FAQ

|3/4/5 Port Solenoid Valves

Why does my 5-port solenoid valve malfunction when operated at a low pressure (0.1 MPa)?

What is the difference between metal valve seals and rubber valve seals?

There are some types of valves which have a port with a screw stamped “PE” that has been cut. What does this mean?

The 5-port valve (internal pilot type) was manually operated during assembly, but the valve did not switch. The cylinder is not yet piped to the product and is releasing to the atmosphere. Why didn’t switching occur?

In the web catalog on the SMC website, there are series names with "10-" and "25A-" prefixes. What do these numbers mean?

For SJ2000/3000 series external pilot type valves, what should I do with the X and PE ports?

What is the power consumption of SJ2000/3000 series solenoid valves?

How do I increase the number of stations of SJ2000/3000 series solenoid valves?

What is the electric wiring for the manifold of SJ2000/3000 series D sub-connector type and flat ribbon cable type valves?

Are SYJ series valves and VJ series valves interchangeable?

What is the difference between existing SY series valves and new SY series valves?

What is the part number of the SY series lead wire with connector (for the L type/M type)?

What is the SY series manifold (SS5Y*) blanking plate assembly model?

When wiring SY series solenoid valves, is there polarity for the DC specification?

What is the sheath outer diameter and conductor cross-sectional area of solenoid valve lead wires?

What is the difference between “D” and “Y” type SY series DIN terminals?

The 2D-CAD CAD Data Search window on the website is not allowing me to search for the 2D-CAD data of the SY5140-5LZ-02. Why?

Why is air constantly leaking from the EA port of my SY5120-1G-C6 solenoid valve? It has been used for cylinder driving for about five years.

What does the "1" after the “1G” in the VF3130-1G1-02 part number mean?

What changes have been made to VF1000/3000/5000 series valves with the model change?

How do I select a VQC series SI unit (serial transmission)?

I will be removing the blanking plate attached to my VQC series manifold in order to add a valve. Do the valves come with mounting screws and gaskets?

What is the signal cut block? (The VQC series manifold with a “Y1” (VV5QC □1-□□□Y1) at the end of part number)

What is the common polarity of VQC series valves and manifolds? Also, what combinations are possible?

How should I use the external pilot type (Pilot type R) in VP300/500/700 series?

Is there polarity for connecting electrical wiring to the DC type of the VP300/500/700 series?

How can VP300/500/700 series valves be changed from N.C. to N.O.?

What plug connector with lead wire model should be used for the VP542-5MOZ1-03A?

What is the "Single valve with 6 valve functions (Universal porting type)" in the VT307/VT315/VT317/VT325 series? Are there any valves that can be used as either N.C. or N.O.?

In order to use the VT307V in a vacuum line, how should the piping be connected when workpieces are to be adsorbed when energized and air is to be released (vacuum break) when de-energized?

The VO307 cannot be found on the SMC website. Why?

What are the polarities when electrically connecting DC type VT307/VT315/VT317/VT325 series valves?

In order to retrofit a VHS series pressure relief 3-port valve on the outlet side of an AW series filter regulator or an AC series F.R.L. combination, what type of fitting is required?

Is there a bracket for VHS series pressure relief 3-port valves?

Is there a VHS series pressure relief 3-port valve with a silencer?

What type of product is the VEX series power valve?

What type of product is the VEX1 □0□ series regulator valve?

What type of product is the VEX3□□□ 3-port 3-position valve?

What type of product is the VEX1 □3□ precision regulator?

Is it possible to install a non-standard pressure gauge on a VEX1 □3□ series precision regulator?

Are there 3-way valves that can switch between the vacuum line and the positive pressure line of a vacuum pump?

Is it normal for air to be constantly leaking from the PE port of a VEX1 □3□ series precision regulator?

Are there any 2 or 3-port hand valves with One-touch fittings?

Can VHK3 series 3-port valves be used to switch between vacuum supply and an atmosphere induction?

What are the part numbers of the following VHK series finger valves? ① The 3-way valve with a φ10 One-touch fitting on the IN and OUT sides ② The 2-way valve with a R1/4 male thread on the IN side and a φ6 One-touch fitting on the OUT side

What is the difference between VHK series 2-port valves and 3-port valves? Also, where is the VHK3 series valve’s exhaust port?

What is the piping situation of VH series hand valves?

What is the flow path of VH series hand valves?

What is the model selection method for VH series hand valves?

