20% More flow 10% Smaller 30% Lighter

Transcription

1 irect Operated Port Solenoid Valve New low rate ody material ir luminum, esin Water/Oil/ Medium vacuum (rass), Stainless steel ir arge flow rate Medium vacuum ompact Height onventional model Water VX ightweight Weight 0% More flow 0% Smaller 0% ighter ( ) omparison with SM convenional model ( ) New Oil (, luminum body) nclosure IP6 lectrical entry "aston" type terminal is IP0. ohs With one-touch fittings (resin body) 6 mm 6 mm Power consumption. W ( ) W ( ) 0. W ( ) () racket Standard equipment Series VX// T.S0- ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

2 irect Operated Port Solenoid Valve ir Medium vacuum nclosure IP6 Water lame resistance U9V-0 conformed ow-noise construction Metal noise reduced by the rubber damper Oil Piping variations Thread piping, one-touch fitting Power consumption. W ( ) W ( ) 0. W ( ) Improved armature durability ody material ir luminum, esin Water/ Oil/ Medium vacuum (rass), Stainless steel uilt-in full-wave rectifier type ( specification) Improved durability Service life is extended by the special construction. (compared with current shading coil) educed buzz noise ectified to by the full-wave rectifier, resulting in a buzz noise reduction. educed apparent power 0 V V ( ) 0 V 9. V ( ) V V ( ) Improved O response Specially constructed to improve the O response when operated with a higher viscosity fluid such as oil. ow-noise construction Specially constructed to reduce the metal noise during operation. Normally losed (N..) eatures mmø mmø mmø Orifice diameter mmø mmø mmø 0 mmø /, / One-touch fitting: ø6, ø /, / One-touch fitting: ø, ø0 /, /, / One-touch fitting: ø0, ø ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

3 Series VX// ommon Specifications/Selection Steps Standard Specifications Valve specifications oil specifications Solenoid oil Specifications Normally losed (N..) Specification Valve construction Withstand pressure MPa ody material Seal material nclosure nvironment ated llowable fluctuation llowable leakage (uilt-in full-wave rectifier type) oil insulation type Note ) lectrical entry "aston" type terminal is IP0. Note ) Voltage in ( ) indicates special. (efer to page 0.) e sure to read Specific Product Precautions before handling. Power consumption (W) Note ) Temperature rise ( ) Note ) Note ) Power consumption, pparent power: The value at ambient temperature of 0 and when the rated is applied. (Variation: ±0%) Note ) The value at ambient temperature of 0 and when the rated is applied. The value depends on the ambient environment. This is for reference. irect operated poppet.0 (resin body type.) luminum, esin, (rass), Stainless steel N, KM usttight, ow jetproof (IP6) Note ) ocation without corrosive or explosive gases 00 V, 00 V, 0 V, 0 V (0 V, 0 V, V) V ( V) Note ) 0% of rated 0% or less of rated % or less of rated lass Note ) Specification (uilt-in ull-wave ectifier Type) pparent power (V) Note ) ) Temperature rise ( ) Note ) Note ) Power consumption, pparent power: The value at ambient temperature of 0 and when the rated is applied. (Variation: ±0%) Note ) There is no difference in the frequency and the inrush and energized apparent power, since a rectifying circuit is used in the (built-in full-wave rectifier type). Note ) The value at ambient temperature of 0 and when the rated is applied. The value depends on the ambient environment. This is for reference. Specifications or ir or Medium Vacuum or Water or Oil Step Select the fluid. Selection Steps onstruction Item Select the fluid. Selection item ir Water Oil Medium vacuum Page P. P. 6 P. P. 0 VX 0 imensions Step Select ody material, and Orifice diameter from low rate Pressure of each fluid. Item Selection item Select from low rate Pressure. ody material Orifice diameter ody material Orifice diameter luminum / VX 0 Step Select electrical specification. Item Selection item Select electrical specification. Voltage V lectrical entry Grommet VX 0 Step or other special options, refer to page 0. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

4 Series VX// or ir Single Unit Model/Valve Specificationscations N.. Passage symbol Normally losed (N..) Iuminum ody Type /, / /, / /, / / Orifice diameter (mmø) 0 0 Model VX0 VX0 VX0 [dm /(s bar)] b v low-rate characteristics Maximum operating pressure differential (MPa) Weight Note) (g) esin ody Type (uilt-in One-touch ittings) Orifice diameter (mmø) 0 0 Model VX0 VX0 VX0 [dm /(s bar)] b v low-rate characteristics Maximum operating pressure differential (MPa) Note) Weight of grommet type. dd 0 g for conduit type, 0 g for IN terminal type, 60 g for conduit terminal type respectively. efer to Glossary of Terms on page 6 for details on the maximum operating pressure differential Weight Note) (g) luid and mbient Temperature luid temperature () 0 Note) to 60 Note) ew point temperature: 0 or less mbient temperature () 0 to 60 Valve eakage Internal eakage Seal material N xternal eakage Seal material N eakage rate (ir) Note) cm /min or less (Iuminum body type) cm /min or less (esin body type) eakage rate (ir) Note) cm /min or less (Iuminum body type) cm /min or less (esin body type) Note) eakage is the value at ambient temperature 0. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

