Oil-Less Tank Mounted Air Compressors With Digital Pressure Switch & Auto Tank Drain. For Use In Dry Pipe & Pre-Action Fire Sprinkler Systems.
Introducing the most advanced Fire Protection Air Compressors ever built! Featuring an all-new, UL 508 Listed, General Air Products Digital Pressure Switch and an Automatic Tank Drain Valve.
Digital Pressure Switch:
The ONLY UL-Listed Digital Pressure Switch in the Fire Protection industry designed and built by the compressor manufacturer themselves. Displays Pressure Readings, Run Hours, Amps, Cycles, and is extremely easy to adjust pressure settings in the field.
As with all of our fire protection air compressors, the OLT Advance Series is specifically engineered to pressurize dry pipe and pre-action sprinkler systems according to the parameters of NFPA 13. Tank mounted air compressors are recommended as the ideal type of compressor for dry pipe sprinkler applications.
All of our OLT Advance single phase standard pressure units are UL 1450, Supplement SC listed for fire protection, fully automatic, and virtually maintenance free. We include a 30” braided stainless steel flex hose with a ½” NPT union, and 4 vibration isolation pads to allow for a fast and easy installation.
The OLT Advance Series fire protection air compressors cover 30 minute fill up times on sprinkler systems up to 600 gallons in size.
Lead Time: 1 week to ship
OLTV915 – OLTV1225: 5 weeks
For large orders & exact lead times, please consult factory.
Note: As of April 14th 2025 we altered our fire protection air compressor model numbers. Obsolete models have been replaced by the new models below. If you need technical information on the obsolete fire protection air compressors click here.
Note: An AMD-1 air maintenance device is required by code with all tank mounted fire protection air compressors. Multiple dry valves may be supplied from a single tank mounted compressor when using our AMD-1 on each individual system.
ANNUAL MAINTENANCE REMINDERS
Do you know when your Fire Protection Air Compressor is due for maintenance?
Model Number | System Capacity (gal) | Order Maintenance Kit | Engineering Submittal Package | Wiring Guide | Cut Sheet |
|---|---|---|---|---|---|
120 (gal) @ 40 PSI |  |  |  | | |
250 (gal) @ 40 PSI | | | | | |
400 (gal) @ 40 PSI | | | | | |
500 (gal) @ 40 PSI | | | | | |
600 (gal) @ 40 PSI | | | | | |
915 (gal) @ 40 PSI | | | | | |
1100 (gal) @ 40 PSI | | | | |
Click on the model numbers to find additional product information and to order maintenance kits
Model Number | System Capacity (gal) | Order Maintenance Kit | Engineering Submittal Package | Wiring Guide | Cut Sheet |
|---|---|---|---|---|---|
400 (gal) @ 40 PSI | | | | | |
500 (gal) @ 40 PSI | | | | | |
600 (gal) @ 40 PSI | | | | | |
915 (gal) @ 40 PSI | | | | | |
1095 (gal) @ 40 PSI | | | | |
Click on the model numbers to find additional product information and to order maintenance kits
Model Number | System Capacity (gal) | Order Maintenance Kit | Engineering Submittal Package | Wiring Guide | Cut Sheet |
|---|---|---|---|---|---|
120 (gal) @ 40 PSI | | | | | |
250 (gal) @ 40 PSI | | | | | |
400 (gal) @ 40 PSI | | | | | |
500 (gal) @ 40 PSI | | | | | |
600 (gal) @ 40 PSI | | | | | |
915 (gal) @ 40 PSI | | | | | |
1095 (gal) @ 40 PSI | | | | |
Click on the model numbers to find additional product information and to order maintenance kits
Model Number | 20 PSI | 30 PSI | 40 PSI | 50 PSI | 60 PSI | 70 PSI | 80 PSI | 90 PSI | 100 PSI |
|---|---|---|---|---|---|---|---|---|---|
OLTV120-A | 265 (gal) | 170 (gal) | 120 (gal) | 95 (gal) | 75 (gal) | 65 (gal) | 55 (gal) | 45 gal | 40 (gal) |
OLTV250-A | 565 (gal) | 350 (gal) | 250 (gal) | 190 (gal) | 155 (gal) | 125 (gal) | 105 (gal) | 90 (gal) | 75 (gal) |
930 (gal) | 595 (gal) | 400 (gal) | 325 (gal) | 255 (gal) | 215 (gal) | 180 (gal) | 155 (gal) | 135 (gal) | |
1030 (gal) | 655 (gal) | 500 (gal) | 360 (gal) | 290 (gal) | 240 (gal) | 200 (gal) | 170 (gal) | 145 (gal) | |
1250 (gal) | 790 (gal) | 600 (gal) | 435 (gal) | 350 (gal) | 285 (gal) | 240 (gal) | 210 (gal) | 180 (gal) | |
OLTV915-A | 2190 (gal) | 1325 (gal) | 915 (gal) | 680 (gal) | 525 (gal) | 420 (gal) | 340 (gal) | 280 (gal) | 240 (gal) |
OLTV1095-A | 2630 (gal) | 1625 (gal) | 1095 (gal) | 860 (gal) | 690 (gal) | 555 (gal) | 465 (gal) | 390 (gal) | 340 (gal) |
pre-action fire sprinkler systems to supervisory pressure within 30 minutes per NFPA 13.
