We have upgraded the design of our Basket Strainers and Filters and added UL and cUL Certification to it.
These can be specified for Strainer applications from 20 mesh to 200 mesh, and can be specified for Filter applications to 5 Micron.
Single and Dual Cast Iron Basket Strainers, and Filters, certified and listed to UL 331 & ULC/ORD-C331, Strainers for Flammable Fluids and Anhydrous Ammonia
CSA-B140.0, Oil-Burning Equipment: General Requirements.
Strainers are rated to pressures of 150 psi, and have casing temperature rating of + 2000F. The temperature rating is significant in that it eliminates any requirement for a Fire Safety Valve in application where it is used, as it is in compliance with 5.1.1 of B139.1.0-15 (Except as provided in Clause 5.1.2, the external parts of the body of a fuel-containing device, component, or accessory installed in the fuel supply system to an appliance from a tank shall have a melting point of not less than 538 °C (1000°F).