There are significant differences between industrial-grade valves and sanitary-grade valves in terms of design, materials, and application scenarios. The following is a detailed comparison of the two:
1. Design standards
Industrial valves:
The design follows general industrial standards, such as API, ANSI, GB, etc.
Mainly focus on pressure resistance, temperature resistance, corrosion resistance and other properties.
Sanitary valves:
The design follows strict hygiene standards, such as 3A, FDA, EHEDG, etc.
Emphasis on characteristics such as no dead corners, easy cleaning, and no residue, suitable for high cleanliness requirements.
2. Material selection
Industrial valves:
Valve body materials: commonly used cast iron, cast steel, carbon steel, etc., suitable for high pressure and high temperature occasions.
Sealing materials: commonly used NBR, EPDM, PTFE, etc., suitable for a variety of media.
Sanitary valves:
Valve body materials: usually 316L stainless steel is used, which has excellent corrosion resistance and hygienic properties.
Sealing materials: commonly used PTFE, EPDM and other materials that meet FDA standards to ensure non-toxicity and pollution-free.
3. Structural design
Industrial valves:
The structural design is mainly to meet the requirements of pressure resistance and temperature resistance, and there may be dead corners or areas that are difficult to clean.
Applicable to industrial occasions such as petroleum, chemical industry, and electric power.
Sanitary valves:
Adopting a dead-angle-free design, the flow channel is smooth and easy to clean and disinfect.
Applicable to high-cleanliness industries such as food, pharmaceuticals, and cosmetics.
4. Surface treatment
Industrial valves:
The surface treatment is mainly to meet corrosion resistance, such as spraying, galvanizing, etc.
Sanitary valves:
The surface is precisely polished to achieve a roughness of Ra≤0.8μm, ensuring no residue and easy cleaning.
5. Application scenarios
Industrial valves:
Applicable to industrial fields such as petroleum, natural gas, chemical industry, electric power, and metallurgy.
Typical applications: pipeline transportation, pressure vessels, boiler systems, etc.
Sanitary valves:
Applicable to high-cleanliness industries such as food, beverages, pharmaceuticals, cosmetics, and biotechnology.
Typical applications: milk production lines, liquid medicine transportation, cosmetics filling, etc.
6. Operation and maintenance
Industrial valves:
There are various operation modes, including manual, electric, pneumatic, etc.
Maintenance focus: pressure resistance, sealing, corrosion resistance.
Sanitary valves:
The operation modes are mainly pneumatic and electric, and support automatic control.
Maintenance focus: cleaning and disinfection to ensure no residue and no pollution.
7. Cost
Industrial valves:
The cost is relatively low and suitable for large-scale industrial applications.
Sanitary valves:
The cost is relatively high and is mainly used in industries with strict cleanliness requirements.