STV Delivery Stainless Steel Y Flange Strainer 3 Inch PN16
Product Overview and Applications
The STV Delivery Y Flange Strainer features a CF8M stainless steel body with PN16 rated flanges, making it ideal for high-pressure industrial applications. The Y-configuration provides excellent flow characteristics while the removable stainless steel screen allows for easy maintenance and cleaning. This 3-inch model balances optimal flow capacity with effective filtration for medium to large industrial systems.
This versatile strainer excels in various industrial environments including:
- Chemical and pharmaceutical processing
- Water and wastewater treatment facilities
- Food and beverage production
- Petrochemical refineries
- HVAC systems in commercial buildings
- Compressed air systems
- Steam distribution networks

Ready to Protect Your Industrial Systems?
Our STV Delivery Stainless Steel Y Flange Strainers are in stock and available for immediate shipment.
Technical Specifications
| Specification | Details |
| Size | 3 Inch (DN80) |
| Pressure Rating | PN16 (16 bar maximum) |
| Body Material | Stainless Steel CF8M (1.4408) |
| Screen Material | Stainless Steel 304 (1.4301) |
| Connection Type | Flanged End (RF PN16) |
| Flange Standard | EN 1092-1 |
| Screen Mesh Size | 0.8mm (standard), optional 0.5-3mm |
| Temperature Range | -20°C to +200°C |
| Face-to-Face Length | 290mm (EN 558 Series 1) |
| Drain Connection | BSP Threaded Drain Plug |
| Gasket Material | PTFE |
| Flow Direction | Indicated by arrow on body |


Certification Information: This product is manufactured in accordance with Pressure Equipment Directive 2014/68/EU, Category III Module H, and carries CE certification. Material certificates 3.1 available upon request.
Key Features and Benefits

Superior Filtration
The precision-engineered stainless steel screen effectively captures particulates and debris while maintaining optimal flow rates. The standard 0.8mm mesh provides excellent filtration for most industrial applications, with custom mesh sizes available for specific requirements.

Easy Maintenance
The bolted bonnet design allows quick access to the removable filter element for inspection and cleaning. The BSP threaded drain plug facilitates efficient system drainage during maintenance operations, minimizing downtime and simplifying regular service procedures.

Corrosion Resistance
Constructed from premium CF8M stainless steel (equivalent to 316 SS), this strainer offers exceptional resistance to corrosion, making it ideal for aggressive media including acids, chemicals, and salt water. The robust construction ensures long service life even in challenging industrial environments.

Versatile Installation
The strainer can be installed in either horizontal or vertical positions with descendant fluid flow. This flexibility allows for optimal system design and space utilization while ensuring proper strainer function. Always follow the flow direction arrow indicated on the body for correct installation.

High Pressure Rating
With a PN16 pressure rating, this strainer can handle operating pressures up to 16 bar, making it suitable for demanding industrial applications. The robust construction and quality materials ensure reliable performance under continuous high-pressure conditions without compromising safety or efficiency.

Wide Temperature Range
Designed to operate effectively from -20°C to +200°C, this versatile strainer accommodates both cryogenic and high-temperature applications. The PTFE gasket ensures reliable sealing across the entire temperature spectrum, preventing leaks and maintaining system integrity.
Need Technical Assistance?
Our engineering team is available to help you select the right strainer for your application.
+8615157766245
Installation and Maintenance Guidelines
Installation Requirements
- Ensure proper alignment with connecting pipework to prevent stress on the strainer body
- Install with adequate clearance for screen removal and maintenance access
- Always follow the flow direction arrow marked on the strainer body
- For vertical installation, ensure descendant fluid flow (downward direction)
- Use appropriate gaskets and fasteners for the flange connections
- Install pressure gauges before and after the strainer to monitor pressure differential

Maintenance Procedures
- Regularly monitor pressure differential across the strainer to determine cleaning intervals
- Before maintenance, ensure the system is depressurized and drained
- Remove the bolted bonnet to access the screen element
- Clean the screen with appropriate solvents or brushes to remove accumulated debris
- Inspect the screen for damage and replace if necessary
- Check gasket condition and replace if worn or damaged
- Reassemble the strainer, ensuring proper alignment and torque specifications
Important: Always ensure the system is fully depressurized before attempting any maintenance procedures. Failure to do so could result in serious injury or equipment damage.

Strainer Type Comparison
| Feature | Y-Type Strainer | Basket Strainer | T-Type Strainer |
| Flow Efficiency | High | Medium | Medium |
| Debris Capacity | Medium | High | Low |
| Maintenance Ease | Good | Excellent | Fair |
| Space Requirements | Minimal | Substantial | Moderate |
| Pressure Drop | Low | Medium | Medium-High |
| Cost | Economical | Higher | Moderate |
Why Choose the STV Y-Type Strainer? The Y-configuration offers an optimal balance of flow efficiency, debris capacity, and compact design. For applications requiring continuous operation with minimal pressure drop, our stainless steel Y strainer provides superior performance compared to alternative designs.
Industry Applications

Chemical Processing
The CF8M stainless steel construction offers excellent resistance to corrosive chemicals, making this strainer ideal for protecting pumps, valves, and instrumentation in chemical manufacturing facilities. The removable screen allows for quick cleaning when processing different chemical batches.