Is it possible to replace parts of a VH series hand valve, such as the handle?

Did the ISO standard valve series change from the VS7/VP7 series to the VQ7 series? Are the valves interchangeable?

What parts are needed to increase the number of stations on a VV71/VV72 series ISO standard manifold?

Can a VQ7-□-FPG perfect valve hold a cylinder at an intermediate position longer than a VQ7-□-FHG (metal seal)?

What are the Rc1/8 ports with an “X” and a “Y” engraved on them on the VQ7 series sub-plate used for? Also, do the Rc1/8 ports with a “PA” and a “PB” engraved on them above the manifold base exhaust port need to be piped?

What are the gasket (which goes between the valve and the base) part numbers for VS7/VP7 series and VQ7 series ISO standard valves?

What is the part number of the SQ1000/2000 series manifold SI unit?

Can a solenoid valve mounted on an SQ series manifold be replaced? If so, how?

Can the blanking plate mounted on an SQ series manifold be removed in order to mount another valve?

How do I increase the number of stations on an SQ series manifold?

What is the difference between new and old SQ series solenoid valves?

What is the current part number of the SQ2231DY-5-C6?

Is there a seal kit for maintenance for SQ series solenoid valves?

How many solenoid valves can be installed on an SQ series plug-in type manifold?

What are 4-position dual 3-port valves, such as those of the SJ, SQ, and SY series?

While I understand that the V4000 series has been discontinued, is it still possible to sell the products and their components?
If they cannot be sold, what have they been replaced with?

While I understand that the V4000F series has been discontinued, is it still possible to sell the products and their components?
If they cannot be sold, what have they been replaced with?

What can a V4000 series valve with an “-X∗∗” suffixed to the part number be replaced with?

What is the wiring method for VFS series 5-port valves?

What is the wiring method for VFR series 5-port valves?

Is it possible to order a VFS or VFR series valve without a sub-plate? If so, what is the part number?

Can I replace only the VFS or VFR series valves mounted on a manifold?
If so, what is the part number?

Is it possible to replace a VFS3100-5FZ mounted on a manifold base or sub-plate with a VFS3200-5FZ? Also, will the circuitry change?

Does the VFS series perfect type valve have a smaller effective area due to the perfect spacer?

What are the part numbers “VVFS2000-22A-1” and “VVFS2000-22A-2” for?

While using a VFS4300-5FZ-03 closed center type cylinder to perform intermediate stops, the stop position has shifted over time. Are there any ways to prevent this?

What is the allowable voltage fluctuation range of the VFS and VFR series power supply?

How is the voltage indicated in VFS and VFR series valve part numbers?
For example, what is the voltage of a VFR3210-2DZ-03?

What are the PE and X ports of VFS and VFR series valves for? Can these ports be plugged?

What is the difference between VFS and VFR series internal and external pilots?

What is the “direct manual override” body option for VFS and VFR3000/4000/5000/6000 base mounted valves?

What is the part number of the DIN connector used for VFS and VFR series valves?

What is the cable outer diameter and terminal used for VFS and VFR series DIN terminals?

Is it normal for the coils of a VFS2100 valve to get so hot that they cannot be touched by hand?

What is the difference between plug-in and non plug-in type VFS and VFR series (base mounted) valves?

Is it possible to supply pressure from the A and B ports of a VFS or VFR series solenoid valve to remove 2 types of pressure from the P port (SUP port)?

For VFS or VFR series 2-position valves, can either the A or B port be plugged in order to use it as a 2-port or 3-port valve?

I want to replace a VT301 (VO301) series valve with one of the current products. What is the current part number?

I want to replace a VT307 (VO307) series valve with a new VT307 (VO307) series valve. Are they interchangeable?

Can VT307, VT317, and VT325 series valves be used for low vacuum or air blow applications?

Can VT307, VT317, and VT325 series valves be used as selector valves for switching between low and high pressure?

What is the power consumption and current consumption for the 24 VDC type of the VT307, VT315, VT317, and VT325 series?

Is it possible to use only 1 normally open VO307 series valve on a VV307 series manifold base (VT307 series manifold specification)?

What is the response time and max. operating frequency of SMC valves?

What is the difference between old and new VQZ series valves? Also, are they interchangeable?

Is the old VQZ series L/M type plug connector interchangeable with that of the new VQZ series?

What is the L/M type plug connector assembly part number of the new VQZ series?

