Bolted Cover
Aarya Sales supplies bolted cover check valves in India, designed for reliable backflow prevention in industrial systems. These valves feature a heavy-duty bolted cover construction and an internally mounted disc assembly, ensuring strength, durability, and dependable performance.
Investment Casting Non Return Valve Class 150 Swing Type Bolted Cover
Investment Casting Non Return Valve Class 300 Swing Type Bolted Cover
Non Return Valve Class 125 Swing Type Bolted Cover
These unidirectional valves allow flow in one direction while preventing reverse flow, making them ideal for medium-velocity applications. Sourced from trusted manufacturers, they are suitable for handling water, oil, gas, and other industrial media, offering long service life and efficient operation.
Bolted Cover Check Valve Supplier in India — Aarya Sales
Bolted cover check valves have a body cover secured with bolts rather than a screwed cap, allowing internals (disc, hinge pin, seat) to be inspected or serviced without cutting the valve out of the pipeline. Aarya Sales supplies bolted cover swing check valves in sizes 50 NB to 600 NB, Class 150# to Class 600#, in Class 150# and Class 300# bolted-cover configurations.
Materials: Cast Iron, Carbon Steel (A216 WCB), Stainless Steel (CF8/CF8M). Standards: API 594, BS 1868, IS 5312. Preferred for larger-bore check valves in power, water, and process piping where periodic internal maintenance is expected.
Frequently Asked Questions
A bolted cover check valve has its top cover attached with a bolted flange joint rather than a screwed cap, allowing the cover to be removed for inspection or repair of the disc, hinge, and seat without disturbing the valve's connection to the pipeline — important for larger, higher-pressure check valves that need periodic servicing.
We supply bolted cover swing check valves from 50 NB to 600 NB, in Class 150# and Class 300# bolted-cover configurations, in Cast Iron, Carbon Steel, and Stainless Steel.
Bolted covers are standard on larger-bore and higher-pressure check valves where the cover joint needs to withstand higher forces and where periodic in-line maintenance (disc/seat inspection) is expected — screwed covers are typically limited to smaller, lower-pressure valves.
API 594 (wafer and short-pattern check valves), BS 1868, and IS 5312, with testing per API 598 and full material test certificates available on request.