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Emerson VA001-102-01, Service And Adjustment

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RAP R11: Low Pressure Air Relay Valve Service and Adjustment

ARV-VA001-102-00
05/05/11

Low Pressure Diaphragm-Operated Air
Relay Valve

Service and Adjustment for VA001-102-01 & VA001-102-02

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Summary of Contents for VA001-102-01

Page 1: ...RAP R11 Low Pressure Air Relay Valve Service and Adjustment ARV VA001 102 00 05 05 11 Low Pressure Diaphragm Operated Air Relay Valve Service and Adjustment for VA001 102 01 VA001 102 02 ...

Page 2: ...et aside 3 Slowly pull valve stem item 7 out of body item 1 and set aside on a clean surface 4 Carefully remove end valve sleeves item 6 and center valve sleeve item 5 Note how they go together 5 Clean stem item 7 with a soft cloth Do Not scratch the stem Clean the end sleeves item 6 and center sleeve item 5 6 Lubricate and install new outer o ring item 10 and install new inner o ring item 11 with...

Page 3: ...ght See Figure 3 Figure 3 Installing Spring Retainer 8 Turn the valve body item 1 so that the open end of the bore is up Install new inner o rings item 11 without lube in the center sleeve item 5 Place new lubricated o ring item 10 in the bore of the body item 1 on top of the end sleeve item 6 See Figure 4 9 Carefully slide the center sleeve item 5 into the bore in of the body When it reaches the ...

Page 4: ...t lube and lubricated outer ring 14 in the second end sleeve item 9 Slide the end sleeve into the bore of the body item 1 with the o ring grooves out toward the cylinder threads Insert the sleeve until the outer o ring is about to enter the bore See Figure 6 12 Disassemble the diaphragm cylinder by removing the 10 32 x socket head cap screws items 9 8 retaining the end cap item 9 7 and remove the ...

Page 5: ...thread the cylinder in it will push the o ring and sleeve into the bore to the correct position This action will also seat the o ring in the center sleeve Tighten cylinder item 9 1 hand tight to the body item 1 Figure 7 Installing Cylinder 15 Lubricate the tip of the stem item 7 note taper and carefully insert taper end first pushing it through bearing item 9 9 toward the spring end item 3 See Fig...

Page 6: ...se or decrease the pressure at the pilot port until the valve trips When the valve trips read the pilot supply gage and make a note of the pressure 5 To adjust the trip point remove pressure on the pilot and rotate the adjusting cap item 3 clockwise to increase or counter clockwise to decrease Always remove pressure at the pilot before adjusting the adjusting cap 6 Adjust the cap item 3 and take p...

Page 7: ...11 Low Pressure Air Relay Valve Service and Adjustment ARV VA001 102 00 05 05 11 Air Relay Valve View from VA001 102 00 assembly drawing of valves VA001 102 01 Buna N seals and VA001 102 02 Flurocarbon seals ...

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