J48HL
Gas Pressure Regulator
Commissioning Instructions
General Arrangement
Parts List
Maintenance Instructions
For: J48HL Regulator ¾" - 2"
This product is discontinued!
Page 1: ...J48HL Gas Pressure Regulator Commissioning Instructions General Arrangement Parts List Maintenance Instructions For J48HL Regulator 2 This product is discontinued ...
Page 2: ...a flat bladed screwdriver into the slot in the end of the spring adjusting screw 18 Turn anticlockwise to reduce pressure on the loading spring 19 Slowly turn on inlet supply 20 Increase loading on the spring by turning the spring adjusting screw clockwise until the required outlet pressure plus approximately 2 5mbar is obtained 21 Commission downstream appliance s 22 Trim the outlet pressure of t...
Page 3: ...3 J48HL Regulator General Arrangement 20 19 21 Spring Adjustment Pre October 2000 1 5 4 3 2 6 10 9 8 7 14 44 11 13 12 15 16 31 30 27 28 29 26 25 22 23 24 47 46 18 45 43 17 ...
Page 4: ...806 105 1 J4806 105 1 18 O RING SEAL JO200032 4475 Ï 1 JO200032 4475 Ï 1 19 ADJUSTING BUSH Old Design J4806 100 1 J4806 100 1 20 TOP SPRING HOLDER Course Thread J4806 098 1 J4806 098 1 21 SPRING ADJUSTING SCREW Course Thread J4806 097 1 J4806 097 1 22 SPRING LOCATION WASHER J4806 057 1 J4806 057 1 23 TOP DIAPHRAGM PLATE J4806 055 1 J4806 055 1 24 DIAPHRAGM SPACER J4806 052 1 J4806 052 1 25 SCREW J...
Page 5: ... Ï 1 JO200032 4475 Ï 1 JO200032 4475 Ï 1 19 ADJUSTING BUSH Old Design J4806 100 1 J4806 100 1 J4806 100 1 20 TOP SPRING HOLDER Course Thread J4806 098 1 J4806 098 1 J4806 098 1 21 SPRING ADJUSTING SCREW Course Thread J4806 097 1 J4806 097 1 J4806 097 1 22 SPRING LOCATION WASHER J9812 022 1 J9812 022 1 J4809 053 1 23 TOP DIAPHRAGM PLATE J9812 024 1 J9812 024 1 J4809 051 1 24 DIAPHRAGM SPACER J4808 ...
Page 6: ...ocking lever 17 just above adjusting bush 45 whilst in this position turn octagon shaped adjusting bush assembly 19 anticlockwise until disengaged The adjusting bush 45 can then be removed from the top cover 14 4 Remove the loading spring 13 from the top cover 14 5 Lift keyhole end of locking lever 17 over sloping peg in adjusting bush 45 and slide forward until disengaged from spring adjusting sc...
Page 7: ...over threaded end of valve spindle 2 until it rests against shoulder of spindle 2 Assemble valve disc 5 onto valve disc holder 4 with bead uppermost 3 Replace valve disc assembly 4 5 over threaded end of valve spindle 2 with chamfer around centre facing downward 4 Load valve spindle assembly 2 through bottom plug opening in body 3 This will ease assembly of valve spacer 6 and secondary diaphragm 5...
Page 8: ... spring location washer 22 NOTE If adjusting bush assembly 45 has been dismantled follow procedure if it has been left assembled then proceed to instruction number 26 22 Slide O ring seal 15 over slotted end of spring adjusting screw 46 into second groove i e groove nearest thread 23 Replace washer 44 over slotted end of spring adjusting screw 46 and slide down until it sits on shoulder of adjusti...