5 irect Operated Port Solenoid Valve Series VX// or ir Single Unit How to Order (Single Unit) VX 0 luid 0 or air ohs ommon Specifications Valve type N.. Seal material N oil insulation type lass Thread type c Specifications /Valve type Valve type Single unit N.. Single unit N.. Single unit N.. ody material//orifice diameter H J K M N H J M G H J K M N ody material luminum esin luminum esin luminum esin / / ø6 one-touch fitting ø one-touch fitting / / ø one-touch fitting ø0 one-touch fitting / / / ø0 one-touch fitting ø one-touch fitting Orifice diameter Voltage/lectrical entry G H J K M N P S T U V W Y Voltage V 00 V 0 V 00 V 0 V V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V Grommet Grommet With surge suppressor IN terminal With surge suppressor onduit terminal With surge suppressor onduit With surge suppressor aston terminal lectrical entry or ir or Medium Vacuum or Water or Oil onstruction imensions Z Other s and electrical options imensions Page (Single unit) or other special options, refer to page 0. V 0 V Special 0 V V IN terminal with light onduit terminal with light ow concentration ozone resistant (Seal material: KM) Oil-free G thread NPT thread ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

6 Series VX// or Medium Vacuum Single Unit Model/Valve Specifications N.. Passage symbol (pplication example) Used with vacuum Used with pressure Normally losed (N..) /, / /, / /, / / Orifice diameter (mmø) 0 0 Model VX VX VX [dm /(s bar)] low-rate characteristics Operating pessure range Used with Used with vacuum (Pa abs) pressure (MPa) 0 to.0 0 to to to atmospheric pressure Note) Weight of grommet type. dd 0 g for conduit type, 0 g for IN terminal type, 60 g for conduit terminal type respectively. b v to.0 0 to 0. 0 to.0 0 to 0. 0 to 0. 0 to 0. Note) Weight (g) luid and mbient Temperature Valve eakage luid temperature () mbient temperature () Seal material to 60 0 to 60 KM Note) With no freezing Internal eakage xternal eakage Seal material KM eakage rate Note) 0 6 Pa m /sec or less eakage rate Note) 0 6 Pa m /sec or less Note) eakage (0 6 Pa m /sec) is the value at differential pressure 0. MPa and ambient temperature 0. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

7 irect Operated Port Solenoid Valve Series VX// or Medium Vacuum Single Unit How to Order (Single Unit) VX luid or medium vacuum ohs ommon Specifications Valve type N.. Seal material KM oil insulation type lass Thread type c Specifications /Valve type ody material//orifice diameter Voltage/lectrical entry Valve type Single unit N.. Single unit N.. Single unit N.. H J K M N H J M G H J K M N P ody material Stainless steel Stainless steel Stainless steel / / / / / / / / / / / / / / Orifice diameter G H J K M N P S T U V W Y Z Voltage V 00 V 0 V 00 V 0 V V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V Grommet Grommet With surge suppressor IN terminal With surge suppressor onduit terminal With surge suppressor onduit With surge suppressor aston terminal lectrical entry Other s and electrical options or ir or Medium Vacuum or Water or Oil onstruction imensions or other special options, refer to page 0. V 0 V Special 0 V V IN terminal with light onduit terminal with light G thread NPT thread racket interchangeable with old type imensions Page (Single unit) ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

8 Series VX// or Water Single Unit Model/Valve Specifications N.. Passage symbol Normally losed (N..) /, / /, / /, / / Orifice diameter (mmø) 0 0 Model VX VX VX low-rate characteristics V onversion v Maximum operating pressure differential (MPa) Weight Note) (g) Note) Weight of grommet type. dd 0 g for conduit type, 0 g for IN terminal type, 60 g for conduit terminal type respectively. efer to Glossary of Terms on page 6 for details on the maximum operating pressure differential luid and mbient Temperature luid temperature () mbient temperature () to 60 0 to 60 Note) With no freezing Valve eakage Internal eakage Seal material eakage rate (Water) Note) N 0. cm /min or less xternal eakage Seal material eakage rate (Water) Note) N 0. cm /min or less Note) eakage is the value at ambient temperature 0. 6 ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

9 irect Operated Port Solenoid Valve Series VX// or Water Single Unit How to Order (Single Unit) VX luid or water ohs ommon Specifications Valve type N.. Seal material N oil insulation type lass Thread type c Specifications /Valve type Valve type Single unit N.. Single unit N.. Single unit N.. ody material//orifice diameter H J K M N H J M G H J K M N P ody material Stainless steel Stainless steel Stainless steel / / / / / / / / / / / / / / Orifice diameter Voltage/lectrical entry G H J K M N P S T U V W Y Z Voltage V 00 V 0 V 00 V 0 V V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V Grommet Grommet With surge suppressor IN terminal With surge suppressor onduit terminal With surge suppressor onduit With surge suppressor aston terminal lectrical entry Other s and electrical options or ir or Medium Vacuum or Water or Oil onstruction imensions imensions Page (Single unit) or other special options, refer to page 0. V 0 V Special 0 V V IN terminal with light onduit terminal with light Oil-free G thread NPT thread racket interchangeable with old type ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

