Titan EPX2505 | PRIME/SPRAY Valve Assembly P/N 0507690
Buy Titan EPX2505 Prime/Spray Valve Assembly Parts
Restore dependable priming, fluid diversion and spray-mode operation with Titan EPX2505 Prime/Spray Valve Assembly (P/N 0507690) Parts from AllTitanParts. Shop replacement valve gaskets, bypass valve seats, O-rings, cam bases and relief valve knobs for the EPX2505 airless piston pump.
Use the illustrated factory parts diagram to locate the component you need, match the correct part number and repair your sprayer's PRIME/SPRAY control system with confidence.
Assembly Overview
Shop EPX2505 Prime Valve and Bypass Valve Repair Parts
The Titan EPX2505 PRIME/SPRAY Valve Assembly is identified as part number 0507690 in the factory service manual. It allows the operator to select the appropriate fluid pathway during priming, flushing, pressure relief and spraying.
In the PRIME position, coating material can circulate through the return pathway, helping the pump fill with material and expel air. In the SPRAY position, the valve closes the priming return pathway so the pump can deliver pressurized material to the spray hose and gun.
Wear, coating buildup or damage to internal valve components can cause difficult priming, unexpected material return, leakage or loss of spraying pressure. Identifying the affected component before ordering helps avoid unnecessary repairs.
Replacement Parts Reference
Titan EPX2505 Prime/Spray Valve Assembly Parts List
The AllTitanParts category currently lists five individual replacement products. Match each diagram reference to the product part number before purchasing.
| Diagram Ref. | Listed Part Number | Description | Application |
|---|---|---|---|
| 2 | 700-537 | Gasket | Valve connection sealing |
| 6 | 800-910 | Bypass Valve Seat | Valve sealing surface |
| 8 | 700-721 | O-Ring | Internal valve sealing |
| 11 | 700-251 | Bypass Cam Base | Valve operating mechanism |
| 13 | 0507662 | Relief Valve Knob | Manual valve operation |
The complete factory assembly includes additional components that are not individually listed in this category. Diagram references and replacement part numbers should be checked against the current product listings.
Featured Replacement Components
Find EPX2505 Valve Seals, Seats, Cam Bases and Knobs
REF. 2 | GASKET
Titan 700-537 Gasket
The Titan 700-537 Gasket helps seal the specified PRIME/SPRAY valve connection. A worn, compressed or damaged gasket can contribute to fluid leakage. Inspect the sealing surfaces when replacing this component.
REF. 6 | VALVE SEAT
Titan 800-910 Bypass Valve Seat
The Titan 800-910 Bypass Valve Seat provides a sealing surface within the bypass valve mechanism. Wear, debris or surface damage may prevent proper sealing and contribute to unwanted fluid return during spray operation.
REF. 8 | O-RING
Titan 700-721 O-Ring
The Titan 700-721 O-Ring seals its designated internal valve connection. Replace a cut, flattened, hardened or chemically damaged O-ring with the specified component to help restore the intended seal.
REF. 11 | OPERATING MECHANISM
Titan 700-251 Bypass Cam Base
The Titan 700-251 Bypass Cam Base forms part of the valve's mechanical operating arrangement. It helps translate movement of the external control into the intended valve position.
Replaces: Titan 0507735
REF. 13 | MANUAL CONTROL
Titan 0507662 Relief Valve Knob
The Titan 0507662 Relief Valve Knob provides the external operating control for the PRIME/SPRAY valve. Replace a damaged, broken or missing knob to restore the intended manual control arrangement after checking the internal mechanism.
Valve Operating Functions
How the EPX2505 PRIME/SPRAY Valve Works
Select PRIME
The operator selects the priming position to open the designated return pathway.
Circulate Material
Material can travel through the return circuit while the pump fills and air is expelled.
Select SPRAY
The valve closes the return pathway to permit pressure buildup toward the spray hose.
Relieve Pressure
The valve is returned to PRIME as part of the complete manufacturer-specified pressure-relief procedure.
Part Number Cross-Reference
Titan EPX2505 PRIME/SPRAY Valve Replacement Numbers
The following numbers help identify the correct assembly and listed replacement component:
- 0507690 identifies the complete Titan EPX2505 PRIME/SPRAY Valve Assembly.
- 700-251 Bypass Cam Base replaces 0507735.
The factory manual uses some original component numbers that differ from the current product listings. Use the current product number and verify compatibility before purchasing.
