NEWS

I. ASTM B62 StandardASTM B62 is a standard formulated by the American Society for Testing and Materials, specifically for the specification requirements of bronze castings. For J-VALVES bronze butterfly valves, this standard provides detailed guidelines in multiple aspects. In terms of material, it

Understanding API and ANSI StandardsAPI StandardAPI 609 is a widely recognized standard that specifies the requirements for butterfly valves, including design, materials, testing, and marking. Compliance with API 609 ensures that the valves meet stringent quality and safety standards, making them su

In ship systems, bronze butterfly valves play an indispensable role, especially those with a caliber in the range of DN80 - DN300. Understanding the key points for their selection and the adaptation schemes to MARPOL standards is crucial for ensuring the normal operation of ship systems and meeting environmental protection requirements. The following is a detailed introduction for you.

In the industrial field, ANSI 150LB bronze butterfly valves are widely used. Dimensional tolerances and fluid compatibility in its design specifications are two key aspects, which will be analyzed in detail below.

I. Introduction
In the industrial field, bronze butterfly valves are widely used, and their leakage rate is one of the key indicators for measuring the performance of valves. Different international standards have their own regulations for the leakage rate testing of butterfly valves. Among them, API 598 and ISO 5208 are two commonly used standards. Understanding the differences in their pressure curves helps to evaluate the quality and performance of bronze butterfly valves more accurately. This article will conduct a comparative analysis on this aspect.


II. Pressure Curve of Leakage Rate Testing of Bronze Butterfly Valves under API 598 Standard