Pressure seal gate valve
Pressure Seal Gate Valve – Self-Energizing High Pressure Design for Class 900-2500 Service
Pressure Seal Gate Valves employ pressure-energized bonnet sealing where internal pressure forces the bonnet seal ring against the body, creating a tighter seal as pressure increases—eliminating bolted bonnet joint leak paths in extreme pressure applications. This self-sealing mechanism is standard for Class 900, 1500, and 2500 services across African offshore platforms, high-pressure steam systems, and deepwater subsea installations.
From Nigerian offshore production manifolds to South African supercritical power plants, pressure seal gate valves serve DN 50 to DN 600 (2″ to 24″) high-pressure applications in Class 900, 1500, 2500 ratings. The design reduces overall valve weight by 30-40% compared to bolted bonnet equivalents while eliminating numerous bonnet bolts—critical advantages for African offshore installations where topside weight directly impacts platform costs and maintenance complexity. Our Gate Valve category covers general isolation principles.
Key Features & Benefits
Self-energizing seal
Reduced weight
Fewer bolts
Size Range: DN 50 to DN 600 (2" to 24")
Pressure Class: Class 900, 1500, 2500
API 600/API 6D Certified
Global Applications
Topside isolation, subsea production manifolds, and export risers on African offshore oil & gas platforms where reduced weight directly impacts installation costs and platform capacity. Pressure seal design reduces valve weight by 30-40% versus bolted bonnet equivalents.
Boiler feed, main steam, and reheat steam service in thermal power plants and industrial steam systems requiring compact high-pressure isolation to 538°C and Class 2500 ratings.
Subsea production systems, Christmas trees, and flowline isolation in West African deepwater oil & gas developments requiring compact, lightweight, high-pressure isolation with DNV type approval.
Products
Browse our selection of pressure seal gate valve