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Handling instructions and precautions

Attaching and detaching tubes

  Confirm that the cut surface of the tube is cut straight across, 

that  the  outer  surface  of  the  tube  is  not  damaged,  and  that 
the tube has not become oval shaped.

  When connecting tubes, if you do not insert the tube all the 

way to the tube end, it may result in leaks.

  After  installing  the  tube,  pull  on  it  to  check  that  it  does  not 

come off.

  Do  not  meaninglessly  press  on  the  release  ring  before 

attaching  a  tube.    Doing  so  may  cause  the  tube  to  become 
detached.

 

Precautions for removing tubes

  Before removing tubing, be sure to confirm that the pressure 

inside the tubing is zero.

  Uniformly  press  the  release  ring  inwards  as  far  as  it  goes 

and then pull out the tubing.  If you do not fully press in on the 
release  ring,  the  tube  may  not  come  out,  or  the  tubing  may 
become scratched causing debris to be left inside the fitting.

The  safety  precautions  for  the  speed  controllers  with  quick 
fittings  are  shown  below.    Be  sure  to  read  the  material  in  the 
front  of  the  General  Personal  Catalog  regarding  safety 
precautions other than those below.

Safety precautions (speed controllers with quick fittings)

WARNING

 Air  control  direction  varies  depending  on  the  product.  Before 

using  a  product,  confirm  the  direction  as  noted  in  this 
document and by identifying the product.  Orienting the control 
direction  incorrectly  creates  the  risk  of  personal  injury  and 
machine damage.

 When  adjusting  the  speed  of  the  actuator,  start  with  the 

product's  needle  fully  closed  and  then  gradually  open  it  to 
adjust the speed.  There is a risk of the actuator popping out if 
the needle is open.  Note that the needle closes when turned 
to the right and opens when turned to the left.

 Do  not  forcibly  twist  or  rotate  products  with  rotating  plastic 

bodies.  Doing so causes a risk of leakage or damage to the 
body.

CAUTION

 Speed  controllers  have  an  allowable  leakage,  so  do  not  use 

them if zero leakage is required.

Tube end

 

Precautions for mounting fitting

 

Precautions for attaching tubes

 

  Use the appropriate tool to tighten the hex nuts on the fitting.

  Refer  to  the  following  table  of  recommended  tightening 

torques when attaching the threaded parts.  If you use more 
than the recommended torque when tightening the threaded 
parts,  you  may  cause  leaks  by  fracturing  the  threads  or 
deforming  the  gaskets.    Also,  if  you  use  less  than  the 
recommended  torque  when  tightening  the  threaded  parts,  it 
may result in looseness or leaks.

 

Precautions for disconnecting fittings

 

  Use  the  appropriate  tool  to  remove  the  hex  nuts  from  the 

fitting.

  Remove the sealant from the threads on the other parts.  If 

the  sealant  is  stuck  to  the  other  parts,  it  may  get  into 
peripheral devices and cause a malfunction.

NOTE

The  sealant  on  the  quick  fittings  can  be  reused  multiple 
times, as is. However, the sealant may stick to the threaded 
parts  of  other  devices.    Be  sure  to  clean  the  inside  of  the 
female threads on the devices.

Metric thread

Tapered threads 

for pipes

Thread type

Thread size

M3

×

0.5

0.7 N

m [6.196 in

lbf]

1.5

1.9 N

m [13.277

16.817 in

lbf]

7

9 N

m [61.957

79.659 in

lbf]

12

14 N

m [106.212

123.914 in

lbf]

22

24 N

m [194.722

212.424 in

lbf]

28

30 N

m [247.828

265.530 in

lbf]

M5

×

0.8

R1/8
R1/4
R3/8
R1/2

Tightening torque

Recommended tightening torque

 

Tightening threaded parts

 Tightening threaded parts

  Use  a  wrench  on  the  hex  nut  to 

tighten the threaded parts.

When tightening hex nuts

 

How to attach and detach tubes

 Attaching tubes

  The  quick  fitting  speed  controller 

is  equipped  with  a  lock  claw  that 
holds  the  tube  in  place  when  it 
has  been  pushed  all  the  way  to 
the  end,  and  with  an  elastic 
s l e eve  fo r  s e a l i n g  t h e  t u b e 
periphery.

