Hollow O-Rings at NewDealSeals

Hollow O-Rings, also known as Hollow Core O-Rings, represent an innovative advancement in sealing technology. These specialized sealing components offer distinct advantages in various industries and applications. In this SEO-text, we will explore what Hollow O-Rings are, their unique characteristics, and the key benefits they bring to sealing solutions.

What Are Hollow O-Rings?

Hollow O-Rings are sealing elements designed with a unique cross-sectional structure that features a hollow core. This distinguishing feature sets them apart from traditional solid O-rings. While both serve the same primary purpose of sealing gaps and preventing leakage, Hollow O-Rings offer specific advantages due to their design.

How do Hollow O-Rings work?

O-Ring cords operate on the same fundamental principles as traditional O-rings. They are elastic components strategically placed between two parts and then compressed to bridge the gap between them. When subjected to pressure, these rings undergo a controlled deformation, effectively “flowing” within the groove to eliminate any clearance gap. This action creates a secure seal that prevents the escape of the sealed substance.

 

Advantages of Hollow O-Rings:

  • Low Closing Force: One of the standout advantages of Hollow O-Rings is their ability to achieve a secure seal with minimal closing force. This feature is particularly valuable in applications where applying excessive pressure is undesirable.
  • Customizable Sizes: Hollow O-Rings are easy to manufacture in large sizes with inner diameters exceeding 1000 mm. This versatility allows engineers and manufacturers to tailor the sealing solution to the precise dimensions of their application.
  • Ideal for Static Sealing: These O-Rings are well-suited for static sealing applications, making them an excellent choice for sealing lids, doors, and other stationary components.
  • Adaptable to Rough Surfaces: Hollow O-Rings can effectively seal components with rough or uneven surface finishes, further expanding their range of applications.

Suitable Applications for Hollow O-Rings:

  • Low-Pressure Static Applications
  • Applications Requiring Low Closing Force
  • Rough Surface Finishes

What Hollow O-Rings Are Not Suitable For:

  • High-Pressure Applications
  • Dynamic Applications

Technical Specifications

Movement type

Static

Available sizes

Any size available upon request.

Temperature range

NBR:      -40° to +108° C

EPDM:   -55° to +155° C

FKM:      -25° to +204° C

Available materials

NBR, EPDM, FKM, CR, FVMQ, HNBR, FFKM, PU, VMQ

Available compliances

KTW, USP, NSF 51 61, WRC, WRAS, FDA, R67 01

Available standards

AS 568A, DIN 3701, BS 1806/ BS 4518, JIS B2401, JIS NFT47-501, SMS 1568 en ISO 3601.

Hollow O-Ring Types

Type Nitrile (NBR)

NBR hollow O-rings can be used in static applications where low closing force is required. Nitrile has a good general oil/fuel resistance, but poor ozone and weathering resistance.  

Type Silicone (VMQ)

Silicone hollow O-rings can be used in static applications where low closing force is required. VMQ has a good heat resistance up to 232°C in hot air and up to 100°C in water. It offers excellent resistance to ozone and weathering.

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NewDealSeals B.V.

+31 (0) 226 362 233

info@newdealseals.com

Boezemschop 8, Breekland, 1724 BJ Oudkarspel, The Netherlands