Related Manuals for Elster J48Z
Summary of Contents for Elster J48Z
- Page 1 J48Z and P Zero Regulator and Proportionator This product is discontinued! Commissioning Instructions General Arrangement Parts List Maintenance Instructions For: J48Z Zero Regulator ¾" - 2" J48P Proportionator ¾" - 2"...
- Page 2 J48Z and P: Commissioning Instructions OPERATING INSTRUCTIONS • Ensure that this product is suitable for the chosen application. • Installation, adjustment and maintenance by authorised, trained personnel only. • When being fitted to an appliance, refer to the appliance manufacturers instructions.
- Page 4 J48Z and P: General Arrangement All sizes For all 1¼” – 2” units, and ¾” – 1” units fitted with Compression Spring (from October 1997) Spring Adjustment Pre October 2000...
- Page 5 J48Z and P: General Arrangement For all ¾” & 1” units fitted with Tension Spring (up to September 1997)
- Page 6 J48Z and P: Parts List ¾” and 1” sizes ITEM DESCRIPTION ¾” No. Off 1” No. Off BOTTOM PLUG J4806-017Z03 J4806-017Z03 BODY J4805-005+ J4806-094+ VALVE DISC HOLDER J4806-015 J4806-015 VALVE DISC J4806-025 J4806-025 VALVE SPACER J4806-014 J4806-014 DIAPHRAGM SPACER J4806-018...
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Page 7: Spares Kits
J48Z and P: Parts List 1¼”, 1½” and 2” sizes ITEM DESCRIPTION 1¼” No. Off 1½” No. Off 2” No. Off BOTTOM PLUG J4808-017Z03 J4808-017Z03 J4809-017Z03 BODY J4807-011+ J4808-084+ J4809-071+ VALVE DISC HOLDER J4808-015 J4808-015 J4809-015 VALVE DISC J4808-035 J4808-035... -
Page 8: Dismantling Procedure
J48Z and P: Maintenance Instructions For all units after October 1997 Dismantling Procedure: Pull off top cap (12). 2. Turn spring adjusting screw (44) anti-clockwise (to reduce loading on spring). 3. Carefully lift protruding end of locking lever (13) just above adjusting bush (43) whilst in this position turn (octagon shaped) adjusting bush (43) assembly anti-clockwise until disengaged. - Page 9 J48Z and P: Maintenance Instructions For all units after October 1997 Rebuilding procedure: The use of Molykote 111 "O" ring lubricant is recommended during the rebuild. Locate secondary diaphragm (22) with convolution uppermost on to the body (2). Ensure screw holes and impulse tube holes are aligned correctly.
- Page 10 J48Z and P: Maintenance Instructions For ¾” & 1” units up to September 1997 Dismantling Procedure: Pull off top cap (12). 2. Turn spring adjusting screw (18) clockwise (to reduce tension on spring). 3. Remove top cover screws (8), tilt top cover (10) and unhook tension spring (25) from valve spindle (26).
- Page 11 J48Z and P: Maintenance Instructions For ¾” & 1” units up to September 1997 Rebuilding procedure: The use of Molykote 111 "O" ring lubricant is recommended during the rebuild. Replace secondary diaphragm (22) with convolution uppermost into body (2), and ensure screw holes and impulse tube hole are aligned correctly.
- Page 12 Elster Jeavons is committed to a programme of continuous quality enhancement. All equipment designed by Elster Jeavons and manufactured within the Elster-Instromet Group benefits from the groups quality assurance standards, which are approved to EN ISO9001:2008. Elster Jeavons has a programme of continuous product development and improvement and in consequence the information in this leaflet may be subject to change or modification without notice.