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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

  • Can You Weld or Repair a Cracked Stainless Steel 304 Flanged Globe Valve Body On-Site
  • What Are the Common Failure Modes of a Gearbox Globe Valve and How to Prevent Them
  • What Makes Russian Standard Gate Valve Essential for Modern Pipeline Systems?
  • How Do You Properly Install an Elastic Seat Butterfly Valve Between Flanges Without Damaging the Seat
  • How Often Should You Inspect and Replace a Rubber Joint Flange in Industrial Pumps
  • Bellow Sealed Gate Valve vs. Standard Packed Gate Valve – Which One Saves More on Long-Term Maintenance
  • 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 You Weld or Repair a Cracked Stainless Steel 304 Flanged Globe Valve Body On-Site

    When a cracked body is discovered on a Stainless Steel 304 Flanged Globe Valve in the middle of a production run, the immediate instinct is often to grab a welding torch and fix it on the spot. Time is money, and replacing a large-bore valve can mean days of downtime. However, the answer is not a simple "yes" or "no." This guide provides a professional, engineer-level assessment of on-site repair viability, backed by metallurgical facts and safety standards, while introducing how Huadu approaches such critical failures in industrial flow control.

  • What Are the Common Failure Modes of a Gearbox Globe Valve and How to Prevent Them

    In critical industrial flow control systems, the Gearbox Globe Valve is indispensable for precise throttling and on-off service under high differential pressures. However, even the most robust Gearbox Globe Valve can encounter performance degradation or catastrophic failure if operating conditions are not fully understood.

  • What Makes Russian Standard Gate Valve Essential for Modern Pipeline Systems?

    ​In industrial fluid control systems, valves play a decisive role in ensuring safety, efficiency, and long-term operational stability. Among various valve types, the Russian Standard Gate Valve has gained significant attention due to its robust structure, reliable sealing performance, and adaptability to demanding working conditions. It is widely used in oil & gas, water supply, chemical processing, and power generation industries where stable shut-off performance is critical.

  • How Do You Properly Install an Elastic Seat Butterfly Valve Between Flanges Without Damaging the Seat

    Installing an Elastic Seat Butterfly Valve between flanges sounds straightforward, but one wrong move—over-tightening a bolt, misaligning the gasket surface, or forgetting the concentricity—can ruin the resilient seat before the system even starts.

  • How Often Should You Inspect and Replace a Rubber Joint Flange in Industrial Pumps

    For maintenance engineers and plant operators, few questions carry as much direct impact on uptime and safety as this: How often should you inspect and replace a Rubber Joint Flange in industrial pumps? The short answer is not a single number—it depends on duty cycle, fluid type, temperature, and vibration levels. However, industry best practices, backed by manufacturers like Tianhong, establish clear intervals that balance reliability against unnecessary downtime.

  • Bellow Sealed Gate Valve vs. Standard Packed Gate Valve – Which One Saves More on Long-Term Maintenance

    When selecting industrial flow control components for critical applications, engineers and plant managers constantly weigh upfront capital expenditure against total cost of ownership. The Bellow Sealed Gate Valve has gained significant traction in recent years as a superior alternative to traditional packed stem designs.

  • 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.

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