SF Internal Snap-On Flexible Connector | FDA PU Sleeves | ATEX Antistatic
Key Features
Sanitary Snap-In Performance: Completely pressure and vacuum resistant, optimized for airtight pneumatic powder processing systems.
Zero Dead Zones Design: The internal snap-on locking mechanism creates a completely flush inner wall with no ledge or gaps. Perfect for strict food and pharmaceutical hygiene protocols, eliminating material build-up and cross-contamination.Explosion Safety (ATEX Enviornment): Optional Anti-static TPU option with certified surface resistance less than 10^9 Ohm (< 10⁹ Ω), effectively neutralizing electrostatic hazards from explosive combustible dusts.Extreme Abrasion Resistance: Outlasts ordinary rubber sleeves, with high durability spanning a wide temperature range from -20°C up to +110°C (Specialized PTFE options available for -40°C to +300°C processes).Technical Specs
Material Composition: Food-Grade Virgin Polyurethane (PU/TPU) + Integrated Spring Steel Bands.
Regulatory Compliance: Fully compliant with FDA 21 CFR 177.2600 and EU 10/2011 food-grade contact standards.Thickness & Transparency: Standard 1.0mm (Most common heavy-duty lines) or 0.5mm ultra-flexible options (Optimized for Weighing & Re-weighing load cells).Tear & Tensile Strength: High-strength performance rated up to 40 MPa with 600% section elongation for optimal flexibility under constant mechanical oscillation.Standard Diameters (D): Available in standard sizes including DN102, DN152, DN204, DN254, DN304, up to DN804 (Fully customizable for standard Jacob tubing systems or non-standard spigots).Standard Lengths (CL): 100mm, 150mm, 200mm, 300mm, 500mm, up to 1000mm (Customized minimum starting at 80mm).![SF snap-in flexible connector structure diagram and standard dimensions table]()
SF Neika soft connection standard diameter and custom CL length table
Material Parameters
![Polyurethane flexible connectors in standard, anti-static, high-temperature, and fiber-reinforced materials]()
Materials Polyurethane Polyurethane High-temperature resistant polyurethane Anti-static polyurethane Fiber-reinforced polyurethane
| Applicable conditions | Most common materials | Weigh and Re-weigh | high temperature | Flammable and explosive powder | Positive or negative pressure conditions |
| pigment | transparent | transparent | transparent | transparent | white |
| thickness （mm） | 1.0 | 0.5 | 1.0 | 1.0 | 0.8 |
| abrasion （mg） | 39 . 0 | 39 . 0 | 35 . 0 | 39 . 0 | 39 . 0 |
| sheet resistance （Ω） | 12 >10 | 12 >10 | 12 >10 | < 10⁹ Ω | 12 >10 |
| temperature resistance （C） | -20 ~ 110 | -20 ~ 110 | -20 ~ 150 | -20 ~ 110 | -20 ~ 110 |
| ventilate | airtight | airtight | airtight | airtight | airtight |
| Tensile strength (MPa) | 40 | 10 | 40 | 15 | 300 |
| Section elongation (%) | 600% | 300% | 600% | 600% | 600% |
| For food contact | Food Grade | Food Grade | Food Grade | Food Grade | Food Grade |
| production engineering | hot melt | hot melt | hot melt | hot melt | hot melt |
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| material | Polyurethane with spiral steel wire | 100% polytetrafluoroethylene | 100% polytetrafluoroethylene | polypropylene fiber | Polyester needle felt coated with PT |
| Applicable conditions | High-vibration sifters & multi-axis movement | Corrosive acids, alkalis, solvents, high temperature | Corrosive acids, alkalis, solvents, high temperature | ventilate | ventilate |
| pigment | White translucent | white | black | white | white |
| thickness （mm） | 0.6 | 0 . 2 | 0 . 2 | 0.6 | 2 . 0 |
| abrasion （mg） | 35 . 0 | | | | |
| sheet resistance （Ω） | < 10⁹ Ω | 12 >10 | | 12 >10 | 12 >10 |
| temperature resistance （C） | -20°C to +110°C | -40°C ~+300°C | -40°C ~+300°C | -20°C ~ +130°C | -20°C ~ +150°C |
| ventilate | airtight | airtight | airtight | ventilate | ventilate |
| Tensile strength (MPa) | 40 | | | | |
| Section elongation (%) | 600% | 10% | 10% | | 10% |
| For food contact | Food Grade | Food Grade | Food Grade | Food Grade | Food Grade |
| production engineering | hot melt | hot melt | hot melt | sewing | sewing |
Typical Applications
Vibratory Sifter & Tumbler Screener Sleeves (Zero-dust transitions for high-frequency vibration equipment).
Bulk Bag & FIBC Filling/Emptying Stations (Handling hazardous or explosive powders safely).Weighing Hoppers & Load Cell Isolation (0.5mm high-flexibility sleeves with zero vertical force interference).Jacob Tubing Line Retrofits & Upgrades (Seamlessly compatible with existing industrial spigots).BFM Alternative: Internal superiority, faster delivery.
FAQ
- Food grade cert? Yes, full FDA compliant docs.
- Pneumatic suitable? Airtight/pressure rated.
- ATEX for explosions? <10⁹ Ω certified.
Why JingZheng?
- 10+ yrs, 1,000+ installs.
- Custom prototypes: 48 hrs.
- 99% on-time delivery.
Internal Snap-On Flexible Connectors, Sanitary PU Sleeves, Card-in Snap-On, ATEX Antistatic PU, Tool-Free Snap Connector, Zero Dead Zones, Pharmaceutical Grade Connections.
![Certified quality assurance: SGS, MA, ilac-MRA, and CNAS laboratory testing reports for sanitary flexible connectors]()
Certified Quality: Our products are fully tested and compliant with SGS, CNAS, ilac-MRA, and MA laboratory safety standards.
