Product Description
Basic Information
Desulfurization - specific pinless butterfly valves feature a pinless connection between the valve disc and stem (to avoid pitting corrosion). The valve body is either rubber - lined or electrostatically coated with epoxy resin (to isolate corrosion). A floating seat design ensures zero leakage. Nominal diameters range from DN50 to DN1500, and actuation options include worm - gear, electric, or pneumatic drives.
- Structure: Consists of a valve body, disc, soft-seal seat, valve stem, and worm gear actuator. The disc rotates 90° around its axis to open/close or regulate flow.
II. Core Technical Parameters
| Parameter |
Typical Range (varies by manufacturer) |
| Nominal Diameter |
DN50 - DN1200 (some brands cover up to DN1000) |
| Nominal Pressure |
PN 0.6 - 1.6 MPa (suits low-to-medium-pressure systems) |
| Operating Temperature |
≤120°C (varies by seal material; e.g., EPDM up to 150°C, PTFE ≤200°C) |
| Applicable Media |
Water, air, sewage, oils, food-grade fluids, gas, etc. (match seal material) |
III. Component Material Options
| Component |
Optional Materials |
Key Features |
| Valve Body |
Ductile Iron, 304/316 Stainless Steel, Cast Steel |
Ductile iron: cost-effective; Stainless steel: corrosion-resistant |
| Disc |
Cast Steel, 304 Stainless Steel, Rubber/PTFE-lined (for harsh media) |
Stainless steel: ideal for corrosive fluids |
| Seal Ring |
NBR (oil-resistant, ≤80°C), EPDM (heat-resistant ≤120°C), Viton (corrosion-resistant ≤180°C), PTFE (≤200°C) |
Determines temperature and chemical resistance |
| Valve Stem |
2Cr13 Stainless Steel, 304 Stainless Steel |
Rust-resistant, high strength |
| Packing |
O-rings, Flexible Graphite |
Auxiliary seal, wear-resistant |
IV. Performance Advantages
- Efficient Operation: Worm gear drive reduces operating torque and enables 90° quick opening/closing. Available with manual, pneumatic, or electric actuation (customizable).
- Reliable Sealing: The soft-seal seat uses a floating design, tightening as it closes for bidirectional zero leakage. Seals are replaceable for media adaptation.
- Compact Design: Lightweight and space-saving; flanged connection allows easy vertical/horizontal installation (no flow direction restriction).
- Precise Control: Flow characteristics approach a linear curve, offering better regulation than standard butterfly valves.
- Durability: Seal materials resist aging and corrosion; valve bodies are often painted (by some brands) for rust protection and long service life.
V. Applications
Widely used in water supply/drainage, HVAC, fire protection, wastewater treatment, food processing, pharmaceuticals, power, and metallurgy as a flow on/off or regulation device.
VI. Installation & Maintenance
- Installation: Align flange bolt holes; no flow direction limitation (bidirectional seal). Reserve maintenance access space.
- Maintenance: Regularly lubricate the worm gear and clean debris. Replace aged or leaking seats/seals as needed.
Note: Specific parameters (e.g., maximum diameter, material options) follow the manufacturer's specs. Always match seal/body materials to media, temperature, and pressure conditions.
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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