10 Series VX// or Oil Single Unit When the fluid is oil. The kinematic viscosity must not exceed 0 mm /s. The special construction of the armature adopted in the built-in full-wave rectifier type gives an improvement in O response by providing clearance on the absorbed surface when it is switched ON. Model/Valve Specifications N.. Passage symbol Normally losed (N..) /, / /, / /, / / Orifice diameter (mmø) 0 0 Model VX VX VX low-rate characteristics V onversion v Maximum operating pressure differential (MPa) Note) Weight of grommet type. dd 0 g for conduit type, 0 g for IN terminal type, 60 g for conduit terminal type respectively. efer to Glossary of Terms on page 6 for details on the maximum operating pressure differential Weight Note) (g) luid and mbient Temperature luid temperature () mbient temperature () Note) to 60 0 to 60 Note) Kinematic viscosity: 0 mm /s or less Valve eakage Internal eakage Seal material eakage rate (Oil) Note) KM 0. cm /min or less xternal eakage Seal material eakage rate (Oil) Note) KM 0. cm /min or less Note) eakage is the value at ambient temperature 0. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

11 irect Operated Port Solenoid Valve Series VX// or Oil Single Unit How to Order (Single Unit) VX luid or oil ohs ommon Specifications Valve type N.. Seal material KM oil insulation type lass Thread type c Specifications /Valve type Valve type Single unit N.. Single unit N.. Single unit N.. ody material//orifice diameter H J K M N H J M G H J K M N P ody material Stainless steel Stainless steel Stainless steel / / / / / / / / / / / / / / Orifice diameter Voltage/lectrical entry G H J K M N P S T U V W Y Z Voltage V 00 V 0 V 00 V 0 V V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V 00 V 0 V 00 V 0 V V Grommet Grommet With surge suppressor IN terminal With surge suppressor onduit terminal With surge suppressor onduit With surge suppressor aston terminal lectrical entry Other s and electrical options or ir or Medium Vacuum or Water or Oil onstruction imensions imensions Page (Single unit) or other special options, refer to page 0. V 0 V Special 0 V V IN terminal with light onduit terminal with light Oil-free G thread NPT thread racket interchangeable with old type ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

12 onstruction Series VX// Other Special Options lectrical options (Special, with light) VX 0 Z nter standard product number. lectrical option lectrical option (Special, with light) Special G H J K M N P S T Voltage V 0 V 0 V V V V 0 V 0 V V V 0 V 0 V V V 0 V 0 V V V lectrical entry Grommet Grommet (With surge suppressor) IN terminal onduit terminal onduit aston terminal Oilfree Specification Specification With light G H J K M N P S T V 00 V 0 V 00 V 0 V V 0 V 0 V V V 00 V 0 V 00 V 0 V V 0 V 0 V V lectrical entry IN terminal onduit terminal Normally closed (N..) ody material: Iuminum,, Stainless steel Other options (ow concentration ozone resistant, oil-free, special thread) VX ow concentration ozone resistant Note) (Seal material: KM) G H K Z Note) pplicable to air 0 nter standard product number. Other option (ow concentration ozone Special thread Z G NPT Standard (c) G NPT G NPT Standard (c) G NPT Standard (c) ody material: esin racket interchangeable with old type The brackets are interchangeable with brackets of old VX// series. or details of exterior dimensions, please contact SM. Only for and stainless steel (Select when interchangeable product is necessary for air.) resistant, oil-free, special thread) VX X Voltage nter standard product number. racket interchangeable with old type nter symbols in the order below when ordering a combination of electrical option, other options, and bracket interchangeable with old type. xample) VX 0 Z Z X lectrical option Other option racket interchangeable with old type IN OUT IN OUT omponent Parts No. 6 0 escription Solenoid coil ixed armature Tube Spring rmature assembly Seal ody Material u + e + esin Stainless steel Stainless steel Stainless steel N, KM, Stainless steel N, KM luminum,, Stainless steel omponent Parts No. 6 escription Solenoid coil ixed armature Tube Spring rmature assembly Seal ody Material u + e + esin Stainless steel Stainless steel Stainless steel N, Stainless steel N, KM esin (PT) ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

13 irect Operated Port Solenoid Valve Series VX// ir Medium Water vacuum Oil imensions: ody Material: luminum Grommet () 00 Grommet (with surge suppressor) 00 Specifications x P G/ able ø6 to ø G/ S x P x P 0 x P or ir IN terminal onduit terminal T or Medium Vacuum or Water S or Oil onduit aston type onstruction imensions x P x P P /, / /, / /, / / (mm) lectrical entry Grommet (with Grommet surge suppressor) Terminal part aston connector 0 Series 6. 9 P /, / /, / /, / / lectrical entry IN terminal onduit terminal onduit aston type S S T ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

14 X X Series VX// or ir, Medium Vacuum, Water, Oil imensions: ody Material: esin Grommet Y W Grommet (with surge suppressor) Y W U U 00 x ø. Mounting hole 00 x P Y W Y W U X U X G/ able ø6 to ø S T U X U X U X U X x ø. Mounting hole x P IN terminal onduit terminal x ø. Mounting hole x ø. Mounting hole x P x P S or information on handling one-touch fittings and appropriate tubing, refer to page and K series one-touch fittings in est Pneumatics No. 6. The K series information can be downloaded from the following SM website, One-touch fitting P 6,, 0 0, One-touch fitting P 6,, 0 0, Grommet Grommet (with surge suppressor) lectrical entry IN terminal.. (mm) Mounting bracket dimensions U U W X X Y S onduit terminal S T 6.. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

