1. High temperature environment: Although stainless steel materials have certain high temperature resistance, the design of high vacuum stainless steel diaphragm valves is mainly aimed at high vacuum environments, not high temperature environments. Under high temperature conditions, the sealing performance and material stability of valves may be affected, making them unsuitable for high-temperature applications.

2. High pressure environment: The design of high vacuum stainless steel diaphragm valves mainly considers the sealing performance under high vacuum conditions, and their pressure bearing capacity is limited. In high-pressure environments, the structure and sealing performance of valves may not meet the requirements, making them prone to leakage or damage.

3. Strong corrosive media: Although stainless steel materials have certain corrosion resistance, the corrosion resistance of high vacuum stainless steel diaphragm valves may not meet the requirements for certain strong corrosive media, such as certain strong acids, strong alkalis, or special chemicals. In these cases, it is necessary to choose valve materials or structures that are more corrosion-resistant.

4. High speed fluid: The design of high vacuum stainless steel diaphragm valves is mainly aimed at sealing performance rather than flow control. In the case of high-speed fluid, the sealing performance of the valve may be affected, making it prone to leakage or damage to the brush.