High-Performance Check Valves for Industrial Pipelines | TF Valve

Ductile Iron Flange Ball Check Valve Q41X-10Q

Q41X-10Q ductile iron ball check valve is a flange mounted non-return valve with internal free-floating rubber-coated ball. Forward medium pressure lifts the ball away from the valve seat to open flow path; when fluid reverses, back pressure pushes the rubber ball tightly against seat bore to shut pipeline automatically and avoid reverse flow damage to pumps and equipment. QT450 ductile iron body brings superior toughness vs ordinary cast iron, anti-cracking under pipeline water hammer, widely used in general water & wastewater pipelines.

304/316 Stainless Steel Flange Swing Check Valve H44W-16P

H44W-16P stainless steel swing check valve is a flange-type one-way flow control valve designed for corrosive industrial pipelines. It adopts a swing disc structure that opens freely by forward fluid pressure and closes instantly by backflow pressure and disc gravity to prevent reverse flow. With full stainless steel 304 / 316 material and metal hard seal design, this valve delivers excellent anti-corrosion, high temperature resistance and zero-leakage performance, far more durable than cast iron check valves.

WCB Cast Steel Flange Lift Check Valve H41H-16C

H41H-16C Flange Lift Check Valve is a heavy-duty carbon steel metal hard-seal check valve designed for industrial pipeline systems. Adopting vertical lift structure and flange connection, this valve automatically controls unidirectional medium flow and effectively prevents fluid backflow, pipeline reverse pressure, and equipment damage. Manufactured in full compliance with national industrial standards, it features stable pressure resistance, high temperature to

Ductile Iron Wafer Double Leaf Butterfly Check Valve H76X-16Q

H76X-16Q Engineered for reliable one-way flow control in industrial pipelines, the H76X-16Q Wafer Double Leaf Butterfly Check Valve is crafted from high-grade ductile iron (DI) – offering superior strength, impact resistance, and corrosion durability compared to traditional cast iron. Its robust construction ensures long-term performance in demanding operating conditions (working pressure up to 1.6MPa, temperature range -10°C to 120°C).​ Featuring a double leaf butterfly design, the valve delivers fast response to flow changes, minimizing water hammer and ensuring tight shut-off. The wafer-type connection allows easy installation between flanges without extra space, optimizing pipeline layout efficiency. Equipped with high-quality EPDM soft seals, it achieves leak-proof performance while reducing friction, extending service life and lowering maintenance costs.​ Designed for low flow resistance, this check valve efficiently handles water, sewage, neutral liquids, and light corrosive media. It is widely applied in water supply and drainage systems, municipal engineering, HVAC, chemical plants, power stations, and industrial piping networks – ideal for preventing medium backflow and protecting equipment safety.​ Compliant with GB/T standards, the H76X-16Q valve combines rugged reliability with cost-effectiveness. Custom specifications and OEM/ODM services are available to meet specific project requirements. As a professional valve manufacturer with integrated industry-trade capabilities, we provide one-stop solutions from production to after-sales support.

Cast Steel Check Valve

304/316 Stainless Steel Wafer-type Butterfly Check Valve H76W-16P

H76W-16P wafer butterfly check valve is double-plate swing non-return valve with wafer clamping structure, installed directly sandwiched between two pipe flanges without extra mating flanges. Under forward medium pressure, two semicircular valve discs push open separately for fluid passing; once backflow happens, back pressure pushes discs close tightly to cut reverse flow automatically. Full stainless steel 304/316 construction delivers outstanding corrosion resistance for corrosive working medium. Compact thickness greatly saves installation space compared with flange check valves.