Injection Check Valve Parts Replacement - Milton Roy Roytronic A Series Instruction Manual

5.5

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 MSDS 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
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
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
Before disassembling the check valve, note the orientation of the parts.
4. Install a new spring, seat, ball, and O-ring. Ensure that the parts are oriented
kit number or contact your local LMI stocking distributor.
™
manual).
Injection Check Valve Fitting. Remove and replace the worn spring, seat, ball, and
O-ring.
correctly.
Spring
Ball
O-Ring
Seat
MAINTENANCE
O-Ring
Injection Check
Valve Fitting
27