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2500LB LCB Y Type Strainer, 2 Inch, Flange End

2 Inch Class 2500 LCB Y Type Strainer with Flanged Ends for High-Pressure and Low-Temperature Service

The 2500LB LCB Y Type Strainer, 2 Inch (DN50), Flange End is a high-pressure industrial pipeline strainer designed to remove solid contaminants from process piping systems while protecting downstream valves, pumps, instruments, and other critical equipment.

Manufactured with ASTM A352 LCB low-temperature carbon steel, this Class 2500 Y Type Strainer combines high-pressure capability with excellent low-temperature toughness. The 2-inch flanged configuration provides a compact and reliable filtration solution for demanding oil & gas, petrochemical, LNG, cryogenic support, chemical processing, and industrial applications.

The removable filter screen captures rust, welding slag, scale, sand, pipe debris, and other mechanical particles before they enter downstream equipment. When the screen becomes contaminated, it can be removed for inspection and cleaning, helping maintain system flow and reduce maintenance costs.

STV Valves manufactures and supplies LCB Y Type Strainers and other high-pressure industrial strainers for international EPC projects, oil & gas facilities, petrochemical plants, power plants, and process industries.

Product Overview

A Y Type Strainer is a mechanical filtration device installed in a pipeline to remove unwanted solid particles from flowing media.

The 2500LB LCB Y Strainer features a compact Y-shaped body with a removable cylindrical screen. During normal operation, process fluid enters the inlet and passes through the screen. Solid particles are retained inside the filtration element while filtered fluid continues downstream.

The LCB material is particularly useful for low-temperature carbon steel applications where higher toughness is required than conventional carbon steel grades.

Caracteristici cheie

• ASTM A352 LCB low-temperature carbon steel body
• 2 Inch / DN50 nominal size
• ASME Class 2500 pressure rating
• Flanged end connection
• High-pressure construction
• Low-temperature service capability
• Removable stainless steel screen
• Compact Y-type configuration
• Easy inspection and maintenance
• Suitable for demanding industrial applications
• Custom screen and material options available

Specificatii tehnice

Important: The actual allowable working pressure and temperature must be determined according to the applicable ASME pressure-temperature rating, material specification, gasket selection, design requirements, and final project conditions.

What Is an LCB Y Type Strainer?

An LCB Y Type Strainer is a pipeline filtration device manufactured from low-temperature carbon steel.

The term LCB refers to a cast carbon steel grade specified by ASTM A352 for pressure-containing components intended for low-temperature service.

This makes LCB particularly useful for applications where the equipment must maintain suitable mechanical toughness at reduced temperatures.

The main components of a Y strainer include:

• LCB body
• Cover or bonnet
• Removable filter screen
• Screen support
• Garnitură
• Bolting
• Drain plug or drain connection

The screen captures solid particles while allowing the process fluid to continue through the pipeline.

Why Choose a 2500LB LCB Y Type Strainer?

1. Class 2500 High-Pressure Construction

The 2500LB Y Type Strainer is designed for high-pressure piping systems where a lower-pressure strainer would not provide the required pressure class.

Class 2500 equipment is commonly considered for demanding services in:

• Oil & gas
• Refining
• Petrochemical processing
• High-pressure gas systems
• Power generation
• Chemical processing

The final pressure capability must always be verified against the applicable pressure-temperature rating.

2. ASTM A352 LCB Material

The use of ASTM A352 LCB makes this strainer suitable for applications requiring low-temperature carbon steel.

LCB offers:

• Improved low-temperature toughness
• Good mechanical strength
• Reliable pressure containment
• Suitable performance in cold environments
• Good weldability when properly processed

This makes an LCB Y Strainer particularly relevant to oil & gas and low-temperature process applications.

3. Compact Y-Type Design

The Y configuration provides a compact filtration arrangement compared with many larger basket strainer designs.

Advantages include:

• Compact installation footprint
• Simple construction
• Easy screen access
• Suitable for high-pressure piping
• Relatively straightforward maintenance

4. Removable Filter Screen

The removable screen allows maintenance personnel to:

• Inspect the filter element
• Remove accumulated contaminants
• Clean the screen
• Replace damaged screens
• Restore filtration efficiency

The screen specification can be customized according to the required filtration level.

Low-Temperature Applications

One of the major advantages of the 2500LB LCB Y Type Strainer is its suitability for applications involving reduced operating temperatures.

Typical services may include:

LNG and Natural Gas

• Natural gas processing
• LNG-related piping
• Gas transmission systems
• High-pressure gas systems
• Hydrocarbon processing

Oil & Gas

• Wellhead systems
• Gas processing
• Refinery piping
• Hydrocarbon pipelines
• High-pressure process systems

Petrochimice

• Low-temperature process lines
• Hydrocarbon services
• Refrigeration-related systems
• Process equipment protection

The actual minimum design temperature must be established from the project specification and material qualification requirements.

