Description
20 Inch C95800 Y Strainer, Class 150LB, Flanged End
20 Inch C95800 Y Strainer, Class 150LB, Flanged End is a corrosion-resistant industrial pipeline strainer designed to remove solid contaminants from large-diameter piping systems.
Manufactured from ASTM B148 C95800 Nickel Aluminum Bronze, this 20 Inch Class 150 Y Type Strainer offers excellent corrosion resistance for demanding marine, seawater, offshore, desalination, and industrial water applications.
The Y-pattern body contains a removable internal screen designed to capture rust, welding debris, sand, scale, and other solid particles before they enter downstream equipment. By filtering contaminants from the pipeline, the strainer helps protect pumps, valves, heat exchangers, flow meters, and other critical equipment.
With a nominal size of 20 Inch, Class 150LB pressure rating, and flanged end connections, this large-size C95800 Y Strainer is suitable for seawater pipelines, marine systems, offshore facilities, cooling water systems, and other compatible industrial applications.
STV Valves manufactures and supplies customized C95800 Y Type Strainers with different screen materials, filtration mesh sizes, flange standards, pressure ratings, inspection requirements, and project-specific documentation.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | C95800 Y Type Strainer |
| Strainer Type | Y Pattern Strainer |
| Nominal Size | 20 Inch |
| Approximate DN Size | DN500 |
| Pressure Rating | Class 150LB |
| Body Material | ASTM B148 C95800 |
| Material Type | Nickel Aluminum Bronze |
| End Connection | Flanged End |
| Flange Facing | RF / Project Requirement |
| Screen Material | Stainless Steel / Duplex / Customized |
| Filtration Element | Removable Internal Screen |
| Screen Type | Perforated Screen / Wire Mesh / Customized |
| Drain Connection | Optional / Customized |
| Flow Direction | According to Body Marking |
| Testing | According to Applicable Standards and Project Requirements |
Note: Final face-to-face dimensions, flange dimensions, flange facing, pressure-temperature rating, screen mesh size, filtration accuracy, and testing requirements should be confirmed according to the approved technical drawing and project specification.
What Is a C95800 Y Type Strainer?
A C95800 Y Type Strainer is a mechanical filtration device designed to remove solid contaminants from industrial pipeline systems.
The Y-shaped body contains an internal filter screen. As the process medium passes through the strainer, unwanted particles are captured by the screen while the filtered fluid continues downstream.
The main purpose of the strainer is to protect downstream equipment and improve the reliability of the pipeline system.
Typical Contaminants Removed
- Sand
- Rust particles
- Welding slag
- Pipeline scale
- Metal particles
- Construction debris
- Marine debris
- Other suspended solids
What Is ASTM B148 C95800 Material?
ASTM B148 C95800 is a Nickel Aluminum Bronze casting alloy widely used in marine, offshore, seawater, and industrial applications requiring good corrosion resistance.
C95800 is commonly selected for industrial valves, pumps, strainers, and other components exposed to compatible seawater and marine environments.
Key Advantages of C95800 Nickel Aluminum Bronze
- Excellent resistance to seawater corrosion
- Good resistance to marine environments
- Good mechanical strength
- Suitable for offshore applications
- Good resistance to many industrial water environments
- Reliable performance in compatible chloride-containing services
- Widely used for marine valves and pipeline equipment
Final material suitability should always be evaluated according to the actual fluid composition, velocity, temperature, pressure, oxygen content, corrosion conditions, and project requirements.
20 Inch / DN500 Large Diameter Y Strainer
This product is specified as a 20 Inch Y Type Strainer, approximately equivalent to DN500.
Large-diameter Y Strainers are commonly installed in high-flow industrial pipelines where effective filtration is required to protect downstream equipment.
Typical 20 Inch Applications
- Large seawater pipelines
- Marine cooling systems
- Offshore utility systems
- Desalination plants
- Large industrial water systems
- Cooling water pipelines
- Pump intake systems
- Large process pipelines
Class 150LB Pressure Rating
This 20 Inch C95800 Y Strainer is specified with a Class 150LB pressure rating.
Class 150 is widely used in industrial piping systems. However, the actual allowable working pressure depends on operating temperature, material properties, applicable pressure-temperature ratings, flange design, and project requirements.
Factors Affecting Pressure Capability
- Operating temperature
- C95800 material properties
- Applicable pressure-temperature rating
- Flange dimensions
- Gasket material
- Bolting requirements
- Design standard
- Project specification
Class 150LB should not be interpreted as a fixed allowable working pressure at all temperatures. Final pressure-temperature capability must be verified according to the applicable engineering standard and approved project documentation.
Flanged End Connection
This 20 Inch Y Type Strainer is supplied with flanged end connections for secure installation into industrial piping systems.
