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Types Of COVNA Control Valve

COVNA Pneumatic Control Valve

Features including top guide structure, compact structure, fluid channels in an s-shaped streamline, small pressure drop loss, large flow.

● Nominal size: DN20 to DN200 (3/4in to 8in)

● Connection options: Flange, threaded, weld(butt weld or socket weld)

● Material options: Carbon steel, Stainless steel 304/316/316L

● Working pressure: PN16, PN25, PN40, PN63, PN100, Class 150, Class 300

● Working temperature: -4℉ to 392℉

● Valve types: Single seat, double seats, sleeve

● Actuator options: Single acting(Spring return) type or Double acting type

● Flow characteristics: Equal percentage, linear, quick-opening

● Rangeability: 50:1

● Other functions: 3-way mixing control valve, 3-way diverting control valve, 2-way fluorine lining control valve, 2-way high temperature control valve

Pneumatic 3-Way Control Valve

For mixing and diverting purposes

Pneumatic Fluorine Lining Control Valve

For application which requires anti-corrosion

Pneumatic High-Temperature Control Valve

For high-temperature applications

COVNA also manufactures all kinds of pneumatic accessories for you to allow your automation control process easier

Positioner

Limit Switch

Gearbox

F.R.L

Pneumatic Solenoid Valve

COVNA Electric Control Valve

Integrated structure with built-in electronic controller modules, eliminating the need for additional servo amplifiers. High precision and easy to install.

● Nominal size: DN25 to DN300 (1in to 12in)

● Connection options: Flange

● Material options: Carbon steel, Stainless steel 304/316/316L

● Working pressure: PN16, PN25, PN40, PN64, Class 150, Class 300

● Working temperature: -4℉ to 392℉

● Valve types: Single seat, sleeve

● Control Signals: 4-20mA, 1-5VDC

● Power Supply: 220V AC 50Hz

● Flow characteristics: Equal percentage, straight line

● Rangeability: 50:1

● Other functions: 3 way mixing control valve, 3 way diverting control valve, temperature control valve

Electric 3-Way Control Valve

For mixing and diverting purposes

Electric Temperature Control Valve

For regulating flow rate based on temperature

COVNA Self-Operated Control Valve

Features including sensitive action, good sealing performance, small pressure fluctuation and so on.

● Nominal size: DN15 to DN450 (1/2in to 18in)

● Connection options: Flange, weld(butt weld or socket weld)

● Material options: Carbon steel, Stainless steel 304/316/316L

● Working pressure: PN16, PN25, PN40, PN64, Class 150, Class 300

● Working temperature: 14℉ to 175℉

● Valve types: Single seat, double seat, sleeve

● Flow characteristics: Quick open

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What Is Modulating Control Valve?

  • The regulating control valve is an automatic valve. In addition to opening and closing, the regulating control valve is used to control the flow rate accurately. It is widely used in various control systems to provide the maximum adjustment solution for the effective operation of the system.
  • The actuator on the control valve opens and closes the valve accurately by receiving and feedback signals, thereby controlling the flow rate accurately. Generally, control valves are used in combination with positioners and sensors, so that the flow can be adjusted remotely and accurately.
  • According to the starting method, the regulating valve can be divided into pneumatic regulating valve, electric regulating valve and self-operated pressure regulating valve.
  • According to the valve body type, the regulating valve can be divided into 2-way and 3-way (Mixing or Diverting)
  • Control valve widely used in the water tank, paper and pulp, cement plant, oil and gas, sugar and syrup, boiler, and so on.
  • As a control valve supplier, COVNA supply a rising stem type control valve for your applications. Whatever industries you come from, we believe that we could help you to select the right valve, reduce the budget, the project runs well and gain more benefits.
  • Need price or datasheet, welcome to consult us! sales@covnavalve.com

How Control Valve Work?

Source: saVRee

Why Choose COVNA Valves?

COVNA has 20+ years of experience in the valve industry and we had offered one-stop valve solutions for more than 2,000 projects and help the project runs well.

What we can do for you? 

● Selection guide to help you to choose the valve for your project

● Offering 3D drawing, datasheet and online technical support to help you to install and use the valve right

● 100% inspection before shipment and 1-year warranty of all products to ensure the valve won’t fail during controlling

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