Wenzhou Haoqin Technology Co., Ltd.

Wenzhou Haoqin Technology Co., Ltd. (Haoqintech) is a manufacturer and supplier of sanitary stainless steel components and fluid-processing equipment.

Our products include sanitary filters, filter housings, fittings, valves, tank breather filters, tank cleaning and CIP components, and custom stainless steel solutions for hygienic processing applications.

Haoqintech also has practical experience in fermentation and liquid culture systems, including sanitary process piping, sterile-air filtration, CIP/SIP-related equipment and process integration.

On this channel, we share product videos, technical information, manufacturing details and real project experience from sanitary processing and fluid-processing applications.

For product inquiries, project consultation or custom sanitary equipment requirements, please visit our website or contact us directly.



Wenzhou Haoqin Technology Co., Ltd.

How do sanitary components work together in a liquid mushroom spawn fermentation system?

A fermentation system is not just about the tanks.

Fermentation tanks, sanitary piping, valves, fittings, liquid filtration, sterile-air filtration, tank breather filters, and CIP equipment all have to work together as part of the process.

In a real system, each component has a specific role โ€” and the way they are connected can be just as important as the individual components themselves.

At Haoqintech, our experience started with fermentation and liquid culture systems, and we continue to apply that system-level understanding to sanitary stainless steel components and fluid-processing equipment.

Weโ€™ve put together a new article explaining how these components work together, with examples from real Haoqintech fermentation projects.

๐Ÿ‘‰ Read the full article on our website:
https://haoqintech.com/sanitary-components-liquid-mushroom-spawn-fermentation-system

#Haoqintech #FermentationSystem #LiquidMushroomSpawn #SanitaryEquipment #StainlessSteel #ProcessEquipment #CIP #SanitaryProcessing

4 days ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

**How to Choose a Sanitary Tank Breather Filter?**

Choosing a tank breather filter is not simply about pipe size.

Here are 7 important factors to consider:

๐Ÿ”น Tank breathing and air exchange requirements
๐Ÿ”น Required filtration level
๐Ÿ”น Stainless steel material: 304 or 316L
๐Ÿ”น Tri-Clamp or threaded connection
๐Ÿ”น Filter size and required air capacity
๐Ÿ”น Pressure and vacuum conditions
๐Ÿ”น Cartridge replacement and maintenance

For fermentation, food & beverage, pharmaceutical and other hygienic processes, choosing the right tank breather can help support clean and reliable tank operation.

Haoqintech supplies sanitary stainless steel tank breather filter housings, including our **304 Sanitary Tri-Clamp Tank Breather Filter Housing**.

Available in **5-inch and 10-inch lengths**, with **215, 222 and 226 cartridge interface options**.

๐Ÿ“– Read the full guide:
https://haoqintech.com/how-to-choose-sanitary-tank-breather-filter/

#TankBreather #TankVentFilter #SanitaryEquipment #TriClamp #StainlessSteel #Fermentation #FoodProcessing #PharmaceuticalEquipment

1 week ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

Tri-Clamp Fittings Explained ๐Ÿ”ง


A Tri-Clamp connection is built around three simple components:

Ferrule + Gasket + Clamp

Together, they create a practical sanitary connection that can be quickly assembled and disassembled for cleaning, inspection and maintenance.

Tri-Clamp fittings are widely used in food, beverage, dairy, pharmaceutical, brewing and fermentation systems.

Need sanitary stainless steel fittings for your process system?
Haoqintech provides factory-direct sanitary stainless steel fluid equipment and fittings.

#TriClamp #SanitaryFittings #StainlessSteelFittings #SanitaryPiping #Haoqintech

1 week ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

A Real Haoqintech Project in Guangxi, China ๐Ÿ‡จ๐Ÿ‡ณ

This project was developed for liquid edible mushroom spawn fermentation, integrating stainless steel fermentation equipment, sanitary piping, filtration components, valves and process monitoring.

