24
Instruction Manual
SECTION 4 - MAINTENANCE
Figure 16. Injection Check Valve Parts Replacement
4.5 INJECTION CHECK VALVE PARTS
REPLACEMENT
DEPRESSURIZE AND DRAIN
PIPELINE (OR ISOLATE INJECTION
CHECK VALVE POINT USING VALVES) SO THAT INJECTION
CHECK VALVE CAN SAFELY BE DISASSEMBLED.
ALWAYS WEAR PROTECTIVE
CLOTHING, FACE SHIELD, SAFETY
GLASSES AND GLOVES WHEN WORKING NEAR OR
PERFORMING ANY MAINTENANCE OR REPLACEMENT ON
YOUR PUMP. SEE SDS INFORMATION FROM SOLUTION
SUPPLIER FOR ADDITIONAL PRECAUTIONS.
Refer to the LMI
®
Metering Pump Price List for
the proper Spare Parts Kit or RPM PRO PAC™
kit number or contact your local LMI
®
stocking
distributor.
1. Isolate Injection Check Valve and depressurize
pipe or drain pipeline.
2. Carefully depressurize and disconnect the
discharge line (see Section 5.1 or 5.2 in this
manual).
Spare part replacement kits include specific
instructions for valve replacement. Please follow
the instructions included with the replacement kit.
3. Carefully disconnect the tubing leading to the
Injection Check Valve, then remove the Injection
Check Valve Fitting. Remove and replace the
worn spring, seat, ball, and O-ring.
Note:
Before disassembling the check valves, note
the orientation of the valve.
4. Install a new spring, seat, ball, and O-ring.
Ensure that the parts are oriented correctly.
Spring
Ball
Injection Check
Valve Fitting
Seat
O-Ring
O-Ring
