Titan part 805-408 is a genuine OEM siphon tube that draws paint from the material container into the pump on Titan Impact and RentSpray airless sprayers. A cracked, clogged, or collapsed siphon tube starves the pump of paint, causing cavitation, pressure loss, and uneven spray patterns. This direct-fit replacement includes the tube, inlet strainer, and return hose clip, restoring full material flow and ensuring the pump receives a steady, unobstructed supply of coating for consistent high-pressure spraying.
| Part Number | 805-408 |
|---|---|
| Part Description | Siphon Tube |
| Brand | Titan |
| Fits | Impact 400, 440, 640, 640 I, 640 IA, X410, X440, X540i; RentSpray 500, 600 Impact |
| Condition | New |
The Titan 805-408 Siphon Tube is a complete OEM material feed assembly that draws paint from the pail and delivers it to the pump inlet on Titan Impact and RentSpray airless sprayers. This assembly includes the flexible siphon hose, the inlet strainer screen that filters out debris, and the return hose clip that secures the bypass line. A worn, cracked, or clogged siphon tube restricts paint flow to the pump, causing cavitation, pressure drop, pulsation, and potential pump damage. Replacing the complete assembly with the 805-408 restores full, unrestricted material flow and ensures the pump always has a steady supply of coating for smooth, professional spraying results.
| Draws paint from pail | Connects the pump inlet to the material container, using pump suction to pull coating into the fluid section |
|---|---|
| Filters debris | Includes an inlet strainer screen that prevents particles and dried paint from entering the pump |
| Secures return line | Features an integrated clip that holds the bypass return hose in position at the pail |
| Cracked or split | Visible damage to the tube allowing air to enter, causing pump cavitation and pressure loss |
|---|---|
| Collapsed or kinked | Tube is permanently flattened or bent, restricting paint flow to the pump inlet |
| Clogged strainer | Inlet screen is packed with dried paint or debris and cannot be adequately cleaned |
| Stiff or brittle | Tube material has hardened from age and solvent exposure, causing it to crack when flexed |
This siphon tube assembly is engineered for specific Titan Impact and RentSpray airless sprayer models. The following confirmed models use this part. Always verify fitment with your sprayer's illustrated parts breakdown.
| Model Family | Compatible Models |
|---|---|
| Impact | Impact 400, Impact 440, Impact 640, Impact 640 I, Impact 640 IA |
| Impact X | Impact X410, Impact X440, Impact X540i |
| RentSpray | RentSpray 500, RentSpray 600 Impact |
| Table | Description |
|---|---|
| Product overview | The Titan 805-408 Siphon Tube is a complete OEM material feed assembly that forms the critical link between the paint pail and the pump on Titan Impact and RentSpray airless sprayers. The siphon tube is the first component in the entire fluid delivery chain. It dips into the paint container and, through the suction created by the pump, draws coating up into the fluid section where it is pressurized. If the tube is cracked, air enters the system and the pump cavitates, producing a pulsating spray pattern and losing pressure. If the inlet strainer is clogged, the pump starves for material and cannot maintain output. If the tube is collapsed or kinked, flow is restricted and the pump works harder while delivering less. Replacing the complete 805-408 assembly restores every element of the feed system at once, ensuring the pump receives a full, clean, uninterrupted supply of paint for professional results. |
| Function | The siphon tube connects to the pump inlet fitting and hangs down into the material pail. The flexible tube allows the pail to be moved slightly without disconnecting. The bottom end features an inlet strainer, a metal or plastic screen that filters out debris, dried paint chips, and foreign material. A molded clip on the tube holds the bypass return hose, keeping both lines organized at the pail. |
| Industrial Applications | The Impact and RentSpray sprayers are used in residential painting, commercial repaints, multi-unit housing, property maintenance, and light industrial finishing. They handle latex, acrylic, alkyd, primer, and light elastomeric coatings. A properly functioning siphon tube is essential for the consistent material feed that produces an even, professional spray pattern. |
| Compatible Equipment | Direct-fit for Impact 400, Impact 440, Impact 640, Impact 640 I, Impact 640 IA, Impact X410, Impact X440, Impact X540i, RentSpray 500, and RentSpray 600 Impact. See the compatibility table above. Always verify using your sprayer's specific parts diagram. |
| Compatible Parts & Assemblies | The siphon tube connects to the pump inlet fitting and works with the bypass hose, pressure control assembly, pump fluid section, and material pail. It is typically removed and replaced during pump service or when switching between coating materials. |
| Related Parts Commonly Serviced Together | When replacing the siphon tube, technicians often replace the bypass hose at the same time since both components age at a similar rate from solvent exposure. The pump inlet fitting and O-ring should be inspected. The fluid section should be flushed to remove any debris that may have entered through a damaged tube. |
| Common Problems Solved | A damaged siphon tube causes the pump to lose prime, cavitate, and produce a pulsating spray pattern. It can also allow debris into the pump, causing check valve failure and scoring of the piston and cylinder. Replacing the assembly eliminates these issues and restores full material flow. |
| Use with Coating Systems | The siphon tube material is selected to resist the solvents and chemicals in latex, acrylic, alkyd, epoxy, lacquer, and cleaning fluids. Its function is independent of the coating being sprayed. |
| OEM & Brand Information | Titan is a worldwide leader in professional airless spray equipment. The 805-408 Siphon Tube is manufactured to OEM specifications for inner diameter, length, material flexibility, and chemical resistance. Using a genuine Titan assembly ensures proper fit at the pump inlet and the correct strainer mesh size. |
| Commercial Benefits | A failing siphon tube can ruin a paint job with pulsation and uneven coverage, or stop work entirely if the pump loses prime. The 805-408 complete assembly is a fast, foolproof replacement that restores the entire feed system in minutes. Keeping a spare on the service truck ensures a damaged tube never delays a project. |
| Detailed Technical & Commercial Overview | The siphon tube is subjected to constant exposure to paint, solvents, and cleaning fluids. Over time, the flexible plastic or rubber can harden and become brittle, developing stress cracks where it flexes near the pump inlet or at the pail rim. These cracks may be difficult to see but allow air to enter the suction line. Even a pinhole air leak will cause the pump to cavitate, producing the characteristic pulsation and pressure drop that painters immediately notice at the gun. The inlet strainer at the bottom of the tube is equally important. It prevents dried paint chips, dirt, and debris from entering the pump, where they can lodge in the check valves and prevent them from sealing. A strainer that is clogged restricts flow and forces the pump to work harder, increasing wear on every component. The 805-408 assembly replaces the tube, strainer, and return hose clip as a unit, resolving both air leaks and flow restrictions simultaneously. For professional painters who depend on consistent spray quality, this assembly is a routine maintenance item that should be inspected regularly and replaced at the first sign of deterioration. |
When replacing the 805-408 siphon tube, these companion items are often inspected or replaced at the same time.
The bypass hose ages at the same rate as the siphon tube. Replace both together to ensure the complete fluid handling system is renewed.
Inspect the inlet fitting for cracks and replace the O-ring to ensure an airtight seal where the siphon tube connects.
If debris entered through a damaged strainer, the check valves may be contaminated. Clean or replace valves as needed.
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