Atkinson Filstop Overfill-Prevention Valve
Designed to fit at the fill point on metal or plastic Diesel tanks, the Filstop physically closes the inlet of the tank should the level in the tank reach the level of its float, this prevents the tank from being overfilled or bursting, and hence reduces the risk of pollution resuting from such an occurrence
Kit comes complete with inner tank sealing Flange, O'Ring, and Locking Nut for use on plastic tanks, the Filstop can also be used on steel tanks with a 2"BSP welded inlet thread, by discarding the flange and screwing directly into the BSP thread, using a thread sealant to lock the valve into position at the required point
Performance| Max Flow | 660 lpm |
| Min Flow | <23 lpm |
| Leak Rate When Closed | <2.5 lpm |
| Max Working Pressure | 8 Bar |
| Max Spike Pressure | 12 Bar |
| Min Working Pressure | 150 mb |
| Tank Fitting | Various, See Option Characteristics Below |
Option Characteristics| Option | Fitting Characteristics |
| Plastic Tank Fitment | Supplied with spiked-ring glued onto bottom of thread, and top hex nut |
| Steel Tank Fitment | Parallel 2"BSP Male to thread down into female 2"BSP tank fitting (no spiked-ring included) |
Wetted Components| Body | Anodised Aluminium |
| Guide | Anodised Aluminium |
| Piston | Anodised Aluminium |
| Stem | 303 Stainless Steel |
| Float | Aluminium |
| Guide Seal | Viton |
| Seal Retaining Clip | 316 Stainless Steel |
| Seal Retaining Ring | Brass |
| Debris Gauze | Brass & 316 Stainless Steel |
Download Atkinson Filstop - Datasheet PDF
