Pulsafeeder J41879 FPP/PTFE/316 Stainless Steel Injection Check Valve - 1/2-Inch OD

Pulsafeeder J41879: Injection Check Valve with 316 Stainless Steel Ball

The Pulsafeeder J41879 is an injection back-check valve assembly combining an FPP housing, PTFE seat and 316 stainless steel check ball. The assembly uses a 3/8-inch inside-diameter by 1/2-inch outside-diameter tubing configuration for compatible PULSAtron chemical metering systems.

Technical Specifications

• Manufacturer: Pulsafeeder
• Part Number: J41879
• Product Type: Injection Back-Check Valve
• Housing Material: FPP / Glass-Filled Polypropylene
• Valve Seat: PTFE / TFE
• Check Ball: 316 Stainless Steel
• Tubing: 3/8-Inch ID x 1/2-Inch OD

Why the Stainless Steel Check Ball Matters

The 316 stainless steel ball is a distinguishing feature of J41879. It should not be substituted with ceramic or PTFE without confirming the original liquid-end design and chemical compatibility.

Chemical Injection and Backflow Protection

At the discharge-side injection point, the valve permits metered chemical solution to enter the process system while helping resist reverse flow toward the pump.

FPP Housing with PTFE Seat

The glass-filled polypropylene housing and PTFE sealing surface form part of the specified wetted-material combination. Confirm compatibility with the chemical concentration, operating temperature and application conditions.

Connection Selection

J41879 uses 1/2-inch OD discharge tubing. The related J41878 uses 3/8-inch OD tubing. Confirm the original pump model, tubing size and process connection before ordering.

Maintenance and Inspection

Inspect for deposits, leaks, damaged connections and check-ball contamination. Isolate and depressurize the chemical feed system before removing the injection valve.

Ordering Information

Specify Pulsafeeder J41879 for the FPP/PTFE/316 stainless steel injection check valve with 1/2-inch OD tubing.