Part 448-243 is a replacement pressure control knob used on compatible PowrTwin, PowrTex, PowrLiner, and hydrax spray equipment. This knob allows operators to adjust system pressure for different spraying applications. When the original knob becomes stripped, cracked, or difficult to turn, replacement restores precise pressure control.
| Part Number | 448-243 |
|---|---|
| Part Description | Pressure Control Knob |
| Brand | Universal |
| Fits | PowrTwin TM 8900 XLT; PowrTwin 12000GHD; PowrTwin 12000GH; PowrTwin 12000 XLT; PowrTwin 12000 XLT DI; PowrTwin 12000 Plus DI service; PowrTwin 12000 GHD; PowrTwin 8900GH; PowrTwin 6900GH; PowrTwin 6900 XLT; PowrTwin 6900 XLT DI; PowrTwin 6900 , 12000 Plus DI; PowrTwin 4900GH; PowrTwin 4900 XLT; PowrTwin 4900 , 6900 , 8900, 12000 Plus; PowrTwin 4500; PowrTwin 3500 50th anniversary; PowrTex 6900SF, 12000SV; PowrTex 6900SF, 12000SV 0528919D; PowrLiner 8900; PowrLiner 8900 XLT; PowrLiner 8900 XLT SP; PowrLiner 6950_1; PowrLiner 6950; PowrLiner 6900 XLT; PowrLiner 6900 XLT SP; PowrLiner 6000; PowrLiner 5000; PowrLiner 4950; PowrLiner 4900; PowrLiner 4900 XLT; PowrLiner 4000; hydrax 4540 - 7230 |
| Condition | New |
The 448-243 pressure control knob is a direct replacement operator interface component for an extensive range of PowrTwin, PowrTex, PowrLiner, and hydrax spray equipment models. This knob is typically mounted on the pressure control valve or regulator, allowing the operator to adjust system pressure by turning the knob to increase or decrease the pressure setting. Precise pressure adjustment is essential for achieving proper atomization, spray pattern, and material delivery for different coatings and applications. The knob features an ergonomic design with a textured grip for easy operation, even when wearing gloves. A worn, stripped, or damaged knob can make accurate pressure adjustment difficult or impossible, leading to inconsistent spray results and operator frustration. This replacement knob is manufactured to match original specifications for fit and function. Installation typically involves removing the old knob and securing the replacement with a set screw or push-on fit. Regular inspection helps identify knobs with damaged threads or worn grip surfaces before they affect adjustability.
| Pressure adjustment | Allows operator to set system pressure |
|---|---|
| Operator interface | Provides comfortable, precise control |
| Setting retention | Maintains pressure setting during operation |
| Stripped / worn threads | Knob spins without adjusting pressure |
|---|---|
| Cracked or broken | Visible damage prevents proper use |
| Smooth / slippery grip | Worn texture makes adjustment difficult |
| Loose mounting | Knob wobbles on valve stem |
Pressure control knob 448-243 is compatible with the following models. Verify fit using your equipment's parts diagram.
| Compatible Series | Models |
|---|---|
| PowrTwin | TM 8900 XLT; 12000GHD; 12000GH; 12000 XLT; 12000 XLT DI; 12000 Plus DI service; 12000 GHD; 8900GH; 6900GH; 6900 XLT; 6900 XLT DI; 6900, 12000 Plus DI; 4900GH; 4900 XLT; 4900, 6900, 8900, 12000 Plus; 4500; 3500 50th anniversary |
| PowrTex | 6900SF, 12000SV; 6900SF, 12000SV 0528919D |
| PowrLiner | 8900; 8900 XLT; 8900 XLT SP; 6950_1; 6950; 6900 XLT; 6900 XLT SP; 6000; 5000; 4950; 4900; 4900 XLT; 4000 |
| hydrax | 4540 - 7230 |
When replacing the pressure control knob, inspect these associated components to ensure proper pressure regulation.
Check for smooth operation and proper function.
Inspect for damage or wear on mating surface.
Inspect threads and replace if worn.
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