플랜지는 배관 시스템의 필수 구성 요소입니다., connecting pipes, 밸브, 슬리퍼, 그리고 다른 장비. 하지만, not all flanges are created equal. One of the most important factors to consider when selecting a flange is its 압력 등급. This rating determines the maximum pressure the flange can handle under specific temperature conditions. 이 기사에서는, we will explain what flange pressure ratings are, 그들이 어떻게 작동하는지, and why they matter in industrial applications.

As a professional flange supplier, SASAFLANGE offers a wide range of pressure-rated flanges to meet the demands of different industries and applications. Understanding these ratings can help you select the right flange for your project and ensure safety, 내구성, 및 규정 준수.

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플랜지 압력 등급이란 무엇입니까??

Flange pressure ratings, also known as 압력 등급, indicate the amount of internal pressure a flange can safely withstand at a given temperature. These ratings are defined by international standards such as:

• ASME B16.5 (used in the US and internationally)

• EN 1092-1 (European standard)

• DIN (German standards)

Common pressure ratings in ASME B16.5 포함하다:

• 수업 150

• 수업 300

• 수업 600

• 수업 900

• 수업 1500

• 수업 2500

Each class refers to a range of pressure capacities, not a fixed number of pounds per square inch (psi).

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Pressure Rating vs Actual Pressure

It is important to note that a Class 150 flange does ~ 아니다 mean it can handle exactly 150 psi. The pressure capacity varies depending on:

• 플랜지 재료

• 작동 온도

• Corrosion allowance

• 파이프 일정

예를 들어, 클래스 150 stainless steel flange may handle 285 psi at 100°F, but its capacity decreases as the temperature increases.

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Temperature Effects on Pressure Ratings

Flange pressure ratings are temperature-dependent. The higher the temperature, the lower the pressure rating. This is due to the weakening of the flange material at elevated temperatures.

예를 들어:

• 수업 300 flange in carbon steel may handle:

  • 570 psi at 100°F

  • 260 psi at 600°F

Different materials (like stainless steel or alloy steel) will have different reductions in capacity.

SASAFLANGE provides material-specific pressure rating tables to help customers select the right flange under their expected temperature range.

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Flange Rating Conversion: ASME vs EN

If you work with global suppliers, you may encounter different rating systems: