Products

Valve accessories refer to the parts or components to which the valve is assembled; or the parts or components to be re-installed after being damaged. Valve fittings can be divided into two types: standard fittings and optional fittings. Standard fittings refer to the auxiliary parts provided at random. Optional fittings refer to the parts that can enhance product functions and improve product performance in addition to the standard configuration.

The center of rotation of the butterfly plate of the flange butterfly valve (ie the center of the valve stem) is located on the center line of the valve body and the sealing surface section of the butterfly plate. The valve seat is made of synthetic rubber. When closed, the outer circular sealing surface of the butterfly plate squeezes the synthetic rubber valve seat, which makes the valve seat elastically deformed and forms an elastic force as the sealing pressure to ensure the sealing of the butterfly valve. Well-known domestic manufacturers include Shanghai Quangong Valve Equipment Co., Ltd. and Hunan Xinxing Hydropower Equipment Co., Ltd. Its company is a designated management and production enterprise by the Ministry of Machinery Industry, the Ministry of Chemical Industry, and China National Chemical Equipment Corporation. Its products have certain price advantages and technical advantages in the industry.

The driving mode of the lug butterfly valve can be manual, worm gear, pneumatic, electric, hydraulic. The connection method can choose flange and wafer, the structure can choose single eccentric, center line, double eccentric, triple eccentric, and the sealing structure can choose soft seal or hard seal. The pressure range is PN0.1-10Mpa, the nominal diameter is DN40～2000mm, and the material can be cast steel or stainless steel. Due to the wide range of use of valves, the same valve has different combinations in different occasions and working conditions.

The butterfly valve plate of the wafer type butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0°-90°. When the rotation reaches 90°, the valve is fully opened. This valve is generally installed horizontally. The wafer butterfly valve is simple in structure, small in size and light in weight, and consists of only a few parts. Moreover, it can be opened and closed quickly by rotating 90°, and the operation is simple. At the same time, the valve has good fluid control characteristics.

This Wafer Type Dual Plate Check Valve is expertly engineered to efficiently prevent medium backflow in industrial pipeline systems. It features an advanced dual-plate and internal spring-loaded mechanism: the plates open automatically with forward fluid pressure and are instantly forced closed by the springs when flow stops or reverses. This rapid closure effectively minimizes water hammer and protects downstream pumps and equipment. Compared to traditional flanged check valves, its compact and lightweight wafer design significantly reduces installation footprint and allows for both horizontal and vertical mounting. Available in Cast Iron, Ductile Iron, Stainless Steel, and Bronze with NBR or EPDM seats, it is widely utilized in water supply, fire protection, shipbuilding, and water treatment applications to ensure safe network operation.

Built for harsh offshore and shipyard applications, this specialized valve casting provides a highly durable foundation for your fluid control assemblies. Poured from top-tier C954 and C958 aluminum bronze, the bare body naturally combats galvanic corrosion and chloride pitting, making it far superior to standard iron in brine and seawater environments.   To accelerate your factory production timeline, we deliver these lugged bodies fully processed. The side ears feature precisely tapped threads to support safe pipeline isolation, while the internal bore is CNC-machined to house soft seat liners perfectly. With a standardized top pad included, OEM brands can attach their own drive mechanisms immediately upon delivery without any secondary machining.

This Double Flange Stainless Steel Valve Body is specifically engineered for high-intensity industrial fluid control systems. Manufactured from premium-grade stainless steel, it delivers exceptional corrosion resistance and structural strength.   Its unique double-flange design not only ensures ultimate stability and vibration resistance in pipeline connections but also allows for convenient inline maintenance without the need to dismantle the entire piping network. Equipped with a standard ISO 5211 mounting pad, it perfectly supports the seamless integration of pneumatic or electric actuators. Widely utilized in demanding environments such as petrochemicals, shipbuilding, water treatment, and metallurgy, this valve body is the ideal solution for achieving precise flow regulation and zero leakage.

The Lug Type Stainless Steel Butterfly Valve Body is engineered specifically for OEM valve manufacturers and industrial assembly facilities. Manufactured from premium investment-cast stainless steel alloys including CF8, CF8M, and Duplex, this bare body provides exceptional structural strength and chemical resistance for harsh environments.   Each valve body is delivered fully CNC machined to exact tolerances, ensuring a seamless fit for custom internal components like seats, discs, and stems. Featuring precise threaded lug inserts for safe dead-end service and a standard ISO 5211 mounting pad, it offers a reliable, assembly-ready foundation for building high-performance fluid control systems.

The Semi Lug Type Stainless Steel Valve Body offers a smart, space-saving solution for industrial fluid control. By incorporating strategically placed alignment lugs, it guarantees quick and accurate installation while maintaining a much lighter profile than traditional flanged valves. Manufactured from premium CF8, CF8M stainless steel, it provides outstanding corrosion resistance. Integrated with an ISO 5211 mounting pad for effortless actuator automation, this valve body is highly recommended for space-restricted applications in marine, petrochemical, and municipal water systems.

This premium Stainless Steel Butterfly Valve Disc (available in 1.4408 austenitic, as well as 1.4462 and 1.4469 duplex/super duplex grades) is engineered to meet varying levels of corrosion resistance and pressure demands across diverse industries. Featuring a precision-machined and polished streamlined surface, it effectively minimizes flow resistance, prevents medium buildup, and pairs seamlessly with EPDM, NBR, and PTFE seats. Whether applied in generally corrosive environments like food and pharma (1.4408), high-chlorine marine and petrochemical scenarios (1.4462), or extreme acid and high-pressure conditions (1.4469), this disc series guarantees exceptional structural strength and long-lasting, leak-proof performance.

The Wafer Type Stainless Steel Butterfly Valve Body is designed for high-volume OEM assembly lines, offering a highly compact and lightweight casting solution. Manufactured from premium CF8, CF8M, and Duplex stainless steel, this bare body provides excellent corrosion resistance for HVAC, sanitary processing, and light chemical distribution networks.   Delivered fully CNC-machined, the body features smooth universal centering holes that accommodate multiple international flange standards (ANSI, DIN, JIS) simultaneously. Equipped with a standard ISO 5211 mounting pad, it ensures rapid and cost-effective actuator integration for bulk valve manufacturing.

This premium Stainless Steel Valve Disc is a core component for concentric butterfly valves. Available in CF8 (304), CF8M (316), CF3 (304L), and CF3M (316L), it offers an excellent balance of corrosion resistance, structural strength, and cost-effectiveness. The precision-polished, streamlined surface significantly minimizes flow resistance and prevents medium buildup. Capable of operating in a wide temperature range from cryogenic up to 450°C, it is widely utilized in water treatment, HVAC, chemical processing, and shipbuilding industries to fulfill various corrosion-resistance and weldability requirements.