15 irect Operated Port Solenoid Valve Series VX// ir Medium Water vacuum Oil imensions: ody Material: esin onduit Y W aston type Y W 6. 9 U X U X G/ 0 U X U X Specifications x ø. Mounting hole x ø. Mounting hole or ir x P x P or Water Terminal part aston connector 0 Series or Oil onstruction or Medium Vacuum One-touch fitting P 6,, 0 0, U Mounting bracket dimensions U W X 6 6 X 6. Y 0 0 (mm) lectrical entry onduit aston type imensions ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

16 Series VX// or ir, Medium Vacuum, Water, Oil imensions: ody Material:, Stainless Steel Grommet Grommet (with surge suppressor) x P G/ able ø6 to ø S T x P IN terminal onduit terminal x P x P S P /, / /, / /, / / Grommet Grommet (with surge suppressor) lectrical entry IN terminal 9. S... S T onduit terminal (mm) ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

17 irect Operated Port Solenoid Valve Series VX// ir Medium Water vacuum Oil imensions: ody Material:, Stainless Steel onduit G/ 0 aston type Specifications 6. 9 x P x P Terminal part aston connector 0 Series or Medium Vacuum or Oil or ir or Water P /, / /, / /, / / eplacement Parts IN onnector Part No. Without electrical option With electrical option (light) G6GU GM lectrical option With light ated 00 V, 0 V 00 V, 0 V 0 V, 0 V V V V (mm) lectrical entry onduit aston type Gasket for IN onnector VW0--9- ead Wire ssembly for aston Terminal (Set of pcs.) VX0S--6 onstruction imensions ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

18 Series VX// Glossary of Terms Pressure Terminology. Maximum operating pressure differential The maximum pressure differential (the difference between the inlet and outlet pressure) which is allowed for operation. When the outlet pressure is 0 MPa, this becomes the maximum operating pressure.. Minimum operating pressure differential The minimum pressure differential (the difference between the inlet pressure and outlet pressure) required to keep the main valve fully opened.. Maximum system pressure The maximum pressure that can be applied inside the pipelines (line pressure). [The pressure differential in the solenoid valve portion must be less than the maximum operating pressure differential.]. Withstand pressure The pressure in which the valve must be withstood without a drop in performance after holding for one minute under prescribed (static) pressure and returning to the operating pressure range. [value under the prescribed conditions] Others. Material N: Nitrile rubber KM: luoro rubber Trade names: Viton, ai-el, etc.. Oil-free treatment The degreasing and washing of wetted parts. Passage symbol In the JIS symbol ( ) IN and OUT are in a blocked condition ( ), but actually in the case of reverse pressure (OUT> IN), there is a limit to the blocking. ( ) is used to indicate that blocking of reverse pressure is not possible. aston Terminal. aston TM is a trademark of Tyco lectronics orp.. or electrical connection of the aston terminal and molded coil, please use Tyco s mp/aston connector/0 Series or the equivalent. lectrical Terminology. Surge high which is momentarily generated by shutting off the power in the shut-off area.. nclosure degree of protection defined in the JIS 090: Waterproof test of electric machinery/appliance and the degree of protection against the intrusion of solid foreign objects. Verify the degree of protection for each product. 6 IP Second characteristic numeral irst characteristic numeral irst haracteristics: egrees of protection against solid foreign objects 0 6 Non-protected Protected against solid foreign objects of 0 mmø and greater Protected against solid foreign objects of mmø and greater Protected against solid foreign objects of. mmø and greater Protected against solid foreign objects of.0 mmø and greater ust-protected usttight Second haracteristics: egrees of protection against water 0 6 Non-protected Protected against vertically falling water drops Protected against vertically falling water drops when enclosure tilted up to Protected against rainfall when enclosure tilted up to 60 Protected against splashing water Protected against water jets Protected against powerful water jets Protected against the effects of temporary immersion in water Protected against the effects of continuous immersion in water ripproof type ripproof type ainproof type Splashproof type ow jetproof type Strong jetproof type Immersible type Submersible type xample) IP6: usttight, ow jetproof type ow jetproof type means that no water intrudes inside an equipment that could hinder from operating normally by means of applying water for minutes in the prescribed manner. Take appropriate protection measures, since a device is not usable in an environment where a droplet of water is splashed constantly. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