Typical Applications

Oil & Gas Industry

The 2500LB LCB Y Strainer can be installed upstream of:

• Pumps
• Control valves
• Flow meters
• Pressure regulators
• Compressors
• Process equipment

It helps prevent solid particles from damaging sensitive components.

Petrochemical Plants

Common applications include:

• Hydrocarbon lines
• Refinery process systems
• High-pressure utility piping
• Chemical feed systems
• Equipment protection

LNG Systems

LCB is widely associated with low-temperature pressure-containing applications.

Potential applications include:

• Natural gas processing
• LNG support systems
• Hydrocarbon service
• Low-temperature process piping

For actual cryogenic service, the complete valve/strainer design must be specifically qualified for the required minimum temperature. LCB should not automatically be treated as a cryogenic material simply because it is a low-temperature carbon steel grade.

Chemical Processing

The strainer may be used for compatible:

• Process fluids
• Hydrocarbons
• Chemicals
• Solvents
• Utility fluids

Chemical compatibility should be evaluated based on concentration, temperature, pressure, and fluid composition.

Power Generation

Potential applications include:

• High-pressure utility systems
• Process water
• Fuel systems
• Auxiliary piping
• Equipment protection

Y Type Strainer Filtration Principle

The operation of the 2 Inch LCB Y Type Strainer is simple and reliable.

Step 1 — Fluid Enters

The process fluid enters the strainer through the inlet.

Step 2 — Fluid Passes Through the Screen

The fluid flows through the removable filtration element.

Step 3 — Contaminants Are Captured

Solid particles remain trapped on or inside the screen.

Step 4 — Filtered Fluid Exits

The cleaned fluid continues toward downstream equipment.

Step 5 — Screen Cleaning

When the pressure differential increases due to accumulated debris, the system can be isolated and the screen removed for cleaning.

This simple filtration mechanism requires no external power or control system.

Filter Screen Options

STV Valves can supply different screen configurations for the 2500LB LCB Y Type Strainer.

SS304 Screen

Suitable for many general industrial services.

SS316 Screen

Provides increased corrosion resistance for many process applications.

SS316L Screen

Suitable for applications requiring enhanced corrosion resistance and specific stainless steel material requirements.

Perforated Screen

Suitable for removing larger particles such as:

• Welding slag
• Rust
• Scale
• Sand
• Pipe debris

Fine Mesh Screen

Used where finer filtration is required.

The screen opening should be selected based on:

• Fluid type
• Flow rate
• Particle size
• Contamination level
• Pressure drop
• Downstream equipment requirements

Flanged End Connection

The 2 Inch 2500LB LCB Y Strainer is available with flanged ends for connection to compatible high-pressure piping systems.

The flanged design provides:

• Secure mechanical connection
• Easier removal
• Convenient maintenance
• Standardized installation
• Good suitability for high-pressure piping

For Class 2500 applications, flange dimensions, pressure-temperature ratings, gasket requirements, and bolting should be verified against the applicable piping standard and project specification.

Installation Guidelines

Correct installation is essential for safe and reliable operation.

Recommended Installation Procedure

1. Confirm the strainer size and Class 2500 pressure rating.
2. Check the flow direction marked on the body.
3. Inspect the filter screen before installation.
4. Confirm that the pipeline is properly supported.
5. Align the mating flanges without forcing the strainer into position.
6. Install a suitable high-pressure gasket.
7. Tighten flange bolts evenly according to the approved procedure.
8. Ensure sufficient clearance is available for screen removal.
9. Slowly pressurize the system.
10. Inspect all connections for leakage.
11. Monitor differential pressure during operation.

The orientation of the Y strainer should be selected according to the process fluid and manufacturer-approved installation drawing.

Maintenance

Regular maintenance helps maintain filtration efficiency and prevent excessive pressure loss.

1. Monitor Differential Pressure

A gradual increase in differential pressure normally indicates that the screen is becoming blocked by contaminants.

2. Isolate the Strainer

Close the appropriate isolation valves before performing maintenance.

3. Depressurize the Housing

Ensure that the strainer is completely depressurized before opening the cover.

4. Remove the Screen

Remove the filtration element carefully.

5. Clean the Screen

Use a cleaning method appropriate for the screen material and process contamination.

6. Inspect the Screen

Check for:

• Corrosion
• Cracks
• Broken mesh
• Deformation
• Excessive wear

7. Inspect the Gasket

Replace the gasket if it has been damaged or is unsuitable for reuse.

8. Reassemble

Install the screen and cover correctly.

9. Restart

Gradually pressurize the system and inspect the strainer for leakage.

LCB Y Strainer vs. Stainless Steel Y Strainer

Material selection depends on temperature, corrosion, pressure, and fluid conditions.

For low-temperature hydrocarbon service where corrosion is not the primary concern, LCB can provide an economical pressure-containing solution.

