Analysis of Key Requirements for Gate Valve Standards in The Petroleum Vs. Chemical Industry: API 6D And ISO 10434

1. Design Requirements

Structural Design: API6D requires that the valve design must be able to withstand the maximum working pressure within its rated pressure and temperature range.

Material Selection: The valve materials must comply with the provisions of API6D, usually including carbon steel, alloy steel, and stainless steel, etc.

Sealing Performance: The valve must have reliable sealing performance, especially under high-pressure and high-temperature conditions.

2. Manufacturing Requirements

Manufacturing Process: API6D has strict requirements for the manufacturing process of valves, including welding, heat treatment, and surface treatment, etc.

Quality Control: Manufacturers must establish a strict quality control system to ensure that each valve meets the standard requirements.

3. Testing Requirements

Pressure Testing: API6D requires pressure testing for each valve to verify its sealing performance under the maximum working pressure.

Functional Testing: The valve also needs to undergo functional testing, including the smoothness of opening and closing operations.

1. Design Requirements

Structural Design: ISO 10434 specifies the structural design of the valve, including valve body wall thickness, bonnet wall thickness, valve body dimensions, etc.

Material Selection: The valve materials must be able to withstand the expected operating conditions, including harsh environments such as corrosion and erosion.

Sealing Performance: The design of the valve sealing surface and the selection of materials must ensure the sealing performance under high pressure and high temperature conditions.

2. Manufacturing Requirements

Manufacturing Process: ISO 10434 has detailed regulations on the manufacturing process of the valve, including welding, heat treatment and surface treatment, etc.

Quality Control: Manufacturers must establish a strict quality control system to ensure that each valve meets the standard requirements.

3. Testing Requirements

Pressure Testing: ISO10434 requires pressure testing for each valve to verify its sealing performance under the maximum working pressure.

Functional Testing: The valve also needs to undergo functional testing, including the smoothness of opening and closing operations.