Pulsafeeder 41668 PVC Double-Ball Discharge Check Valve Cartridge - 3/8-Inch

Pulsafeeder 41668 PVC Double-Ball Discharge Check Valve Cartridge

The Pulsafeeder 41668 is a 3/8-inch PVC double-ball discharge check valve cartridge assembly identified in CHEM-TECH mechanical diaphragm metering pump parts schedules. It is designed for the discharge side of compatible pump liquid ends.

Double-Ball Discharge Valve Operation

The discharge check valve supports one-way movement of chemical solution from the pump head toward the discharge tubing. During the pump operating cycle, its check components help resist reverse flow toward the liquid end.

Technical Specifications

• Manufacturer: Pulsafeeder
• Part Number: 41668
• Component: Double-Ball Check Valve Cartridge
• Housing Material: PVC
• Connection Size: 3/8 Inch
• Valve Position: Discharge
• Product Family: CHEM-TECH Mechanical Diaphragm Metering Pumps
• Internal Ball and Seat Materials: Verify Manufacturer Parts Diagram

Why the Discharge Cartridge Matters

Normal metering pump operation depends on check valves opening and closing as the diaphragm moves through suction and discharge strokes. Deposits or damaged seating surfaces can interfere with check-valve action and affect chemical delivery.

3/8-Inch Connection Identification

Part 41668 is identified as the 3/8-inch discharge cartridge. J41669 is a separate 1/2-inch discharge cartridge, and J41667 is a suction-side cartridge. These part numbers should be matched to the correct liquid-end location.

Inspection and Troubleshooting

Inspect the cartridge when troubleshooting inconsistent chemical feed, suspected reverse leakage or deposits inside the pump head. Check related tubing, fittings and other check valves as part of the complete troubleshooting procedure.

Replacement Procedure

Disconnect electrical power, isolate the chemical supply and relieve discharge pressure before servicing the pump. Install the cartridge in the correct orientation according to the CHEM-TECH maintenance manual.

Ordering Information

Specify Pulsafeeder 41668 for the PVC double-ball discharge check valve cartridge with 3/8-inch connection on a compatible CHEM-TECH metering pump.