Troubleshooting Guide
Common Titan EPX2505 PRIME/SPRAY Valve Problems
| Problem | Parts to Inspect | Recommended Check |
|---|---|---|
| Material returns while in SPRAY mode | 800-910 Valve Seat and internal valve components | Check for a worn seat, debris or incomplete valve closure. |
| Fluid leaks around the valve | 700-537 Gasket, 700-721 O-Ring | Inspect seals, housing connections and mating surfaces. |
| Valve control is difficult to turn | 700-251 Cam Base, 0507662 Knob | Check for damage, dried coating or binding in the mechanism. |
| Sprayer will not prime | PRIME/SPRAY Valve and suction set | Confirm PRIME selection and inspect the intake and return pathways. |
| Sprayer fails to build pressure | Valve Seat, internal seals and fluid section | Check for unwanted bypass flow and other pump pressure-loss causes. |
| Valve knob is damaged | 0507662 Relief Valve Knob | Inspect the control and underlying cam mechanism before replacement. |
Buying Guide
How to Order the Correct EPX2505 Valve Part
Confirm Your Model
Verify the Titan EPX2505 piston pump model and revision.
Identify the Assembly
Confirm that the PRIME/SPRAY valve assembly is P/N 0507690.
Match the Diagram
Identify the correct reference and current product part number.
Shop AllTitanParts
Review product compatibility and order the replacement component.
Preventive Maintenance
Maintain Your Titan EPX2505 PRIME/SPRAY Valve
Flush After Spraying
Follow Titan's flushing procedure to reduce dried coating buildup in the valve and return circuit.
Inspect Valve Seals
Check gaskets and O-rings for deterioration whenever the valve is serviced.
Check Control Movement
Inspect the knob and cam mechanism for damage or abnormal resistance.
Monitor Return Flow
Investigate unexpected return flow during spraying or inadequate return flow during priming.
Related EPX2505 Assemblies
Shop More Titan EPX2505 Piston Pump Parts
EPX2505 Piston Pump Parts
Browse the complete EPX2505 parts directory.
EPX2505 Filter Assembly
Find filter bodies, filter elements, O-rings and related control components.
EPX2505 Fluid Section
Shop piston rods, inlet balls and valve seats.
EPX2505 Low Boy Suction Set
Find return hoses and siphon tubes.
Important PRIME/SPRAY Valve Service Safety
The EPX2505 operates with high-pressure fluid capable of causing injection injury. Before valve service, lock the spray gun trigger, turn off the sprayer, follow the complete pressure-relief procedure and disconnect electrical power. Turning the motor off alone does not release system pressure. Never loosen valve fittings while pressurized. Follow the Titan EPX2505 owner's manual and use qualified service assistance when necessary.
Titan EPX2505 PRIME/SPRAY Valve Repair Parts
Restore Reliable Priming and Spray Control
Shop valve gaskets, bypass valve seats, O-rings, cam bases and relief valve knobs for Titan EPX2505 PRIME/SPRAY Valve Assembly P/N 0507690.
Shop EPX2505 Prime/Spray Valve PartsFrequently Asked Questions
Titan EPX2505 Prime/Spray Valve Assembly FAQs
What is the Titan EPX2505 PRIME/SPRAY valve assembly part number?
The complete PRIME/SPRAY Valve Assembly is Titan part number 0507690.
What replacement parts are listed for the assembly?
The category lists Titan 700-537 Gasket, 800-910 Bypass Valve Seat, 700-721 O-Ring, 700-251 Bypass Cam Base and 0507662 Relief Valve Knob.
How many products are listed in this category?
Five individual replacement products are currently listed.
What does the PRIME/SPRAY valve do?
It controls whether material circulates through the return pathway for priming or is directed toward the spray hose during spraying.
What is the EPX2505 bypass valve seat part number?
Titan 800-910 Bypass Valve Seat is listed at diagram reference 6.
What replaces Titan 0507735?
Titan 700-251 Bypass Cam Base is listed as the replacement for Titan 0507735.
What is the EPX2505 relief valve knob part number?
Titan 0507662 Relief Valve Knob is listed at diagram reference 13.
Can a worn bypass valve seat cause low pressure?
Yes. A worn or damaged seat can allow unwanted return flow, preventing the pump from maintaining the intended spray pressure.
Why does paint return while the valve is in SPRAY mode?
Possible causes include a worn valve seat, debris or an internal valve sealing problem. Diagnose the valve and related fluid components before replacement.
Can I buy individual valve components instead of the complete assembly?
Yes. AllTitanParts lists several individual valve components. Availability of other internal components should be confirmed separately.
Does turning off the EPX2505 release fluid pressure?
No. Follow the complete Titan pressure-relief procedure, including operating the PRIME/SPRAY valve as instructed in the manual.
Where can I buy Titan EPX2505 Prime/Spray Valve Assembly Parts?
Shop the Titan EPX2505 Prime/Spray Valve Assembly Parts category at AllTitanParts or call 713-931-0006 for assistance.
Need Help Finding EPX2505 PRIME/SPRAY Valve Parts?
Have your Titan EPX2505 model, assembly number 0507690, diagram reference and original part number ready when contacting AllTitanParts.
713-931-0006