High-Performance Butterfly Valves with Zero Leakage
Specialized in butterfly valve manufacturing for over 30 years. NSEN delivers unmatched quality, durability, and bidirectional sealing performance trusted globally since 1983.
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Specialized in butterfly valve manufacturing for over 30 years. NSEN delivers unmatched quality, durability, and bidirectional sealing performance trusted globally since 1983.
A legacy of innovation and excellence in industrial valve engineering since 1983.
NSEN is a scientific and technological enterprise dedicated exclusively to the development, production, and service of high-performance metal-to-metal seal butterfly valves. With over three decades of experience, we have built a reputation for reliability and precision across global markets.
Our team includes more than 20 senior and mid-level technicians with extensive expertise in valve design and industrial applications. This depth of knowledge ensures that every NSEN valve meets the highest standards of performance and safety.
Precision engineering in Wenzhou, China
Engineered for performance, durability, and zero leakage in demanding applications.
Achieves bi-directional sealing with floating seat structure. Ideal for high-temperature and high-pressure environments.
Advanced design with no rubbing action. Suitable for cryogenic, chemical, and oil & gas applications.
New product line designed for extreme low-temperature applications such as LNG and refrigeration systems.
Optimized for high-cycle operations with minimal wear and long service life.
Corrosion-resistant materials for marine and offshore environments.
Cost-effective solution for water and wastewater treatment plants.
Designed for direct welding into pipelines. Eliminates flange connections for compact installations.
Robust design for slurry, viscous fluids, and abrasive media in mining and pulp industries.
Decades of engineering excellence focused on performance, reliability, and service.
Bi-directional sealing performance ensures no leakage even under extreme conditions.
Established in 1983, NSEN brings decades of specialized knowledge to every valve.
On-site serviceability with replaceable components reduces downtime and maintenance costs.
Precision manufacturing and high-quality materials ensure extended operational life.
NSEN specializes exclusively in butterfly valves with over 30 years of focused expertise. Our metal-to-metal sealing technology ensures zero leakage in both directions, and our replaceable design allows for easy on-site maintenance.
Yes, NSEN provides bi-directional sealing capability across multiple product lines, including metal-seated and triple offset butterfly valves, using floating seat structures.
Yes, we offer seawater-resistant butterfly valves with corrosion-resistant materials such as duplex stainless steel and specialized rubber seals (EPDM/NBR) to withstand marine environments.
Yes, NSEN has developed new cryogenic butterfly valves tested to -196°C, ideal for LNG, liquid nitrogen, and other low-temperature applications.
NSEN is headquartered in Lingxia Industrial Zone, Wuniu Street, Wenzhou City, Zhejiang Province, China 325103.
For inquiries about our products or pricing, visit our official website to contact the team directly.
NSEN Valve Co., Ltd.
Lingxia Industrial Zone, Wuniu Street, Wenzhou City, Zhejiang Province, China 325103
Phone: 0086-13736963322
Email: [email protected]
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