SOSHH High-Temp Anti-Static PTFE Snap-In Flexible Connector

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 Conductive Black PTFE Snap-In Flexible Connector for ATEX Dust ZonesSOSHH Conductive Black PTFE Snap-In Flexible Connector for ATEX Dust Zones

1. Why Choose SOSHH PTFE Snap-In Connectors? (Solving Critical Process Pain Points)

  • Permanent Anti-Static & ATEX Zone 0/20 Safety: Engineered with conductive black PTFE providing surface resistivity under 300,000 Ohms/sq. Safely dissipates electrostatic charges generated during high-velocity powder conveyance, preventing secondary dust explosions in explosive atmospheres.
  • Extreme Continuous Temperature (316 deg C / 600 deg F): Far outperforms standard TPU and silicone sleeves that melt, crack, or harden under high temperatures. Remains permanently flexible and dimensionally stable in fluid bed dryers, calcination exhausts, and spray dryers.
  • Universal Chemical Inertness (pH 0-14): High-density fluoropolymer structure is 100% unaffected by aggressive acids, alkalis, aromatic solvents, and corrosive chemical vapors. Zero swelling, zero chemical degradation.
  • 30-Second Tool-Free Snap-Band Installation: Internal stainless steel snap rings lock directly into standard grooved spigots. Eliminates messy hose clamps, stops flange gap powder leakage, and prevents cross-contamination.

2. Physical & Technical Specifications

Engineering PropertyTest StandardSpecification / Certified Value
Material ConstructionVisual / ASTMConductive Multilayer PTFE Composite Film
Material ColorVisualMatte Black
Film ThicknessASTM D36520.25 mm (+/- 0.05 mm)
Continuous Service TempInternal Thermal Test-70 deg C to +316 deg C (-94 deg F to +600 deg F)
Surface ResistivityResistance MeterUnder 300,000 Ohms/sq (Conductive / Anti-Static)
Tensile StrengthGB/T 1040.3350 N/50 mm (40 lbs/in)
Tear StrengthInternal Mechanical156 N (35 lbs)
Total Areal WeightBalance Test441 g/m2 (14.0 oz/yd2)
DensityASTM D7922.2 - 2.3 g/cm3
Water AbsorptionASTM D570Under 0.01%
Chemical ResistanceFull ImmersionpH 0-14 (Universal Chemical Resistance)
Connection MechanismSnap-In FitInternal tempered spring steel band (snap-fit into spigot groove)

3. Standard Dimensions & Sizing Matrix

Standard Diameter (Spigot Match)Standard LengthsCustomization Capability
Dia. 100 mm (4 in)100 mm / 150 mm / 200 mm / 300 mmCustom lengths up to 2000 mm
Dia. 125 mm (5 in)100 mm / 150 mm / 200 mm / 300 mmOptional internal vacuum rings
Dia. 150 mm (6 in)150 mm / 200 mm / 300 mm / 400 mmCustom conical reducers (offset)
Dia. 200 mm (8 in)150 mm / 200 mm / 300 mm / 500 mmDouble-layer high-flex design
Dia. 250 mm (10 in)200 mm / 300 mm / 500 mmCustom grounding lug integration
Dia. 300 mm (12 in)200 mm / 300 mm / 500 mmReinforcement for high negative pressure

(Note: Direct retrofits for existing BFM-style spigots and modular sanitary ducting systems.)

4. Engineering Compatibility & Retrofit Guide

  • Snap-on Connector Replacement: Direct drop-in fit for existing modular spigots and Jacob tubing lines without altering ductwork.
  • Alternative to BFM Fitting Systems: Delivers identical tool-free snap-in functionality for grooved spigot profiles with superior chemical inertness and higher temperature endurance.
  • Vibrating Sifter Powder Leakage Solution: Absorbs continuous multi-axis oscillation without ring dislocation, fatigue cracking, or seam blowout.
  • Bulk Powder Handling Sleeve: Prevents static build-up during high-velocity pneumatic conveying of toner, flour, milk powder, resins, and battery cathode/anode active materials.

5. Frequently Asked Questions

  • Q1: How does the conductive PTFE sleeve prevent ATEX dust explosions?
  • A: The composite film maintains a permanent surface resistivity under 300,000 Ohms/sq, instantly dissipating static charges to ground before hazardous spark discharges can ignite combustible dust in ATEX Zone 0/20 environments.
  • Q2: Can this flexible joint replace silicone sleeves in high-temperature drying processes?
  • A: Yes. While silicone hardens, discolors, or sheds particles above 200 deg C, our conductive black PTFE sleeve withstands continuous temperatures up to 316 deg C (600 deg F) in fluid bed dryers and spray drying cyclones without embrittlement.
  • Q3: Is the snap-in connector resistant to aggressive CIP chemicals and solvents?
  • A: Yes. Made from virgin multi-layer PTFE composite, it provides universal inertness across the entire pH 0-14 spectrum, remaining completely immune to acids, caustics, and organic cleaning solvents.

6. Request Custom Sizing & Technical Data Sheet

Looking for exact dimensional compatibility with your existing grooved spigots or need an ATEX static verification sheet? Contact our process engineers at amin@soshh.com with your duct diameter and operating temperature for a fast proposal and sample delivery.

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