19 Series VX// Solenoid Valve low-rate haracteristics (How to indicate flow-rate characteristics). Indication of flow-rate characteristics The flow-rate characteristics in equipment such as a solenoid valve, etc. are indicated in their specifications as shown in Table (). Table () Indication of low-rate haracteristics orresponding equipment Pneumatic equipment Process fluid control equipment. Pneumatic equipment. Indication according to the international standards () onformed standard ISO 6: 99 : Pneumatic fluid poweromponents using compressible fluids etermination of flow-rate characteristics JIS 90: 000 : Pneumatic fluid poweromponents using compressible fluids How to test flow-rate characteristics () efinition of flow-rate characteristics The flow-rate characteristics are indicated as a result of a comparison between sonic conductance and critical pressure ratio b. Sonic conductance : Value which divides the passing mass flow rate of an equipment in a choked flow condition by the product of the upstream absolute pressure and the density in a standard condition. ritical pressure ratio b : Pressure ratio (downstream pressure/upstream pressure) which will turn to a choked flow when the value is smaller than this ratio. hoked flow Subsonic flow Standard condition Indication by international standard, b () ormula for flow rate escribed by the practical units as following. v Other indications : The flow in which the upstream pressure is higher than the downstream pressure and where sonic speed in a certain part of an equipment is reached. Gaseous mass flow rate is in proportion to the upstream pressure and not dependent on the downstream pressure. : low greater than the critical pressure ratio : ir in a temperature state of 0, absolute pressure 0. MPa (= 00 kpa = bar), relative humidity 6%. It is stipulated by adding the (N) after the unit depicting air volume. (standard reference atmosphere) onformed standard: ISO : 990 Pneumatic fluid powerstandard reference atmosphere, JIS 9: 000: Pneumatic fluid powerstandard reference atmosphere P + 0. When b, choked flow P + 0. = 600 x 9 (P + 0.) () + t P When + 0. > b, subsonic flow P + 0. P + 0. b P + 0. = 600 x (P + 0.) 9 () b + t S v v onformed standard ISO 6: 99 JIS 90: 000 JIS 90: 000 quipment: JIS,,, 9, NSI/(NP)T..: 990 I60--: 99 JIS 00: 99 quipment: JIS,, : ir flow rate [dm /min (N)], dm (ubic decimeter) of SI unit are allowed to be described by (liter). dm = ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

20 Series VX// Solenoid Valve low-rate haracteristics (How to indicate flow-rate characteristics) : Sonic conductance [dm /(s bar)] b : ritical pressure ratio [] P : Upstream pressure [MPa] P : ownstream pressure [MPa] t : Temperature [] Note) ormula of subsonic flow is the elliptic analogous curve. low-rate characteristics are shown in Graph () or details, please make use of SM s nergy Saving Program. xample) Obtain the air flow rate for P = 0. [MPa], P = 0. [MPa], t = 0 [] when a solenoid valve is performed in = [dm /(s bar)] and b = 0.. ccording to formula (), the maximum flow rate = 600 x x ( ) x Pressure ratio = = low rate ratio b = P quipment, b 0. P Pressure ratio (P + 0.) / (P + 0.) Graph () low-rate characteristics = 600 [dm /min (N)] + 0 ased on Graph (), the flow rate ratio will be 0. when the pressure ratio is 0. and b = 0.. Therefore, flow rate = Maximum flow rate x flow rate ratio = 600 x 0. = 0 [dm /min (N)] () Test method ttach a test equipment with the test circuit shown in ig. () while maintaining the upstream pressure to a certain level which does not go below 0. MPa. Next, measure the maximum flow to be saturated in the first place, then measure this flow rate at 0%, 60%, 0%, 0% and the upstream and downstream pressure. nd then, obtain the sonic conductance from this maximum flow rate. esides that, substitute each data of others for the subsonic flow formula to find b, then obtain the critical pressure ratio b from that average. Pressure control equipment ød d Thermometer Pressure gauge or pressure convertor d ød ifferential pressure gauge or differential pressure converter low control valve ød ir supply ilter Shut off valve 0d 0d d 0d d low meter Pipe for measuring quipment temperature for test Pipe for measuring pressure in the Pipe for measuring pressure in the upstream side downstream side ig. () Test circuit based on ISO 6, JIS 90 ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

21 Solenoid Valve low-rate haracteristics Series VX//. ffective area S () onformed standard JIS 90: 000: Pneumatic fluid poweromponents using compressible fluids How to test flow-rate characteristics quipment standards: JIS : port solenoid valve for pneumatics JIS : port solenoid valve for pneumatics JIS : port, port solenoid valve for pneumatics JIS 9: Silencer for pneumatics JIS : ittings of flexible joint for pneumatics () efinition of flow-rate characteristics ffective area S : The cross-sectional area having an ideal throttle without friction or without reduced flow. It is deduced from the calculation of the pressure changes inside an air tank 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. () ormula for flow rate P + 0. When 0., choked flow P + 0. = 0 x S 9 (P + 0.) () + t P + 0. When > 0., subsonic flow P + 0. = 0 x S 9 (P + 0.) (P P) () + t onversion with sonic conductance : S =.0 x () : ir flow rate [dm /min(n)], dm (cubic decimeter) of SI unit are allowed to be described by (liter). dm = S : ffective area [mm ] P : Upstream pressure [MPa] P : ownstream pressure [MPa] t : Temperature [] Note) ormula for subsonic flow () is only applicable when the critical pressure ratio b is unknown for equipment. In the formula () by the sonic conductance, it is the same formula as when b = 0.. () Test method ttach a test equipment with the test circuit shown in ig. () in order to discharge air into the atmosphere until the pressure inside the air tank goes down to 0. MPa (0. MPa) from an air tank filled with the compressed air at a certain pressure level (0. MPa) which does not go below 0.6 MPa. t this time, measure the discharging time and the residual pressure inside the air tank which had been left until it turned to be the normal values to determine the effective area S, using the following formula. The volume of an air tank should be selected within the specified range by corresponding to the effective area of an equipment for test. In the case of JIS,,, 9,, the pressure values are in parentheses and the coefficient of the formula is.9. ( ) V Ps S =. log0 (6) t P + 0. T S : ffective area [mm ] V : ir tank capacity [dm ] t : ischarging time [s] Ps : Pressure inside air tank before discharging [MPa] P : esidual pressure inside air tank ir after discharging [MPa] supply T : Temperature inside air tank before discharging [K] Thermometer Pressure control equipment ilter Shut off valve ir tank Pressure switch ontrol circuit Pressure gauge or pressure convertor Timer (lock) Pressure recorder ig. () Test circuit based on JIS 90 Power supply Solenoid valve quipment for test ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00) ectifier tube on the upstream side ectifier tube on the downstream side 9