Advantages of Flanged Ends
- Secure bolted pipeline connection
- Convenient installation
- Easy removal for maintenance
- Suitable for large diameter pipelines
- Compatible with project-specified gasket systems
- Convenient inspection and replacement
Before installation, the flange standard, dimensions, pressure class, facing type, bolt holes, and gasket requirements should be confirmed with the mating pipeline.
How Does the C95800 Y Strainer Work?
Step 1: Fluid Enters the Strainer
The process medium enters through the inlet connection.
Step 2: Fluid Flows Through the Filter Screen
The fluid passes through the internal filtration screen.
Step 3: Solid Particles Are Captured
Particles larger than the selected screen opening are retained inside the Y Strainer.
Step 4: Filtered Fluid Exits
Cleaned process fluid flows through the outlet toward downstream equipment.
Step 5: Screen Cleaning
As debris accumulates, the pressure drop across the strainer may increase. The internal screen should be inspected and cleaned or replaced according to operating requirements.
Applications of the C95800 20 Inch Y Type Strainer
Marine Industry
C95800 Nickel Aluminum Bronze is widely used in compatible marine environments.
- Shipbuilding systems
- Marine cooling systems
- Seawater pipelines
- Shipboard utility systems
- Marine pump protection
Offshore Oil and Gas
Typical applications may include:
- Offshore platforms
- Seawater utility systems
- Cooling systems
- Water injection support systems
- Equipment protection pipelines
Desalination Plants
- Seawater intake systems
- Cooling pipelines
- Pump protection systems
- Industrial water processing
Industrial Cooling Water Systems
The large-size Y Strainer can remove pipeline debris and help protect downstream equipment.
- Cooling pumps
- Heat exchangers
- Control valves
- Flow meters
Filter Screen Options
The internal filtration screen can be customized according to the process conditions and required filtration performance.
Available Screen Materials
- SS304
- SS316
- SS316L
- Duplex Stainless Steel
- Super Duplex Stainless Steel
- Nickel Aluminum Bronze
- Special Alloy Materials
Available Screen Configurations
- Perforated Screen
- Wire Mesh Screen
- Fine Mesh Screen
- Multi-Layer Filtration Screen
- Customized Filtration Screen
Screen Selection Factors
- Particle size
- Required filtration accuracy
- Pipeline flow rate
- Fluid viscosity
- Allowable pressure drop
- Downstream equipment requirements
Equipment Protected by the Y Strainer
Installing a 20 Inch C95800 Y Strainer can help protect downstream equipment from contamination and solid particles.
- Seawater Pumps
- Industrial Pumps
- Control Valves
- Ball Valves
- Butterfly Valves
- Check Valves
- Heat Exchangers
- Flow Meters
- Compressors
- Instrumentation Equipment
Installation Guidelines
1. Confirm Flow Direction
Install the Y Strainer according to the flow direction marked on the valve body.
2. Verify Flange Compatibility
Confirm the 20 Inch size, Class 150 rating, flange standard, flange facing, bolt holes, and gasket requirements.
3. Provide Pipeline Support
Large 20 Inch strainers require adequate pipeline support to prevent excessive external loads from affecting the body and flanged connections.
4. Allow Maintenance Access
Ensure sufficient clearance for screen removal, inspection, and cleaning.
5. Inspect Before Commissioning
Check the internal screen, sealing components, and flange connections before starting the system.
6. Pressurize Gradually
Introduce system pressure gradually during commissioning and inspect the strainer and pipeline connections for leakage.
Maintenance Procedure
Regular maintenance is important for maintaining reliable filtration performance.
Recommended Maintenance Steps
- Isolate the pipeline.
- Depressurize the system completely.
- Drain the trapped fluid safely.
- Confirm that the strainer is at zero pressure.
- Open the strainer according to the approved maintenance procedure.
- Remove the internal filter screen.
- Inspect the screen for debris and damage.
- Clean or replace the screen.
- Inspect gaskets and sealing surfaces.
- Reassemble the strainer.
- Perform required testing.
- Gradually return the pipeline to service.
Safety Notice: Never open a pressurized strainer. Always isolate, depressurize, drain, and confirm zero pressure before performing maintenance.
Y Type Strainer vs. Basket Strainer
| Feature | Y Type Strainer | Basket Strainer |
|---|---|---|
| Body Configuration | Y Pattern | Basket Pattern |
| Installation Space | Compact | Generally Larger |
| Filtration Area | Moderate | Generally Larger |
| Debris Capacity | Low to Moderate | Moderate to High |
| Typical Application | General Pipeline Filtration | Higher Flow Filtration |
| Maintenance | Application Dependent | Often Convenient for Frequent Cleaning |
Quality Control and Inspection
STV Valves can provide inspection and testing according to applicable standards and project requirements.
