Frequently Asked Questions
Short answers on sanitary grades, Tri-Clamp sizing, OEM and how to order from Haoqintech.
Sanitary stainless steel is stainless steel that has been manufactured and finished specifically for hygienic applications.
Compared with standard industrial stainless steel, sanitary stainless steel typically has a smoother surface finish and is designed to minimize areas where product residue, bacteria, or other contaminants could accumulate.
It is widely used in the food and beverage, dairy, pharmaceutical, biotechnology, fermentation, and other hygienic processing industries.
At Haoqintech, we primarily supply sanitary components manufactured from 304 and 316L stainless steel, depending on the application and customer requirements.
Both 304 and 316L are widely used stainless steel grades for sanitary applications, but they have different properties.
304 Stainless Steel
304 is one of the most commonly used stainless steel grades. It offers good corrosion resistance, durability, and cost-effectiveness and is suitable for many food, beverage, and general hygienic applications.
316L Stainless Steel
316L contains molybdenum, which provides better resistance to corrosion, particularly in environments containing chlorides and certain aggressive chemicals.
316L is often preferred for more demanding applications, including pharmaceutical, biotechnology, marine, and certain chemical-processing environments.
Which Grade Should You Choose?
The appropriate material depends on your process, fluid, cleaning chemicals, temperature, and operating conditions.
If you are unsure whether 304 or 316L is suitable for your application, send us your process requirements and our team can help you evaluate the appropriate material.
Yes.
We provide custom manufacturing and OEM/ODM services for sanitary stainless steel components.
Depending on the product, we can work from:
- Technical drawings
- Dimensions
- Samples
- Photos
- Connection specifications
- Material requirements
- Surface-finish requirements
- Application requirements
Please contact us with your specifications so we can confirm whether your requirements can be manufactured and provide a quotation.
Minimum order quantities depend on the product, material, manufacturing process, and customization requirements.
Sanitary tubing and fittings are commonly specified according to the outside diameter (OD) of the tubing, although the exact sizing system depends on the connection standard.
To identify the correct size, you can:
- Check the existing fitting or tubing specification.
- Measure the outside diameter of the tube.
- Measure the outside diameter of the fitting connection.
- Provide us with a photo and the relevant dimensions.
- Send us the original product drawing or specification.
If you are replacing an existing component, sending us a photo together with the dimensions can help us identify the appropriate product.
Please note that sanitary fitting dimensions can vary between standards and connection types, so confirming the applicable standard is important before ordering.
Tri-Clamp connections are widely used in hygienic process systems because they are easy to install, disassemble, clean, and maintain.
However, other connection types may be more appropriate depending on the application.
Common alternatives include:
Butt-Weld Connections
Butt-weld connections provide a permanent connection and are commonly used in sanitary process piping where a smooth, continuous internal surface is required.
Proper installation requires suitable welding procedures and qualified personnel.
Threaded Connections
Threaded sanitary connections can be convenient for certain applications and equipment connections. The thread standard should be confirmed before ordering, such as NPT, BSP, or another applicable standard.
Other Sanitary Connection Standards
Depending on the application and market, sanitary components may also be available in other connection standards and configurations.
If you are unsure which connection type is appropriate, send us your existing connection dimensions or drawing and we can help identify the correct option.
Our sanitary components are primarily available in:
- 304 stainless steel
- 316L stainless steel
Other materials may be available for specific components or applications.
Seal and gasket materials can also vary depending on the product and operating conditions.
When requesting a quotation, please let us know the required material, process temperature, fluid, cleaning method, and other relevant conditions so we can recommend a suitable configuration.
Yes.
Material certificates and other product documentation can be provided according to the product and project requirements.
If you require specific documentation, please let us know when requesting a quotation so we can confirm availability before production.
Surface finish depends on the product and application.
For sanitary applications, smooth internal surfaces are generally preferred because they are easier to clean and less likely to retain product residue or contaminants.
If your project requires a specific surface roughness, such as a specified Ra value, please include this requirement in your inquiry.
We can confirm the available surface finish for the specific product you are interested in.
