Circor IMO GA Series Installation And Service Instruction Download Page 10

10

www.imo.se

GA

 0601.03 en-GB, ID-No.: 901930331, 161-490/A

Dismantling, replacement of components and 

reassembly, GAD

626

609

605

608

601

451

Fig. 18

Fig. 19

Fig. 20

Fig. 21

•  Remove the valve from the system. Use appropriate vessels to collect oil spillage when removing 

and opening the valve. 

•  Remove the cap 

626 and the nut 

609 and unscrew 

the set screw 608 a 

few turns until you 

see the O-ring 605. 

Replace the O-ring 

if necessary.

•  Loosen and remove the screws 451. Re

-

move the valve cover 601 and collect the 

valve assembly.

A.

B.

C.

D.

213

623

(for

T008)

615

(for T008)

612C

213

612C

615

(T040)

(T075)

(T100)

Fig. 22

E.

If you need another pressure range:
•  Remove the retaining ring 213 with a pair 

of pliers.

•  Remove the spring washer 612C and the 

stop washer 623 (for T008).

•  Remove the spring 615.

•  Mount the washers 

according to fig. 7 at 

page 7 or the T008 

spring. 

•  Mount (the washer 623 

if you mount the T008) 

the spring washer 

612C and the retaining 

ring 213.

Spring size change, D+E

Summary of Contents for IMO GA Series

Page 1: ...up Trouble shooting 4 Sectional view 5 List of components Ordering code 6 Useful tools GAD springs 7 GAR GAS dismantling reassembly 8 GAD dismantling reassembly 10 Before commencing any work read thi...

Page 2: ...s GAD 065 DIN flanged pipe connections Identification of safety instructions Non compliance of safety instructions identified by the following symbol could affect safety for persons Safety instruction...

Page 3: ...tions to avoid danger are to be taken Pressure testing and flushing The system must be flushed and pressure tested before connecting the valve If corrosive liquid such as water is used for the test th...

Page 4: ...ring Pressure too low What to do Problem Cause Pressure too high Pressure is fluctuating Hunting Pressure accumulation too big Pressure drops below set value when overflow increases The pressure relie...

Page 5: ...GAS Fig 4 Fig 5 646 648 647 608 609 605 626 658 601 497A 497B 4800 614 618 625 617 451 615 612B 602 612A 212 497 497C 537 537A 612C 213 623 626A 626 609 6010 611 615 451 602 612 617 618 625 614 480 64...

Page 6: ...GAS T075 136069 136093 136127 136150 GAS T100 189495 145409 143867 144394 GAD T008 132928 GAD T040 132902 GAD T075 132894 GAD T100 132910 423 O ring 152447 016717 016733 016782 602 O ring 016741 01676...

Page 7: ...213 612C 623 615 213 612C 615 213 612C 615 213 612C 615 T008 T040 T075 T100 1 Valve spring 26 Washers 25 Washers 32 Washers GAD spring 615 Assembly drawings Fig 7 O rings Range 2 8 bar Range 6 40 bar...

Page 8: ...oving and opening the valve C Fig 10 Loosen screws 451 Remove valve cover 601 and collect the washers 611 and 612 and the valve spring 615 611 615 612 601 451 Fig 9 617 618 625 614 Carefully pull out...

Page 9: ...609 Unscrew the set screw 608 and replace the O ring 605 Fit the set screw 608 back into place again Grease the new O ring before mounting it I Reassemble in reversed order Put the valve back into the...

Page 10: ...the O ring 605 Replace the O ring if necessary Loosen and remove the screws 451 Re move the valve cover 601 and collect the valve assembly A B C D 213 623 for T008 615 for T008 612C 213 612C 615 T040...

Page 11: ...ts Check the poppet 614 especially the groove for the retaining ring 212 Replace it if damaged Fig 24 Fig 25 Fig 26 Replace the O ring 602 if necessary Lubri cate the new O ring before mounting it 646...

Page 12: ...12 www imo se GA 0601 03 en GB ID No 901930331 161 490 A Adress IMO AB PO Box 42090 126 14 Stockholm Sweden...

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