Graco 15D917 Compression Spring
$8.50
Available to Order
The Graco 15D917 Compression Spring provides reliable tension control in airless sprayer pumps, ensuring consistent fluid flow and stable pressure.
- High-carbon steel construction
- Shot-peened and phosphate-coated for durability
- Optimized for piston-driven pump assemblies
- Compact design for easy installation and maintenance
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Genuine OEM Part
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Graco 15D917 Compression Spring
The Graco 15D917 Compression Spring is engineered to deliver consistent performance in demanding coatings applications. Designed for airless sprayer pumps, this spring ensures precise tension control, stabilizes fluid flow, and resists fatigue under high-cycle use.
Key Features
- Durable high-carbon steel with shot-peened, phosphate-coated finish
- Precision dimensions: 0.65 in × 1.1 in × 0.5 in
- Optimized for consistent output pressures and pump efficiency
- Compact profile allows easy installation in tight pump assemblies
- Resists abrasive solvents and heavy-duty use
Specifications
| Specification | Details |
|---|---|
| Part Number | 15D917 |
| Material | High-carbon steel, shot-peened and phosphate-coated |
| Dimensions (L × OD × Wire) | 0.65 in × 1.1 in × 0.5 in |
| Weight | 0.05 lbs |
| Spring Rate | 10 lbf/in ±3% |
| End Configuration | Flat ground ends for parallel mating surfaces |
| Application | Piston-driven and diaphragm pumps in airless sprayer systems |
Materials and Surface Treatment
The spring is made from 97CrV6 derivative steel, shot-peened to reduce crack initiation, and phosphate-coated to resist corrosion from solvent-based coatings and abrasive particulates.
Design and Mechanical Performance
- Nominal load-deflection ensures stable pump stroke and seal longevity
- Uniform stress distribution along coils prevents permanent set
- Optimized coil pitch for predictable force-displacement characteristics
- Supports consistent output pressures even under thermal fluctuations
Applications
- Airless sprayer pumps for industrial and professional coatings
- Maintains consistent fluid flow and atomization quality
- Works with PTFE and fluorocarbon elastomer seals
- Compatible with high-pressure filtration systems
Installation and Maintenance
- Seat spring onto pump rod or plunger assembly aligned with guide pins or retaining clips
- Use light machine oil for initial lubrication to prevent galling
- Inspect free length and check for corrosion or deformation periodically
- Ensure flat ends make full contact with mating surfaces for consistent preload
Frequently Asked Questions
It provides precise tension control in piston-driven pumps, stabilizing fluid flow and maintaining consistent output pressure in airless sprayer systems.
It is made of high-carbon 97CrV6 derivative steel, shot-peened and phosphate-coated for corrosion resistance and extended fatigue life.
Inspect for corrosion, measure free length, and ensure end flats contact mating surfaces. Replace if deformation or wear is detected.
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