KOSEN Valve Co., Ltd. is a top-tier valve manufacturer in China, specializing in a range of industrial valves including ball, butterfly, gate, globe, and check valves. Equipped with advanced CNC machinery and a skilled team, KOSEN ensures high-quality production through rigorous testing and strict quality control. We offer rapid delivery and a wide selection of materials, including stainless steel and carbon steel. KOSEN also provides reliable after-sales support, including an 18-month warranty, 24-hour technical assistance, and on-site guidance, all aimed at ensuring customer satisfaction and timely service.
KOSEN: Leading Valve Manufacturer with Superior Design and Production Capacity
KOSEN is a premier valve manufacturer and one of the largest valve factories in China. We specialize in the production of ball valves, butterfly valves, gate valves, globe valves, and check valves.
Our Business Scope Includes:
Manufacturing and processing a wide range of industrial valves
Ball Valves, Butterfly Valves, Gate Valves, Globe Valves, Check Valves
Motorized and Isolation Valves
Stainless Steel Ball Valves, Tee Ball Valves, Cryogenic Valves
Control Valves and High-Temperature/Pressure Station Valves
Quality First: KOSEN Valve Co., Ltd. Philosophy
KOSEN is one of China's most professional valve manufacturers and suppliers, committed to delivering top-tier products and services.
Advanced Technology: Equipped with state-of-the-art CNC machines, testing, and automatic production equipment.
Experienced Team: Skilled technicians and dedicated production and sales teams with extensive research training.
Strict Quality Control: Rigorous procedures ensure precise control at every stage of production.
Comprehensive Testing: Our ITP plan includes UT, MT, PT, chemical composition tests, hardness tests, impact tests, cryogenic tests, and pressure tests.
In-House Tooling: We manufacture all standard tooling in-house, ensuring the highest quality for DBV valves from start to finish, meeting international standards.
KOSEN boasts rapid delivery capabilities, ensuring that customer needs are met swiftly and efficiently.
By partnering with top-tier suppliers in the industry, KOSEN guarantees the highest quality from the very beginning of the valve production process.
With a substantial inventory of semi-finished valves and common valve materials, KOSEN is able to deliver products quickly, reducing lead times for customers.
KOSEN also has extensive experience working with a wide range of valve materials, including:
Stainless Steel Valves: CF8, CF8M, CF3, CF3M, 2205, 304/L, 316/L, 317L, 310S
Carbon Steel Valves: WCB, A105, WCC, LCC, LCB
Cast Iron Valves: GG20, GG25, GGG40, GGG50, A536, A395
Aluminum Bronze: C95400, C95500, C95800
Certification and Comprehensive After-Sales Service
KOSEN is committed to providing exceptional after-sales support with a range of services designed for customer satisfaction.
18-Month Warranty: Enjoy an 18-month product warranty for peace of mind.
24-Hour Technical Support: Our dedicated hotline is available around the clock for any technical queries.
Routine Maintenance & Training: We offer regular maintenance and training for troubleshooting common faults.
On-Site Support & Guidance: Remote or on-site valve reviews, installation, and operational guidance are provided as needed.
Responsive Service: In case of quality issues, our professional customer service team can dispatch personnel to the site if required, with technical consultations answered within 24 hours.
Our goal is to resolve issues efficiently and deliver top-notch service, ensuring your complete satisfaction.
With extensive experience in production and international trade, KOSEN is dedicated to providing high-quality services to customers worldwide.
Commitment to Service: We promise efficient and convenient service to all clients.
World-Class Valves: We manufacture top-tier valves at competitive prices, ensuring exceptional quality and reliability.
Timely Delivery: Orders are completed on time, with perfect service to meet client requirements across various aspects.
Technological Leadership: We maintain a competitive edge through advanced research and technology, continually improving our market position.
Our mission is to exceed customer expectations, delivering the best products and services to every client.