What are the part numbers of the silencer and fitting (exhaust port mounting, thread size G 1/16) for VQZ200 and VQZ2000 series body ported valves? Also, what silencer is used for the VQZ100/1000 and VQZ300/3000 series?

What are the VS4120 and VS4130 series valve part numbers for replacement?

Can standard VS4120, VS4130, and VS4140 series valves still be ordered?
Also, are the VS4□20, VS4□30, and VS4□40 series catalogs still viewable?

What is the wiring of VS4120, VS4130, and VS4140 (as well as VS3135 and VS3145) series valves?

Can standard VS3135 and VS3145 series valves still be ordered? If not, what can they be replaced with?

Can VSA3135 and VSA3145 series air operated valves as well as VSA4□20, VSA4□30, and VSA4□40 series air operated valves still be ordered?

What can discontinued VS3125 and VS4125 series valves be replaced with?
Also, are the VS3125 and VS4125 series catalogs still viewable?

When the SX3000/5000/7000 series was discontinued, what valves were they replaced with?

After changing an old VF3140-1DZ to the current VF3140-1DZ1, the valve no longer turns OFF. The solenoid valve is driven by TRIAC output. What are the possible causes of this?

After changing an old VP542-1DZ-03A to the current VP542-1DZ1-03A, the valve no longer turns OFF. The solenoid valve is driven by TRIAC output. What are the possible causes of this?

After changing an ISO standard VS7-6-FG-S-1* to a VQ7-6-FG-S-1*, the valve no longer turns OFF. The solenoid valve is driven by TRIAC output. What are the possible causes of this?

What does the “E” or “N” at the beginning of a valve part number mean (e.g., EVT3, NVT3, etc.)?

What can an old VF2000 series valve be replaced with, and what are the part numbers? (VF2100, VF2110, VF2120, VF2130, VF2200, VF2210, VF2220, VF2230, etc.)

What are the part numbers of the gaskets for between the VQC1000/2000/4000/5000 series valves and base?

Can only the coils of a VT3 (VO3), VK3, or VKF3 series valve be replaced? If so, what are the part numbers?

When ordering a single unit replacement valve for use in an SY series manifold, how can I determine which valves come with a gasket?

What are the gasket part numbers for each SY3000/5000/7000/9000 series manifold variation?

What are the gasket part numbers for each plug-in type SY3000/5000/7000 series manifold variation?

What are the part numbers of the pilot valves of SY3000/SY5000/SY7000/SY9000 series valves?

Can the pilot valves (solenoid assembly) of SV, SQ, SZ, SX, SY, SYJ, VK, VF, VFR, VFS, VP4□50/4□70, VP300/500/700, VG342, VP3145/3165/3185, and VT3 series valves be replaced?

What can a VP4125 or VP4225 series 5-port solenoid valve be replaced with? The part number on the valve label has an “-X52” suffix. Also, are the VP4125 and VP4225 series catalogs still viewable?

For the VQZ100 series 3-port solenoid valve, what are the functional differences between the type with a poppet seal and the type with a rubber seal?

There are some VM100/200 series mechanical valves with only “VM13” (“VM12”) or “VM23” (“VM22”) indicated on the product label. Is it possible to order a replacement with this part number alone?

Are there any VM series mechanical valves with foot pedal control?

What is the difference between new and old VM100/200 series mechanical valves? Also, are they interchangeable?

For VM series 3-port mechanical valves, is there a N.O. (normally open) type available?

Are there any VM series mechanical valves that can be locked (held) by push buttons?

How do I connect the piping to a VM series 2/3-port mechanical valve?

Is it possible to replace only the operating parts (actuators), such as the push button and selector, of VM/VZM/VFM series mechanical valves? If so, what are the part numbers?

Does the VM100/200 series 3-position selector type mechanical valve return to its original state when you release it? Or is it a self-holding type?

Can a VP517/717 series residual pressure relief 3-port solenoid valve be modularly connected to an AC-B series modular F.R.L. unit?

Is a piping adapter required for VP517/717 series residual pressure relief 3-port solenoid valves?

Can VP517/717 series residual pressure relief 3-port solenoid valves be used for reverse flow (model symbol “-R”) if the body IN/OUT is reversed?

Is the direction of the VP517/717 series residual pressure relief 3-port solenoid valve DIN connector changeable?

Can VP517/717 series residual pressure relief 3-port solenoid valves be continuously energized?

What protocols and specifications are available for the SI unit mounted on SQ1000/2000 series manifolds?