PK Lindsay 6-50R Filler Plug Pop-Up O-Ring – Fits Most Models

Keep your PK Lindsay abrasive blasting machine sealing properly with the 6-50R Filler Plug Pop-Up O-Ring. This O-ring fits the filler plug/pop-up valve assembly used on many PK Lindsay blast pots and helps create the seal required for the pressure vessel to pressurize and operate correctly.

Because the pop-up seal is exposed to abrasive dust, repeated cycling, and compression every time the blast pot is filled and pressurized, it is a common wear item and a smart part to keep on hand.

Specifications:

• Brand/Application: PK Lindsay

• Part Number: 6-50R

• Product: Filler Plug / Pop-Up O-Ring

• Type: Replacement Sealing O-Ring

• Fitment: Fits Most PK Lindsay Models

• Application: Abrasive Blasting Equipment

Applications:

• PK Lindsay abrasive blast pots

• Sandblasting equipment

• Pressure blasting machines

• Commercial abrasive blasting systems

• Industrial blasting equipment

Features:

• Fits the PK Lindsay filler plug/pop-up assembly

• Helps create a tight seal when the blast pot pressurizes

• Helps prevent air leakage around the filler opening

• Simple and economical maintenance item

• Easy to keep on hand as a spare

• Helps keep older PK Lindsay blasting equipment in service

What It Does:

When the blast pot is pressurized, the pop-up valve rises and seals against the filler opening. The 6-50R O-ring provides the sealing surface needed to maintain pressure inside the blast pot.

Over time, abrasive dust, age, heat, and repeated compression can cause the O-ring to become worn, flattened, cracked, or damaged.

Common Signs the Pop-Up O-Ring May Need Replacement:

• Air leaking around the filler opening

• Blast pot is slow to pressurize

• Difficulty maintaining pressure

• Visible cracks or damage to the O-ring

• O-ring has become hard or flattened

• Excessive air escaping from the top of the blast pot

An Important Blast Pot Maintenance Item

A worn pop-up O-ring may look like a minor problem, but even a small leak at the filler opening can affect the performance of the entire blasting system.

Keeping a spare PK Lindsay 6-50R Pop-Up O-Ring on hand is an inexpensive way to reduce downtime and keep older PK Lindsay abrasive blasting equipment working properly.

Important:

Fits most PK Lindsay models. Because multiple PK Lindsay blast machine configurations were produced over the years, compare your existing O-ring and equipment before ordering if you are uncertain of fitment.

Need help finding parts for an older PK Lindsay blast machine? Reach out with your machine model or part number—we'll help you get the right parts to keep it working.