Engineered for differential pressure relief and dust-tight venting in powder handling systems, the SOSHH SF-Series Breathable Snap-In Connector replaces traditional clamped cloth sleeves. Featuring standard food-grade woven polyester with antistatic grid lines (BFM LM4 equivalent), high-air-permeability PP06, or heavy-duty PTFE-membrane needle felt (PE20), it snaps directly into grooved spigots in 30 seconds without tools. Certified to FDA 21 CFR 177.1630, it delivers continuous air venting (10-25 L/dm2/min) while containing ultra-fine powders in silos, sifters, and bulk bag filling lines.


| Media Grade | Material Base & Weave Structure | Thickness | Continuous Operating Temp | Air Permeability (@200Pa) | Surface Resistance | OEM Cross-Reference / Compatibility |
|---|---|---|---|---|---|---|
| SF-PE06-AS (Standard) | 100% Polyester Filament + Anti-Static Carbon Grid | 0.60 mm | -20 deg C to +130 deg C (Peak 150 deg C) | 10 - 25 L/dm2/min | 10^6 - 10^8 Ohms (ATEX Anti-Static) | Drop-in replacement for BFM LM4 |
| SF-PP06 | 100% Polypropylene (PP) Plain Weave Fabric | 0.60 mm | -20 deg C to +110 deg C | High Permeability | Over 10^12 Ohms (Insulative) | Acid/alkali resistant powder venting |
| SF-PE20 | Polyester Needle Felt + Micro-Porous PTFE Membrane | 2.00 mm | -20 deg C to +150 deg C | Controlled Micro-Permeability | Over 10^12 Ohms (Insulative) | High dust-load bin vents & abrasive fines |
| SF-PTFE | 100% Woven Pure PTFE Filament Fabric | 0.50 mm | -70 deg C to +260 deg C | 5 - 20 L/dm2/min | Universal Inertness (pH 0-14) | Drop-in replacement for BFM FM1 / Teflex |
| Technical Parameter | Test Standard | Engineering Value |
|---|---|---|
| Material Base | Polymer Analysis | 100% Food-Grade Virgin Polyester Filament (PET) |
| Weave Pattern | Visual / DIN | High-Density Plain Weave with Static Conductive Grid |
| Fabric Thickness | ISO 5084 | 0.55 mm - 0.70 mm (Nominal 0.60 mm) |
| Areal Fabric Weight | ISO 3801 | 350 - 420 g/m2 |
| Air Permeability | DIN EN ISO 9237 | 10 - 25 L/dm2/min (@200Pa) |
| Warp Tensile Strength | ISO 13934-1 | >= 1600 N / 5 cm |
| Weft Tensile Strength | ISO 13934-1 | >= 1300 N / 5 cm |
| Continuous Temp Range | Thermal Test | -20 deg C to +130 deg C (-4 deg F to +266 deg F) |
| Short-Term Peak Temp | Thermal Resistance | +150 deg C (+302 deg F) |
| Surface Resistance | ATEX Standard | 10^6 - 10^8 Ohms (Dissipative / Anti-Static) |
| Food Contact Compliance | US FDA / EU | FDA 21 CFR 177.1630 / EU 10/2011 Compliant |
| Sealing System | Snap-Band | Dual internal tempered spring steel rings |
| Matching Spigot Diameter (OD) | Standard Sleeve Lengths | Mechanical Customization |
|---|---|---|
| Dia. 100 mm (4 in) | 100 mm / 150 mm / 200 mm / 300 mm | Custom heights up to 1500 mm |
| Dia. 125 mm (5 in) | 100 mm / 150 mm / 200 mm / 300 mm | External anti-abrasion rings |
| Dia. 150 mm (6 in) | 150 mm / 200 mm / 300 mm / 400 mm | Conical transition cuffs (Offset) |
| Dia. 200 mm (8 in) | 150 mm / 200 mm / 300 mm / 500 mm | Integrated grounding wire tabs |
| Dia. 250 mm (10 in) | 200 mm / 300 mm / 500 mm | Reinforced seams for vibrating sifters |
| Dia. 300 mm (12 in) | 200 mm / 300 mm / 500 mm | External vacuum support rings |
| Dia. 350 mm (14 in) | 200 mm / 300 mm / 500 mm | High-temperature Kevlar stitching |
(Note: 100% geometrically compatible with standard grooved spigots and modular sanitary tubing lines.)
Need custom spigot diameter verification or a material test sample? Send your line specifications to our process team at amin@soshh.com for same-day technical consultation and expedited quote proposals.
*Disclaimer: BFM is a registered trademark of BFM Global Limited. SOSHH is an independent manufacturer of high-performance replacement sleeves and is not affiliated with, endorsed by, or sponsored by BFM Global Limited.
High-performance anti-static PTFE snap-in flexible connector engineered for ATEX dust explosion zones and high-temperature powder handling systems. Featuring a conductive black fluoropolymer film with continuous 316 deg C (600 deg F) thermal stability and surface resistivity under 300,000 Ohms/sq, this tool-free snap-band sleeve provides an airtight, zero-leakage seal for vibratory sifters, fluid bed dryers, and pneumatic conveying. Designed as a direct drop-in replacement for standard spigot grooves and modular sanitary ducting, it guarantees universal chemical resistance (pH 0-14) with zero cross-contamination.
SOSHH® Inflatable Snap-In Flexible Connectors provide 100% dust-tight pneumatic sealing for FIBC bulk bag filling, discharging, and toxic powder transfer. Engineered with FDA-compliant Ether TPU and integrated pneumatic air fittings, the inflatable bladder expands at 1–2 bar to lock container necks securely, preventing airborne dust escape. Installs tool-free in under 20 seconds into SOSHH® Sanitary Welded Spigots. Factory direct with zero tooling fees for custom diameters and stroke lengths.
SOSHH® Pure White Woven PTFE Snap-In Flexible Connectors combine 100% virgin fluoropolymer fabric with high dynamic flex fatigue resistance for extreme chemical environments (-200°C to +260°C). Specifically engineered for high-vibration screeners, fluid bed dryers, and corrosive powder handling lines, the ultra-flexible woven PTFE cloth eliminates flex fatigue cracking while maintaining universal pH 0–14 resistance. Seats tool-free in under 20 seconds into SOSHH® Sanitary Welded Spigots. FDA 21 CFR 177.1550 compliant. Factory direct with zero tooling fees for custom dimensions.
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Specifically engineered for Clean-In-Place (CIP) systems in the food and pharmaceutical industries. This premium transparent TPU connector is highly resistant to Nitric Acid and Sodium Hydroxide, preventing yellowing and degradation while maintaining a 100% tool-free airtight seal.
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FDA-compliant transparent TPU snap-in flexible sleeve for powder handling. Protects loss-in-weight scales with zero force transmission & precise 80mm spigot installation standards.
Engineered for aggressive chemical environments and high-precision loss-in-weight (LIW) feeding systems. Featuring 100% multi-pass sintered PTFE fabric for absolute chemical inertness, anti-sticking, and thermal stability (-60°C to 220°C). Our proprietary Snap-Fit design with wire-reinforced skeleton eliminates spring effects and weighing interference, even under -40Kpa vacuum conditions.