Zhejiang Dongri Valve Supplies Comprehensive Ball Valve Solutions for Oil, Gas and Industrial Process Industries

Company Profile & Manufacturing Expertise

Integrating R&D, design, manufacturing and sales under one roof, Zhejiang Dongri Valve has accumulated more than two decades of experience in the valve industry. Its leading products are ball valves, offering a comprehensive series that includes API Ball Valve, Floating Ball Valve, Trunnion Mounted Ball Valve, Metal Hard Sealed Ball Valve and Forged Steel Ball Valve. These products comply with a wide range of international and national standards, including GB, JB, HG, ISO, API, ANSI, BS, DIN, NF and JIS, with non-standard specifications also available to meet specific customer requirements.

Comprehensive Ball Valve Product Portfolio

• Ball Valve: The company's core product line, engineered for reliable flow control with excellent sealing performance, low torque and long service life;
• API Ball Valve: Designed and manufactured in accordance with American Petroleum Institute standards, ideal for oil, natural gas and high-pressure pipeline applications;
• Floating Ball Valve: Featuring a free-floating ball that presses against the downstream seat under line pressure for tight shut-off, widely used in medium and low-pressure applications;
• Trunnion Mounted Ball Valve: Fixed-ball design where the ball is supported by trunnions, providing stable operation and lower operating torque for large-diameter and high-pressure service;
• Metal Hard Sealed Ball Valve: Metal-to-metal sealing construction for high-temperature, abrasive and corrosive media, suitable for demanding process conditions;
• Forged Steel Ball Valve: Precision-forged steel construction delivering high strength and reliability for high-pressure and critical service applications.

Wide Material, Specification & Operation Coverage

Dongri Valve's products are manufactured from a broad range of high-quality materials to suit diverse working conditions, including carbon steel (WCB, WCC, A105), low-temperature steel (LCB, LCC, LC6, LC9, LF1, LF2, LF3), high-temperature steel (WC6, WC9, C5, CA12, CA15, F11, F22, F5), austenitic stainless steel (CF8, CF8M, CF3, CF3M, CF8C, F304, F316, F304L, F316L, F347), duplex stainless steel (4A, 5A, F51, F55) and other special alloy materials.

The valves cover sizes from DN15 to DN1000 (1/2″–40″), working pressures from PN1.6MPa to 42.0MPa (150Lb–2500Lb), and operating temperatures from −196°C to 800°C. Drive modes include manual, worm-gear, electric, pneumatic and hydraulic operation, providing flexible solutions for various installation and automation requirements.

Global Applications & Quality Commitment

For over two decades, Zhejiang Dongri Valve products have been widely used across various industries, including petroleum, natural gas, chemical, energy, pharmaceutical, metallurgy and papermaking. Upholding the business philosophy of "Customer First, Quality Foremost", the company has established an excellent reputation within the industry over the years and continues to serve global distributors, engineering contractors and process-industry clients with reliable ball Valve Solutions.

• Phone: +86 13777730323
• Email: 241126365@qq.com