SOSHH® PU-10 Clear Polyether TPU Snap-In Flexible Connector | Food Grade

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FDA 21 CFR 177.2600 compliant clear polyether TPU sleeve. Shore A 90, 40 MPa, +0.35 bar / -50 mbar. Standard Ø102–804 mm × 100–1000 mm. Tool-free 60-second snap-in.

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SF Snap-In Flexible Connectors

Description

The PU-10 is a 1.0 mm transparent polyether TPU snap-in flexible connector sleeve for powder and bulk solids handling. It uses a single homogeneous wall with a polymer snap-band cuff, providing +0.35 bar / −50 mbar pressure-vacuum rating, Shore A 90 hardness, and 40 MPa tensile strength. The TPU wall is FDA 21 CFR 177.2600 compliant (Report TQT4821B36E) and installs tool-free in under 30 seconds per end.

Why Engineers Specify PU-10

Zero tooling fee — custom diameters and lengths fabricated to the exact millimeter
24-hour verification — watermarked 2D drawing emailed within one working day
FDA migration tested — independent report TQT4821B36E, not a supplier self-declaration
100% metal-free bore — polymer snap-band cuff, safe for metal detectors

SOSHH PU-10 clear polyether TPU snap-in flexible connector, 1.0mm wall, FDA 21 CFR 177.2600 food grade for bulk powder transfer

1. Locked Engineering Specifications

Property	SSOT Verified Value	Standard / Engineering Note
Base Material	100% Virgin Polyether TPU	Single homogeneous wall, zero plasticizers
Wall Thickness	1.0 mm	Optimal balance of flex-fatigue and wear
Appearance	Clear / Transparent	Allows 100% visual inspection of powder flow
Hardness	Shore A 90	High elasticity, resists deformation
Tensile Strength	40 MPa	Withstands dynamic pressure surges
Elongation at Break	600%	Absorbs continuous multi-axis sifter vibration
DIN Abrasion Loss	39.0 mg	Superior wear endurance over rubber/silicone
Continuous Temp	−20 °C to +110 °C	Withstands warm powder and process washdown
Positive Pressure	+0.35 bar (+5.0 psi)	100% dust-tight snap-in containment
Vacuum Rating	−50 mbar (−0.7 psi)	Standard conveying duty (deeper vacuum: PU-10-VR)
Surface Resistivity	> 10¹² Ω (Standard)	For static dissipative (< 10⁹ Ω), specify PU-10-AS
Food Compliance	FDA 21 CFR 177.2600	Independent migration test (Report: TQT4821B36E)

2. Standard Part Number System (PU10-ØD-CL)

Specify your exact replacement sleeve using our standardized ordering code:

PU10 - [Diameter ØD] - [Length CL]

PU10: 1.0 mm clear polyether TPU
ØD: Seating diameter in mm (20 standard sizes)
CL: Installed face-to-face length in mm (100 to 1000 mm)

Example: PU10-204-300 defines a Ø204 mm diameter connector with a 300 mm installed length.

20 Standard Diameters (ØD)

Small / Filling (4" to 8"): Ø102 mm · Ø152 mm · Ø159 mm · Ø204 mm
Medium / Screeners (8" to 14"): Ø219 mm · Ø254 mm · Ø273 mm · Ø304 mm · Ø325 mm · Ø354 mm
Large / Hoppers & Silos (15" to 32"): Ø377 mm · Ø404 mm · Ø454 mm · Ø504 mm · Ø554 mm · Ø604 mm · Ø654 mm · Ø704 mm · Ø754 mm · Ø804 mm

19 Standard Lengths (CL)

100 · 150 · 200 · 250 · 300 · 350 · 400 · 450 · 500 · 550 · 600 · 650 · 700 · 750 · 800 · 850 · 900 · 950 · 1000 mm

(20 Diameters × 19 Lengths = 380 standard combinations. Custom lengths and transitions are CNC-cut to the exact millimeter with zero tooling fees.)

3. Frequently Asked Questions (FAQ)

Q1: What is the maximum operating pressure for PU-10?

PU-10 handles up to +0.35 bar (+5.0 psi) positive pressure and down to −50 mbar (−0.7 psi) negative pressure. For deep vacuum lines, specify our polymer-ring reinforced PU-10-VR sleeve (rated to −1000 mbar).

Q2: Is PU-10 certified for direct food contact?

Yes. It complies with US FDA 21 CFR 177.2600 under independent laboratory test report TQT4821B36E, is 100% phthalate-free, and meets European Regulation (EU) No 10/2011 migration standards.

Q3: Will this connector trigger inline metal detectors?

No. The spring-steel locking band is housed inside high-frequency welded exterior cuffs, entirely outside the product flow path. The contact bore is 100% metal-free.

Q4: How is PU-10 cleaned?

It is fully suitable for standard washdown and warm water CIP. For aggressive daily caustic CIP washdowns at 80–85 °C, we recommend our specialized PUCR10 chemical-grade sleeve.

Q5: How do I choose between PU-10 and PU-15?

PU-10 (1.0 mm) is the standard choice for 85% of powder screening and chute connections. PU-15 (1.5 mm) is specified when handling sharp, heavy, or abrasive materials (such as raw minerals, sugar crystals, or dried pet food kibble).

4. Request a 2D Drawing & Fast Quotation

To verify sizing and receive a dimensioned 2D engineering drawing within 24 hours, email the following five parameters directly to our engineering desk:

[ ] Spigot Seating OD: Diameter of your rigid metal groove (mm)
[ ] Installation Gap (IG): Face-to-face distance at rest (mm)
[ ] Process Material: Type of powder or granular bulk media
[ ] Operating Temperature: Continuous running and washdown temp (°C)
[ ] System Pressure: Working positive pressure or vacuum level (bar/mbar)

Q1: What is the maximum operating pressure for PU-10?

PU-10 handles up to +0.35 bar (+5.0 psi) positive pressure and down to −50 mbar (−0.7 psi) negative pressure. For full vacuum to −1000 mbar, specify the PU-10-VR vacuum-reinforced sleeve.

Q2: Is PU-10 certified for direct food contact?

Yes. It complies with US FDA 21 CFR 177.2600 under independent test report TQT4821B36E, is 100% phthalate-free, and meets European Regulation (EU) No 10/2011 migration standards.

Q3: Will PU-10 trigger inline metal detectors?

No. PU-10 contains no metal — no wire, no spring, no metallic ring. The snap-in retention is a polymer cuff, so the contact bore is 100% metal-free.

Q4: How is PU-10 cleaned?

It is suitable for standard washdown and warm-water CIP. For frequent hot-caustic CIP washdown at 110°C, specify the PU-15-CIP grade, formulated for hydrolysis resistance.

Q5: How do I choose between PU-10 and PU-15?

PU-10 (1.0 mm) is the standard choice for general powder and chute connections. PU-15 (1.5 mm) is specified for sharp, heavy, or abrasive materials such as raw minerals, sugar crystals, and dried pet food kibble.

Why Engineers Specify PU-10

Zero tooling fee — custom diameters and lengths fabricated to the exact millimeter
24-hour verification — watermarked 2D drawing emailed within one working day
FDA migration tested — independent report TQT4821B36E, not a supplier self-declaration
100% metal-free bore — polymer snap-band cuff, safe for metal detectors

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