Product Description
Product Details of Flanged Silent Check Valve
1. Product Overview
The flanged silent check valve is a type of valve that automatically opens and closes its disc depending on the flow of the medium, preventing the backflow of the medium. Also known as a non - return valve or one - way valve, it has a noise - reducing function. This function can effectively reduce the noise generated when the fluid passes through and when the valve closes, ensuring quiet operation of the pipeline system.
2. Working Principle
The valve disc is guided by the central axis at both the inlet and outlet. When the fluid flows forward, the pressure of the medium overcomes the resistance such as the spring force to push open the valve disc, allowing the fluid to pass smoothly. When the fluid flows backward, the valve disc, under the combined action of the reverse fluid pressure and the spring force, quickly closes the sealing passage to prevent the backflow of the medium. Meanwhile, the special structural design helps to reduce noise.
3. Product Features
- Flexible Operation: Can be installed horizontally or vertically, suitable for various pipeline arrangements.
- Effective Noise Reduction: Significantly reduces fluid - related noise, creating a quiet environment.
- Water Hammer Mitigation: The spring - loaded valve disc closes quickly, reducing water hammer impact and protecting pipelines and equipment.
- Excellent Sealing: Adopts a combined sealing structure to prevent medium leakage.
- Other Advantages: Small in size, light in weight, low fluid resistance, fatigue - resistant, and long - lasting.
4. Main Technical Parameters
- Nominal Pressure: Commonly ranges from 1.0 - 1.6MPa, such as PN10 (1.0MPa) and PN16 (1.6MPa), indicating the pressure level that the valve can withstand.
- Nominal Diameter: Usually ranges from 40 - 600mm, like DN40, DN100, etc., which is the nominal diameter for connecting pipelines.
- Applicable Media: Water and weakly corrosive fluids.
- Applicable Temperature: Typically 0 - 80ºC.
- Flange Standards: Such as GB/T 17241.6, GB/T 9113, etc., specifying flange dimensions and connection types.
- Test Standards: Such as GB/T 13927, AP 1598, etc., used to test the valve's performance.
5. Main Component Materials
- Valve Body: Commonly made of cast iron, ductile iron, carbon steel, cast steel, stainless steel, etc.
- Valve Disc: Materials include bronze, chrome - stainless steel, etc.
- Valve Seat: Often made of bronze, chrome - stainless steel, etc.
- Shaft: Materials like bronze, chrome - stainless steel, etc.
- Spring: Made of stainless steel.
- Sealing Ring: Usually nitrile butadiene rubber (NBR).
6. Application Scenarios
- Building Water Supply and Drainage Systems: Installed at the outlet of water pumps, on the inlet and outlet pipes of water tanks, etc. It prevents water backflow, protects water pumps, and avoids contamination caused by water backflow in the tank. Widely used in water supply and drainage projects of residential and commercial buildings.
- HVAC Systems: In circulating water systems and cooling water systems, it prevents water backflow, ensures the normal circulation of the system, and reduces the impact of noise on the indoor environment. Applied in HVAC systems of office buildings, shopping malls, hotels, etc.
- Industrial Pipeline Systems: In process pipelines of industries such as chemical, petroleum, power, and food, it prevents medium backflow, ensures stable process flow, and reduces fluid noise interference. For example, in chemical raw material transportation pipelines and power plant circulating water pipelines.
Packaging & Shipping
Company Profile
Rooted in a legacy of excellence, Tianjin Auswell Valve Co., Ltd. proudly adheres to a multitude of international standards including those from China, Germany, Britain, America, Japan, and Australia. Our versatile range spans nominal diameters from DN15 to DN3000, pressure classes from 0.60 Mpa to 6.4 Mpa, and is capable of operating within temperatures from -20°C to 150°C. With a rich palette of materials like gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, our repertoire includes precision-crafted soft-sealed butterfly valves, soft-sealed gate valves, check valves, filters, ball valves, globe valves, balance valves, and diaphragm valves.
Driven by a relentless pursuit of perfection, Tianjin Auswell Valve Co., Ltd. has significantly bolstered its management framework in recent years to meet and anticipate our clients' needs. We've proudly garnered the prestigious ISO9001 Quality Management System Certification and the esteemed British WARS Drinking Water Certification. Our product offerings, celebrated for their reliability, have made their mark across Europe, Asia, Africa, and beyond, earning widespread acclaim and trust from our clientele. Upholding our commitment to quality, we at Auswell Valve Co., Ltd. are eager to collaborate fully with peers in the valve industry. Together, we strive to elevate Chinese craftsmanship onto the global stage.
Tianjin Auswell Valve Co., Ltd. It is nestled in a storied historical town in China, a place celebrated for its rich military legacy and famed for its rice cultivation. Industrial Park, Xiaozhan Town, Jinnan District, Tianjin. Here, our company boasts comprehensive production capabilities, from innovative product design and precise mold manufacturing to advanced machining, meticulous rubber smelting, epoxy spraying, and rigorous valve assembly and testing.
