PTFE filter bag SEFAR® PHARMA GMP

stainless steelpolyestermembrane

Overview
Sefar GMP-certified filter bags ensure contamination control, compliance, and increased yield in pharmaceutical powder handling processes such as fluid bed drying, spray drying, and micronization.

Certified Filter Bags for Full GMP Compliance
Certified filter bags designed and manufactured according to GMP guidelines (FDA/EU standards) in clean, controlled environments to enable safe, compliant powder handling and high product recovery.

Key Benefits

• Maximize Yield: Achieve maximum product recovery with filter bags engineered for clean handling and contamination control.
• Ensure Safety: Enable safe powder processing in explosive environments with ATEX-compliant antistatic filter bags.

Safety Built into Every Filter Bag
SEFAR® PHARMA GMP bags are developed in collaboration with leading pharmaceutical manufacturers to meet the strict demands of pharmaceutical powder processing. They are tailor-made for equipment including spray dryers, fluid bed dryers, micronizers, Nutsche filters and related equipment. Features include particle-tight seams, antistatic materials, and safe edge designs to offer maximum product protection, recovery, compliance, and efficient operation.

Product Technology
SEFAR® PHARMA GMP Bags combine a SEFAR® TETEX NF PHARMA needlefelt with a high-performance ePTFE membrane to provide reliable performance with high particle retention. All product components are GMP compliant.

• High-Quality Needlefelt
  High-quality SEFAR® TETEX NF PHARMA needlefelt (PET or PTFE) provides mechanical strength and reliable filtration performance.
• High-Performance ePTFE Membrane
  The integrated ePTFE membrane ensures excellent particle retention, low pressure drop, and minimal fiber shedding for clean, compliant product recovery.
• Conductive Stainless-Steel Matrix
  A built-in stainless-steel matrix enables safe dissipation of electrostatic charges, supporting ATEX compliance in explosive powder handling environments.
• PET or PTFE Scrim
  A durable PET or PTFE scrim reinforces the bag structure, providing dimensional stability and mechanical strength for consistent, long-term use.
• Equipment compatibility
  Compatible with equipment from leading manufacturers (examples listed on product page), and designed to fit spray dryers, fluid bed dryers, micronizers, Nutsche filters and similar machinery.

Made to Perform

• Edge Protection
  High-performance folded edge design prevents product contact with needlefelt fibers, minimizing contamination risk.
• Bottom Disc Design
  Engineered bottom disc prevents needlefelt fibers from being pulled through to the product side, ensuring safe powder containment during handling and discharge.
• Top Connections
  Tailor-made top connections (snap rings, steel rings, and other formats) enable secure, trouble-free installation across major equipment.
• Custom Design
  Bags are designed to customer specifications — geometry and construction can be tailored to match equipment design precisely.
• Packaging and Labeling
  Each bag is individually packed and custom labeled to ensure hygienic handling, full traceability, and compliance with pharmaceutical documentation standards.

Manufacturing, Quality and Regulatory Support
SEFAR controls every step of production from raw materials to final product, enabling vertical integration and consistent quality. Products are manufactured in cleanroom environments (GMP Class D / ISO Class 7), individually packaged and sealed to avoid contamination, and include clear identification for full traceability. Dedicated quality assurance testing covers extractables, migration, and mechanical performance. Full documentation supports audits and compliance with GMP, FDA and EU regulations.

Applications

• Fluid bed drying
• Spray drying
• Micronization
• Nutsche filters and related powder-handling equipment

Downloads
Product-related PDFs and brochures are offered in the Downloads section on the product page.

Caractéristiques / spécifications techniques

• Product family: SEFAR® PHARMA GMP bags
• Filter media: SEFAR® TETEX NF PHARMA needlefelt (PET or PTFE)
• Membrane: integrated high-performance ePTFE membrane
• Anti-static capability: conductive stainless-steel matrix to allow electrostatic dissipation (supports ATEX compliance)
• Reinforcement: PET or PTFE scrim for dimensional stability
• Edge design: folded edge protection to avoid fiber contact with product
• Bottom design: engineered bottom disc to prevent fiber migration to product side
• Top connections: multiple tailor-made formats (snap rings, steel rings, others)
• Packaging: individually packed and custom labeled for hygienic handling and traceability
• Manufacturing environment: cleanroom manufacturing (GMP Class D / ISO Class 7)
• Quality testing: extractables, migration, mechanical performance testing and full documentation for regulatory support
• Typical equipment compatibility: spray dryers, fluid bed dryers, micronizers, Nutsche filters