ow to Calculate flow rate/ir q In subsonic region: =(1 to )( ) Formula with Cv factor Q=73.4. Cv. ( )... l/min (R) Formula with effective orifice Q= S. ( )... l/min (R) w In sonic region = > ( ) Formula with Cv factor Q=12.8. Cv. ( )... l/min (R) Formula with effective orifice Q= S. ( )... l/min (R) Water ow to Read Chart The pressure difference for the flow rate of 25l/min. is 0.05Ma for the orifice orifice of ø10 dia. (Z ) ow to Calculate Flow Rate/Water Formula with Cv factor Q=14.2. Cv l/min Formula with effective orifice (Smm 2 ) Q=0.8. S l/min Q : Flow rate (ir l/min), (Steam kg/h), (Water l/min) : ressure difference (1-2) 1 : Upstream pressure (kgf/cm 2 ) 2 : ownstream pressure (kgf/cm 2 ) θ : ir temperature ( C) S : ffective orifice (mm 2 ) Cv : Cv factor (/)

5 pplicable Fluid Check List.C. ormally closed See p for model and specifications. code and components code Seal material Coil insulation Main body, shading coil material Standard R rass or C6, copper F G R L, silver rass or C6, copper T R X ote 1) The option code with " " stands for non-lube treatment. Suffix " X21" should be added to the parts number of other options for non-lube treatment. ote 2) The option "T/X" has a long life iron core, but water is not applicable. Fluid name and options Fluid (application) code and body material rass or C6 rgon F L rgon (long life) X thyl alcohol F, L, thylene glycol Caustic sode (25% = > ) ir (dry) T Light oil Silicon oil eavy oil (up to C) eavy oil (up to 100 C) Steam system (boiler water) G, Steam system (condensate) Insulation oil aphtha arachloroetylene rake oil Water (up to 99 C),,.O. ormally open See p for model and specifications. code and components code Standard F G L T X Seal material R R R Coil insulation Fluid name and options Main body, shading coil material rass or C6, copper Stainless steel, silver rass or C6, copper older material (In core ass'y) olyacetal olyacetal olyacetal ote 1) The option code with " " stands for non-lube treatment. Suffix " X21" should be added to the parts number of other options for non-lube treatment. ote 2) The option "T/X" has a long life iron core, but water is not applicable. Fluid (application) code and body material rass or C6 rgon F L Caustic soda (25% = > ) ir (dry) T Light oil Silicon oil eavy oil (up to C) eavy oil (up to 100 C) Steam system (boiler water) G, Steam system (condensate) Insulation oil arachloroetylene rake oil Water (up to 99 C), V VW Selection procedures q Selection of port size w Selection of material according to the operating temperature and type of fluid e Selection of power voltage and electrical entry.c. ormally open ormally.o. closed Coil: Class Valve Solenoid coil Rated voltage C (I type only available) Standard 100V, 200V 48V, 110V, 220V, 2V C Standard 24V 12V I I lectrical entry Grommet Conduit I connector Conduit terminal Material ody Seal rass/c6, SUS R,, ort size Orifice dia. (mmø) Z Z Z Z

6 imensions Grommet: G.C. ormally closed: Z2230, 22, 2350, 23.O. ormally open: Z2232, 2242, 2352, 2362.C..O. Z2230 Z2232 Z22 Z2242 Z2350 Z2352 Z23 Z2362 ort size M 1 4, C F K C. L L O Q R S T U V W X Y

7 Conduit: C.C. ormally closed.o. ormally open.c..o. Z2230 Z2232 Z22 Z2242 Z2350 Z2352 Z23 Z2362 K C O I connector:.c. ormally closed.o. ormally open V VW.C..O. Z2230 Z2232 Z22 Z2242 Z2350 Z2352 Z23 Z2362 K C O Conduit Terminal: T.C. ormally closed.o. ormally open.c..o. Z2230 Z2232 Z22 Z2242 Z2350 Z2352 Z23 Z2362 K.C O

8 Construction.C. ormally closed.o. ormally open Component arts o. q w e escription ody onnet O ring Standard rass/c6 rass R r iaphragm assembly, R t Core ass'y, Copper Material /, /,, Silver o. q escription rmature ass'y Material Standard, R, /, w e r t older ass'y Return spring Coil ass'y Colour OM, R Class, molded, /, Class, molded Coil ssembly o TZ 01 Coil Combination Code Grommet Code Insulation G GS G Coil combination code (See the table below.) Solenoid o. o. pplicable valve model 002 Z Z23 Class With surge voltage suppressor Class Conduit Code Insulation C CT CTS CTL CTZ Q Rated voltage 01* 100V C 50/z 02* 200V C 50/z 03* 110V C 50/z 04* 220V C 50/z 05 24V C 06 12V C 07* 2V C 50/z Class 08* 48V C 50/z 13* 24V C 50/z 23* 4V C 50/z 51 6V C 53* 48V C 55* 100V C 56* 110V C ote 1) The voltage codes of 01 to 08 when the suffix "0" is removed, are the same as the solenoid valve model codes. in type only available With terminal With terminal and surge suppressor With terminal and light With terminal and light surge suppressor C CT CTS CTL CTZ Class With terminal With terminal and surge suppressor With terminal and light With terminal and light surge suppressor pplicable voltage for electrical option ower supply Voltage code C C 06 Surge suppressor I connector Code Insulation T TS TL TZ Class Light With connector With connector and surge suppressor With connector and light With connector and light surge suppressor

9 etail Construction.C. ormally closed Common parts.o. ormally open V VW