Valve Components

Forged Flanged Valve Bonnet

This valve bonnet is forged from premium carbon steel and fully machined. It features a double-flange structure suitable for high-pressure gate and globe valves. The flange surfaces and bolt holes conform to ANSI standards, allowing easy installation and reliable sealing. The surface is treated with rust-preventive oil after machining.

Product Introduction

This forged valve bonnet connects the valve stem and body, forming a key pressure-bearing part of the valve. It is made from ASTM carbon steel forgings, ensuring high strength and durability. This type of carbon steel bonnet is widely used in industrial valve assemblies.

Technical Specifications & Product Features

Technical Specifications

- Material: A105 Carbon Steel Forging

- Structure: One-piece flanged bonnet

- Machining: CNC precision turning

- Flange Standard: ASME B16.5

- Surface Finish: Rust-preventive oil, optional galvanizing or coating

- Bolt Holes: Evenly spaced for pressure sealing

- Pressure Rating: Class 150 to 1500 available (based on thickness)

- Special austenitic stainless steels such as 316 304 stainless steel, 304L / 316Ti and 2205 duplex can be used, or customized according to customer requirements.

Product Features

- High strength and excellent pressure resistance

- Flat flange surface fits standard gaskets with no leakage

- Accurate machining ensures concentricity and tight sealing

- Applicable in steam, oil, gas, and water treatment systems

- Material traceability and compliance with pressure vessel standards

Application & Installation

Application Scenarios

Suitable for carbon steel high-pressure valves, widely used in petrochemical, oil & gas pipelines, power plants, and steam systems for OEM assembly or replacement.

Installation Instructions

The bonnet can be bolted to the valve body. Use RF or FF gaskets based on the working conditions. Clean flange faces and align bolt holes before assembly to ensure tight sealing.

Our Advantages

Sichuan Yining Machinery specializes in manufacturing valve forgings and components. With in-house forging and CNC machining, we support drawing-based customization and OEM services. All bonnets are dimensionally inspected before shipment.

Frequently Asked Questions (FAQ)

Q: What standards do your flanged bonnets support?

A: We support ASME B16.5, DIN, GB and other major standards. Custom sizes can be made on request.

Q: Can you apply surface coating?

A: Yes, rust-preventive oil, zinc plating, or epoxy coating are available upon request.

DETAIL PICTURE

Forged Flanged Valve Bonnet

Product Introduction

Technical Specifications & Product Features

Application & Installation

Our Advantages

Frequently Asked Questions (FAQ)

DETAIL PICTURE

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