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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.
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.
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
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.
Z81X-16Q A high-performance shut-off valve engineered for industrial and municipal piping systems, the Z81X-16Q Manual Grooved Stem Soft Seal Gate Valve is constructed with premium ductile iron (DI) – boasting exceptional tensile strength, impact resistance, and corrosion resistance, far outperforming traditional cast iron valves in durability and service life. Featuring a grooved stem design combined with soft seal technology, this gate valve ensures tight shut-off and zero leakage. The EPDM soft seal seat and gate provide excellent sealing performance, while reducing friction during operation for smooth, labor-saving manual control. The grooved connection enables quick, tool-free installation and disassembly, significantly improving on-site construction efficiency and lowering maintenance costs. Designed to handle working pressures up to 1.6MPa and temperatures ranging from -10°C to 120°C, the valve is suitable for water supply and drainage, heating, HVAC, fire protection, municipal engineering, and industrial pipeline systems. It efficiently controls the flow of water, sewage, and neutral liquids, preventing medium leakage and ensuring system stability. Compliant with national and international standards (GB/T), the Z81X-16Q valve integrates rugged construction with user-friendly design. Its compact structure saves installation space, while the ductile iron body resists wear, corrosion, and harsh operating conditions. As a professional valve manufacturer with integrated industry-trade capabilities, we offer custom specifications, OEM/ODM services, and one-stop solutions from production to after-sales support to meet diverse project needs.
This cast steel lug butterfly valve adopts high-quality cast steel body with solid structure, high pressure resistance and outstanding durability. It is fitted with manual worm gear operation, featuring stable transmission, labor-saving opening and closing, and precise flow regulation. Lug type connection allows easy installation, disassembly and flange mounting on pipelines. Equipped with EPDM rubber seat, it delivers excellent sealing performance, zero leakage, good heat resistance, ageing resistance and corrosion resistance. Compact design, low flow resistance and reliable sealing performance. Widely used in water supply, drainage, chemical, petroleum, HVAC and industrial piping systems for medium cut-off and throttling control. Custom specifications are available to meet different project working conditions.
LT-D71F4-16P This lug-type butterfly valve is constructed of premium 304 stainless steel body and disc, featuring excellent corrosion resistance, oxidation resistance and long service life. Equipped with manual lever handle for easy on-off operation, simple structure, flexible switch and labor-saving control. Lug connection design enables easy installation and maintenance, suitable for pipeline end mounting. Adopts high-performance PTFE seat seal, achieving zero leakage, high temperature resistance and wear resistance. Low flow resistance, light weight and compact structure. Widely applied in water treatment, chemical, food, pharmaceutical, HVAC and general industrial piping, ideal for cutting off and regulating various mediums. We support customization and provide one-stop valve solutions.
D941X-16P This electric flange butterfly valve is made of high-quality stainless steel 304/316, featuring excellent corrosion resistance, high temperature resistance and long service life. Equipped with a durable electric actuator, it realizes automatic opening, closing and flow regulation, with stable operation, quick response and simple maintenance. Flange connection ensures firm installation, tight sealing and zero leakage.
Foshan Tangzheng Pipe Fittings Co., Ltd. provides premium gate, globe, ball & control valves for petrochemical, power & HVAC industries. 30+ years expertise, 18-month warranty, 24/7 technical support. Request a custom solution today.
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