Using high strength alloy clamps and flush bore seal rings, minimum fluid seals areas and low make up loads are achieved allowing smaller and more compact units than flanges of equivalent pressure ratings.
Resistance to Pressure and Thermal Shock
Cold quench conditions and thermal cycling are the cause of most leakage problems, where conventional compressible type joints and seal materials are used. The flexibility of the seal ring compensates for this during thermal transient conditions.
High Pressure Containment
The higher the pressure, the more effective the G-Range connection becomes, as internal pressure intensifies the seal.
Extreme Leak Tightness
The seals remain leak tight under the most arduous conditions of pressure, temperature and vacuum conditions, even after many thousand hours of operation.
Destec G-Range connections are supplied in these standard materials. Destec Seal Rings are supplied coated with either PTFE, Molybdenum Disulphide or Graphite, depending on the application. Special G-Range connections are manufactured in many materials including Duplex steels and Nickel-based alloys.
Other materials can be used. Please contact firstname.lastname@example.org for further details.
|Carbon Steel / Carbon Manganese Steel
|Stainless Steel 316 type
|Duplex (22% Cr)
|Super Duplex (25% Cr)
|up to 300˚C
|INC 718 or 725
|INC 718 or 725
Re-Usable Seal Rings
The 'all-metal' seal ring is elastic in design, and, on dismantling, reverts to its original form, ready for re-use. All seals of given size are interchangeable without any pre-fitting.
Existing troublesome flange joints can usually be converted on site to incorporate the Destec seal ring, as can vessel and heat exchanger closures. Destec seal rings are currently in use up to 2m diameter (2000mm).