Product Description
I. Product Definition and Structure
The wafer - type butterfly valve is a valve in which the closing member is a disc - shaped butterfly plate and can rotate around the axis inside the valve body. It adopts a wafer - type structure, that is, there is no independent flange on the valve body. It is clamped between the flanges at both ends of the pipeline by bolts and fixed through the valve body. The basic structure includes components such as the valve body, valve cover, clamping device, valve stem, valve seat, and sealing ring. The valve body and valve cover are commonly made of materials such as cast iron, steel, stainless steel, aluminum alloy, and plastic; the valve seat materials include polytetrafluoroethylene, rubber, metal, etc.; and the sealing ring can be divided into seat rings and sealing rings.
II. Working Principle
The fluid is opened and closed by rotating the butterfly plate. The butterfly plate rotates around the axis in the valve body, with a rotation angle ranging from 0° to 90°. When it rotates to 90°, the valve is fully open, and the medium flow is controlled by changing the deflection angle of the butterfly plate. When closing, the clamping device presses the valve cover to make the valve seat and the sealing ring seal; when opening, the valve stem lifts and rotates the valve cover to separate the valve seat, the sealing ring from the valve stem.
III. Performance Parameters
- Nominal Diameter: Commonly DN32 - DN2000mm.
- Nominal Pressure: Mostly PN1.0 - 1.6Mpa, and there are also other pressure ratings.
- Applicable Temperature: Different materials have different applicable temperatures. For example, the wafer - type butterfly valve with rubber seal is generally ≤120ºC; carbon steel material is -29ºC~425ºC; stainless steel material is -40ºC~600ºC.
- Applicable Media: Water, steam, oil products, acid - and alkali - corrosive media, gas, semi - fluids, and solid powders, etc.
IV. Product Features
- Structure and Installation: Simple and compact structure, small volume, and light weight. The wafer - type connection is adopted, with a short axial length and small installation space requirements, but the loading and unloading are relatively troublesome. Some types (such as lug - type butterfly valves, which are a type of wafer - type butterfly valve) are more flexible in connection and use.
- Operating Performance: Small operating torque, can be quickly opened and closed with a 90° rotation, labor - saving and light - weight, facilitating frequent operation.
- Sealing Performance: Reliable sealing. The soft - sealing type can achieve zero leakage. Some adopt sealing structures such as triple - offset, with little wear between the valve seat and the butterfly plate, and have the sealing function of getting tighter when closed.
- Materials and Service Life: Can be manufactured with a variety of materials. For example, the valve body can be made of cast iron, ductile iron, cast steel, stainless steel, etc.; the butterfly plate can be made of cast iron, nylon, stainless steel, etc.; the valve seat lining can be made of NBR, EPDM, PTFE, etc. It can adapt to different media and working conditions, and some sealing rings and other components are corrosion - resistant and wear - resistant, with a long service life.
- Flow Regulation: The flow characteristic is approximately an inclined straight line, with good regulation performance, which can effectively control the medium flow.
V. Driving Modes
- Manual: Operated by a handle or handwheel, simple and straightforward, suitable for small - diameter valves and occasions with infrequent operation.
- Electric: Driven by an electric actuator, it can be remotely controlled and automated, and is used in larger - diameter valves or systems that require centralized control.
- Pneumatic: Powered by compressed air and driven by a pneumatic actuator to rotate the valve stem. It moves quickly and is often used in environments where the opening and closing speed is required or in dangerous environments such as flammable and explosive areas. There are also other driving modes such as hydraulic.
VI. Application Fields
It is widely used in pipeline systems of industries such as chemical, petroleum, electric power, pharmaceutical, food, paper - making, hydropower, shipbuilding, water supply and drainage, smelting, and energy, for cutting off or regulating fluid flow, and also has good application effects in environmental protection projects, sewage treatment, etc.
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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