Válvulas de controle

Globe valves

Neles globe valves are high performance control valves designed to provide the best possible control accuracy and wide rangeability with all the inherent benefits of linear control valves. The quick-change trims and top-entry construction enable easy valve assembly and service, leading to extended operational life. Wide range of various trim designs are available from standard to low noise and anti-cavitation applications. Keeping track of the performance of the globe valves is simple with onlin...

Segment valves

Neles™ segment valves are economical high-performance control valves designed for liquid, gas, vapor and slurry control applications - especially those with high capacity and wide rangeability requirements. The Neles™ R-series offers light weight, low torque control valves from 1" low-capacity models up to 32".

Eccentric rotary plug valves, series FC and FG

Neles™ Finetrol™ eccentric rotary plug valve is designed for liquid, gas, vapor and slurry control in general and demanding applications. Neles Finetrol is certified to SIL 3. Excellent control performance and capability to handle impure fluids makes Finetrol well suited in refining and petrochemical industry applications.

PV/PVE pinch valves

Flowrox PV, PVE and PVE/S heavy duty pinch valves are designed for shut off and control applications involving abrasive or corrosive slurries, powders or granular substances. In the open position, the valve is full bore with no flow restrictions. During closing, two pinch bars squeeze the valve sleeve shut on the center line. Bubble tight shut-off is provided even if solids have built up on the sleeve wall.

Valve controllers

High availability and easy interpretation are the key success factors in effective field device data analysis. Valmet valve controllers support standardized technologies and ensure the availability and usability of diagnostics information independent of your control, safety or asset management system.

Butterfly valves

Neles™ butterfly valves are designed to truly optimize the efficiency of process operations by offering best-in-class valve capacity. They provide long-lasting tightness and industry-leading valve reliability, certified to SIL 3. Our product range includes both metal and soft-seated and rubber-lined butterfly valves.

Ball valves

Our ball valves are designed to meet the requirements of the process industries with improved process safety and efficiency. Our proven technology in design, materials and coatings enhance process reliability in the most demanding shut-off and control applications. For control applications our ball valves provide famous Q-trim™ technology for noise attenuation and cavitation prevention. A wide range of product certifications include fugitive emission, fire-safe and SIL 3.

Pneumatic actuators

Neles™ double acting and spring return quarter-turn actuators are designed for use both in modulating control and on-off service. These actuators offer an extremely long cycle life and are well suited for almost any type of rotary valve.

Valve sizing and selection software

The complete selection tool for all intelligent automated process valves is now available as a free web-based tool.

Why should I choose a pinch valve for a slurry control application?

jun. 2, 2023

There are three main advantages to choosing a pinch valve for slurry control application: first, the abrasion resistance; second, wide flow control range; and third, the low life cycle cost.

Controlling your flotation process

jun. 25, 2023

Flotation is an important part of mineral processing in most mining operations, requiring an accurate, durable, and repeatable level control valve to manage level control in the column, cell, staged reactor, or direct reactor. The head pressure to the control valve from each type of flotation process makes sizing a critical function to ensure proper operation of the valve and performance of the solution. For instance, flotation cells have very low driving head pressure to the valve. Since the he...

Your one-stop shop for control valves

nov. 1, 2017

What do you look for in a control valve supplier? When it comes to control valve requirements no two are ever the same. It is not just the pressure and temperature of the process or the required controllability, but also issues such as the need to prevent cavitation, to control noise, to keep within emission limits, etc. This means selecting a control valve always requires due care and attention.

Valve expertise secures Naantali power plant’s reliability

set. 17, 2018

The power plant process involves challenging conditions, and the plant must remain on stream continuously. Control valves are a small but important part of the process: they control flow and keep the power plant’s process stable, helping to ensure that the plant operates efficiently. This is why Neles’ valves were chosen for Turun Seudun Energiantuotanto Oy’s (TSE) new power plant in Naantali, Finland.

How to choose control valves?

abr. 9, 2018

Control valve requirements often differ depending on the process area, application and end user specifications. Process conditions and the range of parameters also vary widely, including pressure, temperature, controllability, cavitation risk, environmental impact, noise and more. Plus, priorities may differ. An end user may want to know more about a valve’s performance, controllability and total life-cycle cost, whereas an EPC contractor may be more concerned about the CAPEX-related costs and d...

Válvulas de controle confiáveis - base para o desempenho do processo e tempo em operação

jun. 20, 2023

When considering control performance in a modern process plant, it is easy to get confused by the complexity of it all. The control system is usually the part plant owners concentrate on most. However, one should not forget that the last control element – the control valve – sets the baseline for accurate control.

Determining the control valve pressure drop for control valve sizing purposes

dez. 16, 2015

Our guest writer Jon F. Monsen discusses the correct method for determining the control valve sizing pressure drop when the system already exists or has been designed.

Flowrox control and shut-off pinch valves succeed in ore and water treatment plants in a Spanish mine

mar. 21, 2022

After seven years of implementation of Flowrox™ pinch valves in a concentration plant, customer remains satisfied with the cost savings combined with reliable operation and easy valve maintenance. All 330 pinch valves were installed in an extension of their ore and water treatment plant. The project basically consisted of duplicating the size of an existing plant.