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Graco 118359 Pressure Control Knob

The Graco 118359 Knob Pressure Control offers precise, reliable pressure adjustment for select Graco airless sprayers, ensuring consistent spray performance.

  • Pressure Range: 0–3000 PSI with 10 PSI detents
  • Compatible Models: Ultra Max II 695, 495, 795, Magnum X7, ProX19
  • Material: Aluminum alloy bonnet & 17-4 PH stainless steel spindle
  • Seals: PTFE-coated fluorocarbon for chemical resistance
  • Ergonomic Knob: Easy to adjust with tactile detents

Retail Price: $59.75
You save: $4.53 (7.58%)
Our Price: $55.22
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Graco 118359 Knob Pressure Control Overview

Compatible Machines

  • Graco Ultra Max II 695 Airless Sprayer
  • Graco Ultra Max II 495 Airless Sprayer
  • Graco Ultra Max II 795 Airless Sprayer
  • Graco Magnum X7 Airless Sprayer
  • Graco ProX19 Airless Sprayer

Key Features

  • Precise Pressure Adjustment: Ensures consistent spray patterns and flow control.
  • Durable Construction: Aerospace-grade aluminum alloy and 17-4 PH stainless steel spindle.
  • Ergonomic Knob: Knurled surface with detent mechanism for tactile feedback.
  • Sealed Mechanism: PTFE-coated o-ring and fluorocarbon elastomers for chemical resistance.
  • Quick Installation: Standard 1/4″ NPT threads with anti-rotation flange.

Specifications

Specification Details
Pressure Range 0–3000 PSI
Increment Clicks 10 PSI per detent
Spindle Material 17-4 PH Stainless Steel
Outer Bonnet Aerospace-grade Aluminum Alloy
Seals Fluorocarbon elastomers with PTFE backup rings
Temperature Range –20 °C to 150 °C
Installation 1/4″ NPT inlet threads with anti-rotation flange
Latency (Min to Max) Under 50 milliseconds

Usage and Maintenance

Attach the knob using standard tools; hand torque creates a leak-tight seal. Adjust pressure easily with the detent mechanism and quick-lock lever to prevent accidental changes. Periodic inspections maintain optimal performance, and standardized parts simplify replacements.

Frequently Asked Questions

Compatible with Graco Ultra Max II 695, 495, 795, Magnum X7, and ProX19 Airless Sprayers.

The knob allows adjustment from 0 to 3000 PSI in 10 PSI increments for precise control.

Aerospace-grade aluminum for the outer bonnet, 17-4 PH stainless steel spindle, and fluorocarbon/PTFE seals for chemical and temperature resistance.

Inspect detent mechanism, spindle, and seals regularly. Lubricate sealing surfaces and replace standardized parts as needed for smooth operation.

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