DIN과 ANSI 플랜지의 차이점은 무엇입니까?

산업용 배관 시스템, 플랜지는 파이프를 연결하는 데 중요한 역할을 합니다., 밸브, and other components. 하지만, not all flanges follow the same standards across different regions. Two of the most widely recognized standards in the world are DIN (Deutsches Institut für Normung) 그리고 ANSI (American National Standards Institute). Understanding the differences between DIN and ANSI flanges is essential for ensuring compatibility, 안전, and efficiency in global engineering projects.

이 기사에서는, we break down the key differences between DIN and ANSI flange systems and help you decide which standard best fits your application. Provided by SASAFLANGE, your global supplier of standardized and custom flange solutions.

What Is a DIN Flange?

DIN flanges are designed according to German and European specifications. These standards are widely used across Europe, 아시아, and parts of South America. DIN flanges are typically specified under the EN (European Norm) standard series, such as EN 1092-1.

DIN flanges are defined by:

Nominal pressure ratings (PN): PN6, PN10, PN16, PN25, PN40, 등.
Metric measurements
Design based on bar pressure at a reference temperature (usually 20°C)

SASAFLANGE supplies high-quality DIN flanges that comply with EN and ISO standards, ensuring proper fit and reliable performance in European-standardized systems.

What Is an ANSI Flange?

ANSI flanges, often also referred to as ASME flanges (due to ASME B16.5 being the governing standard), are based on American specifications. These flanges are commonly used in North America and in countries with U.S.-based industrial systems.

ANSI flanges are characterized by:

압력 등급: 150, 300, 600, 900, 1500, 그리고 2500
Imperial (inch-based) measurements
Design pressure and temperature considerations based on materials

SASAFLANGE offers a complete range of ANSI/ASME B16.5 flanges manufactured with high precision and certified for international industrial use.

Key Differences Between DIN and ANSI Flanges

1. Measurement Units

DIN uses the metric system: dimensions are in millimeters
ANSI uses the imperial system: dimensions are in inches

This difference affects bolt hole sizes, flange diameters, and thicknesses—making them generally incompatible without adapters.

2. Pressure Rating Systems

DIN flanges are categorized by PN ratings (압력 공칭), 예를 들어, PN10, PN16, PN40
ANSI flanges are classified by Class ratings, 예를 들어, 수업 150, 300, 600

These systems are not directly interchangeable, as PN and Class refer to different test parameters and do not align numerically.

3. 설계 표준

DIN flanges follow EN 1092-1 and related norms
ANSI flanges follow ASME B16.5 그리고 ASME B16.47 (for larger sizes)

Each system has its own rules for flange face types, 치수, 및 공차, which means fittings and gaskets designed for one standard typically won’t match the other.

SASAFLANGE provides both DIN and ANSI flanges with correct gaskets and bolt sets to ensure reliable sealing.

4. Face Types

Both DIN and ANSI standards use common face types like:

제기된 얼굴 (RF)
편평한 얼굴 (FF)
링형 조인트 (RTJ)

하지만, the design height and surface finish may vary, especially in high-pressure applications, requiring proper matching during system assembly.

5. Applications and Usage Regions

DIN flanges are common in 유럽, 아시아, and Africa, especially in water, 공조, and chemical systems
ANSI flanges are dominant in North America, Latin America, and globally in 기름, 가스, 석유화학 산업

Knowing your project’s regional requirements helps determine which flange standard to use.

Can You Interchange DIN and ANSI Flanges?

Generally, DIN and ANSI flanges are not interchangeable due to differences in dimensions, 볼트 패턴, 및 압력 등급. Attempting to connect mismatched flanges may lead to:

Improper sealing
Pressure loss or failure
Safety hazards and system damage

하지만, SASAFLANGE can supply custom adapters or transition flanges to bridge DIN-to-ANSI connections when required.

Materials and Surface Finishes

Both standards allow the use of various materials such as:

탄소강
스테인레스 스틸
합금강
듀플렉스와 슈퍼듀플렉스

Surface finishes also follow specific roughness parameters to ensure tight sealing with gaskets. ~에 SASAFLANGE, we maintain strict quality control over machining finishes to meet both DIN and ANSI criteria.

Quality Assurance and Certification

SASAFLANGE offers full certification for both flange types, 포함:

EN 10204 3.1 Material Test Certificates
소아과, CE, 그리고 ISO 9001 approvals for European markets
ASME and ASTM certifications for American standards

This ensures that no matter which system you use, you’re receiving fully traceable and compliant components.

Choosing the Right Flange Standard

When planning your piping system, ask the following:

Where will the equipment be installed? (Region and legal requirements)
Are you replacing or expanding an existing system? (Match existing flanges)
What pressure and temperature will the system operate under?
Do other connected components follow DIN or ANSI?

Still unsure? The team at SASAFLANGE is ready to assist with technical drawings, conversion support, and flange matching recommendations.

결론

그만큼 differences between DIN and ANSI flanges go beyond simple measurements—they impact every part of system design, pressure capacity, and global compatibility. Whether you’re working on an industrial project in Europe, the U.S., or globally, understanding these distinctions is key to avoiding costly installation issues.

SASAFLANGE is your trusted partner in supplying both DIN and ANSI standard flanges, 어댑터, and custom flange solutions. With global expertise, 빠른 배송, and precise engineering, SASAFLANGE ensures your pipeline connections are safe, 강한, and standard-compliant.

선택하다 SASAFLANGE—where global flange standards come together seamlessly.