Technical selection
Specifications and configuration
Reference — FITOK FH high-capacity bypass filter series
| Parameter | Documented value / configuration |
|---|---|
| Construction and service | High-capacity bypass filter with bottom sampling/cleaning access and removable metal screen elementConditions: scope: FH family description; exact port and element need selected order code |
| Listed wetted materials | F316 stainless head, 316 stainless cylinder/element; FKM default O-ring with other listed elastomer optionsConditions: scope: Verify specific seal option and coolant additive compatibility |
| Published series pressure | Up to 345 bar (5000 psig) maker-published FH series pressureConditions: scope: Series upper limit; not a guarantee for every element, seal, coolant or site-supplied configuration |
| Filter area and pore options | 4H: 10.70 in² (6908 mm²); 8H: 71.50 in² (46128 mm²); catalogue nominal pore options 5, 25, 100, 150, 250 and 450 µmConditions: scope: 4H/8H are distinct element area grades; 450 µm is listed only for 8H; not all combinations assumed available |
Manufacturer series reference. Confirm the exact order code, mating parts and stated conditions for the quoted configuration.
Overview
The FH uses a larger element chamber than the compact FB form and provides a bottom bypass point for service or sampling. It is a distinct equipment-side filtration purchasing item.
Construction and interfaces
The manufacturer lists an F316 stainless head, 316 stainless cylinder and removable metal element. FKM is the stated standard O-ring; alternate elastomers require deliberate fluid review.
Selection
Select 4H or 8H area, pore grade, line and bypass port sizes, seal and allowable pressure drop. The project loop's contamination load and access route determine maintenance suitability.
Configuration options
The catalogue lists 4H and 8H filter areas with several nominal pore sizes and metal-screen constructions. Not every pore/area/seal combination is assumed available without a valid order code.
Application limits
The maker's 345 bar figure is a series upper rating, not the capability of an unselected assembly or this site's guarantee. Element differential pressure and seal temperature are separate limits.




