Class – 300#

Hawa Engineers. Manufacturer Suppliers as well as Exporter of Swing Type Check Valves and Lift Type Check Valves. These NRV Non Return Valves are actually Bolted Cover Design, with Straight Type Body with Flanged ends and Screwed Ends.

A Class 300 check valve with a bolted cover is a pressure-rated valve engineered to prevent backflow, adhering to standards such as API 600 or BS 1868. Its primary features include a Class 300 pressure rating, typically around 740 psi at \(100\degree F\) for steel, though specific test pressures depend on the material and manufacturer. The valve incorporates a bolted cover for ease of assembly and features connection flanges designed in compliance with ASME B16.5. These valves are available in various materials, including cast steel (WCB) and forged steel, and can be found in different configurations, such as swing or piston lift types.