Emerson PENBERTHY N7 Series Installation, Operation And Maintenance Instructions Download Page 8 | Manualshive

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Summary of Contents for PENBERTHY N7 Series

Page 1: ...s or from any other cause or for consequential damages It is expressly understood that Emerson is not responsible for damage or injury caused to other products buildings personnel or property by reason of the installation or use of its products TABLE OF CONTENTS Product warranty 1 1 About the manual 2 2 Introduction 2 2 1 Features and specifications 2 2 2 Design ratings at max and min operating te...

Page 2: ...with a horizontal ball check and a leaky ball seat formed in the body TABLE 1 DESIGN RATINGS Body material Model Glass packing Maximum allowable working pressure Maximum steam pressure Bronze N7A Neoprene Standard 200 psig 1380 kPaG at 20 F 29 C to 100 F 38 C 165 psig 1140 kPaG at 300 F 149 C 125 860 kPaG Teflon Optional 200 psig 1380 kPaG at 20 F 29 C to 100 F 38 C 125 psig 860 kPaG at 400 F 204 ...

Page 3: ...ts or when provided the specifically stated design limits on a product proposal 2 3 Application data Note For specific application data within the above ranges consult the product proposal for the specific model and size gagecock set or request the supply of the applicable technical data sheet WARNING Never exceed these design ratings or application data limits Exceeding design ratings or applicat...

Page 4: ...ower glass packing nuts Note In some circumstances it may be necessary to remove glass packing nut glass packing retainer and glass packing and mount them on sight glass prior to insertion of glass into upper and lower gagecock bodies See Figure 2 for proper assembly sequence 4 3 Guard rod installation Guard rods four required are assembled downward through the upper gagecock with swaged portion o...

Page 5: ...ules safety manuals and inspection details for each specific installation of a gagecock set For maintenance purposes on all installations check gagecocks regularly for signs of 1 leakage around stem area 2 an internal stem leak 3 leakage around stuffing box connections 4 internal or external corrosion Upon evaluation of your own operating experience determine an appropriate maintenance schedule ne...

Page 6: ...m 17 and install new stem packing 25 d Thread stem assembly into gagecock by turning clockwise until stem seats and then back off one turn e Assemble stem packing nut 26 and tighten in place f Assemble handwheel 28 or lever 261 nameplate 163 and handwheel screw 100 on stem and tighten securely into place g Replace glass packing nut 37 glass packing gland 36 new glass packing 34 and glass packing r...

Page 7: ...ainer glass packing 36 Gland glass packing 37 Nut glass packing 40 Rod 47 Stem drain 48 Glass 100 Screw 163 Nameplate 261 Lever Note Part No 35A Retainer glass packing on lower gagecock only Recommended maximum quantities should provide spare parts for 10 of the gagecocks in service RECOMMENDED SPARE PARTS Ref no Item Min qty 18 Retainer stem packing 2 25 Packing stem 4 26 Nut stem packing 1 34 Pa...

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