The video gives a closer look at the actual equipment and process-system configuration used in the project.

Application: Liquid Mushroom Spawn Fermentation
Location: Guangxi, China

A real project. Real equipment. Real engineering experience.

#Haoqintech #LiquidMushroomSpawn #MushroomFermentation #FermentationSystem #SanitaryStainlessSteel #EngineeringProject

1 week ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

Single-Cartridge vs Multi-Cartridge Filter Housing: Which One Should You Choose?
Single-Cartridge vs Multi-Cartridge Filter Housing: Which One Should You Choose?

Not necessarily.

The number of cartridges mainly affects the available filtration area and flow capacity. It does not automatically determine the filtration rating.

For example, a single cartridge with a 5-micron rating and three cartridges with a 5-micron rating can provide the same nominal filtration rating, while the three-cartridge configuration can provide a larger total filtration area and potentially higher flow capacity.

Therefore, cartridge quantity and filtration rating should be considered separately.

Cartridge quantity affects:

*Filtration area

*Flow capacity

*Pressure drop

*Cartridge service life

*Processing capacity

Cartridge selection affects:

*Particle retention

*Filtration rating

*Compatibility with the liquid

*Filtration performance

For more information about choosing the appropriate cartridge type, see our guide:

304 Stainless Steel Filter Housing: Which Filter Cartridge Should You Choose?
When Should You Choose a Single-Cartridge Filter Housing?

A single-cartridge housing may be a better choice when your system has a relatively low flow requirement or limited installation space.

It can be suitable for:

Small-scale liquid filtration

If the volume of liquid being processed is relatively small, a single cartridge may provide sufficient filtration capacity.

Pilot and laboratory systems

For pilot-scale processing and testing, a compact housing can make installation and cartridge replacement easier.

Lower initial equipment cost

When a single cartridge provides sufficient filtration performance, there may be no reason to install a larger multi-cartridge housing.

Simple filtration systems

A single-cartridge design can reduce equipment size and simplify maintenance.

When Should You Choose a Multi-Cartridge Filter Housing?

A multi-cartridge housing becomes more attractive when the system requires higher flow capacity or processes larger volumes of liquid.

It can be suitable for:

Higher flow rates

Multiple cartridges operating in parallel can provide a larger total filtration area.

Larger processing systems

Food, beverage, pharmaceutical, dairy and industrial liquid processing systems may require higher filtration capacity than a single cartridge can provide.

Continuous or frequent processing

When filtration is performed frequently, a multi-cartridge housing can provide greater filtration capacity and may help extend the operating interval between cartridge changes.

Larger filtration area

Using multiple cartridges inside one housing increases the total available filtration area.

What Is a 3-Cartridge Filter Housing?

A 3-cartridge filter housing is a type of multi-cartridge filter housing designed to hold three filter cartridges.

The three cartridges normally operate in parallel rather than simply filtering the liquid one after another.

This configuration can provide a useful balance between:

Filtration capacity

Equipment size

Cartridge quantity

Maintenance requirements

Overall system cost

For sanitary liquid processing, a stainless steel 3-cartridge housing can be used when a compact single-cartridge housing is not sufficient but a much larger multi-cartridge system is unnecessary.

304 Stainless Steel 3-Cartridge Filter Housing

Haoqintech offers a 304 SS Sanitary 3-Cartridge Filter Housing designed for hygienic liquid filtration applications.

The housing uses 304 stainless steel construction and accommodates three PP filter cartridges. It is available in:

5-inch

10-inch

20-inch

The housing features a removable cover and clamp-style closure for convenient cartridge replacement and maintenance.

The 3-cartridge configuration can be used in sanitary liquid processing systems where replaceable filter cartridges and cleanable stainless steel equipment are required.

๐Ÿ‘‰ View the 304 SS Sanitary 3-Cartridge Filter Housing

How to Choose the Right Filter Housing

Before selecting a filter housing, consider the following factors.

