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OVI

OSI

OGI

OVE

OSE

OGE

Metal O-Ring for Internal Pressure

Metal O-Ring for External Pressure

Non-vented rings (OI & OE) are designed for lower pressure ranges. The perfectly closed O Ring design avoids ingress of the media into the seal. Moderate load, Moderate pressure capability.
Internally (OVI) or externally (OVE) vented O Rings are designed for higher pressure. Besides the own seating load the seal is also energised by the system pressure.
Spring-energised metal O Ring for Internal pressure (OSI) and (OSE) for external pressure are designed for extreme low leakage at moderate pressures.
Gas filled metal O Ring for high temperature and moderate pressure applications. OGI for internal pressure and OGE for external pressure.

Metal C-Ring for Internal Pressure

Metal C-Ring for External Pressure

Metal C-Ring for Internal Pressure (CI) and External Pressure (CE) are designed for high pressure (system pressure energised). They require low bolting load and have good spring back.

CSI

CSE

Spring Energised C-Ring for Internal Pressure

Spring Energised C-Ring for External Pressure

Metal CS-Ring for Internal Pressure (CSI) and External Pressure (CSE) are designed for high pressure and excellent tightness performance (system pressure energised). They require high bolting load and have good spring back.

Oysterseal, Metal V Ring for Internal Pressure

Oysterseal, Metal V Ring for External Pressure

The Oysterseal® is designed for maximum spring back, and as a consequence is a low load seal. Because of the low load it will only obtain a good tightness with very soft plating or coatings.

Metal C Ring for Axial Pressure

The radial C Ring for axial pressure is designed to seal shaft to bore. Close tolerances on both shaft and bore are required.

COI

COE

Metal Commaseal for Axial Pressure and ID Dynamic

Metal Commaseal for Axial Pressure and OD Dynamic

Commaseals® are designed for slow dynamic applications on ID or OD.

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Resilient metal seals from High Tech Metal Seals NV are used in the most extreme environmental conditions. Spring Energised Metal C Rings are used under extreme conditions where temperature can range from cryogenic up to extreme high temperatures, such as 800°C.
To serve the harsh conditions in today’s Oil and Gas exploration, High Tech Metal Seals NV designs and manufactures resilient metals seals which comply and exceed the ISO 15848 leakage requirements for valves intended for application with volatile air pollutants and hazardous fluids. High Tech Metals Seals are manufactured from high alloy materials so that the finished product complies with NACE MR0175 requirements. Silver plated Metal O rings or Metal C Rings, because of ductile layer are successfully used in high vacuum applications. Silver plated or PTFE coated spring energised C Rings and Metal C Rings comply and exceed the ISO 15848 leakage requirements, from cryogenic temperatures up to extreme high temperatures and pressures. In nuclear applications, particle research, and other radiation application, typically high load resilient metal seals, such as spring energized metal C Rings or Metal O Rings, with a ductile layer of silver are successfully used. High Tech Metal Seals NV, seals for extreme environmental conditions are particularly suited for high pressure. The system pressure assist in maintaining intimate contact with the mating flanges.