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Shanghai Jianggong Valve Manufacturing Co., Ltd.
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Your Professional & Reliable Partner.
Shanghai Jianggong Valve Manufacturing Co., Ltd. is a professional manufacturer and supplier for industrial valve products, we are specialized in production and sales of all kinds of valve products, which is widely used in petroleum, chemical, metallurgy, paper, medicine, food, coal, municipal drinking water and water supply,, construction, fire fighting and other fields, we also provide supporting engineering services for home and abroad markets.Relying on strong talents, technology, equipment, ...
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Year Established

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Million+
Employees

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Million+
Customers Served

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Million+
Annual Sales
China Shanghai Jianggong Valve Manufacturing Co., Ltd. HIGH QUALITY
Trust Seal, Credit Check, RoSH and Supplier Capability Assessment. company has strictly quality control system and professional test lab.
China Shanghai Jianggong Valve Manufacturing Co., Ltd. DEVELOPMENT
Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.
China Shanghai Jianggong Valve Manufacturing Co., Ltd. MANUFACTURING
Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.
China Shanghai Jianggong Valve Manufacturing Co., Ltd. 100% SERVICE
Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

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Valve process engineering plan
Valve process engineering plan   The valve process engineering plan refers to the comprehensive planning and arrangement of the manufacturing, processing, inspection, quality control, and other aspects of the valve to ensure the quality and effectiveness of the valve. Here is an example of a valve process technology solution for reference: 1. Process flow design   1). Material preparation: Select suitable valve materials based on the working environment, medium characteristics, and other requirements of the valve, and carry out material procurement, incoming inspection, and other work. 2). Parts processing: Process the valve body, valve core, valve cover and other components according to the valve drawings and design requirements. Processing techniques include forging, casting, heat treatment, mechanical processing, etc. 3). Valve assembly: Assemble the processed components according to the drawing requirements. The assembly process includes lubrication, clearance adjustment, and installation of sealing gaskets. 4). Coating treatment: According to the working environment requirements of the valve, select suitable coating materials to treat the surface of the valve to prevent corrosion, wear, etc. 5). Testing and Inspection: The assembled valve must undergo strict testing and inspection. Including airtightness testing, sealing testing, pressure resistance testing, etc.   2. Quality Control 1). Material control: Strictly control the quality of valve materials purchased, including material inspection, tracking of material qualification certificates, etc. 2). Processing control: During the part processing, strictly follow the process requirements to avoid processing errors and quality problems. 3). Assembly control: During the valve assembly process, strict process checks and inspections must be carried out to ensure the correct assembly of valve parts and compliance with quality requirements. 4). Test control: Scientific and standardized design and operation of the test process to ensure the authenticity and accuracy of the test results, and provide reliable basis for the use of valves, 5). Audit and acceptance: Regularly inspect and audit various records and processes in the production process to ensure the correct execution of the process flow and the effectiveness of quality control.   3. Safety protection measures 1). Operators should receive necessary safety training, master relevant operating procedures and protective measures, and ensure personnel safety. 2). The workplace must comply with relevant safety requirements to prevent accidents such as fires, explosions, and poisoning. 3). Use appropriate labor protection equipment, such as gloves, goggles, protective clothing, etc., to ensure safety Protecting the physical safety of workers 4). Pay attention to the safe storage and use of valve materials to prevent the risk of fire, explosion, and other hazards. 5). Establish a sound accident emergency plan and firefighting and rescue measures to respond to the occurrence of emergencies.   4. Environmental protection measures 1). Treat exhaust gas and wastewater to avoid polluting the surrounding environment. 2). Reasonably use energy and resources, reduce waste, and improve resource utilization efficiency. 3). Classify and dispose of waste in a legal and environmentally friendly manner, 4). Carry out environmental monitoring work, monitor changes in the surrounding environment, and take timely measures to prevent environmental pollution.   The above is an example of a valve process technology solution. The process plan for different valves may vary, and specific adjustments and designs need to be made according to the actual situation.
Safety Relief Valve VS Pressure Reducing Valve
The difference between safety valve and pressure reducing valve   We often wonder about the functional differences between pressure reducing valves and safety valves. Acctually, both of them can regulate pipeline pressure, but the differences are very significant. Therefore, they must be used correctly to ensure the safety of pipelines and equipment. The main differences between safety valves and pressure reducing valves lie in their functional purpose, working principle, working state, application scenarios, structural types, installation requirements, and maintenance and inspection. ‌   1. Functional purpose: Safety valves are mainly used for overpressure protection to prevent equipment damage due to excessive pressure; The pressure reducing valve is used to reduce pressure and maintain stable outlet pressure.   2. Working principle: The safety valve releases pressure by opening and closing the valve disc, usually opening when the pressure exceeds the set value; The pressure reducing valve adjusts the pressure by changing the throttling area and is usually in an open state, working continuously. 3. Working state: The safety valve is usually in the closed state and only opens when the pressure exceeds the set value; The pressure reducing valve is usually in the open state and continues to work.   4. Application scenario: Safety valves are suitable for equipment that requires overpressure protection, such as boilers, pressure vessels, compressors, etc; Pressure reducing valves are suitable for systems that require stable pressure output, such as residential water supply, industrial process control, etc. 5. Structural types: Safety valves include spring type, lever type, and pulse type, etc; Pressure reducing valves come in diaphragm, spring, and piston types. 6. Installation requirements: Safety valves usually need to be installed vertically and have unobstructed outlets; Pressure reducing valves usually need to be installed horizontally and ensure no resistance downstream. 7. Maintenance and Inspection: Safety valves require regular pressure testing and sealing checks to ensure they can function properly in emergency situations; Pressure reducing valves require regular inspection and maintenance to ensure the accuracy of pressure regulation.

