Fully Welded Flange Ball Valve DN15-DN500 20# Body 304 Ball Steel Heating

Product Usage

Experience the unmatched reliability of Fully Welded Ball Valves with integral welded valve bodies, designed to prevent external leakage effectively. These valves outshine ordinary cast steel ball valves with their superior quality and high performance stability. With a service life significantly longer than cast steel ball valves, they are indispensable across city gas and heating sectors, petrochemical industries, shipbuilding, steel manufacturing, pressure regulating stations, power plants, and numerous other pipeline applications.
Available in a variety of colors including blue, yellow, grey, and black, these welded ball valves offer versatile transmission methods such as handle, worm gear, pneumatic, and electric.

Construction Characteristics

• Crafted with a fully welded housing;
• Featuring a trunnion mounted ball;
• Equipped with spring-loaded seat rings;
• Available with metallic or soft seals;
• Offers a Double Block and Bleed version;
• Available in both full and reduced bore;
• Provides flanged, welded, or threaded connections;
• Boasts a blow-out proof shaft;
• Shaft seals are replaceable under full pressure, in both open and closed positions;
• Designed to prevent static charging;
• Features maintenance-free bearings;

Applicable Standards

• Design & Manufacturing adheres to: API 6D/ ISO 14313, ASME B16.34
• Connection Dimensions comply with: ASME B16.25, DIN EN 12627
• Fire Resistance Design meets: API 607/ISO 10497
• Inspection & Testing conforms to: API 6D, ISO 5208, API 598
• Material aligns with: ISO 15156

Performance Excellence of Fully Welded Ball Valves

1. Engineered for no maintenance, adjustment, or lubrication, these valves are easy to install and ensure reliable long-term operation with low running costs. The surface, treated with advanced spraying technology, is both lustrous and beautiful, positioning it as a leader in the Chinese market.
2. The plastic-sprayed surface ensures a stunning lustre, leading the market in China. The welded valve body construction means there is no external leakage, making the valve lightweight and easy to insulate.
3. The operating handle is designed for easy removal and reinstallation in different directions.
4. The valve seat combines a carbon fiber reinforced PTFE seal ring with a disc spring, providing excellent adaptability to pressure and temperature changes, ensuring no leakage within the marked pressure and temperature ranges.
5. The seal ring and disc spring composition ensures high adaptability to pressure and temperature changes, preventing any leakage within the specified ranges.
6. Utilizing advanced computerized testing, the ball processing achieves high precision, ensuring superior performance.
7. With valve body material identical to the pipe material, there are no uneven stresses, no deformation from seismic activity or heavy vehicles, and the pipe remains resistant to aging.
8. The integral fully welded design includes equal and variable diameter channels, fixed and floating balls, a double piston effect sealing system, and automatic injected sealant type bearings.
9. To prevent static electricity, steel balls and springs are integrated between the stem and ball and between the stem and stuffing box, ensuring all parts remain conductive and allow current to pass, thereby releasing static electricity. This not only prevents fire and corrosion but also enables temporary cut-off for timely maintenance.
10. The stem's anti-disengagement feature is designed to counter the disengagement force generated by internal valve pressure, ensuring the stem remains securely in place.
11. Our valves feature a low-friction material thrust washer that ensures effortless pressure application against the stem, transforming the stem into a reliable torque transmitter, enhancing performance and longevity.

1. City Gas Networks: Ideal for gas output pipelines, main lines, and various branch supply pipelines, ensuring seamless and safe gas distribution.
2. Central Heating Systems: Perfect for large heating equipment output pipelines, main lines, and branch lines, guaranteeing efficient and consistent heating.
3. Heat Exchangers: Designed for the effective opening and closing of pipelines and various circuits, offering superior control and reliability.
4. Steel Plants: Essential for managing various fluid pipelines, selective waste gas discharge pipelines, gas and heat supply pipelines, and fuel supply pipelines, optimizing plant operations.
5. Versatile Industrial Equipment: Suitable for diverse heat treatment pipelines, industrial gas, and heat pipelines, ensuring high performance in all industrial applications.

Main Dimensions

*** Valve Group, a pioneer since 1972, excels in the specialized domain of fully welded ball valves. With an unwavering dedication to excellence, we offer unparalleled advantages: swift delivery, uncompromised product quality, assured project timelines, competitive pricing, and a vast, cutting-edge manufacturing facility. Every product is meticulously tested to meet stringent standards before it reaches you. Our promise is further fortified by exceptional post-sales service, establishing us as the trusted leader in the industry.

Q: How long is the product warranty?
A: *** Valve Group proudly offers a comprehensive 12-month warranty. During this period, we cover replacement or repair services for any issues not caused by human factors, ensuring your peace of mind.

Q: Are wholesale discounts available?
A: Yes, wholesale discounts are indeed available for bulk orders of our valves. These discounts are typically tied to the purchase quantity. For more detailed information, feel free to reach out to our customer service team or email us directly.

Q: Does it support customized valve needs?
A: Absolutely, we provide custom valve services tailored to meet your specific requirements. To explore our customization options, processes, and pricing, please consult our customer service department or contact us directly.

Q: How is your price?
A: Despite offering top-brand products, our prices remain highly competitive and favorable. This attractive pricing, combined with our quality, draws customers from around the globe to purchase from us.

Q: Are you a trading company or manufacturer?
A: We are a manufacturer, equipped with our own factory.

Q: How do you proceed with orders?
A: Our order process begins with providing a quotation. Upon price confirmation, we move to the next step of supplying samples for your approval. Once the samples are confirmed, we proceed with mass production.

Q: Can I request to change the form of packaging and transportation?
A: Yes, we can accommodate changes to packaging and transportation as per your request. However, additional costs and any incurred differences during this period will be borne by you.

Q: Is the delivery time fast?
A: Our delivery times are impressively fast! Beyond ensuring superior quality, one of our key strengths is our quick order turnaround. At *** Valve Group, we maintain large warehouses stocked with various sizes (DN15 to DN300) and flange standards (JIS, GB, ANSI, and DIN). This extensive inventory allows us to deliver orders typically within 4 to 5 days, ensuring your projects stay on track without delays. By choosing ***, you benefit from the best raw materials, beautiful products, secure packaging, rigorous testing, and, above all, prompt delivery times. Trust *** for unparalleled reliability!

Q: Where is the location of your factory?
A: *** Valve Group operates 4 factories, with our headquarters located in Zhengzhou Xingyang. Our facilities include the Zhengzhou Water Valve Factory, Zhengzhou Casting Workshop, and a factory in Wenzhou.

Q: Who should we contact if there is an after-sale problem?
A: For any post-sale issues, please contact our official customer service team who will promptly assist you in resolving the problem.

Q: How many years has your company been established?
A: Our factory boasts over 50 years of production experience. Additionally, *** International Sales Company was established 8 years ago, reinforcing our long-standing industry presence.