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  • Oetiker| Single Ear Hose Clamps | W4 304 Stainless Steel | With Inner Ring (Insert) 2.5mm - 2.9mm (0.10-0.11in) - HCL Fasteners EU - Image 1
  • Oetiker| Single Ear Hose Clamps | W4 304 Stainless Steel | With Inner Ring (Insert) 2.5mm - 2.9mm (0.10-0.11in) - HCL Fasteners EU - Image 2
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Oetiker| Single Ear Hose Clamps | W4 304 Stainless Steel | With Inner Ring (Insert)

Oetiker| Single Ear Hose Clamps | W4 304 Stainless Steel | With Inner Ring (Insert)

OET-SECIR-154-W4-2.5

417 Ft
417 Ft
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50 in stock
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Clamp Dia mm ?

Clamp Dia mm: The required metric size for a secure fit, indicating the outer diameter (in mm) of the component the clamp is meant to hold.
Clamp Dia In ?

Clamp Dia In: The minimum to maximum inner diameter (in.) the clamp can securely cover, defining its usable size range.
MFG P/N ?

MFG P/N: The unique identifying number assigned to a part by its manufacturer.
HCL P/N ?

HCL/ PN: The unique identifying number assigned to a part by HCL
Corrosion Res ?

Corrosion Resistance: Refers to a material's ability to resist deterioration or damage caused by chemical reactions with its environment, such as rusting.
Price (ex VAT) ?

Price: The cost per unit

Stock ?

Stock: available products that can be purchased

Order Qty ?

Order Quantity: The total amount of units you wish to order

2.5mm - 2.9mm - 0.10in - 0.11in - 15400010 - OET-SECIR-154-W4-2.5 - Very Good - 417 Ft 50
2.7mm - 3.1mm - 0.11in - 0.12in - 15400011 - OET-SECIR-154-W4-2.7 - Very Good - 420 Ft 50
2.9mm - 3.7mm - 0.11in - 0.15in - 15400012 - OET-SECIR-154-W4-2.9 - Very Good - 428 Ft 50
3.4mm - 4.2mm - 0.13in - 0.17in - 15400063 - OET-SECIR-154-W4-3.4 - Very Good - 435 Ft 50
3.7mm - 4.7mm - 0.15in - 0.19in - 15400013 - OET-SECIR-154-W4-3.7 - Very Good - 391 Ft 50
4.2mm - 5.2mm - 0.17in - 0.21in - 15400064 - OET-SECIR-154-W4-4.2 - Very Good - 391 Ft 50
4.7mm - 5.7mm - 0.15in - 0.22in - 15400014 - OET-SECIR-154-W4-4.7 - Very Good - 316 Ft 50
5.2mm - 6.2mm - 0.17in - 0.24in - 15400015 - OET-SECIR-154-W4-5.2 - Very Good - 320 Ft 50
5.6mm - 6.5mm - 0.22in - 0.26in - 15400016 - OET-SECIR-154-W4-5.6 - Very Good - 327 Ft 50
5.9mm - 7.0mm - 0.23in - 0.28in - 15400017 - OET-SECIR-154-W4-5.9 - Very Good - 331 Ft 50
6.3mm - 7.5mm - 0.25in - 0.30in - 15400018 - OET-SECIR-154-W4-6.3 - Very Good - 342 Ft 50
6.6mm - 7.8mm - 0.26in - 0.31in - 15400019 - OET-SECIR-154-W4-6.6 - Very Good - 346 Ft 50
7.0mm - 8.2mm - 0.28in - 0.32in - 15400020 - OET-SECIR-154-W4-7.0 - Very Good - 350 Ft 50

Description

This type of clamp combines the geometry and properties of the 1-Ear Clamp with an insert made of stainless steel. These clamps are ideal for demanding applications involving soft 
or hard rubbers and plastics. The thin-walled insert ring (up to 0.3 mm thick), with an oval protrusion that locates in the ear space, bridges the ear gap and ensures almost uniform compression around the whole circumference of a clamp.

Compact one-piece clamp: for robust, secure connections, miniature sizes 
Clamp ear: fast and simple installation, visible deformation provides evidence of proper closure
Deburred edges: reduced risk of damage to parts being clamped
Pre-shaped insert: effective and powerful all-round s

Product Specification Sheet

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Specification

Manufactured By Oetiker
HCL P/N OET-SECIR-154-W4-X
Series Single Ear with Inner Ring
Corrosion Resistance Very Good
Corrosion Specification 800 hours Corrosion resistance according to DIN EN ISO 9227
Band Material W4 304 Stainless Steel
Finish Stainless Steel
Colour Silver
Country of Manufacture Germany
Tariff Code 7326 90 92
Hazardous Goods No
RoHS Compliant Yes

Oetiker Single Ear Hose Clamps with an internal insert (inner ring) are engineered for applications where a permanent, 360° leak-proof seal is required on high-vibration or high-thermal-expansion connections. The inclusion of the inner ring provides a gap-free circumference, ensuring that the hose material is not pinched or damaged during the crimping process. Constructed from W4 304 grade stainless steel, these clamps offer excellent corrosion resistance, making them the preferred choice for critical fluid and air systems in automotive and industrial sectors.

Key Features of Oetiker Ear Clamps with Inserts:

  • W4 304 Stainless Steel Construction: High-grade austenitic stainless steel provides exceptional protection against rust and chemical degradation, ideal for harsh marine and automotive environments.
  • Integrated Inner Ring (Insert): The internal ring spans the gap of the "ear" during closure, providing a continuous 360° compression that eliminates "stepping" and prevents hose pinching.
  • Tamper-Proof Permanent Seal: Once crimped, these clamps provide a uniform, high-tension connection that cannot be loosened or backed off, ensuring safety in pressurized systems.
  • Dimpled Ear Design: The "ear" features a specialized dimple that increases the clamping force and creates a "spring" effect, allowing the clamp to maintain tension even during temperature fluctuations.
  • Smooth Profile with Burr-Free Edges: Precision-manufactured edges prevent damage to soft hoses, making them safe for use on silicone, rubber, and delicate thermoplastic tubing.

Perfect For:

  • Automotive Cooling and Fuel Systems: Specifically designed for permanent connections in engine bays where vibration and heat cycles are constant.
  • Beverage and Dispensing Equipment: Ideal for food-grade applications requiring a clean, low-profile, and corrosion-resistant fastener for fluid lines.
  • Medical and Laboratory Tubing: Providing a secure, uniform seal on high-performance tubing without the risk of contaminating or damaging the line.
  • Commercial Compressed Air Lines: Ensuring a leak-free joint for pneumatic systems where air loss can impact machinery efficiency.

Comprehensive Product Overview:

The Oetiker Single Ear Clamp with Inner Ring is the solution for engineers who require more than just a standard fastener. While traditional ear clamps leave a small gap under the ear, the insert in this model ensures that the radial force is applied evenly across the entire surface of the hose. This is particularly crucial when dealing with thin-walled hoses or materials that are prone to cold-flow or "creeping" over time. The one-piece design is low-profile and lightweight, making it perfect for modern assemblies where space is at a premium and weight reduction is a priority. Because the W4 material is non-magnetic and highly resistant to oxidation, these clamps maintain their structural integrity and appearance for the life of the component.

Secure your critical connections with Oetiker’s precision technology. Order your W4 304 Stainless Steel Single Ear Clamps with Inner Rings today for a permanent, 360-degree seal.