2024

10/18

Forged steel valve and Cast Steel valve products differrence
Forged steel valve and Cast Steel valve products differrence   Forged steel valves and cast steel valves are two common types of industrial valves, which have significant differences in manufacturing processes, material properties, scope of use, price, and applicable scenarios. Here are their main differences:   1. Manufacturing process: Forged steel valves are manufactured by heating the metal to the deformation temperature and then forging it. This process rearranges and strengthens the metal grains, thereby improving the performance of the material. Cast steel valves are manufactured by melting, pouring, and cooling, with a relatively simple process.   2. Material properties: The structure of forged steel valves is more uniform, with finer grains, thus possessing better toughness and impact resistance. This characteristic makes forged steel valves more stable and reliable when subjected to pressure, impact, and vibration. The structure of cast steel valves is relatively dense, with high strength and hardness, but relatively low toughness.   3. Scope of use: Forged steel valves are suitable for high temperature and high pressure, small-diameter valves, and industrial fields with high requirements, such as petroleum, chemical, metallurgy, etc. Cast steel valves are suitable for large and medium-sized valves with lower temperature and its working temperature not exceeding 425 ℃.   4. Price: Forged steel valves are relatively expensive due to their complex manufacturing process and superior material properties. Cast steel valves are more competitive in some situations where cost control is required due to their relatively simple manufacturing process and lower cost.   5. Applicable scenarios: Forged steel valves are commonly used in critical equipment or high-pressure fluid control systems due to their excellent performance. Cast steel valves are suitable for producing complex shaped parts due to their good fluidity and formability.   The selection of suitable valve materials needs to be judged based on specific usage requirements. In practical applications, the appropriate valve type should be selected based on specific needs and scenarios. For example, in situations where high strength and toughness are required, such as high-pressure fluid control or critical equipment, forged steel valves may be a better choice; When it comes to producing parts with complex shapes and good fluidity, cast steel valves have more advantages.

2024

11/08

The correct position and importance of ball valve installation
The correct position and importance of ball valve installation   The installation position of ball valves should be determined according to specific application scenarios, taking into account factors such as ease of operation, safety, fluid flow direction, and pipeline layout. The correct installation position can ensure the optimal performance of the ball valve and guarantee the normal operation of the pipeline system.   Ball valves, as a commonly used fluid control device, are widely used in industrial production, domestic water, heating systems, and other fields. The correct selection of the installation position for ball valves not only affects the effectiveness of their use, but also has a crucial impact on the stability and safety of the entire pipeline system.   1. Consider the convenience of operation When installing a ball valve, the first consideration is the ease of operation. Generally speaking, ball valves should be installed in a location that is easy for operators to observe and operate. For example, there should be sufficient space next to the valve for operators to perform switch operations, inspections, and maintenance. At the same time, the operating handle or actuator of the ball valve should be located in a convenient position to avoid difficulties in operation due to space limitations.   2. Ensure safety Safety is an important consideration when choosing the installation location for ball valves. Ball valves should be installed in locations that are not affected by mechanical damage, chemical corrosion, or high temperatures to prevent damage or performance degradation due to environmental factors. In addition, the installation position of the ball valve should also comply with safety regulations, such as avoiding installation in places that are easily impacted or frequently passed by personnel to prevent accidents from occurring.   3. Consider fluid flow direction and pipeline layout The installation position of ball valves also needs to consider fluid flow direction and pipeline layout. Generally speaking, ball valves should be installed on horizontal pipelines to facilitate smooth fluid flow. In special circumstances, if it is necessary to install on a vertical pipeline, it should be ensured that the ball valve can withstand fluid pressure to prevent damage to the ball valve due to fluid impact. In addition, the installation position of ball valves should be coordinated with the pipeline layout, minimizing the use of bends, joints, and other parts of the pipeline that are prone to fluid resistance, in order to improve the operational efficiency of the pipeline system.     In summary, the selection of the installation location for ball valves requires comprehensive consideration of factors such as ease of operation, safety, fluid flow direction, and pipeline layout. The correct installation position can ensure the optimal performance of the ball valve and guarantee the normal operation of the pipeline system. In practical applications, we should flexibly choose the installation position of ball valves according to specific situations to ensure the safe, stable, and economical operation of pipeline systems.  

2024

10/18