Additional Downloads
- OLT Series Installation & Operation Manual
- Digital Pressure Switch Quick Reference Guide
- OLT Series Installation Drawing
- Air Compressor Installation Checklist
- Air Compressor Maintenance and Troubleshooting Guide
- How To Select Air Compressors for Fire Sprinkler Systems
- Spanish – OLTV Series Cut-sheet
Not sure which air compressor you need?
Answer a few simple questions about your sprinkler system and our Air Supply Builder will help you find the right General Air Products compressor, accessories, and technical documentation.
- Find the right model for your system
- Download the corresponding cut sheet
- Copy and paste a ready-to-use specification
Build the right air supply for your dry or pre-action sprinkler system
Based on your selections
Are you supervising one or multiple risers?
Do you prefer oil-less or lubricated operation?
How will the compressor be mounted?
Look for the UL 1450, Supplement SC listing label (red sticker) on the unit to confirm compliance. To meet NFPA 13 (2025) requirements, a fire protection air compressor shall be listed for fire protection use. You can read more about UL 1450, Supplement SC in our article
UL 1450 is a general safety standard covering motor-operated air compressors, vacuum pumps, and painting equipment. UL 1450, Supplement SC is a stricter certification specifically for fire protection air compressors, ensuring they meet the higher performance and reliability requirements of fire sprinkler systems. You can read more about UL 1450, Supplement SC requirements here
Fire protection air compressors must restore system pressure within 30 minutes per NFPA 13. Compressor sizing is based on system volume (gallons), and for multiple risers, the largest system should be used for sizing.
Oil-less compressors require less maintenance and are ideal for most applications. Lubricated compressors require regular oil changes but may offer durability in certain conditions.
Riser-mounted compressors save space, while tank-mounted compressors are required for systems serving multiple risers per NFPA 13 (2025) 8.2.7.5.1.
Advance Series compressors feature a digital pressure switch with advanced monitoring capabilities, while Plus Series compressors use a traditional mechanical pressure switch.
General Air Products Digital pressure switches provide real-time system data including pressure, run hours, and cycles, and allow for easy adjustments during installation and maintenance. In addition they have fewer moving parts, often providing better long term reliability.
The ideal air supply depends on your application: compressed air for general use, dry air for cold storage to prevent freezing, and nitrogen generators or Vapor Pipe Shield for corrosion mitigation.
Maintenance kits for General Air Products compressors are available through authorized distributors or directly from General Air Products. You can find your local General Air Products distributor through our distributor locator tool or use our maintenance kit lookup tool
Fire protection air compressors should be maintained annually in accordance with NFPA 25 and manufacturer recommendations to ensure system reliability and compliance. Maintenance kits can be purchased through your local distributor or through our maintenance kit lookup tool
If you experience issues with your fire protection air compressor, contact General Air Products technical support at 1-800-345-8207 or through the chat feature in the lower right corner for expert assistance - from a real live person, we promise 🙂
General Air Products compressors are available through our nationwide network of fire protection distributors. Use our distributor locator to find a supplier near you.
All General Air Products fire protection air supplies include a standard 1-year manufacturer warranty. Contact us or refer to product manuals full warranty details.
Replacement parts are available through authorized distributors or directly from General Air Products below each product page. Contact technical support at 1-800-345-8207 or through the chat feature in the lower right corner if you need help identifying parts.
Q Series air compressors operate at approximately 50–55 decibels, making them significantly quieter than traditional compressors and ideal for noise-sensitive environments.
Fire Sprinkler System Training
The National Fire Sprinkler System Training Center at General Air Products is located in Exton, Pennsylvania. This NICET recognized training facility is state-of-the-art and features fire sprinkler products from several manufacturers in the fire protection industry allowing attendees to get hands-on with a variety of live equipment. We also offer virtual training and webinars online.