Valve Components

Stainless Steel Valve Bonnet – Precision Machined for Industrial Valves

Name: Stainless Steel Valve Bonnet – Precision Machined for Industrial Valves
Rating: 5 (69 reviews)

The valve bonnet, precision-machined from stainless steel, serves as a critical pressure-bearing component. This valve bonnet ensures a reliable seal with the valve body, while its key mating surfaces and bolt holes are accurately arranged. The design of the valve bonnet accommodates valve stems, stuffing boxes, or actuator supports.

Material 316L Stainless Steel（Available in various materials according to customer requirements.）
Size Customizable according to customer requirements.

Product Overview

The bonnet is a key part of the valve structure that connects the valve body to the stem/actuator to withstand internal pressure and provide mounting support for the stem sealing system. The product is precision machined by CNC equipment to ensure dimensional consistency, and is suitable for high pressure, high temperature or corrosive media conditions.

Specifications

- Material: CF8M, CF3M, A105, F316, 2205 Duplex, etc.

- Processing: CNC precision machining.

- Surface roughness / Finish: Ra ≤ 1.6 μm (sealing surface)

- Threaded Holes: UNF / Metric as per drawing.

- Pressure Class: Class 150 / 300 / 600 / Customised

- Connection: Flanged, threaded, welded.

Features & Applications

Key Features

- High-precision fit ensures leak-free connection with the valve body.

- Supports stem and stuffing box assembly installation

- Reasonable distribution of screw holes for easy maintenance and disassembly.

- Materials can be customised according to working conditions

- Adaptable to a wide range of actuator mounting hole designs

Applications

- Petrochemical process control systems

- Natural gas pipeline valves

- Water treatment and desalination equipment

- High-temperature and high-pressure pipelines in power stations

- Various types of ball valves, gate valves, globe valves supporting parts

Assembly & Mounting / Why Choose Us

Assembly & Mounting

Bonnet and valve body are connected by bolts, with metal or flexible gasket in the middle. The bolt preload should be controlled during installation to avoid bias load and ensure uniform sealing.

Why Choose Us

We have many years of experience in the processing of stainless steel valve fittings, all products are provided with dimensional inspection report, 3.1 material certificate, packaging rust treatment, support OEM / ODM custom. We can provide a complete set of valve fittings to match the valve body.

Frequently Asked Questions (FAQ)

Q: Can I only order the bonnet as a single piece?

A: Yes, we support individual purchase or matching purchase.

Q: Do you support processing with the valve body?

A: Yes, we can provide uniform machining accuracy and mating dimensions according to the requirements of the complete assembly.

Q: Do you support third party testing?

A: Yes, we can provide third party inspection according to customer's requirement.

DETAIL PICTURE

Stainless Steel Valve Bonnet – Precision Machined for Industrial Valves

Product Overview

Specifications

Features & Applications

Assembly & Mounting / Why Choose Us

Frequently Asked Questions (FAQ)

DETAIL PICTURE

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