OMC AD20 Installation, Operation And Maintenance Manual Download Page 1

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Installa on, Opera on and Maintenance Manual TD10/…

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UE 1994/08/04

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

ENGLISH

INSTALLATION, OPERATION AND

MAINTENANCE MANUAL

Three-way valves

Diverter valves Series AD10-AD20-TD10

Mixing valves Serie AM10-AD20- TM10

Summary of Contents for AD20

Page 1: ...Assurance System approved by CSQ certified under no 9190 OMC2 FIRST ISSUE 1994 08 04 OMC S p A Via G Galilei 18 20060 Cassina de Pecchi MI ITALY www omcvalves com Tel 39 02 95 28 468 ENGLISH INSTALLATION OPERATION AND MAINTENANCE MANUAL Three way valves Diverter valves Series AD10 AD20 TD10 Mixing valves Serie AM10 AD20 TM10 ...

Page 2: ...R RISKS 1 15 DISPOSAL 1 16 RISK OF CORROSION AND OR EROSION 2 0 INSTALLATION 2 01 ASSEMBLY OF THE VALVE ON THE PIPE 3 0 ACTUATOR CONNECTION 3 01 PNEUMATIC ACTUATOR CONNECTION 3 02 ELECTRIC ACTUATOR CONNECTION 4 0 MAINTENANCE 4 01 VALVE ACTUATOR SEPARATION 4 02 REPLACEMENT OF THE PLUG SEAT OF THE DIVERTER VALVE 4 03 REPLACEMENT OF THE PLUG SEAT OF THE MIXING VALVE 4 04 REPLACEMENT OF THE PLUG SEAT ...

Page 3: ...fting 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...

Page 4: ...e 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 environment load the individual and the circumstances of the work which is about to be performed CORRECT WRONG 1 13 FREEZING Protect the products against frozen in environments with temperatures lo...

Page 5: ...he three way valve The three shut off valves must have the same internal diameter of the control valve During the installation of the valve make sure that the flow in the pipe goes in the same direction as indicated by the arrow on the valve body The assembling position of the valve does not limit its operation but it is recommended to assemble the valve with the actuator pointed upward as other p...

Page 6: ...01 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 free The control air must be cleaned and de humidified and free from oils and greases and must not exceed an allowed maximum pressure The signal required to control the valve is provided on the plate fi...

Page 7: ...e above mentioned number 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 4 01 VALVE ACTUATOR SEPARATION By referring to Pic 5 for valves DN15 DN100 1 2 4 or to Pic 6 for valves DN125 DN200 6 8 perform the following operations Set the valve to...

Page 8: ...he valve body 6 Remove the stem 2 provided with the upper plug 9 from the bonnet 5 Unscrew the seats 7 and 8 by using the specific wrenches Remove the lower plug 10 If required replace the seats 7 and 8 Insert in the bonnet 5 the new plug group by paying attention to grease the stem with the silicone oil Always replace the body gasket 11 by carefully cleaning the supporting surfaces Re assemble ev...

Page 9: ...the valve body 6 Remove the stem 2 provided with the plugs 9 and 10 from the bonnet 5 Unscrew and replace the seats 7 and 8 by using the specific wrenches Insert in the bonnet 5 the new plug by paying attention to grease the stem with the silicone oil Always replace the body gasket 11 by carefully cleaning the supporting surfaces Re assemble everything by repeating the operations in the reverse or...

Page 10: ...e bellows 12 Separate the bonnet group 5 from the valve body 6 Separate the plug 9 from the stem 13 by removing the pin located on the stem 14 by unscrewing the pin Unscrew the seats 7 and 8 by using the specific wrenches Remove the lower plug 10 If required replace the seats 7 and 8 If required replace the bellows 12 and the gasket 15 by unscrewing the body 16 Attention The body 16 the stem 2 and...

Page 11: ...ak of the bellows 12 Separate the bonnet group 5 from the valve body 6 Unscrew the seat 7 by using the specific wrenches Remove the lower plugs 9 and 10 If required replace the seats 7 and 8 If required replace the bellows 12 and the gasket 15 by unscrewing the body 16 Attention The body 16 the stem 2 and the bellows 12 make up a single indivisibile component Always replace the body gasket 11 by c...

Page 12: ...he screw 1 Remove the upper packing gland 2 Remove the spring 3 Remove the lower packing gland 4 Replace the O ring 5 if present Carefully clean the housing chamber and grease it with silicone oil Insert the new packing gland as indicated in the picture corresponding to your model Screw the nut 1 but not completely Insert the plug by paying attention to grease the stem with the silicone oil Always...

Page 13: ...ITALY www omcvalves com Tel 39 02 95 28 468 ENGLISH 5 0 TIGHTENING TORQUES 2 4 Pic 19 3 5 1 VALVE DIAMETER SEAT 1 5 Nm 10 BONNET NUTS 2 Nm 10 NUTS 3 Nm 10 AD10 AM10 TD10 TM10 AD20 AM20 DN15 1 2 190 30 190 DN20 3 4 190 30 190 DN25 1 240 30 45 190 DN32 1 1 4 350 30 190 DN40 1 1 2 550 50 85 190 DN50 2 570 50 85 190 DN65 2 1 2 700 100 190 DN80 3 700 100 110 190 DN100 4 850 100 110 190 DN125 5 900 140 ...

Page 14: ...20060 Cassina de Pecchi MI ITALY www omcvalves com Tel 39 02 95 28 468 ENGLISH 8 9 Pic 21 Valves DN125 200 6 8 1 5 7 Pic 20 Valves DN15 100 1 2 4 6 VALVE DIAMETER NUTS 9 Nm 10 NUTS 6 Nm 10 RING NUT 7 Nm 10 SCREWS 5 Nm 10 SCREWS 8 Nm 10 DN15 1 2 40 350 5 DN20 3 4 40 350 5 DN25 1 40 350 5 DN32 1 1 4 40 350 5 DN40 1 1 2 40 350 5 DN50 2 40 350 5 DN65 2 1 2 40 480 5 DN80 3 40 480 5 DN100 4 40 480 5 DN1...

Page 15: ...stem approved by CSQ certified under no 9190 OMC2 FIRST ISSUE 1994 08 04 OMC S p A Via G Galilei 18 20060 Cassina de Pecchi MI ITALY www omcvalves com Tel 39 02 95 28 468 ENGLISH 6 0 SIZES OF THE ACTUATOR CONNECTIONS Pic 22 Valves DN15 50 1 2 2 Closed plug Pic 23 Valves DN65 100 2 1 2 4 Closed plug Pic 23 Valves DN125 200 5 4 Closed plug ...

Page 16: ... 8 0 AVAILABLE SPARE PARTS DESCRIPTION PICTURE POSITION Upper and lower seats of the diverter mixing valve 7 8 7 8 Plug of the diverter valve provided with stem 7 4 10 14 9 13 Plug of the mixing valve provided with stem 8 4 10 9 13 ZEB 20 bellows group 9 10 2 16 15 12 Body Gasket 9 10 11 12 11 LP200 stem packing gland 11 SP200 stem packing gland 12 HP200 stem packing gland 13 EcoPack 1 stem packin...

Page 17: ...l number 4 Char Adjustment characteristic equal percentage linear etc 5 Nominal diameter and nominal pressure of the valve 6 Trim Material of seat plug 7 Seal cl Valve sealing class 8 TAG Any technical identification number of the Client 9 T Maximum and minimum allowed temperatures of the process fluid 10 F coeff Outflow coefficent of the valve 11 Stroke Plug stroke 12 Fluid Process fluid 11 02 EC...

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