Water Process Solutions Encore 700 - Removing Pump from Service and Disassembling Valves, Head, and Diaphragms; Draining System of Hazardous Material

ENCORE
®
700 METERING PUMP
leaks when they are found, to avoid corrosion damage. Flush away spilled
solution with water and wipe the parts clean and dry.
Maintain gasketed joints in good condition. Keep an adequate supply of
gaskets and O-rings available so that repair of leaks can be accomplished
without delay. It is a good practice to discard used gaskets and O-rings,
replacing them with new material each time a joint is broken.
Removing Pump From Service and Disassembling Valves, Head, and Diaphragms
WARNING: USE EXTREME CARE TO AVOID CONTACT WITH THE MA-
TERIAL AND TO AVOID POSSIBLE SEVERE PERSONAL INJURY WHEN
USING HAZARDOUS MATERIAL. OBSERVE ALL SAFETY PRECAUTIONS,
INCLUDING USING APPROPRIATE PROTECTIVE CLOTHING AND EYE
PROTECTION WHEN HANDLING HAZARDOUS MATERIAL.
Procedures for the assembly and disassembly of parts for pump corrective
maintenance are referenced in the following paragraphs.
Draining System of Hazardous Material
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY FROM
BEING SPRAYED BY LIQUID UNDER PRESSURE, ALLOW THE SYSTEM
TO DRAIN FULLY BEFORE ATTEMPTING TO DISASSEMBLE PIPING AND
REMOVING VALVES AND/OR HEAD.
a. Disconnect power from the pump.
b. Close the discharge shutoff valve.
c. For flooded suction, close the suction shutoff valve to prevent the
backflow of liquid when suction lines are opened. (Refer to Dwg.
440.400.110.040 in Section 2.)
d. Open the suction drain valve and drain the suction line of liquid.
e. Open the discharge drain valve to relieve pressure and drain the
discharge line.
f. Open the bypass valve in the pressure relief valve.
g. If a pulsation dampener is used, close off its valve when pressure has
reached zero.
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WT.440.400.001.UA.IM.1012
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