Shanghai avic valve co.,LTD. specializes in producing various specifications and models of medium and high pressure valves. It is a modern enterprise integrating scientific research and development, design, manufacturing, sales and services. The company is located in Jinshan District, Shanghai, covering an area of over 11800 square meters. It currently has a production workshop of over 7000 square meters and an office building of 2080 square meters. The company also has a team of highly qualified technicians, researchers, and managers. The company has three major production centers for forged valves, cast valves, and special valves. The company has established a CAD valve design center and a 3D simulation manufacturing test design system to ensure the quality and speed of new product development. The company has also set up a comprehensive quality assurance system.
Adhering to the principle that "quality is the source of an enterprise", we have adopted and introduced advanced technology and equipment, as well as outstanding talents, to produce various types of valve products, in accordance with international ISO, American APIANSI, British BS, German DIN, French NF, Japanese JIS, Chinese GB, and JB standards. Nominal diameter: 1/4 "-40" (DN6-1000); Nominal pressure level: 150Lb~2500Lb (1.0MPa~42MPa); Working temperature: -20~425 ℃. Production valve varieties: gate valve, globe valve, ball valve, check valve, knife gate valve, butterfly valve; Valve body materials include ductile iron, carbon steel, alloy steel, stainless steel, ultra-low carbon stainless steel titanium, Monel, 20 alloy, etc.
Our company's products have a long history, complete varieties, diverse scales, and stable and reliable quality. They are widely used in industrial fields such as petroleum, chemical, power station, mining, metallurgy, light industry, food, international scientific research, and equipment matching and single machine matching. They are also exported for foreign aid. Welcome domestic and foreign manufacturers to choose widely, and warmly invite customers to our company for guidance and negotiation.

Product Overview:
Our company has introduced European high-tech valve manufacturing technology to produce elastic seat seal gate valves. By utilizing the compensating effect of elastic deformation generated by the overall rubber coating of the gate plate, we achieve good sealing effect and overcome the problems of poor sealing, water leakage, and rust in general gate valves. It can be widely used as a regulator and shut-off device on fluid pipelines such as tap water, sewage, construction, petroleum, chemical, food, medicine, textiles, electricity, ships, metallurgy, energy systems, etc.

Product features:
1. Lightweight: This valve is made of resin sand shaped ductile iron material, which has high strength, low load capacity, and a weight reduction of about 20%~30% compared to traditional gate valves. It is easy to install and maintain.
2. Flat bottomed valve seat: Traditional gate valves usually have recessed valve seats, which increase fluid resistance and are prone to accumulation of welding slag, stones, mud, and other debris, which is not conducive to sealing and flow surface. The elastic seat seal gate valve produced by our company adopts a flat bottomed full basin straight through design, which is equivalent to a straight pipeline and is not easy to accumulate debris, ensuring reliable sealing and unobstructed fluid flow.
3. Valve disc overall rubber coating: The valve disc is made of high-quality rubber for internal and external rubber coating. The first-class rubber vulcanization technology in Europe ensures precise geometric dimensions of the vulcanized valve, and the rubber is firmly attached to the ductile iron valve disc, which is not easy to fall off and has good elastic memory.
4. Corrosion resistance: The inner and outer surfaces of the valve body are coated with powder epoxy resin, and the internal components are made of stainless steel or copper alloy, which can prevent corrosion and rust of the valve body and can be used in harsh environments such as sewage systems and underground.
5. "O" ring seal: Due to the use of three "0" ring seal designs in the valve body, it can reduce frictional resistance during opening and closing, significantly reduce water leakage, and allow for uninterrupted construction and replacement of seals.

Product Overview:
Soft sealed butterfly valves are commonly used in food, pharmaceutical, chemical, petroleum, power, textile, papermaking and other water supply and drainage, gas pipelines with temperature ≤ 120 ℃ and nominal pressure ≤ 1.6MPa to regulate flow and cut off fluids.

The main features are:
1. Novel and reasonable design, unique structure, light weight, and quick opening and closing.
2. Small operating torque, easy to operate, labor-saving and agile.
3. Can be installed in any position, easy to maintain.
4. The seals can be replaced, and the sealing performance is reliable, achieving bi-directional sealing with zero leakage.
5. Sealing materials have the characteristics of aging resistance, corrosion resistance, and long service life.

General purpose valves refer to valve types widely used in various industrial fields, which have multiple functions and characteristics and are suitable for different fluid transport systems.
The main functions of a universal valve include shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief, etc. It can change the cross-section of the passage and the direction of medium flow, thereby controlling parameters such as fluid direction, pressure and flow rate.