22 Series VX// Solenoid Valve low-rate haracteristics (How to indicate flow-rate characteristics). low coefficient v factor The United States Standard NSI/(NP)T..: 990: Pneumatic fluid powerlow rating test procedure and reporting method for fixed orifice components efines the flow coefficient, v factor by the following formula which is based on the test conducted by the test circuit analogous to ISO 6. v = () P (P + Pa). T P : Pressure drop between the static pressure tapping ports [bar] P : Pressure of the upstream tapping port [bar gauge] P : Pressure of the downstream tapping port [bar gauge]: P = P P : low rate [dm /s standard condition] Pa : tmospheric pressure [bar absolute] T : Upstream absolute temperature [K] Test conditions are P + Pa = bar absolute, T = 9 K, 0.0 bar P 0. bar. This is the same concept as effective area which ISO 6 stipulates as being applicable only when the pressure drop is smaller than the upstream pressure and the compression of air does not become a problem.. Process fluid control equipment () onformed standard I60--: 99: Industrial process control valves. Part : low capacity, Section Three-Test procedures JIS 00: 99: How to test flow coefficient of a valve quipment standards: JIS : Solenoid valve for water JIS : Solenoid valve for steam JIS : Solenoid valve for fuel oil () efinition of flow-rate characteristics v factor: Value of the clean water flow rate represented by m /s which runs through a valve (equipment for test) when the pressure differential is Pa. It is calculated using the following formula. v = () P v : low coefficient [m ] : low rate [m /s] P : Pressure differential [Pa] : luid density [kg/m ] () ormula for flow rate escribed by the practical units. lso, the flow-rate characteristics are shown in Graph (). In the case of liquid: =.9 x 0 P 6 v (9) G : low rate [/min] v : low coefficient [m ] P : Pressure differential [MPa] G : Specific gravity [water = ] In the case of saturated steam: =. x 0 6 v P(P + 0.) (0) : low rate [kg/h] v : low coefficient [m ] P : Pressure differential [MPa] P : Upstream pressure [MPa]: P = P P P : ownstream pressure [MPa] 0 ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

23 Solenoid Valve low-rate haracteristics Series VX// onversion of flow coefficient: v = x 0 6 Kv = x 0 6 v () Here, Kv factor : Value of the clean water flow rate represented by m /h which runs through a valve at to 0, when the pressure differential is bar. v factor (eference values) : Value of the clean water flow rate represented by US gal/min which runs through a valve at 60, when the pressure differential is lbf/in (psi). Value is different from Kv and v factors for pneumatic purpose due to different test method. Saturated steam flow rate 0 [kg/h] (when v = x 0 6 [m ]) xample P = 0.6 MPa P = 0. MPa Graph () low-rate characteristics xample ) Obtain the pressure differential when water [/min] runs through a solenoid valve with an v = x 0 6 [m ]. Since 0 = / = 0. [/min], according to Graph (), if reading P when 0 is 0., it will be 0.0 [MPa]. xample ) Obtain the saturated steam flow rate when P = 0. [MPa], P = 0.00 [MPa] with a solenoid valve with an v =. x 0 6 [m ]. ccording to Graph (), if reading 0 when P is 0. and P is 0.00, it is 0. [kg/h]. Therefore, the flow rate = 0. x. =.0 [kg/h]. () Test method ttach a test equipment with the test circuit shown in ig. (). Next, pour water at to 0, then measure the flow rate with a pressure differential of 0.0 MPa. However, the pressure differential needs to be set with a large enough difference so that the eynolds number does not go below a range of x 0. y substituting the measurement results for formula () to figure out v. Thermometer P = 0. MPa Upstream pressure P = MPa P = 0. MPa P = 0. MPa P = 0. MPa Pressure differential P [MPa] Test range P = 0. MPa xample Water flow rate 0 [/min] (When v = x 0 6 [m ]) Pressure tap quipment for test Pressure tap estrictor on the upstream side low meter d 6d estrictor on the downstream side 0d 0d ig. () Test circuit based on I60--, JIS 00 ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

24 Series VX// low-rate haracteristics Note) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to pages through to. or ir ownstream pressure of valve (P) [MPa] Upstream pressure of valve P.0 MPa ,000, ,000, , low rate [/min (N)] ,000,00 Subsonic ritical pressure Sonic ø ø ø ø ø ø ø0 ø0 How to read the graph The sonic range pressure to generate a flow rate of 00 /min (N) is P 0. MPa for a ø orifice and P 0. MPa for a ø orifice. or Water 0 0 ø0 ø ø ø, ø ø 0 ø low rate [/min] (0.00) (0.00) 0.0 (0.0) 0.0 (0.0) Pressure differential P = (P P) [MPa] How to read the graph When a water flow of /min is generated, P 0.0 MPa for a valve with ø orifice. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

