VMV Newton is dedicated to the research, development, production, and energy-saving system upgrades of steam system products. It has established a comprehensive steam trap design theory and steam laboratory. Each new product is meticulously designed and undergoes multiple simulation tests. All products undergo rigorous inspection and simulation testing before leaving the factory. Therefore, you can completely trust Newton’s product quality. Let’s take a look at Newton’s product offerings.
Steam Traps
Steam traps are devices that automatically remove non-condensable gases (such as steam condensate and air) from heating equipment or steam pipelines without steam leakage. Steam traps automatically block steam and discharge condensate. They can promptly discharge condensate from steam pipelines, preventing water hammer; and discharge condensate from heating equipment, ensuring maximum heat exchange area and improving thermal efficiency. Steam traps are widely used in water supply systems across various industries, including petrochemicals, food and beverage, pharmaceuticals, textile printing and dyeing, power, and tobacco, playing a vital role in energy conservation and emission reduction.
Bellows Sealed Valves
Bellows are mainly divided into two types: forged bellows and welded bellows. Forged bellows are made by rolling flat, thin sheets (thin-walled foil) into a tubular shape and then longitudinally welding them. Afterwards, the tubular material is processed into a bellows with rounded, widely spaced folds using mechanical or hydraulic forming processes. Welded bellows, on the other hand, are made by welding gasket-shaped thin metal sheets together, with the welds located on the inner and outer circumferences of the gasket-shaped metal sheets. Compared to forged bellows, welded bellows have more folds per unit length. Therefore, for the same stroke length, the length of a forged bellows is two to three times that of a welded bellows.
The most commonly used stainless steel bellows material is AISI 316Ti, which contains titanium and can withstand high temperatures. Furthermore, compared to stainless steel bellows, Inconel 600 or Inconel 625 have higher fatigue strength and corrosion resistance. Similarly, Hastalloy C-276 exhibits superior corrosion resistance and fatigue strength compared to Inconel 625. Employing a multi-layer bellows system and shortening the stroke length can improve fatigue strength, thereby significantly extending the bellows’ service life.
Control Valves
Control valves, also commonly known as regulating valves, are key terminal components in industrial automation process control. Like an “automatic hand,” they receive instructions from the control system (such as PLCs or DCS) to precisely regulate the flow rate, pressure, temperature, and level of media (such as liquids and gases) in pipelines, ensuring the stable, efficient, and safe operation of the entire production process.
Control valves mainly consist of two parts: the actuator and the valve body assembly. The actuator is the “power source” and “muscle” of the control valve. It receives signals from the control system (such as 4-20mA current signals) and converts them into mechanical motion (linear or rotary), thereby driving the valve core. The valve body assembly is the “heart” and “trunk” of the control valve. It directly contacts the process medium, changing the cross-sectional area of the flow channel through the movement of the valve core, thus achieving fluid regulation. In addition, to improve control accuracy and reliability, the system is typically equipped with accessories such as valve positioners, solenoid valves, and filter pressure reducing valves.
The operation of a control valve is a typical closed-loop feedback control: the control system (such as a DCS) issues a set control signal based on process requirements (e.g., a required flow rate of 50%). The actuator receives this signal and converts it into linear displacement of the push rod or rotational angle of the shaft. The push rod or shaft drives the valve core to move, changing the flow area between the valve core and the valve seat, thereby precisely regulating parameters such as the flow rate and pressure of the medium. Sensors monitor the actual parameters in the pipeline (such as the actual flow rate) in real time and feed the signal back to the control system. If the actual value deviates from the set value, the control system issues a new command to drive the control valve for fine-tuning until precise control is achieved.
If you are looking for high-quality valves, please contact us. Newton is committed to providing you with high-quality products and offers the following guarantee for product quality: Within eighteen months from the date of final inspection or twelve months from the date of commencement of use (whichever is shorter), if the product or its faulty component fails under normal use due to design or manufacturing defects of VMV valves, VMV valves will repair or replace the product or its faulty component free of charge.
