In the era of rapid industrial automation, the role of the manual valve remains foundational. While automated systems offer precision, manual valves provide the critical fail-safe, tactile reliability, and maintenance-free longevity required in high-stakes environments like petrochemical refineries and power plants. As a leading OEM/ODM Manual Valve Factory, Zhejiang Maria Valve Co., Ltd. is bridging the gap between traditional mechanical excellence and modern material science.
Unlike electronic actuators, manual valves are immune to power surges and software glitches, ensuring control in extreme emergency shut-off scenarios.
Utilizing CF8, CF8M, and Forged Carbon Steel to resist high-pressure (up to 3000 PSI) and cryogenic temperatures (-196°C).
Our products adhere to API, DIN, Korean, and Russian industrial standards, ensuring seamless integration into international pipelines.
Redefining Excellence in Fluid Control Since 2003
Since its establishment, Zhejiang Maria Valve Co., Ltd. has specialized in manufacturing a wide range of industrial valves, serving key sectors such as petroleum, steel, power generation, chemical, and water treatment. Leveraging years of experience and advanced engineering technology, we have consistently delivered high-quality, reliable valves to clients worldwide.
Founded with a commitment to innovation and excellence, Zhejiang Maria Valve has become a trusted supplier for global process control solutions. As one of the pioneers in China’s valve manufacturing industry, we have contributed to advancing control valve technology and elevating product standards across the market.
The Chinese valve manufacturing ecosystem offers a unique synergy of cost-efficiency, technological agility, and comprehensive supply chain integration.
Located in the heart of Zhejiang's industrial hub, we have immediate access to high-grade raw materials (SS304, SS316L, WCB) and specialized finishing services.
From 1/4" instrument needle valves to large-scale flanged ball valves, our engineering team can adapt designs to meet specific pressure ratings and flow coefficients (Cv).
Every valve undergoes hydrostatic and pneumatic testing. Our QA systems ensure compliance with global standards, reducing the risk of downtime for end-users.
Our specialized cryogenic ball valves with extended stems are designed for LNG and liquid nitrogen storage, providing bubble-tight sealing at ultra-low temperatures.
Handling abrasive and corrosive fluids requires specialized materials. Our CF8M stainless steel valves and abrasive-resistant pinch valves offer the durability needed for the harshest chemical environments.
We provide high-port floating ball valves and knife gate valves that ensure reliable water control for urban infrastructure, designed for a service life of 20+ years.
We provide full design customization, including material selection (Stainless Steel, Carbon Steel, Brass), logo branding, and custom packaging. Our engineering team works directly with your technical specifications to ensure the final product meets your application's flow and pressure requirements.
Yes. Our valves are manufactured to meet 1000WOG, PN10, PN16, and high-pressure ratings up to 3000 PSI for needle valves, complying with API, DIN, and BSPP standards.
Cryogenic valves are equipped with extended stems to prevent the packing from freezing and are subjected to rigorous low-temperature testing. We use specific alloys that maintain mechanical integrity at temperatures as low as -196°C.
Standard lead times range from 3 to 6 weeks depending on the complexity of the design and order volume. We maintain a steady stock of raw materials to expedite production for urgent projects.
Precision Assembly
Export Packaging
Automated Production Lines
Maria Valve
