Plate Flanges are essential components in industrial piping systems, providing secure connections between pipes, valves, and fittings. With a flat, circular design, they are typically welded or bolted to ensure leak-proof joints. Both stainless steel and carbon steel versions are widely used across industries that demand durability, pressure integrity, and easy assembly. As a professional flange manufacturer, Lianhe Valve ensures every flange meets strict quality and dimensional standards for dependable performance.
We produce a comprehensive range of plate flanges in stainless steel, carbon steel, and alloy steel. Each material offers unique benefits suited to specific working conditions:
| Material Type | Key Properties | Typical Applications |
|---|---|---|
| Stainless Steel Plate Flanges | Excellent corrosion resistance, hygienic surface finish | Chemical, food & beverage, and marine systems |
| Carbon Steel Plate Flanges | High strength and cost-efficiency | Oil & gas, power generation, structural piping |
| Alloy Steel Plate Flanges | Enhanced heat and pressure resistance | High-temperature and high-pressure pipelines |
Surface finishes such as polished, pickled, or coated options are available to meet different environmental and operational needs. We also provide custom thicknesses and diameters to suit specific project requirements.
All plate flanges from Lianhe Valve comply with major international standards including ANSI, ASME, DIN, EN, and JIS. These standards ensure global compatibility and consistent performance across industrial piping systems.
| Standard | Designation Example | Pressure Rating |
|---|---|---|
| ANSI / ASME | B16.5 | 150 – 2500 lbs |
| DIN | PN10 – PN40 | Up to 40 bar |
| EN / JIS | EN1092-1 / JIS B2220 | Varies by system |
Our plate flanges are available in a wide dimensional range, ensuring compatibility with various pipe sizes and pressure classes used in modern industrial applications.
These flanges are integral to numerous industrial systems, serving as reliable connectors for pipes, valves, and pumps. They are commonly used in sectors such as:
Oil and gas transportation and refining
Chemical and petrochemical processing
Food and beverage production
Water treatment and distribution
Construction and mechanical installations
Our industrial flanges offer excellent corrosion resistance, simple installation, and long-term durability, making them ideal for both high-pressure and general-purpose systems.
As a trusted plate flange manufacturer and supplier, Lianhe Valve integrates R&D, production, and quality assurance to deliver reliable piping components. We hold ISO, CE, and ECA certifications and comply with international standards such as ASME, DIN, and EN.
Comprehensive quality control and material traceability
Corrosion and temperature resistance for demanding environments
Large stock availability and short delivery times
Custom manufacturing for non-standard sizes or materials
With extensive industry experience, we provide consistent quality and technical support across our full range of stainless steel flanges and fittings.
Selecting the right plate flange requires evaluating several technical and operational factors. Key considerations include:
Material type based on fluid composition and corrosion exposure
Pressure rating and temperature range of the pipeline
Flange dimensions and compatibility with connected equipment
Welding or bolting requirements and installation conditions
The table below summarizes important selection factors:
| Selection Factor | Recommendation |
|---|---|
| Medium Type | Use stainless steel for corrosive media; carbon steel for general fluids |
| Pressure Class | Match flange rating to system pressure |
| Temperature | Choose alloy steel for high-temperature applications |
| Connection Method | Welded for permanent joints; bolted for removable connections |
For specialized projects or custom dimensions, please contact Lianhe Valve for expert consultation and tailored solutions.
We also offer a complete range of stainless steel flanges and fittings to complement our plate flange series. Customers exploring flange categories may also be interested in slip-on, weld neck, and threaded flanges, all designed for seamless integration within industrial piping systems. For more details about our products and capabilities, visit the Lianhe Valve company profile.
Q1: What is the main difference between a plate flange and a slip-on flange?
A: A plate flange is a flat, circular disc welded directly to the end of a pipe, while a slip-on flange slides over the pipe before welding for easier alignment.
Q2: Are stainless steel plate flanges suitable for corrosive environments?
A: Yes. Our stainless steel plate flanges offer excellent corrosion resistance, making them ideal for chemical and marine applications.
Q3: Which standards do Lianhe Valve plate flanges comply with?
A: They meet ANSI, ASME, DIN, EN, and JIS standards, ensuring global compatibility and reliability.
Q4: Can I order custom-sized plate flanges?
A: Absolutely. We offer custom dimensions, materials, and surface finishes upon request to meet specific project needs.
Q5: How can I get a quotation for plate flanges?
A: Simply contact Lianhe Valve with your specifications to receive a prompt and detailed quotation from our sales team.
As a professional plate flange manufacturer, Lianhe Valve (Wenzhou Lianhe Valve Fitting Co., Ltd.) is dedicated to providing durable, certified, and high-quality flange solutions for global industrial applications.
