OMC KA30 Series Installation, Operation And Maintenance Manual Download Page 3

Installa on, Opera on and Maintenance Manual KA30‐en  Rev.04/2018 

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OMC s.r.l.  Via G. Galilei, 18 - 20060 - Cassina de Pecchi (MI) - ITALY - www.omcsrl.com - Tel.: (+39) 02.95.28.468                                       

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1.0 SAFETY INFORMATION 

The  safe  operation  of  this  product  is  ensured  only  if  it  is  installed,  commissioned,  used  and  maintained  in  an 
appropriate way by qualified personnel in compliance with the operating instructions. 

1.01 INTENDED USE 

Verify that the actuator is suitable for the intended use and application by controlling: 

- that the material of which the valve is made up of is compatible with the process fluid; 

- that the valve is suitable to the pressures and temperatures of the process fluid; 

-  to  have  arranged  a  suitable  safety  device  which  prevents,  in  case  of  valve  malfunctioning,  any  hazardous 
overpressures or overtemperatures. 

The  OMC  valves  are  not  intended  to  withstand  any  external  stresses  which  can  be  induced  by  the  systems  in 
which they are inserted. The installer must take account of these stresses and take the appropriate measures. 

1.02 ACCESS 

Ensure a safe access and, if required, a safe working platform (with a suitable protection) before operating on the 
product. Arrange the suitable lifting means, if required.

 

1.03 LIGHTING 

Ensure a lighting which is suitable to the required type of work. 

1.04 HAZARDOUS FLUIDS IN THE PIPE 

Take account of the content of the pipe or anything it may have previously contained. Be careful to: flammable 
materials, substances hazardous for the health, temperature extremes. 

1.05 ENVIRONMENTAL SITUATIONS 

Take  account  of:  areas  at  risk  of  explosion,  lack  of  oxygen  (such  as  tanks,  wells,  etc.…),  hazardous  gases, 
temperature  limits,  high  or  low  temperature  surfaces,  risk  of  fire  (for  example  during  welding  operations), 
excessive noise, moving machines. 

1.06 TEMPERATURE 

Wait until the temperature normalizes after the interception to prevent any risks of burn or freezing. 

1.07 SYSTEM  

Take account of the possible effects on the whole expected working system.  

May the intended measure put the other parts of the system or the personnel at risk? 

Make sure that the shut-off valves are gradually activated in order to prevent any abrupt variations to the system. 

1.08 PRESSURIZED SYSTEMS 

Make  sure  that  the  pressure  is  isolated  and  discharged  to  the  atmospheric  pressure  in  safe  conditions.  Take 
account of a double insulation (double block and vent) and the blocking or the labelling of the closed valves. Do 
not  consider  the  system  depressurized  even  if  the  pressure  gauge  indicates  zero  pressure.

                     

During the operation the valve is pressurized. Before performing any maintenance operation or action on 
the flanges and closing caps, make sure that the line is depressurized (0 bar) and at ambient temperature. 

Summary of Contents for KA30 Series

Page 1: ...lei 18 20060 Cassina de Pecchi MI ITALY www omcsrl com Tel 39 02 95 28 468 Our products are manufactured under ISO 9001 Quality Assurance System approved by CSQ certified under no 9190 OMC2 FIRST ISSU...

Page 2: ...07 SYSTEM 1 08 PRESSURIZED SYSTEMS 1 09 TOOLS AND CONSUMABLE PARTS 1 10 PROTECTION CLOTHES 1 11 QUALIFICATION OF OPERATORS IN CHARGE OF THE WORKS 1 12 HANDLING 1 13 FREEZING 1 14 OTHER RISKS 1 15 DIS...

Page 3: ...ng means if required 1 03 LIGHTING Ensure a lighting which is suitable to the required type of work 1 04 HAZARDOUS FLUIDS IN THE PIPE Take account of the content of the pipe or anything it may have pr...

Page 4: ...performed and supervised by some skilled trained and competent personnel 1 12 HANDLING Use suitable lifting means for the handling of the products by assessing all the risks concerning the lifting the...

Page 5: ...Use the by pass valve pos D Pic 1 to manually regulate the process when the control valve is temporarily disconnected The two shut off valves must have the same internal diameter of the control valve...

Page 6: ...1 PNEUMATIC ACTUATOR CONNECTION The pneumatic actuator is provided with two 1 4 NPT connections one of which is closed by a filter Connect the control air pipe to the connection which has remained fre...

Page 7: ...for any other need always refer to the above mentioned number During the operation the valve is pressurized Before performing any maintenance operation or action on the flanges and closing caps make...

Page 8: ...age 5 Replace the sealing gasket of the balancing piston 8 by unscrewing the guide 6 If required unscrew and replace the seat 2 by using the specifc wrenches Insert in the bonnet 9 the new plug by pay...

Page 9: ...screw 1 Remove the upper packing gland 2 Remove the spring 3 Remove the lower packing gland 4 Replace the O ring 5 if provided Carefully clean the housing chamber and grease it with silicone oil Inse...

Page 10: ...pproved by CSQ certified under no 9190 OMC2 FIRST ISSUE 1994 08 04 OMC s r l Via G Galilei 18 20060 Cassina de Pecchi MI ITALY www omcsrl com Tel 39 02 95 28 468 ENGLISH 5 0 TIGHTENING TORQUES VALVE D...

Page 11: ...68 Our products are manufactured under ISO 9001 Quality Assurance System approved by CSQ certified under no 9190 OMC2 FIRST ISSUE 1994 08 04 ENGLISH 8 9 Pic 18 Valves 3 4 1 5 7 Pic 17 Valves 1 2 2 6 V...

Page 12: ...maged parts Periodically verify any phenomena of internal and or external corrosion and or erosion as they may significantly damage the pressurized parts by locally reducing the thickness and as a con...

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