1. Required Flow Rate

Flow rate is one of the most important factors.

A small flow requirement may be adequately handled by a single cartridge, while higher flow rates may require multiple cartridges.

2. Processing Volume

Consider how much liquid needs to be filtered during normal operation.

Larger processing volumes generally require greater filtration capacity.

3. Filter Cartridge Type

Different cartridges are designed for different filtration requirements.

Common options include:

PP cotton cartridges

String wound cartridges

Stainless steel cartridges

The appropriate cartridge depends on the liquid and the particles that need to be removed.

4. Filtration Rating

Filtration ratings such as 1 ฮผm, 5 ฮผm, 10 ฮผm or other ratings should be selected according to the actual filtration requirement.

A higher number of cartridges does not replace the need to select the correct filtration rating.

5. Material Compatibility

For sanitary processing, stainless steel construction such as 304 or 316L may be selected according to the application, cleaning requirements and process conditions.

6. Connection and Installation Requirements

The housing should also match the existing piping system.

Depending on the application, connection options may include sanitary clamp connections or other connection configurations.

Single or Multi-Cartridge: Which Is Better?

There is no universal answer.

A single-cartridge filter housing is often the better choice when:

Flow requirements are relatively low

The system is compact

Processing volume is limited

Simple maintenance is preferred

Initial equipment cost needs to be minimized

A multi-cartridge filter housing is generally more suitable when:

Higher flow capacity is required

Larger volumes of liquid are processed

A larger filtration area is needed

The system is designed for industrial or sanitary processing

Multiple cartridges can operate efficiently in parallel

The best choice should therefore be based on the actual process requirements rather than simply choosing the housing with the greatest number of cartridges.

FAQ

Is a multi-cartridge filter better than a single-cartridge filter?

Not necessarily. A multi-cartridge housing mainly provides a larger total filtration area and higher potential flow capacity. The actual filtration performance also depends on the cartridge material and filtration rating.

Do multiple filter cartridges operate in series or parallel?

In many multi-cartridge housings, the cartridges operate in parallel. This allows the liquid flow to be distributed across multiple cartridges and increases the total available filtration area.

When should I use a 3-cartridge filter housing?

A 3-cartridge housing can be suitable when a single cartridge does not provide sufficient filtration capacity but a larger multi-cartridge system is unnecessary.

What is a sanitary multi-cartridge filter housing?

A sanitary multi-cartridge filter housing is a stainless steel filter housing designed to hold multiple replaceable filter cartridges for hygienic liquid processing applications.

Can the same cartridge type be used in single and multi-cartridge housings?

In many cases, the same cartridge types can be used, provided the cartridge dimensions, connection configuration and housing specifications are compatible.

Conclusion

Choosing between a single-cartridge and multi-cartridge filter housing depends on the requirements of the filtration system.

For smaller flow rates and compact systems, a single-cartridge housing may provide a simple and economical solution. For higher flow rates, larger processing volumes and applications requiring greater filtration area, a multi-cartridge housing can be a more practical choice.

The number of cartridges is only one part of the selection process. Flow rate, filtration rating, cartridge type, material compatibility, connection type and operating conditions should all be considered before selecting a filter housing.

For sanitary liquid filtration applications, Haoqintech provides stainless steel filter housing solutions and can help

1 week ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

Looking for a 304 Stainless Steel Filter Housing?

Our Quick-Connect Filter Housing is designed for convenient cartridge filtration and pre-filtration applications.

Available options:
๐Ÿ”น 5", 10" & 20" housing lengths
๐Ÿ”น 1/2" (DN15), 3/4" (DN20) & 1" (DN25) ports
๐Ÿ”น PP Cotton, String Wound & Stainless Steel cartridges
๐Ÿ”น 304 Stainless Steel construction
๐Ÿ”น Quick-connect clamp design

Factory-direct supply from Haoqin.

