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Graco 101874 Bearing Ball

Graco 101874 Bearing Ball — a durable stainless-steel valve component designed for reliability in demanding spray systems. Perfect for maintaining smooth check-valve performance in Reactor and H-Series machines.

  • Part Number: 101874
  • Material: Stainless Steel (SST)
  • Diameter: ½" (13 mm)
  • Fits: Reactor 2, H-25/H-30/H-40/H-50, H-XP2/H-XP3, EM 480

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Precision Specs & Compatibility Overview for Graco 101874 Bearing Ball

Compatible Machines

  • Graco Reactor 2 Series — Ratio Assurance / Spray Foam / Polyurea systems
  • Graco H-Series: H-25, H-30, H-40, H-50
  • Graco H-XP Series: H-XP2, H-XP3
  • Graco EM-Series: EM 480 (and other EM units where specified)
  • Any Graco equipment using check-valve housings 206831, 206833, 206962 (verify in your unit’s parts manual)

The Graco 101874 Bearing Ball is a stainless-steel internal ball (approx. ½" (13 mm) diameter) used in check-valves across various Graco spray foam, polyurea, and related application machines.

Spec Detail
Part Number 101874
Name Bearing Ball / Ball, SST
Material Stainless Steel (SST)
Nominal Diameter ½" (≈13 mm)
Typical Location Check-valve / valve assemblies (seat/ball interface)
Common Valve Housings 206831, 206833, 206962 (and related)

Why choose the 101874

  • Durable SST construction resists corrosion and wear in demanding spray environments.
  • Precision ½" sizing for reliable check-valve sealing and performance.
  • Used across multiple Graco Reactor / H-Series / EM-Series platforms for streamlined service parts stocking.

Frequently Asked Questions

It’s a stainless-steel ball used inside check-valves to create a positive seal with the valve seat, enabling correct flow direction and pressure retention.

Check your unit’s parts breakdown: if it lists 101874 or a check-valve housing like 206831, 206833, or 206962, this is the correct replacement ball.

Yes—specifications list a nominal ½" (≈13 mm) diameter to match the corresponding valve seat geometry in Graco assemblies.

Graco Reactor 2, H-25 / H-30 / H-40 / H-50, H-XP2 / H-XP3, and EM-Series units like EM 480—plus any models specifying the noted check-valve housings.

Inspect the seat for wear, clean mating surfaces, and observe orientation/sequence of valve components. Replace associated seals if recommended by the service manual.

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