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Graco 110040 Vee Packing

The Graco 110040 Vee Packing provides reliable sealing for pump pistons and fluid ends, ensuring consistent pressure and preventing leaks. Key details include:

  • Part Number: 110040
  • Type: Vee-profile packing ring
  • Application: Pump fluid ends, piston/throat sealing
  • Benefit: Maintains high-pressure sealing and pump efficiency
  • Compatible Machines: Graco high-pressure pumps, proportioners, and rebuildable fluid-end assemblies

$20.36

Product has been Discontinued by Manufacturer

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Product Overview – Packing, Vee 110040

The Graco 110040 Packing, Vee is a specially‑designed V‑profile seal ring used in pump assemblies to maintain pressure and prevent fluid bypass in Graco systems. It is used for sealing pistons/throats and is not a generic O‑ring or simple seal.

Key Features

  • Part Number: 110040
  • Style: Vee‑profile packing ring (for piston/throat seal)
  • Application: Service/repair of Graco pump fluid ends and rebuildable assemblies
  • Benefit: Proper sealing under high‑pressure motion; ensures pump efficiency and longevity

Compatible Machines

Below are machines and pump categories known to use Vee packings in their fluid ends—please verify your specific machine’s parts list for exact part number 110040.

  • Graco high‑pressure fluid pumps with serviceable lowers (e.g., “Xtreme” series fluid ends)
  • Graco proportioner systems or spray systems that reference “Packing, Vee” in the parts list
  • Graco pump fluid‑end rebuild kits where “Packing, Vee” appears (verify part number 110040)

Installation & Maintenance Notes

  • Depressurise the pump and isolate it before service.
  • Remove old packing rings and inspect the bore, gland, and rod for wear or damage.
  • Install the Vee packing ring (110040) according to the service manual clearance and lubrication specs.
  • Reassemble the pump fluid end, torque gland nuts per manufacturer specifications.
  • Schedule periodic inspection and replacement of packings to avoid leakage, pulsation or loss of output.

Frequently Asked Questions

The “Vee” profile refers to the cross‑section shape of the seal ring: a V‑shaped lip that helps conform to the rod/gland surface, providing enhanced sealing under dynamic motion in pump assemblies.

No. While many Graco pumps use Vee packings, you must verify whether your machine’s parts list calls out **110040** specifically. Some machines use other packing numbers or materials (leather, PTFE, UHMWPE).

A worn or incorrect Vee packing can lead to leakage, loss of pump pressure, inconsistent flow, increased wear on rod/gland, and ultimately shorter pump life. Replacing it on schedule ensures sealing integrity and performance.

Replacement intervals depend on usage, fluid type, pressure and cycles. A good practice is to inspect the packing during every major service interval of the pump fluid end and replace if any signs of extrusion, wear or leakage appear.

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