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Tianjin Konos Industrial Valve Manufacturing Co., Ltd. established in 2010, mainly engaged in water conservancy machinery and equipments. There are five types of products valves, pipe fittings, Mechanical Bar Screen, penstock and crane. Our factory has gradually formed an effective and well-run business model. During the industry is facing historic development opportunities, the company followed the market situation and industrial development trends, spread new business areas, opened an overseas sales company. In addition, the company is actively transforming to provide customized services on the basis of traditional manufacturing. Our technicians available to make design according to clients request. Also produce OEM products as well.

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New Products

BS Standard Cast Iron Metal Steated Gate Valve

BS Standard Cast Iron Metal Steated Gate Valve

China High Pressure 4 Inch DIN F4 Ductile Cast Iron Ggg50 Resilient Seated Nrs Sluice Gate Valve Factory

China High Pressure 4 Inch DIN F4 Ductile Cast Iron Ggg50 Resilient Seated Nrs Sluice Gate Valve Factory

DN1500 Pn16 En593 14 China Factory Ductile Iron Ggg50 Gear Operated Double Flange Butterfly Valve Resilient Seat Double Offset / Eccentric Butterfly Valve

DN1500 Pn16 En593 14 China Factory Ductile Iron Ggg50 Gear Operated Double Flange Butterfly Valve Resilient Seat Double Offset / Eccentric Butterfly Valve

China Factory Ductile Iron Ggg50 Eccentric Butterfly Valve DN1500 Pn16 Gear Operated Butterfly Valve Resilient Seat Double Offset / Eccentric Butterfly Valve

China Factory Ductile Iron Ggg50 Eccentric Butterfly Valve DN1500 Pn16 Gear Operated Butterfly Valve Resilient Seat Double Offset / Eccentric Butterfly Valve

3 PCS 600lb Forged Steel Ball Valve-Q47f

3 PCS 600lb Forged Steel Ball Valve-Q47f

300lb 3 PCS Forged Steel Ball Valve-Q47f

300lb 3 PCS Forged Steel Ball Valve-Q47f

3 PCS 600lb Forged Steel Ball Valve-Q47f

3 PCS 600lb Forged Steel Ball Valve-Q47f

3PC API 6D Pipeline Forged Steel Ball Valve

3PC API 6D Pipeline Forged Steel Ball Valve

News

  • What Material Grades Are Best for an Extended Stem Butterfly Valve in Sour Service Environments
  • Why Does a Thermal Expansion Valve For Freezer Matter in Modern Refrigeration Systems?
  • Can an L/T Port Three Way Flanged Ball Valve Be Used for Both Diversion and Mixing Without Modification
  • Why Is My Carbon Steel ASTM Basket Strainer Rusting Despite Proper Water Treatment
  • What Is Manual Valve and How Does It Improve Industrial Flow Control Efficiency?
  • What Is the Correct Bolting Torque for Installing a Forged National Standard Globe Valve in a Flanged Pipeline
  • How Can a Water Treatment System Improve Water Quality?
  • Why Does a Pneumatic Three Piece Flange Ball Valve Matter in Modern Industrial Flow Control Systems?

  • What Material Grades Are Best for an Extended Stem Butterfly Valve in Sour Service Environments

    Selecting the right material for an Extended Stem Butterfly Valve in sour service is not a matter of preference—it is a matter of safety, compliance, and lifecycle cost. Sour service environments, defined by the presence of hydrogen sulfide (H₂S) in produced fluids, impose strict metallurgical requirements to prevent sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC). For over two decades, Zhongguan has supplied Extended Stem Butterfly Valve solutions to offshore platforms, gas processing plants, and sour crude pipelines, and we have learned that material selection must follow NACE MR0175/ISO 15156 standards while balancing cost, machinability, and corrosion resistance.

  • Why Does a Thermal Expansion Valve For Freezer Matter in Modern Refrigeration Systems?

    ​In modern cold-chain engineering and refrigeration applications, precise temperature control is no longer optional—it is essential. One of the most critical components enabling this stability is the Thermal Expansion Valve For Freezer. It plays a key role in regulating refrigerant flow into the evaporator, ensuring that freezers maintain consistent cooling performance even under fluctuating load conditions. Without it, freezing systems would suffer from inefficiency, frost buildup, and unstable temperatures that compromise storage quality.

  • Can an L/T Port Three Way Flanged Ball Valve Be Used for Both Diversion and Mixing Without Modification

    This is one of the most frequently asked questions we receive from process engineers, procurement specialists, and plant maintenance managers. The short answer is no—but the full explanation requires a closer look at the internal geometry of the L/T Port Three Way Flanged Ball Valve. At JOEPAI, we have supplied thousands of these valves across oil & gas, chemical, and water treatment facilities, and we consistently see confusion around this very point. Understanding the distinction between diversion and mixing service is critical before you specify or install an L/T Port Three Way Flanged Ball Valve in your pipeline system.

  • Why Is My Carbon Steel ASTM Basket Strainer Rusting Despite Proper Water Treatment

    If you have invested in a Carbon Steel ASTM Basket Strainer for your industrial piping system, you expect durability and corrosion resistance—especially when you are maintaining what you believe is "proper" water treatment. Yet, rust appears. This is one of the most common and frustrating calls we receive at Huadu.

  • What Is Manual Valve and How Does It Improve Industrial Flow Control Efficiency?

    ​In modern industrial automation and fluid control systems, the Manual Valve remains one of the most essential and widely used components. Despite the rapid development of automated and pneumatic control technologies, manual control devices continue to play a critical role in ensuring operational safety, system flexibility, and cost efficiency. A Manual Valve allows operators to directly regulate the flow of liquids, gases, or steam by physically adjusting the valve position.

  • What Is the Correct Bolting Torque for Installing a Forged National Standard Globe Valve in a Flanged Pipeline

    Proper installation of a Forged National Standard Globe Valve directly determines its service life, leak-tightness, and operational safety. Among all installation steps, bolting torque is the most frequently miscalculated parameter. Incorrect torque leads to flange leakage, gasket extrusion, or even valve body distortion. For industrial facilities relying on Huadu’s precision-engineered Forged National Standard Globe Valve, following the correct torque procedure is not optional—it is a prerequisite for reliable performance.

  • How Can a Water Treatment System Improve Water Quality?

    A water treatment system plays a critical role in transforming raw, untreated water into safe, usable, and high-quality water for residential, commercial, and industrial applications. This article explains how modern water treatment systems work, the key processes involved, common challenges users face, and how to select the right solution for long-term performance. It also highlights practical insights from real-world applications and introduces how advanced solutions from VLLRO help improve efficiency, reliability, and water safety.

  • Why Does a Pneumatic Three Piece Flange Ball Valve Matter in Modern Industrial Flow Control Systems?

    ​The pneumatic three piece flange ball valve is a critical component in modern industrial automation and fluid control systems. It combines pneumatic actuation with a modular three-piece body design and flange connection, offering high reliability, easy maintenance, and excellent sealing performance. This article explores its structure, working principle, advantages, applications, selection criteria, installation methods, troubleshooting strategies, and long-term operational benefits.

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