High-Performance Bolted Bonnet Gate Valves: The Industrial Standard
The Bolted Bonnet Gate Valve is engineered for applications requiring absolute shutoff and long-term durability. Unlike threaded or union bonnets, the bolted joint uses high-tensile studs and a specialized gasket to create a pressure-tight seal between the valve body and the bonnet. This design is specifically built to handle the mechanical stresses of high-pressure and high-temperature services.
The FlowBiz Structural Advantage
FlowBiz valves are designed to meet ASME B16.34 standards, ensuring they can withstand the rigorous demands of modern refineries and power plants.
- Joint Tightness: The leakproof bolted body-bonnet joint is designed to maintain seal integrity under high bolting torque.
- Wedge Guiding: Our precision-machined guides minimize seat rubbing and scratching during operation, significantly extending the life of the seating surfaces.
- Stem Reliability: Features a non-rotating stem and the advanced Velan stem seal, offering a tight seal with minimal maintenance requirements.
- Hard-Faced Seating: Seating faces are hard-faced (e.g., Stellite) to fight erosion and high-velocity wear.
Technical Specifications & Features
FlowBiz Bolted Bonnet Gate Valves are available in a wide array of configurations:
Feature | Technical Benefit |
Material Grades | Carbon Steel, Stainless Steel, Cast/Forged Steel, Nickel Alloys |
Gasket Types | Sheet gaskets (Lower Pressure) & Metallic Ring Gaskets (Higher Pressure) |
Design Standard | ASME B16.34 / API 600 / API 602 |
Sealing Options | Live-loaded packing and optional leak-off ports |
Wedge Type | Flexible wedge for improved sealing at high temperatures |
Core Industrial Applications
FlowBiz Bolted Bonnet valves are installed worldwide in sectors where failure is not an option:
- Oil & Gas: Onshore and offshore drilling, refining, and transport.
- Petrochemicals: Catalytic reformers and hydrocrackers.
- Power Plants: High-pressure steam and feedwater isolation.
- Chemical Processing: Critical isolation of corrosive and hazardous fluids.
Why Choose FlowBiz Exports?
FlowBiz Exports Pvt Ltd is an expert in delivering customized valves that meet the unique needs of global clients. Whether you require a seal-weld provision for hazardous service or live-loading for zero-emission compliance, we deliver reliable performance every time.
Global Presence:
- India: Leading supplier in Mumbai, Pune, Ahmedabad, and Chennai.
- International: Trusted by major refineries in Dubai, Turkey, Africa, Thailand, and Vietnam.
Do you have a project requiring Class 1500# or specialized Nickel Alloy valves?
Contact the FlowBiz Exports Pvt Ltd technical team today. We provide full material traceability, hydrostatic test reports, and engineering support to ensure you get the right valve for your high-pressure application.