OPERATING INSTRUCTIONS - Broady Valves Limited
Contents
1. OPERATING INSTRUCTIONS Category II Pressure Accessory CE Notified Body No 0038 Type C3 Reducing Valve B j Application Suitable for compressed air gas water and oil service Operation The outlet pressure can be varied as required by compressing or relaxing the spring using the adjusting screw Clockwise turns compress the spring increasing outlet pressure Anti clockwise turns relax the spring decreasing outlet pressure Lifting and Handling Wooden cases should be lifted using either a Fork Lift Vehicle or a Crane with adequate Safety Approved slings NG applied to carry the weight which will be evenly distributed within the case Important All manual handling operations should be carried out in compliance with the Manual Handling Operations Regulations 1992 SI 1992 2793 EC Directive 90 269 EEC Storage If valve is bound to be stored longer than 6 months turn back adjusting screw to remove compression from spring Re adjust spring compression on installation Valves with Screwed ends shall have plugs fitted in their connections to prevent ingress of dirt etc Flanged valves shall have their bores blanked off We recommend that plugs blanks be removed immediately prior to installation Installation and Commissioning It is most important that the pipeline be clean and free from dirt scale etc Fit valve in pipeline with flow as indicated by arrow cast on valve body and wi2. en hold unrestricted Saddle 7 at Diaphragm end of valve unscrew Saddle Cap in an anticlockwise direction Remove Disc Holder 5 The Disc can then be prised out using a small screwdriver care must be taken not to damage Disc Holder The new Disc can be pushed into the Disc Holder we recommend using LOCTITE 415 to bond it in place Follow reassembly instructions below Note Replace all joints with new ones Reassembly The valve is reassembled in reverse order of above dismantling procedures in addition Disc must be held in fully closed position while new Diaphragm is fitted ensuring that faces of collar on Saddle and diaphragm spigot on Body are level as shown in the illustration Before fitting Bonnet 15 make sure Saddle 7 is square in Body 3 and does not touch side of nozzle Readjust the pressure as necessary by means of the Adjusting Screw 18 Locknut 17 should then be tightened LOCTITE is a Registered Trade Mark of Loctite Corp USA Piston Nut Locknut Piston Bolt Spring Carrier Locknut Adjusting Screw Adjusting Screw Loading Spring If Required Recommended spare parts Broady Flow Control Limited 2002 D23 C3 PRV Version 1 0 04 02 APD E F A DY Broady Flow Control Limited English Street F L O W c O N T R OL Kingston upon Hull East Yorkshire HU3 2DU www broady co uk Telephone 01482 619600 Facsimi
3. le 01482 619700 EC DECLARATION OF CONFORMITY Issued in accordance with the PRESSURE EQUIPMENT DIRECTIVE PED 97 23 EC We hereby declare that in compliance with the above Directive the product s detailed below have been manufactured in accordance with conformity assessment module D1 Full quality assurance ISO 9001 as approved by Lloyds Register Notified Body No 0038 of Middlemarch Office Village Siskin Drive Coventry CV3 4FJ UK under EC Certificate of Conformity RPS 0160389 02 Product Description Pressure Accessory Product Reference Type C3 Reducing Valve Comprising Not Applicable Serial Number Not Applicable Applicable Standards None Other Applicable Directives None seme AAwa Name A J Derrick Position Managing Director Date 24 April 2002 pov A fo e a c Ont Re Declaration of Conformity Form QF 185 D1 iss A Broady Flow Control Limited 2002 D23 C3 PRV Version 1 0 04 02 APD
4. th adjusting screw directly above or below pipeline It is also advisable to fit a stop valve on high pressure side of line Important When fitting Pressure Gauge to valve body ensure threads do not penetrate interfering with internal moving parts otherwise valve could jam Maintenance Examine annually for signs of defect damage or deterioration Give special attention to contact seating faces if damaged these should be re faced Discs diaphragms seals and springs should be replaced if there is any sign of deterioration All parts should move freely in their respective guides Note Quote the unique valve serial number when ordering spare parts A Safety Warning Before dismantling ensure that the valve has been isolated from the pressure and the adjusting screw has been removed Dismantling and Reassembly To replace Diaphragm When the pressure is off Remove Adjusting Screw 18 Bonnet 15 Spring Carrier 16 and Spring 14 Piston Nuts 11 amp 12 and Piston 10 Diaphragm 9 should come away freely Clean the diaphragm seating spigot on Body 3 Follow reassembly instructions below To replace Disc Follow the instructions for replacement of Diaphragm this will leave Saddle 7 unrestricted at Diaphragm end of valve Remove Cap 1 by turning in an anticlockwise direction and remove Joint 2 this will give access to Saddle Cap 4 and Loading Spring 21 f fitted Remove Loading Spring th
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