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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 Are the Key Differences Between EPDM and PTFE Seated Stainless Steel Butterfly Valves
  • How to Correctly Size a Cage Type Single Seat Control Valve for Liquid Service
  • Where Should You Install a Breather Valve on a Fixed-Roof Tank for Optimal Performance
  • Can a Metal Hard Seal Butterfly Valve Handle High-Temperature Steam Applications
  • Why Is Bus Air Tank Drain Valve Essential for Safer and More Efficient Bus Operations?
  • Why Does My Hard Seal Metal-Seated Globe Valve Keep Chattering Under Low-Flow Conditions
  • Why Do API Globe Valves Have Higher Pressure Drops Compared to Other Isolation Valves in Pipeline Systems
  • What Is the Pressure Drop Across High Performance Ventilation Butterfly Valves at Full Open Position

  • What Are the Key Differences Between EPDM and PTFE Seated Stainless Steel Butterfly Valves

    When selecting a Stainless Steel Butterfly Valve for critical flow control systems, the seat material often determines the valve’s longevity, safety, and operational efficiency. Among the most debated choices are EPDM (ethylene propylene diene monomer) and PTFE (polytetrafluoroethylene) seats.

  • How to Correctly Size a Cage Type Single Seat Control Valve for Liquid Service

    Sizing a control valve for liquid flow is one of the most critical responsibilities a process engineer faces. An undersized valve starves the system, causing production bottlenecks, while an oversized valve hunts continuously, wears out its trim prematurely, and leads to costly unplanned shutdowns. For LOZOSE, a manufacturer with over two decades of expertise in precision flow control, the Cage Type Single Seat Control Valve represents the optimal fusion of mechanical stability, noise attenuation, and bubble-tight shut-off. Yet even the finest valve performs poorly if its size does not match the process demand.

  • Where Should You Install a Breather Valve on a Fixed-Roof Tank for Optimal Performance

    Proper placement of a Breather Valve on a fixed-roof storage tank is not a matter of guesswork—it is a critical engineering decision that directly impacts safety, emission control, and operational efficiency. For facilities relying on atmospheric or low-pressure storage, the installation location determines how effectively the Breather Valve responds to thermal in-breathing and out-breathing events.

  • Can a Metal Hard Seal Butterfly Valve Handle High-Temperature Steam Applications

    When engineers face demanding steam systems above 400°C, the valve selection process often becomes a battleground between reliability and cost. The Metal Hard Seal Butterfly Valve has emerged as a serious contender in this space, but does it truly deliver the long-term performance that high-temperature steam requires? At Dafugui, we have spent over two decades testing and refining our Metal Hard Seal Butterfly Valve designs specifically for thermal power plants, petrochemical crackers, and superheated steam distribution networks.

  • Why Is Bus Air Tank Drain Valve Essential for Safer and More Efficient Bus Operations?

    ​In modern commercial transportation, the air brake system plays a critical role in ensuring vehicle safety and operational reliability. However, compressed air systems often generate moisture, oil residue, and impurities during operation. Without effective drainage, these contaminants may accumulate inside the air tank, causing corrosion, air pressure instability, and potential brake system failures. A high-quality Bus Air Tank Drain Valve provides an efficient solution by removing unwanted moisture and maintaining a clean pneumatic system.

  • Why Does My Hard Seal Metal-Seated Globe Valve Keep Chattering Under Low-Flow Conditions

    If you have ever heard a persistent, high-frequency vibration or rattling noise coming from your Hard Seal Globe Valve during low-flow operation, you are not alone. This phenomenon, known as valve chattering, is one of the most common yet misunderstood issues in industrial flow control.

  • Why Do API Globe Valves Have Higher Pressure Drops Compared to Other Isolation Valves in Pipeline Systems

    For engineers and procurement specialists, the pressure drop characteristic of API Globe Valves is a recurring discussion point during system design. While Hanno provides a full spectrum of industrial flow control solutions, the fluid dynamics inside a globe valve inherently create a more significant pressure loss than gate, ball, or butterfly valves.

  • What Is the Pressure Drop Across High Performance Ventilation Butterfly Valves at Full Open Position

    For engineers and facility managers specifying airflow control components, pressure drop is often the decisive factor between efficient system operation and costly energy waste. When evaluating High Performance Ventilation Butterfly Valves, the full-open pressure drop coefficient (Cv or Kv) directly impacts fan sizing, static pressure budgets, and long-term power consumption.

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