 Removing tubes

  When  removing  a  tube,  pressing 

the  release  ring  opens  the  lock 
claw  and  the  tube  can  be  pulled 
out.

  Be  sure  to  turn  off  the  air  before 

removing tubes.

d

d

c

Mounting

 When tightening the lock nut on a product, tighten it firmly by 

hand  without  using  a  tool.   The  lock  nut  or  body  may  be 
damaged  if  tightened  with  a  tool.    However,  if  it  is  not  firmly 
tightened,  the  lock  nut  may  become  loose  and  deviate  from 
the initial settings.

03̲2016

Summary of Contents for SSU4

Page 1: ...g pressure range 0 05 MPa 7 psi Cracking pressure Operating temperature range Recommended tube Sales unit Union Straight type Remarks Gasket or seal is already attached Elastic sleeve NBR Sealant coated Tube Release ring Polyacetal Lock claw Stainless steel Tube end Plastic body Polybutylene terephthalate Metal body Brass electroless nickel plated For M3 threads SUS303 equivalent Lock nut Aluminum...

Page 2: ...ock on hand The SSU M is the replacement model Dimensions mm Union straight SSU 2 φD 2 φP F3 F2 B1 F1 2 C B2 B3 E 2 φd Model Tube outer diameter φD B1 B2 B3 φP E C φd F1 F2 F3 Mass g MAX MIN SSU4 4 28 6 25 9 20 4 20 4 10 5 11 14 9 3 2 14 6 5 6 5 13 SSU6 6 42 5 36 5 24 9 24 9 13 15 16 9 4 3 20 8 5 11 29 SSU8 8 47 3 41 1 27 4 27 4 15 18 18 1 4 3 22 9 5 12 43 SSU10 10 53 5 45 9 31 7 31 7 18 21 20 7 4...

Page 3: ...on straight SSU 2 φD 2 φP F3 F2 B1 F1 2 C B2 B3 E 2 φd Model Tube outer diameter φD B1 B2 B3 φP E C φd F1 F2 F3 Mass oz MAX MIN SSU4 0 157 1 126 1 020 0 803 0 803 0 413 0 433 0 587 0 126 0 551 0 256 0 256 0 459 SSU6 0 236 1 673 1 437 0 980 0 980 0 512 0 591 0 665 0 169 0 787 0 335 0 433 1 023 SSU8 0 315 1 862 1 618 1 079 1 079 0 591 0 709 0 713 0 169 0 866 0 374 0 472 1 517 SSU10 0 394 2 106 1 807...

Page 4: ...Pa Number of needle rotations Pressure MPa 0 1000 1500 500 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 500 1000 1500 1 2 3 4 5 6 7 8 9 10 11 12 13 0 7 0 5 0 3 0 1 Flow rate R min ANR Flow rate R min ANR Controlled flow Free flow MPa Number of needle rotations Pressure MPa Flow Rate Characteristics Union Straight Type SSU4 SSU6 SSU8 SSU10 SSU12 End of March 2015 Sales limited to stock on hand The SSU M is th...

Page 5: ...Tube end Precautions for mounting fitting Precautions for attaching tubes Use the appropriate tool to tighten the hex nuts on the fitting Refer to the following table of recommended tightening torques when attaching the threaded parts If you use more than the recommended torque when tightening the threaded parts you may cause leaks by fracturing the threads or deforming the gaskets Also if you use...

Page 6: ... 3 150 27 1 063 150 5 9 35 1 378 mm in NOTE 1 Use tubing with an exterior that is not damaged If tubing becomes damaged after repeated use cut off the damaged portion 2 Do not allow tubing to become severely bent or twisted near the connection to a fitting Such a condition creates the risk of air leakage The table below shows minimum radius guidelines for nylon and urethane tubing 3 Do not use ext...

Page 7: ...sure type meter out BK Low pressure type meter in AG High flow rate type meter out Text engraved on top of needle knob K Low pressure type White Standard meter out Low pressure type meter out Black Standard meter in Low pressure type meter in Mark on top of needle knob Needle knob Made of black plastic Mark on top of needle knob Needle knob Made of black plastic Needle knob Has one line Needle kno...

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