Product Description
1. General Introduction
The Handle Grooved Butterfly Valve is designed for efficient flow control in a wide range of industrial and commercial applications. It features a unique grooved connection system, which simplifies installation and maintenance processes. This valve is widely used in water supply and drainage systems, fire protection systems, HVAC systems, as well as in various industrial pipelines handling different fluids such as water, air, gas, and certain non - corrosive liquids.
2. Working Principle
The Handle Grooved Butterfly Valve operates based on a simple rotational motion. The valve consists of a circular disc (the butterfly plate) that is attached to a central shaft. When the handle is turned, it rotates the shaft, which in turn rotates the butterfly plate. When the plate is perpendicular to the flow direction of the fluid in the pipeline, the valve is in a closed position, blocking the flow. Conversely, when the plate is parallel to the flow, the valve is fully open, allowing the fluid to pass through with minimal resistance. The 90 - degree rotation of the handle between the fully open and fully closed positions provides easy and quick control over the fluid flow.
3. Structural Features
- Grooved Connection: The grooved ends of the valve are designed to connect with grooved pipes using couplings. This connection method is much faster and easier to install compared to traditional flange or threaded connections. It requires fewer tools and no welding, reducing installation time and cost. The grooves on the valve ends are precisely machined to ensure a secure and leak - tight fit with the corresponding grooves on the pipes.
- Butterfly Plate: The butterfly plate is typically made of high - quality materials such as ductile iron or stainless steel, depending on the application requirements. For applications where corrosion resistance is crucial, stainless - steel plates are preferred. In some cases, the plate may be coated with materials like EPDM (ethylene - propylene - diene - monomer) or polyurethane to improve its sealing performance and resistance to wear and tear. The plate has a streamlined shape to minimize flow resistance when the valve is open.
- Valve Body: The valve body is constructed from robust materials, usually ductile iron or cast steel. Ductile iron offers good strength and corrosion resistance at a relatively low cost, making it suitable for general - purpose applications. Cast steel is used in more demanding situations where higher pressure and temperature ratings are required. The body has a smooth inner surface to promote laminar flow of the fluid and reduce the formation of deposits or turbulence.
- Sealing System: A reliable sealing system is crucial for the proper functioning of the Handle Grooved Butterfly Valve. The most common sealing material is EPDM, which provides excellent sealing performance, flexibility, and resistance to a wide range of fluids and temperatures. The EPDM seal is typically installed around the circumference of the butterfly plate or on the valve seat. In some high - pressure or high - temperature applications, more advanced sealing materials such as PTFE (polytetrafluoroethylene) or metal - to - metal seals may be used. The sealing system ensures that there is no leakage when the valve is in the closed position, even under high - pressure differentials.
- Handle and Shaft: The handle is ergonomically designed for easy operation. It is usually made of cast iron or aluminum alloy and is attached to the shaft that runs through the center of the valve body. The shaft is made of stainless steel to prevent corrosion and ensure smooth rotation. The handle can be rotated through a 90 - degree arc, and in some models, it may have markings or detents to indicate the position of the valve (open, closed, or partially open).
4. Technical Specifications
- Nominal Diameter: Available in a wide range of sizes, typically from DN50 (2 inches) to DN600 (24 inches). Common sizes include DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600. The choice of nominal diameter depends on the flow rate requirements of the pipeline system.
- Nominal Pressure: Standard pressure ratings are PN10 (10 bar), PN16 (16 bar), and PN25 (25 bar). These pressure ratings indicate the maximum allowable working pressure of the valve under specific temperature conditions. Higher - pressure models may be available for applications in high - pressure pipelines, such as in some industrial processes or power plants.
- Working Temperature: The working temperature range of the Handle Grooved Butterfly Valve depends on the materials used. With EPDM seals, the typical temperature range is from - 20°C to + 80°C. For applications with higher temperature requirements, valves with PTFE seals or metal - to - metal seals can be used, which can withstand temperatures up to 200°C or even higher in some cases.
- Flow Coefficient (Cv): The flow coefficient is a measure of the valve's ability to pass fluid. It varies depending on the size and design of the valve. Generally, larger - diameter valves and valves with a more streamlined design have higher Cv values, indicating better flow - through capabilities. The Cv value can be used to calculate the expected flow rate through the valve under different pressure differentials.
5. Material Selection
- Valve Body Material:
- Ductile Iron: Widely used due to its good combination of strength, toughness, and corrosion resistance. It is suitable for most general - purpose applications in water, wastewater, and low - pressure industrial pipelines. Ductile iron valves are relatively cost - effective and can be easily cast into complex shapes.
