Key Design & Functionality
- Operational Mechanism: The primary closure component is the gate (disc), which moves perpendicular to the flow of the fluid.
- On/Off Service: These valves are engineered exclusively for fully open or fully closed positions. They are not intended for flow adjustment or throttling, which ensures a longer service life by preventing seat erosion.
- Precision Sealing: The gate features two high-precision sealing faces with a standard 3° wedge angle, providing a superior, leak-proof seal under high pressure.
Disc Variations:
- Rigid Disc (Solid Wedge): The disc is manufactured as a single, solid unit. This design is valued for its simplicity and high structural strength in general applications.
- Elastic Ram (Flexible Wedge): This disc is engineered to allow for micro-deformation. This flexibility allows the wedge to seat more effectively, compensating for minor deviations in the sealing surface angle caused by thermal expansion or manufacturing tolerances.
Design Excellence & Standards
Our gate valves are engineered and manufactured to ensure maximum service life and operational dependability. Every unit features a full-ported design to minimize pressure drop and is built in strict accordance with international standards:
- API 600 & API 6D: American Petroleum Institute standards for heavy-duty industrial use.
- BS 1414 & BS EN 1984: Compliance with British and European engineering requirements.
- ASME B16.34: Performance and pressure-temperature ratings compliant with the American Society of Mechanical Engineers.
Comprehensive Range of Materials
We provide a versatile selection of materials to ensure compatibility with various media, temperatures, and pressures:
Body and Bonnet Materials
We offer nine standard grades of Carbon Steel, Low Alloy Steel, and Stainless Steel. For specialized environments, we can provide custom alloys tailored to your specific project requirements.
Trims and Seals
- Complete Trim Selection: A full range of trim materials is available to match any service condition, from water and oil to corrosive chemicals.
- Advanced Sealing: Optional packing and gasket materials are available to meet a full spectrum of temperature and pressure conditions.1. Principle of Operation