๐Ÿ‘‰ Learn more: www.haoqintech.com

#FilterHousing #StainlessSteel #CartridgeFilter #Filtration #IndustrialFiltration

1 week ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

How to Choose Sanitary Stainless Steel Filters and Strainers for Hygienic Processing

Sanitary filters and strainers play an important role in hygienic liquid processing systems. They help remove unwanted particles, protect downstream equipment and maintain the cleanliness of process lines used in food, beverage, dairy, pharmaceutical and other sanitary applications.

However, not every filter or strainer is suitable for every process. The correct selection depends on the type of particles being removed, required filtration level, flow conditions, connection type, material and cleaning requirements.

This guide explains the main types of sanitary stainless steel filters and strainers and the key factors to consider when selecting one for a hygienic processing system.

Filter vs. Strainer: What Is the Difference?

The terms "filter" and "strainer" are sometimes used interchangeably, but they generally refer to different levels of particle separation.

A strainer normally uses a perforated or mesh screen to remove relatively larger particles from a liquid or gas stream. The screen can usually be removed, cleaned and reused.

A filter is generally designed for finer filtration and may use a cartridge, membrane or other filtration media.

For example, a stainless steel mesh inline strainer is commonly used to protect pumps, valves and other equipment from larger particles. A cartridge filter housing, on the other hand, can accommodate a replaceable filter cartridge for finer filtration requirements.

Understanding this difference is important when selecting sanitary filtration equipment.

Common Types of Sanitary Stainless Steel Filters and Strainers

Haoqintech supplies several types of sanitary filtration and straining components for hygienic processing systems.

1. Sanitary Inline Strainers

Inline strainers are installed directly into a process pipeline. They are commonly used to remove particles from a liquid stream while allowing the process to continue through the pipeline.

A typical sanitary inline strainer consists of a stainless steel housing and a removable mesh screen.

Important selection factors include:

Pipe size
Mesh size
Flow direction
Connection type
Operating pressure
Cleaning requirements
Material grade

Tri-Clamp connections are widely used when quick installation, disassembly and cleaning are important.

2. Sanitary Y-Strainers

A sanitary Y-strainer uses a Y-shaped body with a removable screen element.

The angled design provides a convenient location for the straining element and can be useful in applications where regular screen inspection or cleaning is required.

Y-strainers are commonly used for:

Liquid processing pipelines
Pump protection
Valve protection
Food and beverage processing
Dairy processing
Hygienic water and fluid systems

When selecting a Y-strainer, pay attention to the screen mesh size, connection standard and available installation space.

3. Sanitary Cartridge Filter Housings

Cartridge filter housings are designed to hold replaceable filter cartridges.

Unlike a simple mesh strainer, a cartridge filter housing can be used when a finer or more controlled filtration process is required.

Typical applications include:

Process liquid filtration
Clean air and process gas filtration
Pre-filtration
Pharmaceutical processing
Food and beverage processing
Fermentation systems

The correct cartridge size, filtration rating and housing configuration should be selected according to the actual process requirements.

304 vs. 316L Stainless Steel

Material selection is another important consideration.

304 stainless steel is widely used for general sanitary processing applications because it provides good corrosion resistance, mechanical strength and cost efficiency.

316L stainless steel provides higher corrosion resistance and is often selected for applications involving more aggressive process fluids or where additional corrosion resistance is required.

The appropriate material depends on the process medium, temperature, cleaning chemicals and applicable industry requirements.

When in doubt, the process conditions should be reviewed before selecting the stainless steel grade.

Why Connection Type Matters

A sanitary filter or strainer is only useful when it can be properly integrated into the process piping system.

Tri-Clamp connections are commonly used in hygienic processing because they allow components to be connected and disconnected relatively quickly.

