DIN Flange

Leveraging the high precision of DIN specifications and the excellent corrosion resistance of stainless steel, our products are widely applied in industrial fields including petrochemical engineering, municipal water supply and drainage, food and pharmaceutical manufacturing, electric power and energy, metallurgy and shipbuilding. As a reliable supplier and factory, DIYE VALVE’s DIN flanges have become one of the mainstream flange types in international fluid transfer systems.

Product Introduction

1. High Standardization

DIN flanges feature global universality with unified dimensions and parameters as well as excellent interchangeability, perfectly meeting the pipe connection requirements of international engineering projects.

2. Outstanding Corrosion Resistance

Crafted from stainless steel, they are suitable for various corrosive environments involving acids, alkalis, salts, seawater and chemical media. No additional anti-corrosion treatment is needed, resulting in low maintenance costs.

3. Reliable Sealing

DIN flanges demand high machining precision for sealing faces and bolt holes. When matched with special stainless steel gaskets, rubber gaskets or metal spiral wound gaskets, they can achieve leak-free sealing under high pressure and high temperature conditions.

4. High Strength & Long Service Life

Stainless steel material boasts excellent tensile and impact resistance, and is resistant to high and low temperatures (some stainless steel grades are applicable to working conditions of -196℃~800℃), suiting harsh working environments such as extreme cold and high temperature.

5. Wide Adaptability

DIN flanges are available in a variety of structural types, pressure ratings and materials, which can meet the full-scenario pipe connection needs from low-pressure civil use to high-pressure industrial applications.

6. Common Pressure Ratings

The mainstream nominal pressures of the DIN flange system include PN6, PN10, PN16, PN25, PN40, PN63, PN100, etc., adapting to the pressure requirements of different working conditions. Among them, PN10/PN16 are the commonly used grades for general industrial working conditions, and PN40 and above are suitable for high-pressure fluid transfer scenarios.

About Us

1.As a professional manufacturer, DIYE is well-versed in complex working conditions such as extreme cold, corrosion and high pressure. Our stainless steel flanges are perfectly adapted to the harsh environments in Russia, Europe, the Middle East and other regions. Their dimensional accuracy and sealing performance have been verified by long-term export, with an extremely low repair rate.

2.We have full-process capabilities from stainless steel flange drawing conversion, customized production to testing and certification. We can quickly respond to the demands for non-standard flanges and special materials, with a controllable delivery cycle.

3.As a source factory with no middleman markups, we conduct centralized procurement of stainless steel plates/forgings, with strict cost control. Our products deliver a higher cost performance than those from trading companies.

FAQ

Q: What information is required for accurate quotation/selection when purchasing DIN flanges in China?

A: You need to provide the standard (e.g. DIN), DN, PN, flange type (PL/SO/WN, etc.), sealing face (FF/RF, etc.), material (304/316L, etc.) and purchase quantity. If there are special working conditions (e.g. extreme cold, strong corrosion), please specify them. DIYE's professional team can quickly match the optimal solution for you.

Q: Does DIYE provide samples of stainless steel flanges, and how is the sample fee charged?

A: We can provide free samples for regular models (DN15-DN50 PN10/16), with the customer only bearing the freight cost. For samples of large-caliber/special materials, a small cost fee will be charged, which can be deducted from the subsequent bulk purchase order.