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No.VQC1000V-OMM0002-B 

VQC1000/2000 Series 

Precautions  for  5  Port  Solenoid  Valve 

 

 

Be sure to read before handling. 

 

  [Metal seal] 

1) These valves can be used without lubrication. 
2)

 

If  a  lubricant  is  used  in  the  system,  use  class  1  turbine  oil  (no 

additives), ISO VG32. For details about lubricant manufacturers’ 
brands,  refer  to  the  SMC  website.  Additionally,  please  contact 
SMC  for  details  about  class  2  turbine  oil  (with  additives)  ISO 
VG32. 

2. 

Lubrication amount

 

If  the  lubrication  amount  is  excessive,  the  oil  may  accumulate 
inside the pilot valve, causing malfunction or response delay. 
So, do not apply a large amount of oil. When a large amount of oil 
needs to be applied, use an external pilot type to put the supply 
air on the pilot valve side in the non-lube state. This prevents the 
accumulation of oil inside the pilot valve. 

 

Air Supply 

 
 

1. 

Type of fluids 

    Please consult with SMC when using the product in applications 

other than compressed air. 

2.

 When there is a large amount of drainage. 

    Compressed  air  containing  a  large  amount  of  drainage  can 

cause  the  malfunction  of  pneumatic  equipment.  An  air  dryer  or 
water separator should be installed upstream from filters. 

3.

 Drain flushing 

If condensation in the drain bowl is not emptied on a regular basis, 
the  bowl  will  overflow.  This  may  cause  the  malfunction  of 
pneumatic equipment. 
If the drain bowl is difficult to check and remove, the installation of 
a drain bowl with an auto drain option is recommended. 

For compressed air quality, refer to the SMC Best Pneumatics No. 
6 catalog. 

4. Use clean air 

Do not use compressed air that contains chemicals, synthetic oils 
that include organic solvents, salt, corrosive gases, etc., as it can 
cause damage or malfunction.

   

 

 

1.  When  extremely  dry  air  is  used  as  the  fluid, 

degradation of the lubrication properties inside 
the  equipment  may  occur,  resulting  in  reduced 
reliability  (or  reduced  service  life)  of  the 
equipment. Please consult with SMC. 

2. Install an air filter. 

Install  an  air  filter  upstream  near  the  valve.  Select  an  air  filter 
with a filtration size of 5 μm or smaller. 

3.  Take  measures  to  ensure  air  quality,    such  as 

by  installing  an  aftercooler,  air  dryer,  or  water 
separator. 

Compressed  air that contains  a  large  amount  of  drainage can 
cause the malfunction of pneumatic equipment, such as valves. 
Therefore,  take  appropriate  measures  to  ensure  air  quality, 
such  as  by  providing  an  aftercooler,  air  dryer,  or  water 
separator. 

4.  If  an  excessive  amount  of  carbon  powder  is 

present, install a mist separator on the upstream 
side of the valve. 

If excessive carbon dust is generated by the compressor, it may 

adhere to the inside of a valve and cause it to malfunction. 

For compressed air quality, refer to the SMC Best Pneumatics No. 
6 catalog. 
 
 

Operating Environment 

 
 

1.  Do  not  use  in  an  atmosphere  containing  corrosive  gases, 

chemicals, sea water, water, water steam, or where there is direct 
contact with any of these. 

2.  Products  with  IP65  and  IP67  enclosures  (based  on  IEC60529) 

are protected against dust and water. 

However, these products cannot be used in water. 

3.  Products  compliant  with  IP65  and  IP67  satisfy  the  product 

specifications when mounted properly. 

Be sure to read the precautions for each product. 

4. Do not use in an environment where flammable gas or explosive 

gas exists. Usage may cause a fire or explosion. The products do 
not have an explosion proof construction. 

5. Do not use in a place subject to heavy vibration and/or shock. 
6.  The  valve  should  not  be  exposed  to  prolonged  sunlight.  Use  a 

protective cover. Note that the valve is not for outdoor use. 

7. Remove any sources of excessive heat. 
8.  If  it  is  used  in  an  environment  where  there  is  possible  contact 

with oil, weld spatter, etc., exercise preventive measures. 

9.  When  the  solenoid  valve  is  mounted  in  a  control 

panel  or  it’s 

energized  for  a  long  period  of  time,  make  sure  the  ambient 
temperature is within the specifications of the valve. 

 

 

1. 

Temperature of ambient environment 

Use  the  valve  within  the  range  of  the  ambient  temperature 
specification of each valve. In addition, pay attention when using 
the  valve  in  environments  where  the  temperature  changes 
drastically. 

2. 

Humidity of ambient environment 

  When using the valve in environments with low humidity, take 

measures to prevent static. 

  If the humidity rises, take measures to prevent the adhesion of 

water droplets on the valve. 

