Instructions
EY0173
10/08
173 Series
Self-OperatingPressure Regulators
DV-216-173 series Inst-fnl.indd c
11/20/08 9:29:49 AM
Page 1: ...Instructions EY0173 10 08 173 Series Self Operating Pressure Regulators ...
Page 2: ...NSTALLATION 8 4 4 START UP AND CALIBRATION 8 4 5 MAINTENANCE 8 Caution The instructions on the following pages should be thoroughly reviewed and understood prior to installing operating or performing maintenance on this equipment Throughout the text safety and or caution notes will appear and must be strictly adhered to otherwise serious injury or equipment malfunction could result Copyright Mason...
Page 3: ... this manual is subject to change without prior notice The information contained in this manual in whole or part shall not be transcribed or copied without Masoneilan s written permission Please report any errors orquestions about the information in this manual to your local supplier These instructions are written specifically for the 173 Series back pressure regulators and do not apply to other r...
Page 4: ...event dirt from entering Units can be placed on pallets if required Follow all and any instructions noted on the packaging Operators moving loads must take all necessary precautions to prevent accidents Storage Regulators must be kept in a dry place to protect them from atmospheric conditions They may only be removed from their crates or packing immediately prior to installation The end protection...
Page 5: ...s Part 1 Blindhead 2 Gasket Set 3 Body 4 Guide 5 Diaphragm Case 6 Ball 7 Diaphragm Plate Upper 8 Diaphragm 9 Protector optional 10 O Ring 11 Spring Case 12 Spring 13 Adjusting Screw 14 Lock Nut 15 Spring Button 16 Nut 17 Spring Guide 18 Screw 19 Nut 20 Diaphragm Plate Lower 21 Screw 22 Plug 23 Ring 24 Disc 25 Seat 26 Screw 27 Gasket Plate 28 Cap Recommended spare parts ...
Page 6: ...2 Installation 3 2 1 173 Series regulators must be installed with the actuator 2 facing upwards and the diaphragm perfectly horizontal as shown in Fig 6 In pressure reducing applications regulating very low down stream pressures normally lower than 100 mm water column the regulator must be installed with the actuator facing down wards and perfectly horizontal below pipeline as indicated by the nam...
Page 7: ...er clockwise after loosening the locknut 14 The position of the locknut should be noted to allow clos er preliminary adjustment when reassembling If the regulator is equipped with a sealed cap Fig 4 first remove the cap 28 and gasket Remove the spring case 11 by loosening the nuts 19 Note it is not necessary to remove the housings on actuator sizes 220 and 360 Remove the spring Unscrew the nut 16 ...
Page 8: ...le Diaphragm Part 1 Blindhead 2 Gasket Set 3 Body 4 Guide 5 Diaphragm Case 6 Diaphragm Plate 7 Diaphragm 8 O Ring 9 Spring Case 10 Spring 11 Nut 12 Screw 13 Gasket 14 Lock Nut 15 Packing Gland 16 Bearing 17 Spring Button 18 Adjusting Screw 19 Spring Guide 20 Screw 21 Nut 22 Screw 23 Plug 24 Ring 25 Disc 26 Seat 27 Screw 28 Gasket Plate Recommended spare parts ...
Page 9: ...ody 4 Guide 5 Diaphragm Case 6 Diaphragm Plate Lower 7 Diaphragm 8 O Ring 9 Spring Case 10 Spring 11 Nut 12 Screw 13 Gasket 14 Packing Gland 15 Lock Nut 16 Bearing 17 Spring Button 18 Adjusting Screw 19 Spring Guide 20 Screw 21 Nut 22 Screw 23 Plug 24 Ring 25 Disc 26 Seat 27 Screw 28 Gasket Plate 29 Nut 30 Actuator Ring 31 Intermediate Plate Recommended spare parts ...
Page 10: ...ightest possibility of the pressure upstream from the reduction regulator exceeding the maximum admissible pressure for the installation caused by the failure of the overflow regulator a safety relief valve must be installed upstream without an isolation valve in between in order to discharge the entire flow crossing the differential pressure regulator 4 3 9 Please keep in mind that the regulated ...
Page 11: ...m protector if equipped Gaskets should not be re used If preferred the regulator may be returned to an authorized Masoneilan repair center to be reconditioned 4 5 6 Reassembly Carry out the disassembly operations in reverse order Push the stem of the plug into its guide and tighten the seat 26 Screw back the cover 1 Install the diaphragm s see 4 5 taking care to properly arrange the Teflon protect...
Page 12: ...n Texas Phone 832 590 2303 Fax 832 590 2529 California Phone 562 941 7610 Fax 562 941 7810 DIRECT SALES OFFICE LOCATIONS Aftermarket Value Services Dresser Masoneilan a leading manufacturer of automated process control solutions offers world class global aftermarket services Consistent and high quality services executed through a network of fully authorized and certified third party service center...
