The Val-Air 50-15AL (M-17190) is a super-silent, 1/2 HP, 4-gallon air compressor engineered for heavy-duty professional use in engraving, stonesetting, and metalsmithing studios. Operating at a whisper-quiet 40 dB, it delivers consistent, clean compressed air while protecting sensitive equipment such as GRS engraving systems with its built-in coalescing filtration. Capable of powering two engraving systems simultaneously — and used at trade shows running three apparatus at once — this compressor is well suited to both single-operator benches and multi-user shops.
The Val-Air 50-15AL builds on the Sil-Air 50-15 platform with three key upgrades: an aluminum pump housing with cooling fins to prevent overheating during continuous operation, an auto drain with waste bottle to capture moisture from the compression process, and an in-line coalescing filter rated to 0.01 micron — a requirement for protecting GRS Graversmith, Gravermax, Gravermate, Gravermax SC, Gravermax G-8, Gravermach, Gravermach AT, and GRS System 3 equipment. The 4-gallon tank features an internal paint coating to resist rust, and the unit provides automatic operation with thermal overload protection.
Recommended for use with GRS engraving systems and pencil bead blasters.
Features
- Super-silent operation at 40 dB — suitable for studio and trade show environments
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Aluminum pump housing with cooling fins prevents overheating during heavy continuous use
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Auto drain with waste bottle removes moisture collected during air compression automatically
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In-line coalescing filter (0.01 micron) removes moisture and protects GRS engraving systems
- Internally painted 4-gallon tank for enhanced rust resistance
- Automatic operation with thermal overload protection
- Pressure regulator with built-in moisture trap
- Analog line pressure gauge and tank pressure gauge included
- Safety valve and air intake filter included
- Carrying handle for portability
- Can power 2 engraving systems simultaneously
Specifications
| Part Number |
M-17190 |
| Motor |
1/2 HP |
| Tank Capacity |
4.0 gallons |
| CFM Rating |
2.15 free air (60 liters per minute) |
| Operating Pressure |
84–114 PSI (5.8–7.8 bar) |
| Voltage |
110V – 60 Hz (220V – 50 Hz or 220V – 60 Hz by special order) |
| Sound Level |
40 dB |
| Dimensions |
13.8" D × 13.8" W × 21.7" H (350 × 350 × 550 mm) |
What's Included
- 4.0-gallon internally painted tank
- 1/2 HP motor with aluminum pump housing and cooling fins
- In-line coalescing filter (0.01 micron)
- Auto drain and waste bottle
- Pressure regulator with built-in moisture trap
- Analog line pressure gauge
- Tank pressure gauge
- Safety valve
- Air intake filter
- Carrying handle
- Air compressor oil
- 1-year factory warranty
Notes
Maintenance Tip: Super Silent compressors use a specially formulated hygroscopic oil that draws moisture from air during compression. Change the oil regularly — if it appears milky white, it has been left too long. Check and empty the moisture trap near the output regulator when full. After each use, release compressed air from the tank to prevent condensation buildup that can cause internal rust. These steps protect the pump, internal components, and tank from water damage.