The more information you provide, the more accurately we can recommend and quote the product.
For a standard product, please provide:
- Product name or photo
- Size
- Material
- Connection type
- Quantity
For custom products, please provide:
- Technical drawing, if available
- Dimensions
- Material requirements
- Surface-finish requirements
- Connection standard
- Operating conditions
- Quantity
- Application
If you do not have a technical drawing, don’t worry.
You can simply send us photos, measurements, or a description of what you need, and our team will help identify the required specifications.
Yes.
We can evaluate custom products based on technical drawings, samples, dimensions, or other available information.
For custom projects, we recommend providing as much technical information as possible so that we can confirm the design, material, dimensions, and manufacturing requirements before production.
Our sanitary stainless steel components are suitable for a variety of hygienic and fluid-processing applications, including:
- Food and beverage
- Dairy processing
- Brewing and wine
- Pharmaceutical processing
- Biotechnology
- Fermentation
- Liquid culture and mushroom cultivation
- Water and process-fluid systems
- General hygienic fluid handling
The suitability of a particular component depends on the process and operating conditions.
Yes.
Haoqintech’s team has practical experience with liquid culture and fermentation systems.
We supply components used in these systems, including:
- Sanitary fittings
- Tri-Clamp connections
- Valves
- Filters
- Sterile-air filtration components
- Tank breathers
- Tank-cleaning equipment
- Custom stainless steel components
Yes.
We provide equipment and technical support for liquid spawn and liquid culture fermentation systems.
Our experience includes fermentation vessels, sterile-air filtration, steam sterilization, temperature control, sanitary piping, and inoculation-related equipment.
For complete system projects, please provide your required vessel capacity, process requirements, production target, and site conditions so that we can evaluate the appropriate configuration.
The correct filter depends on several factors, including:
- Filtration medium
- Required filtration rating
- Flow rate
- Operating pressure
- Operating temperature
- Filter material
- Cartridge dimensions
- Connection type
- Required level of cleanliness or sterility
For air or gas filtration, the filter specification must also be matched to the required flow rate, pressure, temperature, and sterilization conditions.
CIP — Clean-in-Place
CIP means Clean-in-Place.
It is a cleaning process that allows equipment and process piping to be cleaned without removing or disassembling the equipment.
CIP systems commonly use controlled flows of water and cleaning solutions to remove product residues and contaminants from internal surfaces.
SIP — Sterilization-in-Place
SIP means Sterilization-in-Place.
It is a sterilization process carried out inside the equipment or process system without disassembly.
Steam is commonly used for SIP in suitable systems.
CIP and SIP serve different purposes, although they are often used together in hygienic and fermentation processes.
Yes.
We supply sanitary tank-cleaning components including spray balls and rotary spray heads for CIP applications.
The appropriate cleaning device depends on factors such as:
- Tank diameter
- Tank geometry
- Type of residue
- Required cleaning coverage
- Flow rate
- Operating pressure
- Cleaning chemicals
Minimum order quantities depend on the product.
Standard products may have different order requirements from custom-manufactured components.
For OEM/ODM projects, the MOQ may depend on:
- Product type
- Material
- Customization
- Tooling requirements
- Production process
- Required quantity
Please contact us with the product and quantity you need so we can confirm the applicable MOQ.
Lead time depends on the product, quantity, customization, material availability, and current production schedule.
Standard products may have shorter lead times, while custom products generally require additional time for technical confirmation and manufacturing.
We will confirm the estimated lead time when providing your quotation.
Yes.
We work with customers in international markets and can arrange export packaging and shipping according to the agreed requirements.
Please provide your destination country and required products when requesting a quotation so that we can confirm the available shipping options.
You can contact us with your product requirements, technical questions, drawings, photos, or project information.
Wenzhou Haoqin Technology Co., Ltd.
Email: IvyZhang@haoqintech.com
Phone / WhatsApp: +86 185 7664 8970
If you are not sure which product or specification you need, simply send us a photo, drawing, or description of your application.
Our team will review your requirements and help you identify a suitable solution.