# LP1901-FB Coffee Valve With Filter > ## Features LP1901-FB is an enhanced mesh-type degassing valve upgraded for powder and granular products. Its key difference lies in the use of a thicker, higher-sealing membrane material compared to the FA version, significantly improving fine powder retention and leakage prevention.It effectively solves leakage issues commonly caused by powdered products, while maintaining the core functions of one way degassing, freshness preservation, and anti-swelling performance. It is a reliable upgraded solution for powder-based food and industrial powder packaging. ## Application Range Suitable for packaging gas-producing products such as coffee, pet food, and fermented feed. It can be installed on packaging bags and other containers to achieve one way degassing, block air ingress, and extend shelf life. (FB is suitable for filtering particles smaller than 100 mesh.) (Widely used in industries such as coffee powder, cocoa powder, flour, and powdered pesticides. It is specially designed for granular and powder packaging applications.) ## Specifications Model: LP1901-FB (with filter) Brand: LinkePackaging Material: HDPE Diameter: φ19.3mm±0.1mm Inner Diameter: φ16.9mm±0.1mm Height: 5.2mm±0.1 Weight: 0.77g±0.04 Sealing Pressure: 175°C-200°C (0.1 mm thick aluminum foil bag) Opening Pressure: 3-9mbar Net Weight: 7.7KG Gross Weight: 8.3KG Packaging: 10,000 PCS/CTN Carton Size: 480×270×180mm LP1901-FB are more suitable for powder products and are not recommended for use with cans or bottle caps.