 

Maintenance 

 
 

1. Perform maintenance and inspection according 

to  the  procedures  indicated  in  the  operation 
manual. 

If  handled  improperly,  human  injury  and/or  malfunction  or 
damage of machinery and equipment may occur. 

2.  Removal  of  equipment,  and  supply/exhaust  of 

compressed air 

Before  components  are  removed,  first  confirm  that  measures 
are  in  place  to  prevent  workpieces  from  dropping,  run-away 
equipment, etc. Then, cut off the supply air and electric power, 
and exhaust all air pressure from the system using the residual 
pressure release function. 
For the 3-position closed center, exhaust the residual pressure 
between the valve and the cylinder. 
When  the  equipment  is  operated  after  remounting  or 
replacement, first confirm that measures are in place to prevent 
the lurching of actuators, etc. Then, confirm that the equipment 
is operating normally. 
In  particular,  when  a  2-position  double  solenoid  valve  is  used, 
releasing residual pressure rapidly may cause the spool valve to 
malfunction,  depending  on  the  piping  conditions,  or  the 
connected actuator to operate. 
 
 
 

Warning 

Caution 

Warning 

Warning 

Caution 

Summary of Contents for VQC1000

Page 1: ...Doc No VQC1000V OMM0002 B PRODUCT NAME Solenoid Valve MODEL Series VQC1000 2000 Series Pilot Valve V100...

Page 2: ...2 3 Precautions on Design 4 5 Selection 4 5 Mounting 5 Piping 5 6 Wiring 6 Lubrication 6 7 Air Supply 7 Operating Environment 7 Maintenance 7 8 Specific Product Precautions 9 15 Valve construction 16...

Page 3: ...f equipment failure when configuring the equipment 2 Only personnel with appropriate training should operate machinery and equipment The product specified here may become unsafe if handled incorrectly...

Page 4: ...re of the product 3 Prior to using SMC products please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products 2 Vacuum pads are excluded from...

Page 5: ...sticking to the adsorption pad or air leakage causing the workpiece to drop 9 Regarding vacuum switch valves and vacuum release valves If a non vacuum valve is installed in the middle of a piping sys...

Page 6: ...n internal pilot type valves and external pilot type valves are used on the same manifold Additionally when compressed air within the pressure range of the established specifications is supplied to th...

Page 7: ...reference value for the tightening torque refer to the table below 2 The gasket can be reused up to 6 to 10 times It can be replaced easily when it has sustained damage A broken gasket can be removed...

Page 8: ...alve and cause it to malfunction For compressed air quality refer to the SMC Best Pneumatics No 6 catalog Operating Environment 1 Do not use in an atmosphere containing corrosive gases chemicals sea w...

Page 9: ...n the valve to confirm the operating condition and check for any air leakage 1 Drain flushing Remove drainage from the air filters regularly 2 Lubrication In the case of rubber seals once lubrication...

Page 10: ...ON side with a small flat head screwdriver or with your fingers Slide it to the fitting side OFF side to release it In addition it can also be used as a push type by using a screwdriver etc of 1 7 or...

Page 11: ...rings must be free from scratches and dust Otherwise air leakage may result 2 After screwing in the fittings mount the M5 fitting assembly on the manifold base Tightening torque 0 8 to 1 2 N m 3 Purc...

Page 12: ...ated in the end plate on both sides of the manifold base A dirty and choked element may reduce cylinder speed or cause malfunction Clean or replace the dirty element How to Calculate Flow Rate Convers...

Page 13: ...ide waterproof caps when there are unused ports and perform proper mounting of input units input blocks SI units and manifold valves Provide a cover or other protection for applications in which there...

Page 14: ...kely damage the product IP67 protection class cannot be guaranteed if the screws are not tightened to the specified torque 4 When lifting a large size manifold solenoid valve unit take care to avoid c...

Page 15: ...a surge generating load is directly driven the unit may be damaged 7 The product is CE marked but not immune to lightning strikes Take measures against lightning strikes in your system 8 Keep dust wir...

Page 16: ...units take care not to get fingers caught between units Injury can result 2 Perform periodic inspection Unexpected malfunction in the system composition devices is likely to occur due to malfunction o...

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Page 32: ...e measures 2 Leakage current When the power turns off the valve can t be switched due to residual voltage Confirm the residual voltage is follows DC is 3 or less of rated voltage 3 Failure of pilot va...

Page 33: ...these items and replace part and re wire positively 2 4 Packing of one touch fitting is damaged Replace with one touch fitting 3 Air leaks through exhaust port R port Note The valve with metal seal a...

Page 34: ...truction Manifold Options 2020 7 4 14 1 Sotokanda Chiyoda ku Tokyo 101 0021 JAPAN Tel 81 3 5207 8249 Fax 81 3 5298 5362 URL http www smcworld com Note Specifications are subject to change without prio...

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