Class - 300#
Aarya Sales supplies a wide range of Class 300 check valves (NRV) in India, available in swing type and lift type designs for effective backflow prevention in industrial systems. These valves feature a bolted cover construction with straight body design and are offered with flanged and screwed end connections to suit various installation requirements.
Investment Casting Non Return Valve Class 300 Swing Type Bolted Cover
Designed in accordance with standards such as API 600 / BS 1868 and ASME B16.5, Class 300 check valves are suitable for moderate to high-pressure applications. They operate automatically, allowing flow in one direction and closing instantly when flow reverses, ensuring system safety and efficiency.
These valves are available in materials such as cast steel (WCB), forged steel, and other alloys, making them suitable for handling water, oil, gas, steam, and other industrial media. Aarya Sales ensures quality supply, reliable performance, and durable solutions for diverse industrial applications.
Class 300 Bolted Cover Check Valve Supplier in India — Aarya Sales
Class 300 bolted cover check valves are rated to ANSI/ASME Class 300# pressure-temperature limits, suited to higher-pressure process, steam, and refinery piping. Aarya Sales supplies Class 300 bolted cover swing check valves in sizes 50 NB to 600 NB in Carbon Steel and Stainless Steel, with flanged end connections per ASME B16.5.
Frequently Asked Questions
It's a swing check valve rated to ANSI Class 300#, with a bolted (removable) cover for internal maintenance access. Suited to higher-pressure process, steam, and refinery piping where Class 150# isn't sufficient.
For Carbon Steel (A216 WCB) at ambient temperature, Class 300 is rated to roughly 51 bar (740 psi), dropping as operating temperature rises — always confirm against the ASME B16.34 pressure-temperature table for your exact material and temperature.
We supply Class 300 bolted cover check valves from 50 NB to 600 NB in Carbon Steel (A216 WCB) and Stainless Steel (CF8/CF8M), with ASME B16.5 flanged ends.
Class selection should match your line's actual design pressure and temperature, as specified in your piping class — see our Class 150 vs Class 300 comparison guide for a full breakdown before deciding.