25 Series VX// Specific Product Precautions e sure to read before handling. efer to back cover for Safety Instructions, Handling Precautions for SM Products (M-0-) and the Operation Manual for Port Solenoid Valves for luid ontrol Precautions. Please download it via our website. Warning esign. annot be used as an emergency shutoff valve, etc. The valves presented in this catalog are not designed for safety applications such as an emergency shutoff valve. If the valves are used in this type of system, other reliable safety assurance measures should also be adopted.. xtended periods of continuous energization The solenoid coil will generate heat when continuously energized. void using in a tightly shut container. Install it in a well-ventilated area. urthermore, do not touch it while it is being energized or right after it is energized.. iquid rings In cases with a flowing liquid, provide a bypass valve in the system to prevent the liquid from entering the liquid seal circuit.. ctuator drive When an actuator, such as a cylinder, is to be driven using a valve, take appropriate measures to prevent potential danger caused by actuator operation.. Pressure (including vacuum) holding It is not usable for an application such as holding the pressure (including vacuum) inside of a pressure vessel because air leakage is entailed in a valve. 6. When the conduit type is used as equivalent to an IP6 enclosure, install a wiring conduit, etc.. When an impact, such as water hammer, etc., caused by the rapid pressure fluctuation is applied, the solenoid valve may be damaged. Give an attention to it. Selection Warning. luid ) Type of fluid efore using a fluid, check whether it is compatible with the materials of each model by referring to the fluids listed in this catalog. Use a fluid with a kinematic viscosity of 0 mm /s or less. If there is something you do not know, please contact SM. ) lammable oil, Gas onfirm the specification for leakage in the interior and/or exterior area. ) orrosive gas annot be used since it will lead to cracks by stress corrosion or result in other incidents. ) epending on water quality, a brass body can cause corrosion and internal leakage may occur. If such abnormalities occur, exchange the product for a stainless steel body. ) Use an oil-free specification when any oily particle must not enter the passage. 6) pplicable fluid on the list may not be used depending on the operating condition. Give adequate confirmation, and then determine a model, just because the compatibility list shows the general case. Warning Selection. luid quality The use of a fluid that contains foreign objects can cause problems such as malfunction and seal failure by promoting wear of the valve seat and armature, and by sticking to the sliding parts of the armature, etc. Install a suitable filter (strainer) immediately upstream from the valve. s a general rule, use 0 to 00 mesh. When using tap water, since substances such as calcium and magnesium which generate hard scale and sludge are included and can cause the valve to malfunction, install water softening equipment and a filter (strainer) right before the valve to remove these substances.. ir quality ) Use clean air. o not use compressed air that contains chemicals, synthetic oils including organic solvents, salt or corrosive gases, etc., as it can cause damage or malfunction. ) Install an air filter. Install an air filter close to the valve on the upstream side. filtration degree of µm or less should be selected. ) Install an aftercooler or air dryer, etc. ompressed air that contains excessive drainage may cause malfunction of valves and other pneumatic equipment. To prevent this, install an aftercooler or air dryer, etc. ) If excessive carbon powder is generated, eliminate it by installing a mist separator on the upstream side of valves. If excessive carbon powder is generated by the compressor, it may adhere to the inside of the valves and cause a malfunction. efer to est Pneumatics No. for further details on compressed air quality.. mbient environment Use within the operable ambient temperature range. heck the compatibility between the product s composition materials and the ambient atmosphere. e certain that the fluid used does not touch the external surface of the product.. ountermeasures against static electricity Take measures to prevent static electricity since some fluids can cause static electricity. 6. ow temperature operation ) The valve can be used in an ambient temperature of between 0 to 0. However, take measures to prevent freezing or solidification of impurities, etc. ) When using valves for water application in cold climates, take appropriate countermeasures to prevent the water from freezing in tubing after cutting the water supply from the pump, by draining the water, etc. When warming by a heater, etc., be careful not to expose the coil portion to a heater. Installation of a dryer, heat retaining of the body is recommended to prevent a freezing condition in which the dew point temperature is high and the ambient temperature is low, and the high flow runs. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

