Pulsafeeder J41875 FPP/PTFE Injection Check Valve with PTFE Ball - PTT3/PTT5

PTFE Injection Valve for PULSAtron PTT3 and PTT5 Wet Ends

When maintaining a PULSAtron pump equipped with a PTT3 or PTT5 wet end, the J41875 injection valve provides the specified FPP/PTFE/PTFE material combination. It is designed for chemical injection applications requiring a 1/2-inch OD discharge tubing connection.

Product Highlights

• FPP housing for the specified PTT-series liquid-end configuration
• PTFE valve seat and PTFE check ball
• 1/2-inch outside-diameter tubing connection
• 1/2-inch male NPT process-side connection
• Listed compatibility with PTT3 and PTT5 wet ends

Technical Specifications

• Manufacturer: Pulsafeeder
• SKU: J41875
• Component: Injection Back-Check Valve
• Body: FPP / Glass-Filled Polypropylene
• Seat: PTFE / TFE
• Check Ball: PTFE / Teflon
• Tubing: 1/2-Inch OD
• Injection Fitting: 1/2-Inch Male NPT
• Wet Ends: PTT3, PTT5

PTFE Seat and Ball Configuration

Both the valve seat and check ball are identified as PTFE. This is a distinguishing characteristic of J41875 compared with ceramic-ball or stainless-steel-ball injection valves. Matching the original wetted components helps preserve the specified pump configuration.

How the Injection Check Valve Works

Installed at the end of the discharge line, the valve permits chemical solution to enter the process piping while helping resist reverse flow. The check-valve assembly also provides injection-point back pressure that supports consistent metering.

PTT3 and PTT5 Replacement Guidance

Confirm the complete pump model and liquid-end code before ordering. The related J41874 is intended for PTT1 configurations with smaller 3/8-inch OD tubing, so the two part numbers should not be treated as interchangeable.

Installation Notes

Use the specified tubing coupling and follow the manufacturer instructions for tightening plastic fittings. Check the injection connection for leakage and deposits during routine maintenance.