Water Treatment
In water and wastewater treatment facilities, these strainers protect downstream equipment from debris and particulates. The PN16 pressure rating handles the high-pressure requirements of modern treatment systems, while the stainless steel construction resists chlorine and other treatment chemicals.

Pharmaceutical
The high-quality stainless steel construction meets stringent pharmaceutical industry requirements. These strainers help maintain product purity by removing contaminants from process fluids and protecting sensitive equipment in drug manufacturing facilities.

Food & Beverage
In food processing applications, these strainers help maintain product quality by removing particulates from process fluids. The stainless steel construction is easy to clean and sanitize, meeting food safety requirements while providing reliable protection for processing equipment.

HVAC Systems
These strainers protect chillers, heat exchangers, and pumps in commercial HVAC systems by removing scale and debris from circulation. The wide temperature range accommodates both chilled water and heating applications, while the flanged connections provide secure integration with building services pipework.

Steam Systems
The high temperature rating makes these strainers perfect for steam distribution systems. They protect steam traps, control valves, and heat exchangers from pipe scale and installation debris, improving system efficiency and reducing maintenance requirements.
Quality Assurance
Every STV Delivery Stainless Steel Y Flange Strainer undergoes rigorous quality control procedures to ensure exceptional performance and reliability:
- Material verification testing to confirm chemical composition
- Hydrostatic pressure testing at 1.5x rated pressure
- 100% visual inspection for surface defects and manufacturing flaws
- Dimensional verification to ensure compliance with international standards
- Screen integrity testing to confirm filtration performance
All products are manufactured in accordance with international standards including EN 12516-1, ASME B16.34, and Pressure Equipment Directive 2014/68/EU. Each strainer is supplied with comprehensive documentation including material certificates, test reports, and installation instructions.

Purchasing Information
Compatibility Considerations
When selecting a Y-type strainer for your application, consider these important compatibility factors:
- Verify the flange standard matches your existing pipework (PN16)
- Confirm the pressure rating meets or exceeds your system requirements
- Ensure the temperature range is suitable for your process conditions
- Select the appropriate mesh size for your filtration requirements
- Verify chemical compatibility with your process media
- Consider space requirements for installation and maintenance access
Our technical team can assist with selecting the optimal configuration for your specific application requirements. Contact us for customized recommendations and technical support.
What’s Included
- STV Delivery Stainless Steel Y Flange Strainer (3 Inch, PN16)
- Standard 0.8mm stainless steel mesh screen
- PTFE gasket pre-installed
- BSP threaded drain plug
- Material certification (3.1 certificate available upon request)
- Installation and maintenance manual
- Quality assurance documentation
“The STV Delivery Y-type strainers have proven exceptionally reliable in our chemical processing facility. The stainless steel construction handles our corrosive environment, and maintenance is straightforward. Highly recommended for demanding industrial applications.”
Ready to Order Your STV Delivery Stainless Steel Y Flange Strainer?
Our 3 Inch PN16 Y-type strainers are in stock and available for immediate shipment. Volume discounts available for bulk orders.
Frequently Asked Questions
What is the difference between a Y-strainer and a basket strainer?
Y-strainers have a compact, angled design that creates less pressure drop and requires less installation space compared to basket strainers. However, basket strainers typically have larger debris capacity and easier maintenance access. Y-strainers are ideal for applications where space is limited and moderate debris loading is expected.
How often should the strainer screen be cleaned?
Cleaning frequency depends on your specific application and the amount of debris in your system. As a best practice, monitor the pressure differential across the strainer – when it increases by 5-10 psi above the baseline, it’s time to clean the screen. For new installations, check more frequently as initial startup often captures installation debris.
Can I install this strainer in a vertical position?
Yes, this Y-strainer can be installed in either horizontal or vertical positions. For vertical installation, ensure the flow is in the descendant direction (downward) to properly capture debris in the screen and allow effective draining during maintenance.
Why Choose STV Delivery Stainless Steel Y Flange Strainers
Advantages
- Premium CF8M stainless steel construction for exceptional durability
- PN16 pressure rating suitable for demanding industrial applications
- Versatile installation options (horizontal or vertical)
- Easy maintenance with removable screen and drain plug
- Wide temperature range (-20°C to +200°C)
- Excellent corrosion resistance for aggressive media
- Comprehensive quality testing and certification
Considerations
- Requires more frequent cleaning than basket strainers in high-debris applications
- Limited debris capacity compared to larger strainer designs
- Maintenance requires system shutdown and depressurization
- Premium materials result in higher initial investment
The STV Delivery Stainless Steel Y Flange Strainer represents an optimal balance of performance, durability, and value for industrial filtration applications. With its robust construction, versatile installation options, and comprehensive quality assurance, this 3-inch PN16 strainer delivers reliable protection for your critical process equipment while minimizing maintenance requirements and system downtime.
Protect Your Industrial Systems Today
Contact our technical specialists to discuss your specific application requirements.
Or call us directly at:






