Part number 0270291 is an Outlet Valve Seat that provides a precision sealing surface for the outlet check valve on compatible SprayTech and HVLP Airspray systems. This critical component ensures proper one-way fluid flow out of the pump for reliable pressure generation and consistent spray performance.
| Part Number | 0270291 |
|---|---|
| Part Description | Outlet valve seat |
| Fits | SprayTech ED655; HVLP Airspray ProFinish AS1130 |
| Condition | New |
Part number 0270291 is an Outlet Valve Seat specifically engineered for the SprayTech ED655 airless pump and the HVLP Airspray ProFinish AS1130 spray gun systems. The ED655 is a professional airless pump delivering up to 2600 PSI spraying pressure for residential and commercial painting applications. The ProFinish AS1130 is a high-performance HVLP spray gun designed for fine finishing work. This outlet valve seat provides the precision sealing surface against which the outlet ball seats, forming the one-way check valve that allows pressurized material to flow out of the pump during the pressure stroke and prevents backflow during the suction stroke.
Manufactured from wear-resistant materials with a precision-machined sealing surface, this seat is subjected to continuous impact from the valve ball and abrasive wear from coating materials. Over time, the sealing surface can become pitted, worn, or damaged, compromising the valve's ability to seal properly. Symptoms of a worn outlet valve seat include loss of pressure, surging output, and material leaking back into the pump.
Replacement with genuine 0270291 outlet valve seat, along with a new valve ball, restores proper check valve function and ensures reliable pressure generation and consistent spray performance. This component is essential for maintaining the professional performance of ED655 and ProFinish AS1130 systems.
| Valve Sealing Surface | Provides precision mating surface for outlet valve ball |
|---|---|
| Pressure Maintenance | Ensures one-way flow out of pump for consistent pressure |
| Backflow Prevention | Prevents material from flowing back into pump during suction stroke |
| Pressure Loss | Pump primes but will not build or maintain full operating pressure |
|---|---|
| Surging Output | Pressure fluctuates during operation |
| Visible Damage | Pitting, scoring, or deformation of sealing surface |
| Valve Service | Replace during outlet valve overhaul, always with ball |
Part number 0270291 is specifically designed for the SprayTech ED655 airless pump and the HVLP Airspray ProFinish AS1130 spray gun systems. The ED655 delivers up to 2600 PSI for residential and commercial painting applications. The ProFinish AS1130 is a professional HVLP spray gun for fine finishing work. This outlet valve seat is a model-specific component engineered for the sealing requirements of these particular sprayer systems. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Compatible Models | Component |
|---|---|
| SprayTech ED655 | Outlet valve seat |
| HVLP Airspray ProFinish AS1130 |
The outlet valve seat is one component of the outlet valve assembly. When servicing this component, these related parts should be replaced simultaneously.
The ball that seals against this seat. Replace ball and seat together as a matched set.
Provides force to return ball to seat. Inspect for loss of tension.
Housing for the valve components. Inspect for thread damage.
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