Stainless Steel Valve Bonnet

Product Name: valve bonnet
Material: stainless steel;
Weight Scope: 0.1-1800kg
Production Technology: Silica sol investment casting; Water glass investment casting ; Sand casting; Shell molding
Machining: customized
Heat Treatment: solution treatment
Quality Control: ISO9001

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Description

Our Stainless Steel Valve Bonnets are precision-engineered components designed to ensure secure sealing and structural support within valve assemblies. Manufactured using high-quality stainless steel or other alloys as specified by customers, these bonnets are suitable for high-pressure, high-temperature, and corrosive environments. With over 20 years of experience, we offer comprehensive OEM services, from casting to machining and surface treatment.

Stainless Steel Grades & Properties

CF8 (304)

Cr 18–21%, Ni 8–11% - Good corrosion resistance and weldability

CF8M (316)

Cr 16–18%, Ni 10–14%, Mo 2–3% - Superior resistance to chlorides and acids

Duplex (2205)

Cr 21–23%, Ni 4.5–6.5%, Mo 2.5–3.5% - Excellent strength and stress corrosion resistance

Application Fields

Commonly used in:

Water supply and treatment systems

Oil & gas and petrochemical industries

Chemical and slurry pumps

Firefighting, HVAC, and energy systems

Agricultural and industrial fluid handling

Product Advantages

Excellent corrosion resistance for demanding environments such as chemical, marine, and food processing industries

High mechanical strength and durability

Customizable materials and heat treatment based on working conditions

OEM capability to meet complex design specifications

Reliable quality control by an independent inspection team

Manufacturing Process

We utilize investment casting, sand casting, and shell molding techniques depending on the application and design complexity. All parts can be heat-treated upon request to enhance hardness, strength, or corrosion resistance. CNC machining is applied for precision features, and every part is thoroughly inspected before shipment.

Investment casting

Sand casting

Company Advantage

Our factory is certified by ISO 9001:2015 and backed by a strong technical team and independent QC department. We have been supplying valve components to customers in Europe, America, Japan, and beyond, earning trust through quality and consistency.