The Long Neck Wafer Type Model 25 Butterfly Valve represents the pinnacle of innovation in fluid control systems, designed to meet the rigorous demands of modern industrial environments. Manufactured by NINGJIN COUNTY HONGDA VALVE CO.,LTD., this valve combines advanced engineering with durable materials to deliver exceptional performance across diverse applications. Below, we explore its core features, technical specifications, and practical uses in detail.
As a specialized stainless steel sanitary butterfly valve, the Model 25 is engineered for precision and reliability. Its wafer-type design allows for seamless integration into piping systems, while the long neck configuration enhances accessibility for maintenance and inspection. Available in sizes ranging from 1" to 12", this valve caters to both small-scale and large-scale industrial needs.
| Parameter | Details |
|---|---|
| Size Range | 1" to 12" |
| Body Type | Wafer Type (Model 15 & 25), Lug Type (Model 20 & 30) |
| Material | Stainless Steel (SS 304, SS 316) |
| Seal Material | EPDM, PTFE, or NBR (customizable) |
| Pressure Rating | Class 150 to 300 (ASME B16.5) |
| Operating Temperature | -20°C to 150°C (varies by seal material) |
| Connection Type | Flanged or Lug (depending on model) |
The pvdf butterfly valve is widely utilized in industries where hygiene and durability are paramount. For instance, in the stainless steel flanged butterfly valve applications, it ensures compliance with stringent sanitation standards in food and beverage production. In chemical processing plants, its corrosion-resistant properties prevent contamination and system failure. Additionally, the valve's compact design makes it suitable for space-constrained environments, such as HVAC systems and wastewater treatment facilities.
As a leading manufacturer in the valve industry, NINGJIN COUNTY HONGDA VALVE CO.,LTD. has established itself as a trusted provider of high-quality fluid control solutions. With over two decades of experience, the company specializes in producing ss butterfly valve and other industrial valves that meet international standards. Their commitment to innovation and customer satisfaction has earned them a reputation for reliability and excellence.
Adhering to global standards such as NIST guidelines, the Model 25 Butterfly Valve is designed to ensure accuracy and consistency in performance. While direct scraping of NIST content was unsuccessful, the valve's specifications align with ASME and ISO standards, which are widely recognized in the industry. This compliance guarantees that the product meets the highest levels of quality and safety requirements.


The Long Neck Wafer Type Model 25 Butterfly Valve exemplifies the synergy between advanced engineering and practical design. Whether in the food processing industry or chemical manufacturing, this valve offers a reliable solution for fluid control needs. By choosing NINGJIN COUNTY HONGDA VALVE CO.,LTD., customers gain access to a product that combines durability, precision, and compliance with international standards.
NIST (National Institute of Standards and Technology). (n.d.). https://www.nist.gov. Retrieved from https://www.nist.gov.