Typical Inspection Procedures
- Raw Material Verification
- Chemical Composition Testing
- Mechanical Property Testing
- PMI Testing
- Dimensional Inspection
- Visual Inspection
- Screen Inspection
- Flange Inspection
- Hydrostatic Pressure Testing
- Final Assembly Inspection
Available Documentation
- EN 10204 3.1 Material Certificate
- PMI Report
- Hydrostatic Test Report
- Dimensional Inspection Report
- Mechanical Test Report
- NDE Report
- Inspection and Test Plan
- Third-Party Inspection Report
Customization Options
STV Valves can manufacture customized C95800 Y Type Strainers according to project requirements.
Available Body Materials
- ASTM B148 C95800
- ASTM B148 C95500
- ASTM A216 WCB
- ASTM A352 LCB
- ASTM A351 CF8
- ASTM A351 CF8M
- Duplex Stainless Steel
- Super Duplex Stainless Steel
- Titanium
- Special Alloy Materials
Customization Options
- Custom Screen Mesh
- Custom Filtration Accuracy
- SS316 Screen
- Duplex Screen
- Super Duplex Screen
- Drain Connection
- Blow-Off Connection
- Pressure Gauge Connection
- Different Flange Standards
- RF or Customized Facing
- PMI Testing
- Third-Party Inspection
- Project-Specific Documentation
Why Choose STV Valves?
STV Valves manufactures and supplies industrial valves and pipeline strainers for demanding global applications.
Our Industrial Strainer Product Range
- Y Type Strainers
- Basket Strainers
- Quick Open Basket Strainers
- Duplex Basket Strainers
- T Type Strainers
- Tee Type Strainers
- Temporary Strainers
- Cone Strainers
- Custom Industrial Strainers
STV Valves Capabilities
- Customized Manufacturing
- Special Material Selection
- Large Diameter Strainers
- Custom Filtration Screens
- Pressure Testing
- PMI Testing
- NDE Inspection
- Material Certification
- Third-Party Inspection
- OEM and Project Orders
Visit STV Valves – Industrial Valve and Strainer Manufacturer
Frequently Asked Questions
What is a C95800 Y Type Strainer?
A C95800 Y Type Strainer is a mechanical pipeline filtration device manufactured from ASTM B148 C95800 Nickel Aluminum Bronze. It is designed to remove solid contaminants and protect downstream equipment.
What is C95800 material?
C95800 is a Nickel Aluminum Bronze casting alloy commonly used for marine, seawater, offshore, and compatible industrial applications requiring good corrosion resistance.
What size is a 20 Inch Y Strainer?
A 20 Inch nominal Y Type Strainer is approximately equivalent to DN500.
What does Class 150LB mean?
Class 150LB is an industrial pressure class designation. Actual allowable working pressure depends on temperature, material, flange standard, and applicable pressure-temperature ratings.
Can C95800 be used in seawater applications?
C95800 Nickel Aluminum Bronze is commonly used in compatible marine and seawater applications. Final material selection should always be confirmed according to actual operating conditions.
Can the filter screen be customized?
Yes. STV Valves can customize screen material, mesh size, perforation size, and filtration accuracy according to project requirements.
What equipment can the Y Strainer protect?
The Y Strainer can help protect pumps, valves, heat exchangers, flow meters, and other downstream equipment from solid contamination.
Can STV Valves manufacture customized 20 Inch Y Strainers?
Yes. STV Valves can manufacture customized large-diameter Y Type Strainers with different materials, screen designs, flange standards, pressure ratings, testing requirements, and inspection documentation.
Product Summary
The 20 Inch C95800 Y Strainer, Class 150LB, Flanged End is a large-diameter corrosion-resistant filtration solution for marine, seawater, offshore, desalination, and industrial water pipeline systems.
Featuring an ASTM B148 C95800 Nickel Aluminum Bronze body, 20 Inch / DN500 nominal size, Class 150LB pressure rating, flanged end connections, and removable internal filtration screen, this industrial Y Strainer provides reliable protection for critical downstream equipment.
Typical applications include:
- Marine Pipelines
- Seawater Systems
- Offshore Facilities
- Desalination Plants
- Cooling Water Systems
- Industrial Water Pipelines
- Pump Protection Systems
- Large Diameter Process Pipelines
For projects requiring a 20 Inch ASTM B148 C95800 Y Type Strainer, STV Valves can provide customized technical drawings, filtration screen specifications, material certificates, PMI reports, pressure testing, inspection reports, and third-party inspection.
Contact STV Valves for technical information and quotations.






