Product Description
I. Structural Features & Core Characteristics
-
Connection Type
- Flanged connection (compliant with standards like GB/T 9113, ANSI). Bolt holes are symmetrically arranged for easy alignment, enabling quick integration into piping systems.
-
Sealing Mechanism
- Soft - Seal Design: The valve body is lined with elastomers (e.g., EPDM, NBR, PTFE). As the disc rotates, it compresses the elastic seal, achieving near - zero leakage (typically meeting or exceeding Class A of GB/T 13927).
- Centric Geometry: The disc's center aligns with the flow path center, minimizing flow resistance (lower Kv than gate/globe valves) and reducing actuation torque for energy efficiency.
-
Component Materials
- Valve Body: Usually ductile iron (QT450 - 10) or cast steel, with anti - corrosion coatings (e.g., blue epoxy paint in the image) for durability.
- Disc: Stainless steel (304/316) or hardened carbon steel, resisting corrosion and wear for long - term use.
- Stem: Stainless steel (2Cr13 or 304), connecting the disc to the actuator (manual, electric, or pneumatic) with reliable torque transmission.
II. Technical Parameters
| Parameter |
Typical Range |
| Nominal Diameter (DN) |
DN50 - DN1200 (larger sizes available per manufacturer) |
| Nominal Pressure (PN) |
PN0.6, PN1.0, PN1.6 MPa (for medium - low pressure; upgrade to hard - seal for high pressure) |
| Temperature Range |
Depends on seal material:
- EPDM: -40ºC to 120ºC
- NBR: -20ºC to 80ºC (oil - resistant)
- PTFE: -100ºC to 180ºC (corrosion - resistant) |
| Applicable Media |
Clean media (water, sewage, air, natural gas, weak acids/bases; avoid abrasive particles) |
| Leakage Class |
Zero leakage (meets GB/T 13927 or API 598 standards) |
III. Working Principle
The valve stem rotates the disc through 0°-90°:
- Fully Closed: The disc presses tightly against the elastomeric seal (rubber deforms to compensate for tolerances), blocking flow.
- Fully Open: The disc aligns with the flow path, maximizing flow area and minimizing resistance.
- Throttling: Rotation angle correlates with linear flow control (approximate equal - percentage characteristic for precise regulation).
IV. Application Scenarios
- Municipal Engineering: Water supply/drainage networks, sewage treatment (sedimentation tank inflow/outflow, sludge transfer).
- HVAC Systems: Chilled water circuits, fire protection pipelines (fast actuation + low leakage).
- Light Industry: Food/beverage (sanitary EPDM seals), pharmaceuticals, textiles (clean fluid handling).
- Environmental Projects: Waste gas treatment, desulfurization/denitrification systems (corrosion - resistant seals for mild chemicals).
V. Installation & Maintenance
Installation Tips
- Verify the flow direction arrow (optional for some models, but recommended to extend seal life).
- Tighten flange bolts symmetrically in stages to prevent valve body distortion.
- Mount the stem vertically or horizontally (per actuator type) for smooth operation.
Maintenance Recommendations
- Regularly clean debris from the valve cavity (prevents disc jamming).
- Lubricate the stem (e.g., grease) to avoid rust and seizing.
- Inspect the seal surface frequently (especially for abrasive media); replace worn seals promptly.
VI. Advantages & Limitations
Advantages
- Compact and lightweight (up to 50% lighter than same - size gate valves), reducing installation costs.
- Fast actuation (90° rotation for manual operation), compatible with electric/pneumatic actuators.
- Ultra - low leakage (ideal for food, fire protection, and tight - seal applications).
Limitations
- Soft seals fail under high temperature (>150ºC), high pressure (>2.5MPa), or abrasive media (e.g., slurry, ore pulp, which scratch rubber).
- Frequent throttling accelerates seal aging, requiring periodic replacement.
For customized parameters (e.g., manufacturer - specific models, specialty materials) or project - tailored solutions, contact us for further details!
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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