Delivering Fluid Sealing Solutions Since 1972

Hygienic Clamp Seals

Hygienic Clamp Seals – Full Documentation & Certificates Provided

M Barnwell Services is one of the UK’s leading stockist, distributor, and manufacturer of Hygienic Clamp Seals and FDA / Hygienic elastomers.

Our range of Hygienic Clamp Seals can suit many international sanitary requirements and approvals including FDAEC1935/2004 & EC2023/2006USP Class VI, and 3A 18-03 Sanitary Standards. For help on sizing please view the Tri-clamp Sizing Guide.

HyClamp™ Sanitary Gasket seals, Tri-clover® seals, and Tri-clamp® seals are Trade / Brand names of Hygienic Clamp Seals. They are manufactured to satisfy the needs of pipe couplings in food, beverage, and pharmaceutical operation lines. Hygienic Clamp Seal elastomer materials are also free from Animal-Derived Ingredients (ADI-free).

M Barnwell Services range offers excellent chemical resistance to meet the demands of aseptic conditions, CIP (Clean-In-Place) and SIP (Steam-In-Place) operations. They ensure remarkable long-term sealing endurance, prolonging scheduled maintenance intervals and reducing downtime.

In accordance with current Good Manufacturing Practice (GMP) the seals are engineered to a number of ‘clamp size norms’. The entire manufacturing batch is traceable and is accompanied by certificates of conformity.

For an overview of our range of FDA, Hygienic Seals click here.

Hygienic Clamp Seals Hygienic Clamp Seals & Coupling

Features of Hygienic Clamp Seals elastomer gaskets:

  • Are ADI-free (free from Animal-Derived Ingredients)
  • Are compliant with: FDAEC1935/2004 & EC2023/2006USP Class VI, 3A 18-03 Sanitary Standards
  • Provide eminent long-term sealing performance
  • Manufactured to BS4825-3:2009, ISO2852, ASME BPE and DIN32676 A, B and C standard sizes
  • Present excellent thermal and chemical resistance
  • Have full manufacturing batch traceability
  • Promote tooling with non-wetted part lines to avert the build-up of bacteria
  • Provide certificates of conformity available

Hygienic Clamp Seal Materials

EPDM Hygienic Seal Gaskets

EPDM Hygienic seals provide excellent resistance to weathering, ageing and ozone. Known for their durability, temperatures range from -40°C to +150°C. Available in Blue and Black and X-Ray and Metal Detectable.

Viton® / Fluoroelastomer FKM Hygienic Seal Gaskets

FKM Hygienic seals offer high resistance to temperature water and protection against abrasive solvents and chemicals used for SIP and CIP cleaning system applications.

Temperatures range from -10°C to +200°C. X-Ray and Metal Detectable hygienic seals are available. Colours include Blue and White.

X-Ray and Metal Detectable Hygienic Seal Gaskets

X-Ray and Metal Detectable seals is a scope of metal detectable elastomer compounds created particularly to meet the most rigorous requirements of the pharmaceutical and food processing industries. The hygienic seals have been tested and proven for use at leading pharmaceutical producing units.

Temperatures range from -60°C to +200°C. X-Ray and Metal Detectable hygienic seals are available in FKM, EPDM and Silicone (VQM).

Perfluoroelastomer FFKM Hygienic Seal Gaskets / FFKM Tri Clamps

Perfluoroelastomer (FFKM) hygienic seal gaskets are entirely fluorinated, created to conquer particular sealing challenges in the food, dairy, pharmaceutical, biomedical and life-science industries. The supreme Perfluoroelastomer (FFKM) is perfect for SIP and CIP cleaning systems. Perfluoroelastomer (FFKM) hygienic gaskets are created for sealing applications in which chemical resistance and high-temperature performance are crucial, consequently, they can resist solvents, amines, and steam.

The exceptional cross-linking configuration adopted in all Perfluoroelastomer (FFKM) hygienic gasket grades guarantees compatibility with almost all chemicals. The molecular formation of Perfluoroelastomer (FFKM) is very similar to PTFE, ensuring eminent thermal durability and chemical resistance. This allows users to rationalize onto a single material grade throughout all applications.

Temperatures range from -15°C to +260°C.

Silicone VMQ Hygienic Seal Gaskets

Silicone VMQ hygienic seal gaskets offer all the versatility and resilience of silicone and comply with the major pharmaceutical and food processing standards. These translucent seals offer a temperature range of -60°C to +200°C.

The Silicone VMQ hygienic seal is also available in X-Ray and Metal Detectable.

Seals and gaskets to fit IDF Gaskets, RJT Seals and DIN11851 are also available from M Barnwell Services.

E & OE.


We provide a range of seals that are engineered to a number of 'clamp size norms'. Ask for details


Perfluoroelastomer (FFKM), Nitrile (NBR), Hydrogenated Nitrile (HNBR), Viton® (FKM/FPM), Ethylene Propylene (EPDM), Silicone (VMQ) and Metal & X-Ray Detectable


FDA, European Regulations EC1935/2004 & EC2023/2006, USP Class VI, and 3A 18-03 Sanitary Standards - Full documentation provided


HyClamp™ Sanitary Gasket seals, Tri-clover® seals, and Tri-clamp® seals