26 Series VX// Specific Product Precautions e sure to read before handling. efer to back cover for Safety Instructions, Handling Precautions for SM Products (M-0-) and the Operation Manual for Port Solenoid Valves for luid ontrol Precautions. Please download it via our website. Selection Warning. luid quality Water The use of a fluid that contains foreign objects can cause problems such as malfunction and seal failure by promoting wear of the valve seat and armature, and by sticking to the sliding parts of the armature, etc. Install a suitable filter (strainer) immediately upstream from the valve. s a general rule, use 0 to 00 mesh. When using tap water, since substances such as calcium and magnesium which generate hard scale and sludge are included and can cause the valve to malfunction, install water softening equipment and a filter (strainer) right before the valve to remove these substances. ir Use ordinary compressed air where a filter of µm or less is provided on the inlet side piping. (xcept dry air) Oil Generally, KM is used as seal material, as it is resistant to oil. The resistance of the sealing material may deteriorate depending on the type of oil, manufacturer, or additives. heck the resistance before using. Mounting Warning. Mount a valve with its coil position upwards, not downwards. When mounting a valve with its coil positioned downwards, foreign objects in the fluid will adhere to the iron core leading to a malfunction. specially for strict leakage control, such as with vacuum applications and non-leak specifications, the coil must be positioned upwards.. o not warm the coil assembly with a heat insulator, etc. Use tape, heaters, etc., for freeze prevention on the piping and body only. They can cause the coil to burn out.. Secure with brackets, except in the case of steel piping and copper fittings. 6. void sources of vibration, or adjust the arm from the body to the minimum length so that resonance will not occur.. Painting and coating Warnings or specifications printed or labeled on the product should not be erased, removed or covered up. aution. eakage Particularly when using a resistor in parallel with a switching element and using a - element (surge suppressor) to protect the switching element, take note that leakage current will flow through the resistor, - element, etc., creating a possible danger that the valve may not turn off. Warning Switching element O eakage current Mounting Valve /lass built-in full-wave rectifier coil: 0% or less of rated coil: % or less of rated. Selecting model Material depends on fluid. Select optimal models for the fluid.. When the fluid is oil. The kinematic viscosity must not exceed 0 mm /s.. If air leakage increases or equipment does not operate properly, stop operation. fter mounting is completed, confirm that it has been done correctly by performing a suitable function test.. o not apply external force to the coil section. When tightening is performed, apply a wrench or other tool to the outside of the piping connection parts. Power supply eakage Piping Warning. uring use, deterioration of the tube or damage to the fittings could cause tubes to come loose from their fittings and thrash about. To prevent uncontrolled tube movement, install protective covers or fasten tubes securely in place.. or piping the tube, fix the product securely using the mounting holes so that the product is not in the air. aution. Preparation before piping efore piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove chips, cutting oil and other debris from inside the pipe. Install piping so that it does not apply pulling, pressing, bending or other forces on the valve body.. void connecting ground lines to piping, as this may cause electric corrosion of the system.. Tighten threads with the proper tightening torque. When attaching fittings to valves, tighten with the proper tightening torque shown below. Tightening Torque for Piping onnection thread Proper tightening torque (N m) c/ to 9 c/ to c/ to c/ to 0. onnection of piping to products When connecting piping to a product, refer to its operation manual to avoid mistakes regarding the supply port, etc.. In applications such as vacuum and non-leak specifications, use caution specifically against the contamination of foreign objects or airtightness of the fittings. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)

27 Series VX// Specific Product Precautions e sure to read before handling. efer to back cover for Safety Instructions, Handling Precautions for SM Products (M-0-) and the Operation Manual for Port Solenoid Valves for luid ontrol Precautions. Please download it via our website. ecommended Piping onditions. When connecting tubes using one-touch fittings, provide some spare tube length shown in ig., recommended piping configuration. lso, do not apply external force to the fittings when binding tubes with bands, etc. (see ig..) Tube size ø/" ø6 ø/" ø ø0 ø Straight portion ecommended Mounting pitch ig. ecommended piping configuration Mounting pitch Nylon tube Soft nylon tube Polyurethane tube or more or more 9 or more or more 0 or more 6 or more 9 or more 9 or more 6 or more or more 0 or more or more Wiring or more 9 or more or more or more 69 or more or more Unacceptable ig. inding tubes with bands Unit: mm Straight portion length 6 or more 0 or more or more 0 or more 0 or more 60 or more aution. s a rule, use electrical wire with a cross sectional area of 0. to. mm for wiring. urthermore, do not allow excessive force to be applied to the lines.. Use electrical circuits which do not generate chattering in their contacts.. Use which is within ±0% of the rated. In cases with a power supply where importance is placed on responsiveness, stay within ±% of the rated value. The drop is the value in the lead wire section connecting the coil.. When a surge from the solenoid affects the electrical circuitry, install a surge suppressor, etc., in parallel with the solenoid. Or, adopt an option that comes with the surge protection circuit. (However, a surge occurs even if the surge protection circuit is used. or details, please consult with SM.) Warning aution Operating nvironment. o not use in an atmosphere having corrosive gases, chemicals, sea water, water, water steam, or where there is direct contact with any of these.. o not use in explosive atmospheres.. o not use in locations subject to vibration or impact.. o not use in locations where radiated heat will be received from nearby heat sources.. mploy suitable protective measures in locations where there is contact with water droplets, oil or welding spatter, etc. Warning Maintenance. emoving the product The valve will reach a high temperature when used with high temperature fluids. onfirm that the valve temperature has dropped sufficiently before performing work. If touched inadvertently, there is a danger of being burned. ) Shut off the fluid supply and release the fluid pressure in the system. ) Shut off the power supply. ) emove the product.. ow frequency operation Switch valves at least once every 0 days to prevent malfunction. lso, in order to use it under the optimum state, conduct a regular inspection once a half year.. ilters and strainers ) e careful regarding clogging of filters and strainers. ) eplace filter elements after one year of use, or earlier if the pressure drop reaches 0. MPa. ) lean strainers when the pressure drop reaches 0. MPa.. ubrication When using after lubricating, never forget to lubricate continuously.. Storage In case of long term storage after use with heated water, thoroughly remove all moisture to prevent rust and deterioration of rubber materials, etc.. xhaust the drainage from an air filter periodically. Operating Precautions Warning. If there is a possibility of reverse pressure being applied to the valve, take countermeasures such as mounting a check valve on the downstream side of the valve.. When problems are caused by a water hammer, install water hammer relief equipment (accumulator, etc.), or use an SM water hammer relief valve (Series VX). or details, please consult with SM. ourtesy of Steven ngineering, Inc.-0 yan Way, South San rancisco, Main Office: (60) -900-Outside ocal rea: (00)