Filling Plug Miselli Series FSB
The Miselli Filling Plug Series FSB in durable chrome-plated steel for hydraulic systems internally integrates a polyurethane air filter rated at 40µ (10µ optional). It ensures high air flow rates up to 950 Lt/min. Standard installation includes a drilled flange with bayonet coupling and fixing screws. The complete range includes configurations with weld-on flange, integrated safety padlock, and practical removable 800µ metal filtering basket. Ideal component for contamination control.
The components of the Miselli Filling Plug Series FSB family are metal filling and breather devices specifically designed for integration on hydraulic components. The main structure of these plugs is made of durable chrome-plated steel. Inside, a polyurethane air filter is positioned to ensure effective fluid contamination control. The standard filtration rating offered is 40µ, but for specific operating requirements, a filter with a 10µ filtration rating is also available as an alternative. The flat gaskets supplied, for both the internal and external parts, are made of cork as standard. However, upon specific request, the plugs can be equipped with NBR 70 Sh synthetic rubber gaskets for greater chemical compatibility.
The technical offer is versatile and includes several models to adapt to multiple configurations and installation spaces. The FSB/05 model represents the most compact version, characterized by a weight of only 96 grams and an air flow rate of 120 Lt/min. The models belonging to the FSB/25 series guarantee superior fluid-dynamic performance, reaching a nominal air flow rate of 600 Lt/min (with peaks up to 950 Lt/min depending on the specific measurements indicated by the manufacturer) and structural weights ranging from 290 to 327 grams. To maximize the safety of power units and hydraulic systems, the company makes the FSB/25/L model available upon request, equipped with a robust safety padlock. Another specialized variant is the FSB/25/38 model: this component integrates an additional metal filtering basket with an 800µ mesh, designed to be fully removable, thus facilitating cleaning and maintenance cycles. Finally, the FSB/25 BM configuration is intended for non-standard mounting and is supplied as standard with a practical aluminum side support plate.
The mounting methods of the Miselli Filling Plug Series FSB are engineered to offer solidity and flexibility of use. Basic installation is carried out by means of a drilled flange, fixed with six M5 mounting screws, and uses a quick bayonet coupling system. In industrial applications where it is technically impossible or structurally undesirable to drill the tank, the FSB/25SD model is used. This technical version stands out for its weld-on flange completely without holes, allowing permanent, leak-free fixing directly onto the metal structure of the tank.
These metal accessories are essential for strict contamination control and air management within hydraulic circuits. The air flow capacities are sized to support different hydraulic pump sizes, covering a range from 120 Lt/min for the base FSB/05 model up to the 600 Lt/min declared in the table for larger variants such as FSB/25, FSB/25/L, FSB/25150/, FSB/25SD and FSB/25/38. The combination of chrome-plated steel and polyurethane filtering solutions ensures long-term reliability.
Technical summary table of the main characteristics of the Miselli Filling Plug Series FSB
| Feature | Value |
|---|---|
| Body material | Chrome-plated steel |
| Air filter material | Polyurethane |
| Air filtration rating (Standard) | 40µ |
| Air filtration rating (Optional) | 10µ |
| Metal filtering basket | 800µ (removable in the FSB/25/38 model) |
| Maximum air flow rate | Up to 950 Lt/min |
| Standard mounting | Drilled flange, 6 M5 screws, bayonet coupling |
| FSB/25SD mounting | Weld-on flange without holes |
| Standard gaskets | Flat cork gaskets (internal and external) |
| Gaskets on request | NBR 70 Sh synthetic rubber |
| Safety option | Padlock (FSB/25/L model) |
| Support plate | Aluminum (FSB/25 BM model) |
| FSB/05 model flow rate | 120 Lt/min |
| FSB/25 Series model flow rate | 600 Lt/min (nominal) |
| FSB/05 weight | 96 g |
| FSB/25 / FSB/25SD / FSB/25/38 weight | From 290 g to 327 g |