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Installa on, Use and Maintenance RD10‐RA10‐en Rev.08/2018

Page 1

OMC S.p.A: Via G. Galilei, 18 - 20060 - Cassina de Pecchi (MI) - ITALY - www.omcvalves.com - Tel.: (+39) 02.95.28.468

Our products a

re manufactur

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suranc

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, approve

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under nr.9

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IRST

SUE 1994/0

8/04

ENGLISH

INSTALLATION, OPERATION AND

MAINTENANCE MANUAL

Self-operated pressure reducers

RD10 / RA10

Содержание RD10

Страница 1: ...assina de Pecchi MI ITALY www omcvalves com Tel 39 02 95 28 468 Our products are manufactured under ISO 9001 Quality Assurance System approved by CSQ certified under nr 9190 OMC2 FIRST ISSUE 1994 08 0...

Страница 2: ...1 12 HANDLING 1 13 FREEZING 1 14 OTHER RISKS 1 15 DISPOSAL 1 16 RISK OF CORROSION AND OR EROSION 2 0 INSTALLATION 2 01 INSTALLATION OF THE VALVE ON THE PIPE 2 02 PRESSURE PIPE 2 03 PRESSURE GAUGES 2 0...

Страница 3: ...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 previ...

Страница 4: ...upervised 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 environment lo...

Страница 5: ...wly open the 7 shut off valve upstream to prevent any possible water hammer 2 01 INSTALLATION OF THE VALVE ON THE PIPE To ensure a uniform load and a uniform alignment the flange bolts must be gradual...

Страница 6: ...Pic A and Pic C and or ropes Pic B and Pic D Fig A Fig C Fig B Fig D ATTENTION The reducer balancing bellows Pic 8 Pos 15 and the actuator s diaphragm Pic 6 Pos 9 are subjected to wear Do not install...

Страница 7: ...ate in its lowest position The required downstream pressure must be calibrated in zero flow rate conditions or in normal operating conditions according to the requirements of the application and by ta...

Страница 8: ...ate 1 Pic 3 so as to fully unload the spring The pipe 4 Pic 1 and 2 of the downstream sensing line must be detached from the actuator ATTENTION The balancing bellows provided inside the reducer Pic 8...

Страница 9: ...fully unload the calibration spring by acting on the ring nut 1 Pic 3 close the downstream shut off valve Pic 1 and 2 Pos 7 wait until the whole pressure reducer reaches the ambient temperature loose...

Страница 10: ...from the reducer as described in chapter 4 03 fully decompress the spring 10 by acting on the ring nut 1 Pic 7 remove the ring nut 4 and remove the pin 11 remove in sequence the ring nut 12 the spring...

Страница 11: ...eplace it Chap 4 03 Sensing line pipe Pic 1 pos 4 obstructed Disassemble the pipe and clear it Actuator diaphragm Pic 6 pos 9 damaged Replace Chap 4 04 Plug or seat damaged Replace Chap 4 05 Bellows g...

Страница 12: ...e depends on the combination of the materials of which it is made up 8 0 REFERENCES OF THE EUROPEAN DIRECTIVE FOR PRESSURE EQUIPMENT 2014 68 EU VALVE BODY OF THE REDUCER RD10 PN16 PN25 PN40 CATEGORY F...

Страница 13: ...plug 5 Serial Valve serial number 6 T Maximum and minimum allowed temperatures of the process fluid 7 Fluid Process fluid 8 Kv Outflow coefficent of the valve 9 Yr Year of manufacture 10 Fluid Directi...

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