Titan part 805-551 is a Ring Seal Spacer, a crucial sealing component used in the fluid section of compatible sprayers. This spacer provides the correct axial positioning and sealing surface for O-rings or packing rings, ensuring a leak-proof seal between critical pump components under high pressure. Replacing a worn spacer is essential for preventing fluid leaks and maintaining pump efficiency.
| Part Number | 805-551 |
|---|---|
| Part Description | Ring Seal Spacer |
| Fits | Helix FR, Helix VR Series |
| Application | Fluid Section Sealing & Spacing |
| Condition | New, OEM Part |
The Titan 805-551 is a precision-machined Ring Seal Spacer designed for use in Helix series sprayer pumps. This small but vital component is installed within the fluid section assembly to maintain the exact spacing and alignment required for O-rings or packing sets to seal effectively. It acts as a backbone, preventing seal extrusion under extreme pressure and ensuring a reliable barrier between the high-pressure fluid chamber and other pump sections.
A damaged, corroded, or incorrectly sized spacer can lead to premature seal failure, causing fluid leaks, pressure loss, and potential damage to adjacent components. Using the genuine Titan 805-551 spacer guarantees dimensional accuracy and material compatibility, which is critical for the long-term reliability of your Helix pump's sealing system.
| Seal Positioning | Provides a fixed, machined surface to correctly locate and support O-rings or packing rings within their gland. |
|---|---|
| Pressure Containment | Helps prevent seal extrusion by limiting the gap the soft seal material can flow into under high pressure. |
| Component Alignment | Ensures proper alignment between stacked components in the fluid section, promoting even wear. |
| During Packing Service | Whenever the pump packings or major seals are replaced, the spacer should be inspected. |
|---|---|
| Visible Damage | If the spacer shows scoring, grooves, corrosion, or any deformation. |
| Recurrent Leaks | If leaks reoccur quickly after a seal change, a worn spacer may be the cause. |
| Preventive Rebuild | Included as a standard part in pump overhaul kits to ensure all components are renewed. |
Part 805-551 is a genuine Titan component used in the following professional airless sprayer series. It is commonly found within the fluid section assembly or packing kits for these models.
| Compatible Series | Common Application |
|---|---|
| Helix FR Series | Ring Seal Spacer within Fluid Section / Packing Assembly |
| Helix VR Series | Ring Seal Spacer within Fluid Section / Packing Assembly |
Model Verification: While compatible across the FR and VR series, always confirm fitment using the official parts list for your specific Helix model and serial number to ensure accuracy, as internal components can vary.
This spacer is rarely serviced in isolation. It is intrinsically linked to the following sealing and wear components.
The 805-551 spacer is often included in complete pump packing or seal overhaul kits for Helix models.
Inspect the plunger for scoring, as a damaged rod can quickly ruin a new spacer and seals.
The internal bore where the spacer sits must be smooth and free of grooves for a proper seal.
Always use the manufacturer-recommended lubricant on seals and spacers during assembly for proper break-in.
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