With state-of-the-art processing equipment and exquisite craftsmanship, we assure that every product aligns with national or international standards, reflecting our commitment to excellence. Our dedication to superior craftsmanship ensures that we deliver only the highest quality products to our valued customers.
Rooted in a legacy of excellence, Tianjin Auswell Valve Co., Ltd. proudly adheres to a multitude of international standards including those from China, Germany, Britain, America, Japan, and Australia. Our versatile range spans nominal diameters from DN15 to DN3000, pressure classes from 0.60 Mpa to 6.4 Mpa, and is capable of operating within temperatures from -20°C to 150°C. With a rich palette of materials like gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, our repertoire includes precision-crafted soft-sealed butterfly valves, soft-sealed gate valves, check valves, filters, ball valves, globe valves, balance valves, and diaphragm valves.
Rooted in a legacy of excellence, Tianjin Auswell Valve Co., Ltd. proudly adheres to a multitude of international standards including those from China, Germany, Britain, America, Japan, and Australia. Our versatile range spans nominal diameters from DN15 to DN3000, pressure classes from 0.60 Mpa to 6.4 Mpa, and is capable of operating within temperatures from -20°C to 150°C. With a rich palette of materials like gray cast iron, ductile iron, cast steel, stainless steel, and duplex steel, our repertoire includes precision-crafted soft-sealed butterfly valves, soft-sealed gate valves, check valves, filters, ball valves, globe valves, balance valves, and diaphragm valves.
Driven by a relentless pursuit of perfection, Tianjin Auswell Valve Co., Ltd. has significantly bolstered its management framework in recent years to meet and anticipate our clients' needs. We've proudly garnered the prestigious ISO9001 Quality Management System Certification and the esteemed British WARS Drinking Water Certification. Our product offerings, celebrated for their reliability, have made their mark across Europe, Asia, Africa, and beyond, earning widespread acclaim and trust from our clientele. Upholding our commitment to quality, we at Auswell Valve Co., Ltd. are eager to collaborate fully with peers in the valve industry. Together, we strive to elevate Chinese craftsmanship onto the global stage.
After Sales Service
Our advantage :Hoswell valve company distinguishes itself with a comprehensive set of strengths. We possess in - house independent R & D capabilities, backed by state - of - the - art processing equipment. Our manufacturing processes adhere to industry - leading standards, and we operate a rigorous quality control system.
Product Quality Assurance
Quality Commitment and Inspection: Before leaving the factory, valves need to undergo strict quality inspections, such as pressure tests, sealing tests, etc. It is ensured that there are no casting defects like sand holes or air holes in the valves, and there are no bruises or scratches on the flange sealing surfaces. The markings of flow rate, direction, nominal pressure, diameter, material, etc. are clear and complete. It is promised that the valves are produced and inspected in accordance with national standards, and unqualified products will not leave the factory.
Warranty Period Service: Provide a certain period of warranty service. During the warranty period, for malfunctions caused by product quality problems, the manufacturer will repair or replace parts free of charge.
Technical Support
Pre-sales Consultation: Before customers purchase valves, provide them with professional technical consultations, including suggestions on product selection, specification parameters, material characteristics, applicable working conditions, etc., to help customers choose the most suitable valve products.
Installation Guidance: Provide installation guidance services, which can be carried out online (such as by phone, video, installation manuals, etc.) or offline (by sending technicians to the site) to ensure that the valves are installed correctly and avoid problems caused by improper installation.
Usage Training: Provide usage training for customer operators, enabling them to be familiar with the operation methods of the valves, key maintenance points, knowledge of troubleshooting common faults, etc., and improving the customers' ability to use and maintain the valves.
Supply of Maintenance Parts: Ensure the timely supply of maintenance parts. For the damage of parts outside the warranty period, provide the parts at a reasonable price (such as the cost price).
Regular Follow-up Visits: Regularly conduct follow-up visits to customers, understand the usage situation of the valves, and collect customers' feedback opinions, so as to improve the products and services.
FAQ
1) Q: Are you a manufacturer or trading company?
A: Hoswell Valve is a professional valve manufacturer with experienced R&D team.
2) Q: Do you have any agent or representative abroad?
A: Yes, we have agents in some countries, they can offer local service for you.
3) Q: What kinds of valve can you supply?
A: We can supply butterfly valve, ball valve, check valve and so on.
4) Q: Do you have any certificate for the valves?
A: Yes, we have CE, BV, ATEX, TS and so on.
5) Q: What's the delivery time?
A: If all the parts of the valve are ready in stock, the valves can be delivered within 7~10 days.
6) Q: What are the countries or regions you supply valves?
A: Hoswell valves have been supplied to USA, Europe, Australia, Singapore, South Africa and so on.
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