When choosing a sanitary filter or strainer, confirm:

Tube outside diameter
Connection standard
Ferrule size
Clamp size
Gasket compatibility
Installation direction

Incorrect connection dimensions can cause installation problems even when the filtration component itself is suitable.

How to Choose the Right Mesh Size

Mesh size is one of the most important specifications for a sanitary strainer.

A smaller opening provides finer particle retention, but it can also increase pressure drop and may require more frequent cleaning.

A larger opening allows higher flow with less resistance but provides less particle removal.

Therefore, the correct mesh size should not simply be chosen based on the smallest possible opening.

Consider:

The size of particles that must be removed.
Required flow rate.
Allowable pressure drop.
Expected amount of contamination.
Cleaning frequency.
Protection requirements for downstream equipment.

The goal is to achieve the required particle removal while maintaining suitable process performance.

Consider Cleaning and Maintenance

Sanitary processing equipment must be designed with cleaning and maintenance in mind.

A removable screen or filter element can make inspection and cleaning easier. The housing should also be suitable for the intended cleaning method and process conditions.

For systems using CIP, the compatibility of the component with the cleaning process should be considered before installation.

Regular inspection is particularly important when the strainer is protecting sensitive equipment such as pumps, valves or downstream filtration systems.

How to Select the Right Sanitary Filter or Strainer

Before ordering a sanitary filtration component, prepare the following information:

Process Medium

Specify whether the application involves water, food products, beverages, chemicals, air, gas or another process medium.

Required Filtration Level

Determine the approximate particle size that needs to be removed.

Flow Rate

The required flow rate helps determine the appropriate connection size and filtration configuration.

Stainless Steel Grade

Select 304 or 316L stainless steel according to the process environment and corrosion requirements.

Connection Type

Confirm whether the system uses Tri-Clamp or another sanitary connection standard.

Operating Conditions

Where applicable, provide:

Operating pressure
Operating temperature
Cleaning temperature
Cleaning chemicals
Continuous or intermittent operation

Providing these details makes it easier to select a suitable configuration.

Final Considerations

Choosing a sanitary stainless steel filter or strainer is not simply a matter of selecting the smallest mesh size or the largest available connection.

A suitable component should match the process medium, filtration requirement, flow rate, connection standard, material and cleaning method.

For general particle removal and equipment protection, a sanitary inline strainer or Y-strainer may be appropriate. For finer filtration requirements, a sanitary cartridge filter housing may provide a more suitable solution.

Haoqintech supplies sanitary stainless steel filtration and straining components in 304 and 316L stainless steel for hygienic processing, including inline strainers, Y-strainers and cartridge filter housings.

For custom sizes, connections or configurations, contact Haoqintech with your process requirements and technical specifications.

2 weeks ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

Featured Products from Haoqintech

2 weeks ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

How to Choose and Use a Sanitary Tri-Clamp Filter in Process Lines?

Most process engineers only think about filters when something goes wrong โ€” a pump starts making noise, a spray ball stops rotating, or product quality becomes inconsistent. In reality, a correctly specified sanitary tri-clamp filter prevents these problems long before they appear.
This article focuses on practical selection and daily use, rather than general product features.
1. Where Should the Filter Actually Be Installed?
Location matters more than most people realize. Common effective positions include:

Immediately before a pump (protects the seal and impeller)
Upstream of spray balls or filling nozzles
On CIP return lines (catches debris before it re-enters the system)
At the outlet of mixing or cooking tanks

Avoid placing the filter too far from the equipment it is meant to protect. Long pipe runs after the filter can still allow particles to enter sensitive zones.
2. Straight-Through vs Angle Body โ€” Which One Makes Sense?
Both designs use the same Tri-Clamp connection and perforated screen, but they solve different layout problems.

Straight-through body: Best when the pipe run is already linear and space is limited in height.
Angle body: Useful when you need to change direction or when the filter must sit lower for easier screen removal.

