Fabricated strainers Y | Conaco

Welded Y-Strainers Conaco Type 797

Conaco Type 797 are fabricated Y-type strainers designed for industrial pipelines with large diameters or special piping specifications. Typical installation points include upstream of pumps, control valves, turbines, flow meters, and process equipment where retention of rust, weld slag, debris, or other solids is required.

Design Range

• Type: fabricated Y-strainer.
• ANSI rating: Class 150 to Class 2500.
• Sizes: 2″ to 60″ and above, custom-built as required.
• Connections: special flanges or clamp connections per project specification.

Materials

Available in carbon steel, low carbon steel, alloy steel, high alloy steel, and special alloys. Material selection should be based on piping class, operating temperature, media corrosivity, weldability, and any NACE or certification requirements.

Screen and Cleaning Options

Screens can be supplied in double or triple layer, mesh on perforated plate, or mesh-on-mesh. Magnetic assemblies are available for ferrous particle retention. Drain connections with nipples, flanges, valves, or plugs, as well as vent and DP gauge ports, can be specified.

Body Linings and Protection

For aggressive service, options include epoxy lining, cladding, rubberizing, and project-specific coating systems. These are considered for corrosive media, marine environments, water treatment, chemical processes, or where additional body protection is required.

Selection in Industrial Installations

Selection is not based solely on diameter. ANSI class, flow rate, clean/dirty pressure drop, screen open area, cover accessibility, and isolation procedures must be evaluated. For pump suction, increased Δp due to clogging must be checked against available NPSH.

FAQ

When is a fabricated Y-strainer selected over cast?
For large diameters, special materials, non-standard flanges, or constructions not covered by standard cast bodies.

Can it be fitted with an actuator?
No. It is a passive in-line filter.

When is a DP gauge required?
When cleaning is based on measured differential pressure rather than fixed maintenance intervals.