Product Description
Product Overview
The worm - gear wafer - type butterfly valve is a kind of butterfly valve. It is driven by a worm - gear device and is connected in a wafer - type manner, which means it is installed between two flanges. It is used to cut off or regulate the flow of fluid media by rotating the butterfly plate through the worm - gear device.
Product Features
- Structure and Operation
- Compact structure, small size and light weight, facilitating installation.
- The worm - gear drive makes operation labor - saving and quick - opening/closing. It only needs to rotate the valve stem by 90° to complete the opening and closing action, and is not affected by the high or low pressure of the medium.
- Sealing Performance
- Special sealing structure and materials are adopted to ensure excellent sealing performance and effectively prevent medium leakage. For example, in some products, a precision elastic sealing ring makes three - dimensional eccentric contact with the butterfly plate, solving the sliding friction problem of the sealing surface of traditional butterfly valves. It realizes the separation of the sealing surface at the moment of opening and achieves sealing when closed, thus extending the service life. Sealing ring materials include stainless steel, polytetrafluoroethylene, etc., which have good sealing performance in high - temperature and low - temperature environments.
- Durability
- The sealing surface of the butterfly plate is often surfacing - welded with cobalt - based hard alloy, which is wear - resistant. The valve seat and the butterfly plate have little wear, and the overall service life is long.
- Installation Flexibility
- It has bi - directional sealing, so the installation is not restricted by the flow direction of the medium or the spatial position. It can be installed in any direction, and the driving device can be installed in multiple positions (rotated by 90° or 180°).
- Wide Application Range
- It can adapt to a variety of working conditions. Some products are resistant to high temperature, low temperature and corrosion, and can be used in different media and harsh working environments.
Main Technical Parameters
- Nominal Diameter (DN): Common range is DN50 - DN2000. Some products cover DN50 - DN1200, etc.
- Nominal Pressure: Such as 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa, etc.
- Sealing Test Pressure: Corresponding to the nominal pressure. For example, when the nominal pressure is 0.6MPa, the sealing test pressure is 0.66MPa; when it is 1.0MPa, it is 1.1MPa, etc.
- Strength Test Pressure: For example, when the nominal pressure is 0.6MPa, the strength test pressure is 0.9MPa; when it is 1.0MPa, it is 1.5MPa, etc.
- Applicable Temperature: For carbon steel materials, it is - 29ºC - 425ºC; for stainless steel materials, it is - 40ºC - 650ºC. Different products may vary, and some can reach - 40ºC - 600ºC, etc.
- Applicable Media: Water, air, natural gas, oil products, steam and weakly corrosive fluids. Some products are also suitable for acid - based corrosive media, etc.
- Leakage Rate: In line with relevant standards such as GB/T13927 - 92.
Main Parts Materials
- Valve Body: Commonly used materials include WCB, alloy steel, stainless steel, QT450 - 10, cast iron, ductile iron, etc. Some products use chromium - molybdenum steel, etc.
- Butterfly Plate: WCB, alloy steel, stainless steel, QT450 - 10, cast steel, etc. Some are chrome - plated, or carbon steel is completely coated with rubber or fluoroplastic.
- Valve Shaft: 2Cr13 stainless steel, alloy steel, 1Cr13 stainless steel, chromium - molybdenum steel. Some are carbon steel nickel - phosphorus - plated.
- Sealing Ring: Stainless steel ring, natural rubber (NR), neoprene (CR), nitrile - butadiene rubber (NBR), ethylene - propylene - diene monomer rubber (EPDM), fluororubber (FKM), polytetrafluoroethylene, etc.
- Packing: Flexible graphite.
Adopted Standards
- Manufacturing Standard: Such as JB/T8527 - 97, etc.
- Flange Standard: GB9113 - 2000, etc.
- Structural Length Standard: GB12221 - 89, etc.
- Inspection Standard: GB/T13927 - 92, etc.
Main Dimensions of External Shape and Connection
For different nominal diameters, there are corresponding dimensions of length (L), height (H, H1), as well as flange dimensions and bolt specifications. For example, when the nominal diameter is DN50, L is 43mm, etc. (Specifically, it varies according to different pressure ratings and product models).
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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