There are two separate design types within the one piece Ultra-Seal range, depending upon valve

• One piece reduced bore body, flanged construction in carbon steel, stainless steel and special alloys.

• Compact body design with minimum weight and elimination of potential leak path.

• Designed in accordance with ASME B16.34, BS EN ISO 17292 and ISO 14313/.

• Floating ball design for bi-directional shut-off.

• Flexing soft seat design for superior shut-off across a range of pressures with minimum operating torque.

• Low temperature and cryogenic designs for service down to -196°C available on request.

• Spring energized metal and carbon seat designs permitting tight shut-off and positive cavity pressure relief.

• Fused hard nickel alloy, chromium carbide or tungsten carbide coated seat and ball designs for abrasive and high temperature service.

• Hard carbon seat design for medium temperature applications.

• High integrity shaft seal minimizing the potential for atmospheric leakage.

• Fugitive emission performance to BS EN ISO 15848-2 class A.

• Corrosion resistant trim. Standard valves incorporate balls and shafts of stainless steel for long service life.

• Fire test certified. All sizes and pressure ratings are covered by approved certification.

• Anti-static and blow-out proof shaft design.

• Most designs offer cavity pressure relief to upstream in event of thermal expansion.

• Could be integrated into a SIL 3 environment safety instrumented system.