- Cast Steel: Offers higher strength and better performance at elevated pressures and temperatures. Cast steel valves are often used in industrial applications where the pipeline system is subjected to more severe operating conditions, such as in the oil and gas industry, chemical plants, and power generation facilities.
- Butterfly Plate Material:
- Ductile Iron: Commonly used in combination with a corrosion - resistant coating or lining. Ductile iron plates are cost - effective and provide sufficient strength for most applications. The coating or lining can enhance the plate's resistance to corrosion and wear, especially when handling aggressive fluids.
- Stainless Steel: Preferred for applications where high - level corrosion resistance is required. Stainless - steel plates are suitable for handling fluids such as acidic or alkaline solutions, seawater, and certain chemicals. They offer excellent durability and can withstand harsh environments without significant degradation.
- Sealing Material:
- EPDM: A popular choice for its excellent sealing properties, flexibility, and resistance to water, steam, and many common fluids. EPDM seals can withstand a wide temperature range and are relatively inexpensive. They are suitable for general - purpose applications in water supply and drainage systems, HVAC systems, and some industrial processes.
- PTFE: Known for its high chemical resistance, low friction coefficient, and ability to withstand high temperatures. PTFE seals are often used in applications where the fluid is highly corrosive or at elevated temperatures. However, PTFE is more expensive than EPDM and may require more careful installation due to its relatively low flexibility.
- Metal - to - Metal Seals: Used in high - pressure and high - temperature applications where the highest level of sealing integrity is required. Metal - to - metal seals can withstand extreme conditions and provide a long - lasting, leak - tight seal. They are typically made of materials such as stainless steel or nickel - based alloys.
6. Installation and Maintenance
Installation
- Pipe Preparation: The grooved ends of the pipes must be properly prepared before installing the valve. This involves ensuring that the grooves are clean, free from burrs, and of the correct dimensions. The pipes should also be aligned properly to ensure a smooth connection with the valve.
- Valve Installation: Place the Handle Grooved Butterfly Valve between the two grooved pipes. Insert the coupling into the grooves on the valve ends and the pipes. Tighten the bolts on the coupling evenly to secure the valve in place. Make sure that the valve is installed in the correct orientation, with the handle in a position that is easily accessible for operation.
- Testing: After installation, the valve and the pipeline system should be tested for leaks. This can be done by pressurizing the system with water or air and checking for any signs of leakage around the valve connections or the valve body.
Maintenance
- Regular Inspection: Periodically inspect the valve for signs of wear, corrosion, or damage. Check the handle for ease of operation, the shaft for smooth rotation, and the sealing surfaces for any signs of leakage. Look for any visible signs of corrosion on the valve body, butterfly plate, or other components.
- Lubrication: Lubricate the shaft and the moving parts of the handle regularly to ensure smooth operation. Use a suitable lubricant that is compatible with the materials of the valve and the fluids being handled.
- Seal Replacement: If the seal shows signs of wear or damage and is causing leakage, it should be replaced. To replace the seal, carefully disassemble the valve, remove the old seal, and install a new one. Make sure that the new seal is of the correct type and size and is installed correctly.
- Cleaning: Clean the valve periodically to remove any deposits or debris that may have accumulated inside the valve body or on the butterfly plate. This can be done using a suitable cleaning agent and a soft brush. Avoid using abrasive cleaners that may damage the valve surfaces.
7. Applications
- Water Supply and Drainage Systems: Handle Grooved Butterfly Valves are widely used in municipal water supply networks to control the flow of water to different areas. They are also used in wastewater treatment plants to regulate the flow of sewage and effluent. In residential and commercial buildings, these valves are used in plumbing systems to control the flow of water to various fixtures.
- Fire Protection Systems: These valves play a crucial role in fire protection systems. They are used to control the flow of water to sprinkler systems, ensuring that water is delivered quickly and efficiently in the event of a fire. The grooved connection system allows for easy installation in fire - rated pipelines.
- HVAC Systems: In heating, ventilation, and air - conditioning systems, Handle Grooved Butterfly Valves are used to control the flow of air, water, or refrigerant. They can be used to regulate the temperature and humidity in buildings by controlling the flow of the heating or cooling medium.
- Industrial Applications: In industries such as chemical, food and beverage, oil and gas, and manufacturing, these valves are used to control the flow of various fluids. For example, in a chemical plant, they may be used to control the flow of raw materials or finished products in pipelines. In a food and beverage factory, they can be used to control the flow of water, ingredients, or product du
Certifications
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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