Needle Felt Filter Bag is a type of economical, single-use filter bag. The surface does not lose fiber easily and the 3-dimensional deep filtration medium, made with heat welding technology, ensures that the filtration efficiency is high and does not produce side leakages. It is commonly used in relatively stable environments where the fluid is of low to medium viscosity with reasonably high flow rate. It can effectively filter different soft and hard particles. According to different filtration efficiency and flow rates, different materials such as polypropylene, polyethylene terephthalate (PET) and polyamides can be custom-made to different sizes.
Needle Felt Filter Bag is economical, widely used in membrane pre-filtration, amine filtration and electrolytic solutions and syrups.

Product features:

Tight structure without surface felt shedding;

Hot-melting seamless joint technology ensures no side leakage or chemicals exudation;

Suitable for fluid with low or medium viscosity to effectively intercept various solids and soft particles under high flow rate;

No.1, 2, 3 or 4 bag is selectable according to customer’s actual operating environment;

High-temperature resistant polyaramide or PTFE is selectable according to customer’s actual operating environment;

Plastic pressure-sensitive sealing ring with good sealing performance or economical but durable stainless steel or carbon steel ring is selectable according to customer’s actual operating environment;

Non-standard design is available according to customer’s actual operating environment.

Application examples:

Prefiltering before membrane

Industrial circulating water filtration

Amine fluid filtration

Drug substance filtration

Electrophoretic paint/plating solution filtration

Lubricant filtration

Syrup filtration

Powder filtration

Resin/solvent filtration