Airless / Advantage / Performer / PowrLiner / PowrTex / ProMark II / RentSpray700 part 800-907 is an NPTF plug used to seal unused threaded ports in the fluid system of compatible sprayers. This precision-machined plug features National Pipe Taper Fuel (NPTF) threads designed for dryseal applications, creating a leak-proof seal without the need for additional sealant in many cases. It is essential for blocking test ports, accessory outlets, or unused connections on a wide range of models.
| Part Number | 800-907 |
|---|---|
| Part Description | NPTF Plug |
| Brand | Airless / Advantage / Performer / PowrLiner / PowrTex / ProMark II / RentSpray700 |
| Fits |
|
| Condition | New |
The Airless / Advantage / Performer / PowrLiner / PowrTex / ProMark II / RentSpray700 800-907 NPTF plug is a precision-threaded component designed to seal unused ports in the fluid system. NPTF (National Pipe Taper Fuel) threads are engineered for dryseal applications, where the threads themselves create a leak-proof seal through controlled deformation during tightening.
These plugs are commonly used to seal test ports, accessory outlets, or unused connections on pumps, manifolds, and filter housings. Over time, plugs can become damaged from over-tightening, corrosion, or thread galling. A damaged or missing plug can cause fluid leaks, pressure loss, and contamination. Replacing with a new NPTF plug ensures proper sealing and system integrity.
| Seals unused ports | Blocks threaded openings not in use |
|---|---|
| Prevents leaks | Creates leak-proof seal in fluid system |
| Maintains pressure | Prevents pressure loss through unused ports |
| Dryseal design | NPTF threads seal without additional sealant in many applications |
| Damaged threads | Stripped or galling threads prevent proper sealing |
|---|---|
| Rounded drive | Damaged hex or drive makes installation/removal difficult |
| Corrosion or rust | Surface degradation compromises sealing |
| During disassembly | Replace if plug shows any signs of wear |
| Leaking port | Plug may not seal properly due to wear |
Part 800-907 is compatible with the following sprayer models. Always verify thread size and application before ordering.
| Brand / Model | Component |
|---|---|
| Airless 1140IX | NPTF Plug |
| Airless 1140I | NPTF Plug |
| Airless 1140IX Digital | NPTF Plug |
| Airless 840I | NPTF Plug |
| Airless 840IX | NPTF Plug |
| Airless 840IX Digital | NPTF Plug |
| Advantage 1100 | NPTF Plug |
| Advantage 700 | NPTF Plug |
| Performer 1140IX | NPTF Plug |
| PowrLiner 2800 | NPTF Plug |
| PowrTex 1200SF | NPTF Plug |
| ProMark II (Model No 759-2010) | NPTF Plug |
| RentSpray700 | NPTF Plug |
When working with threaded ports, these components are often inspected or replaced alongside the NPTF plug.
Other fittings using the same port size may need replacement.
PTFE tape or pipe thread sealant for additional sealing insurance.
Adapters that convert port sizes for different applications.
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