China Flanged Swing Check Valves Factory

Bonnet material

Carbon steel

Temperature Range


Size Range


Body Materials

Carbon steel

Product Description

Flange swing check valves, also known as dual plate check valves, embody the synergy of functionality and complexity in fluid management applications with their eloquent design and precision engineering.

Product Parameters

Size RangeDN15~DN600
Temperature Range-25~450℃
Body MaterialsCarbon steel
Bonnet materialCarbon steel
Disc materialCarbon steel
Stem materialStainless steel
Hard surface material seat, API internals


Features and advantages

Rugged construction ensures safety in the appropriate pressure temperature range. Can provide flange and butt two connections.

The bonnet does not require removal of the valve from the line, allowing access to the maintenance hinge and disc.

The valve flap is closed by its own weight to prevent the backflow of the fluid to form a sufficiently large flow rate to avoid damaging impact.

Through the balance valve and the “wing” structure, the head loss (or head loss) is reduced to the minimum extent.

Shorter stroke, combined with the advantages of the balance valve, the valve closed more quickly, to minimize the impact of the phenomenon.

Because of the small gap on the pivot pin, a funnel tight seat seal can be achieved throughout the pressure range to ensure the integrity of the valve seat seal between the disc ring and the valve body.

TWT Company is a leader in dual plate check valve manufacturers. Under the glorious background of China’s manufacturing industry, TWT has become a leading enterprise in the field of double-plate check valve manufacturing with its excellent craftsmanship and innovative spirit.