Proven British rotary vane reliability: the Hydrovane 25 series (504 model) is a legendary, low-maintenance fixed-speed compressor with direct-coupled air-end design (no belts or gears) for exceptional durability – often exceeding 100,000 operating hours with proper care.
Fully refurbished in 2025 by Airlink Compressors (airlinkcompressors.com) using only genuine Hydrovane spares throughout. This unit includes a fitted condensate management system (oil/water separator + automatic drain) to remove moisture and contaminants, ensuring cleaner downstream air and protecting tools/equipment. Genuinely low running hours for its age, with service history where documented.
Key features and benefits:
- 4 kW (5.5 HP) fixed-speed motor, 3-phase 415V supply
- Working pressure: 8 bar (116 psi)
- Free Air Delivery: 24.6 CFM (0.70 m³/min) at 8 bar
- Rotary vane technology – continuous duty rated, pulse-free, clean air output
- Extremely quiet and low-vibration – typically 65-73 dB(A) depending on enclosure/mount
- Direct drive for maximum reliability and minimal maintenance
- Fitted condensate system for drier, higher-quality air
- Simple design with long service intervals and low oil consumption
- Easy installation – free-standing or receiver-mounted (receiver options available)
Full refurbishment using genuine Hydrovane spares includes:
- Complete strip-down and inspection of vane element with new genuine blades, seals and gaskets
- New genuine air filter, oil filter and full Hydrovane-approved lubricant change
- Condensate system fully serviced/replaced (separator cartridge, auto-drain valve tested)
- Motor bearings inspected/greased or replaced as required
- Full electrical safety check and controls verification
- 8-hour full-load test with printed performance report
- 6-month parts & labour warranty (extendable to 12 months)
Perfect for small workshops, garages, tyre bays, spray shops, light engineering or any application needing quiet, dependable compressed air with minimal servicing and clean output.
One unit available – fully serviced, tested and ready for immediate UK-wide delivery or collection from airlinkcompressors.com.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Hydrovane (CompAir) – Made in UK |
| Model | 25 Series (504) |
| Type | Fixed-Speed Rotary Vane |
| Power | 4 kW (5.5 HP) |
| Motor Efficiency | Standard (IE2/IE3 equivalent) |
| Electrical Supply | 415V / 3 Phase / 50 Hz |
| Working Pressure | 8 bar (116 psi) |
| Free Air Delivery (FAD) | 24.6 CFM (0.70 m³/min) at 8 bar |
| Noise Level | Approx. 65-73 dB(A) |
| Drive System | Direct coupled (no belts/gears) |
| Cooling | Air-cooled |
| Condensate System | Fitted (oil/water separator + auto drain) |
| Dimensions (approx., base unit) | Varies by mount (e.g. ~1,455 × 455 × 990 mm receiver version) |
| Weight (approx.) | 150-250 kg depending on mount |
| Air Connection | Typically G 1/2" |
Yes, airlinkcompressors.com offer an installation & commissioning service, please contact support for further information on technical@airlinkcompressors.com
If you purchase any equipment from airlinkcompressors.com you are entitled to free full technical support from experts in the trade, supporting with installation, repairs & servicing. We also offer onging maintenance packages inhouse, please contact technical@airlinkcompressors.com for further information.
Yes, airlinkcompressors.com deliveries can be sent to different adresses across the UK.
Yes, we do deliver to NI (Northern Ireland) for larger items please ask for a carrige costing - sales@airlinkcompressors.com
Yes, a VAT invoice is sent automatically once the order has been dispatched to the email address supplied when originally ordered.
Yes, airlinkcompressors.com offer an installment option through Klarna, Please click here for further information.
Trusted by Our Customers
"Excellent Service"
Excellent service, correct part identified and delivered on time. Compressor up and running with little downtime.
"Great Products"
Placed my order late on a Sunday night, got the usual automated email followed by an email from Gill thanking me for my order with a delivery due the Thursday or Friday. To my surprise turned up on Wednesday spot on, nice to have early delivery. Thanks
"Good Range Of Compressors"
Good range of compressors to choose from with good information and specifications. Purchase was smooth and easy, SIP were slow to ship but the team hurried them along.