If operators need to open the filter frequently, the angle version often provides better access.
3. Screen Selection Is Not Just About Mesh Size
Many buyers only ask for โ€œ100 meshโ€ or โ€œ200 mesh.โ€ In practice, you should also consider:

Open area percentage (affects pressure drop)
Whether the screen is perforated plate or woven wire
How easily trapped particles can be removed during cleaning
Compatibility with your product viscosity

A finer screen is not always better. Too fine a screen on a high-viscosity product can create excessive pressure drop and frequent clogging.
4. Cleaning Reality Check
The biggest advantage of a tri-clamp filter is speed of maintenance. In most plants, the actual cleaning sequence looks like this:

Isolate and depressurize the line
Release the clamps
Remove the screen
Rinse or ultrasonic clean the element
Inspect for damage
Reassemble with a new or cleaned gasket if needed

The entire process can take under 10 minutes when the filter is properly located and the clamps are accessible. This is why Tri-Clamp designs are preferred over flanged filters in hygienic plants that run frequent changeovers.
5. Common Mistakes We See in the Field

Installing the filter after the pump instead of before it
Using a screen that is too fine for the product
Forgetting to check differential pressure regularly
Reusing damaged silicone gaskets
Mounting the filter in a hard-to-reach position

Any of these can turn a simple component into a recurring maintenance headache.
6. Quick Selection Checklist
Before ordering, confirm:

Exact Tri-Clamp size (ฯ†32, ฯ†38, ฯ†51, ฯ†63, etc.)
Preferred body style (straight or angle)
Required filtration level
Material (304 is standard; 316L for higher corrosion resistance)
Expected cleaning frequency

Providing these details upfront usually results in a better-performing installation.
Final Thought
A sanitary tri-clamp filter is a small component, but its placement, screen choice and accessibility have a direct impact on uptime and product consistency. Treating it as a simple โ€œadd-onโ€ often leads to unnecessary problems later.
When specified correctly, it becomes one of the easiest and most cost-effective ways to protect both equipment and product quality.

Need help selecting the right size or screen?

Send us your line size, product type and cleaning frequency โ€” we can recommend a suitable configuration.

2 weeks ago | [YT] | 0

Wenzhou Haoqin Technology Co., Ltd.

Haoqintech โ€“ From Real Projects to Reliable Sanitary Components
Before Wenzhou Haoqin Technology Co., Ltd. (Haoqintech) was founded, our core team spent years traveling across China and overseas, designing and building complete liquid spawn (liquid strain) cultivation systems for edible mushroom producers.
We worked hands-on with sterile environments, steam valves, CIP cleaning, and full process pipelines. Time and again, clients asked us the same question:
โ€œWhere can we get reliable, precision-fit sanitary stainless steel spare parts that actually meet the specifications?โ€
That question is why Haoqintech was established.
We turned years of real project experience into a focused manufacturer of high-quality sanitary stainless steel fluid equipment and fittings. Everything we supply is designed from practical needs in food, dairy, beverage, pharmaceutical, and liquid culture applications โ€” not just theory.
What we currently offer:

Sanitary Tri-Clamp fittings & connections (weld ferrules, elbows, tees, crosses, reducers, etc.)
Filters & strainers (inline filters, Y-strainers, precision mesh filters)
Valves (butterfly valves, ball valves, mini ball valves)
Tank-cleaning equipment (spray balls and nozzles)
Breathers & safety devices
Custom components made to your drawings

All products are manufactured from food-grade SS304 / 316L stainless steel with smooth polished surfaces for excellent cleanability and hygiene.
Factory-direct supply โ€ข Fast quotations โ€ข OEM/ODM support โ€ข Global shipping
Whether youโ€™re building a new hygienic system or looking for reliable spare parts, weโ€™re here to support your project with components that have been proven in real production environments.
Visit us: haoqintech.com
Feel free to send drawings โ€” we reply with a quote within 24 hours.

2 weeks ago | [YT] | 0