Optional Configurations

STV Valves can customize the 2500LB LCB Y Type Strainer according to project requirements.

Available options include:

• SS304 Screen
• SS316 Screen
• SS316L Screen
• Fine Mesh Screen
• Customized Perforation
• Drain Connection
• Drain Valve
• Vent Connection
• Differential Pressure Gauge
• Differential Pressure Indicator
• Magnetic Separator
• Special Gasket Materials
• Low-Temperature Gaskets
• NACE MR0175 / ISO 15156 Requirements
• EN 10204 3.1 Material Certificate
• Third-Party Inspection
• PMI Testing

Special materials such as F316, Duplex, Super Duplex, Titanium, and nickel alloys can also be considered for corrosive services.

Quality Control and Testing

STV Valves applies strict quality control procedures to high-pressure industrial strainers.

Typical inspection procedures include:

• Raw Material Inspection
• Chemical Composition Verification
• Mechanical Property Testing
• Positive Material Identification
• Dimensional Inspection
• Flange Inspection
• Screen Inspection
• Hydrostatic Shell Testing
• Leakage Testing
• Visual Inspection
• Final Assembly Inspection

For critical applications, STV Valves can provide:

• EN 10204 3.1 Material Certificate
• PMI Report
• Hydrostatic Test Report
• Dimensional Inspection Report
• NDE Reports
• Third-Party Inspection
• Manufacturing Quality Plan
• Inspection & Test Plan

Why Choose STV Valves?

STV Valves is a professional China manufacturer and supplier of industrial valves and pipeline strainers for global oil & gas, petrochemical, chemical, power, marine, and process industries.

Our product portfolio includes:

• Y Type Strainers
• Basket Strainers
• Duplex Basket Strainers
• T-Type Strainers
• Temporary Strainers
• Gate Valves
• Supape cu glob
• Supape cu bilă
• Supape de reținere
• Butterfly Valves
• Knife Gate Valves

Material Capabilities

STV Valves can supply strainers and valves in:

• ASTM A352 LCB
• ASTM A352 LCC
• ASTM A216 WCB
• ASTM A216 WCC
• ASTM A182 F304
• ASTM A182 F316
• ASTM A182 F316L
• ASTM A182 F321
• ASTM A182 F51
• ASTM A182 F53
• ASTM A182 F55
• Titan
• Hastelloy
• Monel
• Other nickel alloys

OEM manufacturing and project-specific customization are available.

Frequently Asked Questions

What is a 2500LB LCB Y Type Strainer?

A 2500LB LCB Y Type Strainer is a high-pressure pipeline filtration device manufactured from ASTM A352 LCB low-temperature carbon steel. It removes solid contaminants from process fluids and protects downstream equipment.

What does LCB mean?

LCB is a cast carbon steel grade specified under ASTM A352 for pressure-containing components intended for low-temperature service.

What is the size of this strainer?

This model is 2 Inch, corresponding to a nominal pipe size of approximately DN50.

What does 2500LB mean?

2500LB refers to the ASME Class 2500 pressure class. The actual allowable pressure depends on material, temperature, applicable pressure-temperature ratings, design standard, and project requirements.

Is this Y strainer suitable for low-temperature service?

Yes. ASTM A352 LCB is specifically intended for pressure-containing applications requiring suitable low-temperature toughness. The actual minimum design temperature must be confirmed for the complete product configuration.

Is LCB suitable for LNG service?

LCB can be used in certain low-temperature hydrocarbon applications, but the suitability of a specific strainer for LNG or cryogenic service must be confirmed against the required design temperature, impact testing, applicable codes, and project specification.

What material is the screen?

SS304 is a common configuration. SS316 and SS316L screens are available for applications requiring improved corrosion resistance.

Can the screen be replaced?

Yes. The removable screen can be cleaned or replaced during scheduled maintenance.

What are the advantages of a Y type strainer?

The main advantages include compact construction, simple operation, removable filtration elements, and suitability for high-pressure industrial piping.

Can STV Valves customize this strainer?

Yes. STV Valves can customize the body material, screen material, mesh size, flange standard, drain connection, gasket, inspection requirements, and documentation package.

Technical Summary

The 2500LB LCB Y Type Strainer, 2 Inch, Flange End is a high-pressure filtration solution designed for demanding industrial piping systems. Its ASTM A352 LCB construction, Class 2500 pressure rating, removable stainless steel screen, and flanged connection make it particularly suitable for high-pressure and low-temperature oil & gas, petrochemical, hydrocarbon, chemical, and industrial applications.

For projects requiring a 2 Inch Class 2500 Y Strainer, the LCB material provides a strong combination of pressure capability, low-temperature toughness, and cost-effective construction.

Contact STV Valves for a GA drawing, technical datasheet, screen specification, pressure-temperature data, material certificate, inspection plan, or customized quotation.