Connect blow guns, couplings and tools to the compressor line for blowing, inflating and working.

Reducer with pressure gauge and separator Fervi 0777/2
Also known as: air preparation unit, air treatment unit
Key features
- Connection1/4“ - 3/8“ - 1/2“
- Reading0–10 bar | 0–140 psi
- Gross weight (kg)0,66
- Packaging dimensions (mm)265 × 80 × 75
- EAN8012667237141
What it is
The Fervi 0777/2 regulator unit brings together a pressure regulator, pressure gauge and condensate separator in a single device for treating compressed air. It is fitted with 1/4", 3/8" and 1/2" connections and a pressure gauge with a 0÷10 bar and 0÷140 psi scale, while its weight of 0.66 kg reflects a solid construction suited to continuous use. The separator helps retain the moisture present in the line, supplying cleaner air to the tools.
A pressure regulator or pressure reducing valve is an in-line component that lowers the incoming compressed air pressure and holds it constant at the set value, usually with a pressure gauge to read it.
What it is for
Used for maintaining compressors and air lines and in compressed air treatment, removing condensate, oil and particulates before the air reaches the point of use.
How to use it
Install it in line in the direction of flow marked on the body, upstream of the tool or machine. Set the pressure with the knob, starting from a low value and increasing it to the one required by the equipment, without exceeding the stated maximum. Check the pressure gauge from time to time, and the fittings for leaks.
Where it is used
- Industrial plant engineering
- Food industry
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Connection: 1/4“ - 3/8“ - 1/2“
- Reading: 0–10 bar | 0–140 psi
- Gross weight (kg): 0,66
- Packaging dimensions (mm): 265 × 80 × 75
Who it is for
Designed for industrial maintenance technicians and mechanics.
Related products
- Reducer with pressure gauge, separator and oiler Fervi
- Reducer with pressure gauge and separator Fervi
- Compact screw compressor CUBE 4.0-10-270 ES Fini Compressori — from the category Screw Compressors
- Set of 2 male German-type quick couplers Fervi 0783/2M — from the category Compressed Air Accessories and Tools
- Refrigerated dryer COOL 72 - 1200l/min - 16bar - 230v/50Hz Abac — from the category Refrigerated Compressed Air Dryers
- Browse the whole category: FRL Air Treatment Units
Before you order
In your request, please state the connection type and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Indicative price €25,44 – €42,40 + VAT
Incl. 22% VAT: €31,04 – €51,73
Indicative, excluding VAT, depends on quantity, ex works: the final price is the one in your quote
Source: Listino Fervi (fervi.com) · updated 21/07/2026
Specifications 5
| Connection | 1/4“ - 3/8“ - 1/2“ |
|---|---|
| Reading | 0–10 bar | 0–140 psi |
| Gross weight (kg) | 0,66 |
| Packaging dimensions (mm) | 265 × 80 × 75 |
| EAN | 8012667237141 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Seal threaded joints and fittings, preventing water and gas leaks.
Remove moisture from compressed air before it reaches the air line and the tools.
Store compressor air to stabilise pressure and reduce start-ups.




