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Installation & Operation Manual

                                                        

 

 

 

 

 

 

 

 

 

 

Proven Quality since 1892

 

 

ECON check valves Fig. 2630-2631                    

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7.  Installation 

 

 

 
 
During the assembly of the ECON ball check valves, the following rules should be observed: 
 

  Make sure before an assembly that the valves were not damaged during the transport or 

storage. 

  Make sure that the applied valves are suitable for the working conditions, medium used in 

the plant and the right system connections, according to pressure and temperature limits. 

  When installing the ball check valves, ensure that the seat and the flange faces are 

clean. 

  When valves are provided with lifting lugs, plates or eye nuts, these must be used to lift 

the valve. 

  All special packaging material must be removed. 

  To ensure you use the correct sealing it is important to select the correct type of gasket 

for the medium concerned, gaskets with the correct flange size must be used. 

  In horizontal pipelines the valve must be installed so that the bolted cover is facing 

upward. (for version with sinking ball) 

  The valve must be installed with the direction arrow on the body coincident with the 

direction of flow in the pipeline. For vertical pipelines the flow direction should only be 
upwards. 

  Immediately prior to valve installation, the pipeline should be checked for cleanliness and 

free of debris. 

  Valve end protectors should only be permanently removed prior to installation. 

  Place valve between pipe flanges, and insert the bolts. 

  Tighten bolts loosely. 

  Tighten bolts in a diagonal sequence to ensure flanges are pulled up parallel. 

  Finally tighten bolts to correct torque levels 

  Before plant startup, especially after repairs carried out, flash out the pipeline. 

  After installation it is necessary to check the valve operation and tightness of all 

connections. A tightness test should be carried out. 

  Install pipelines so that damaging transverse, excessive vibrations, bending and tensional 

forces are avoided. 

        

 
 
 
 
 
 
 
 
 

Summary of Contents for ECON Series

Page 1: ...arry out such jobs and in any circumstance ensure personal safety 4 Transport and storage Transport and storage should always the valve should be protected against external forces influence and destruction of the painting layer as well The purpose of the painting layer is to protect the valve against rust during transport and storage The valves should be stored in an unpolluted space and should al...

Page 2: ...e correct flange size must be used In horizontal pipelines the valve must be installed so that the bolted cover is facing upward for version with sinking ball The valve must be installed with the direction arrow on the body coincident with the direction of flow in the pipeline For vertical pipelines the flow direction should only be upwards Immediately prior to valve installation the pipeline shou...

Page 3: ...ore starting any service jobs make sure that the medium supply to the pipeline is cut off pressure was decreased to ambient pressure the pipeline is completely cleaned and ventilated and the plant is cooled down Always keep safety instructions in mind and take all personal safety precautions ECON ball check valves do not require any special maintenance In certain cases it might be possible to repl...

Page 4: ...test should be carried out after installation the valve should be checked and maintained periodically at least every 3 months depending on the medium Replacement and or cleaning of ball check valve components Loosen the bolts of the bonnet 5 in a cross sequence and with correct tools in order to avoid damage to the components Proceed by lifting the bonnet For big sizes it is recommended to use ele...

Page 5: ...the bonnet 2 centered correctly in the opening of the body 1 take special care that the O ring is placed in correct position in order to avoid damage when fixing the bolts Finally start fixing the bolts 5 in a cross sequenced order 10 Troubleshooting It is essential that the safety regulations are observed when identifying the fault Problem Possible cause Corrective measures No flow Valve is insta...

Page 6: ...unifer large potential differences may occur possibly causing corrosion which could permanently damage the proper functioning and integrity of our product A combination of different materials should always be mentioned prior to the purchase of our products in order for us to give the best possible advise on a safe functioning General note for cast iron products Cast iron can be used for various ap...

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