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The Q341 Stainless Steel Worm Gear Flanged Ball Valve is designed for high-performance industrial applications requiring precise flow control, corrosion resistance, and durability. Manufactured from high-quality stainless steel materials (e.g., CF8, CF8M), this valve provides excellent resistance to corrosion, making it ideal for demanding environments such as oil & gas, petrochemical, and water treatment industries.
Equipped with a worm gear operator, the valve offers precise control and ease of operation, even under high-pressure conditions. The flanged connection ensures a secure and leak-proof installation, while the soft sealing design minimizes leakage and enhances reliability.
Available in sizes ranging from DN15 to DN300 and pressure ratings up to PN40, this valve is suitable for a wide range of applications. Its compliance with international standards such as API 608 and ASME B16.34 ensures superior quality and reliable performance in critical operations.
Whether for manual or automated operation, the Q341 Stainless Steel Worm Gear Flanged Ball Valve is the ideal choice for industries that demand efficiency, precision, and long-term reliability.
- High-Quality Stainless Steel Construction: Made from durable stainless steel materials (e.g., CF8, CF8M), ensuring excellent resistance to corrosion and high mechanical strength.
- Worm Gear Operation: Provides precise control and ease of operation for large or high-pressure valves.
- Flanged Connection: Designed for secure and leak-proof installation in pipeline systems.
- Soft Sealing Design: Incorporates soft sealing materials like PTFE or RPTFE, ensuring reliable sealing and minimal leakage.
- Versatile Applications: Ideal for industries such as oil & gas, petrochemical, and water treatment where reliable flow control is critical.
- Wide Operating Range: Suitable for temperatures ranging from -29°C to 200°C and pressures up to PN40.
- Compact and Robust Design: Engineered to save space while offering excellent durability and performance.
- International Standards Compliance: Designed and tested to comply with API 608, ASME B16.34, and other global standards for safety and quality.
Application Fields:
Oil and natural gas pipelines;
Water treatment projects;
Chemical and industrial gas transportation;
Thermal and heating systems.
Main Component Materials
| Parameter | Details |
| Model | Q341 |
| Material | Stainless Steel (CF8, CF8M, CF3, CF3M) |
| Structure | Worm Gear Operated Flanged Ball Valve |
| Size Range | DN15 - DN300 (1/2" - 12") |
| Pressure Rating | PN16 - PN40 (Class 150 - Class 300) |
| Connection Type | Flange (RF, RTJ) |
| Design Standard | API 608, ASME B16.34, GB/T 12237 |
| Face-to-Face Standard | ASME B16.10, GB/T 12221 |
| Flange Standard | ASME B16.5, DIN EN1092-1, JIS B2220 |
| Testing Standard | API 598, ISO 5208 |
| Temperature Range | -29°C to 200°C (-20°F to 392°F) |
| Operation Method | Worm Gear Operated |
| Seat Material | PTFE, RPTFE, PEEK |
| Application | Oil & Gas, Petrochemical, Water Treatment, Power Plants, etc. |
DN Dimensions Table
| DN (mm) | NPS (in) | L (Face-to-Face) | D (Flange Diameter) | d (Ball Bore) | H (Height) | W (Worm Gear Width) | PN (Pressure Rating) |
| 15 | 1/2" | 108 | 95 | 15 | 180 | 200 | PN16 / PN40 |
| 20 | 3/4" | 117 | 105 | 20 | 185 | 200 | PN16 / PN40 |
| 25 | 1" | 127 | 115 | 25 | 190 | 220 | PN16 / PN40 |
| 40 | 1-1/2" | 165 | 150 | 38 | 220 | 240 | PN16 / PN40 |
| 50 | 2" | 178 | 165 | 50 | 235 | 260 | PN16 / PN40 |
| 65 | 2-1/2" | 190 | 185 | 65 | 280 | 300 | PN16 / PN40 |
| 80 | 3" | 203 | 200 | 80 | 290 | 320 | PN16 / PN40 |
| 100 | 4" | 229 | 220 | 100 | 330 | 360 | PN16 / PN40 |
| 150 | 6" | 267 | 285 | 150 | 400 | 400 | PN16 / PN40 |
| 200 | 8" | 292 | 340 | 200 | 450 | 480 | PN16 / PN40 |
| 250 | 10" | 330 | 405 | 250 | 520 | 520 | PN16 / PN40 |
| 300 | 12" | 356 | 460 | 300 | 580 | 600 | PN16 / PN40 |
| Q: Can we visit your factory to inspect the products in person? |
| A: Of course, you are welcome to visit. Our products are built to withstand scrutiny, and we are very happy to have you here. We look forward to establishing a long-term trade partnership with you! |
| Q: Can you customize the products according to the specifications and appearance I require? |
| A: Yes, we can adjust our production lines to meet your required specifications and product appearance, including color. |
| Q: What if there is no Chinese translator when we visit the factory? |
| A: We will hire relevant translators based on your language needs to ensure smooth and efficient communication. |
| Q: What market share do your products occupy in China? |
| A: From 2021 to 2024, our company's annual turnover ranged from 50 million to 100 million RMB, capturing a large share of the Chinese market. |
| Q: What are your competitive advantages compared to other companies in the industry? |
| A: Brand reputation. Our company does not compete on price, but rather on quality. We invest substantial funds into production materials, advanced equipment, and skilled technicians, focusing on building a strong brand image and a positive company reputation, rather than engaging in price competition. |
Quality (Shandong) Industrial Automation Co., Ltd. is located in Zibo City, Shandong Province, China, an area rich in cultural heritage, with a strong industrial foundation and a high level of production concentration. We are a high-tech valve manufacturing enterprise integrating design and development, manufacturing and installation, sales and service, technical communication, and international trade.
Based on conventional valves, the company actively applies new technologies, materials, and processes to research and manufacture various high-end valves, as well as general high and medium-pressure gate valves, globe valves, check valves, ball valves, etc. All products are designed, manufactured, and processed according to standards such as GB, ANSI, API, JIS, DIN, and BS. Additionally, we are capable of researching, designing, and developing high-performance special valves and non-standard products based on customer needs.
Our products are widely used in industries such as petroleum, chemical engineering, metallurgy, and power generation, and are suitable for various complex working conditions such as high temperature, high pressure, sulfur resistance, corrosion resistance, and erosion resistance.
