Trimteck Manufacturing Technology

Process Control Valves

What is a control valve?

valve noun \’valv\
any of numerous mechanical devices by which the flow of liquid, gas, or loose material in bulk may be started, stopped, or regulated by a movable part that opens, shuts, or partially obstructs one or more ports or passageways

control valve noun \kən′trōl ′valv\
a power operated device which modifies the fluid flow rate in a process control system; consists of a valve connected to an actuator mechanism that is capable of changing the position of a flow controlling element in the valve in response to a signal from the controlling system

Trimteck manufactures a comprehensive line of Optimux control valves – and a variety of actuators, positioners, severe service trims, and other accessories – that our applications engineers and representatives use to solve the most complex flow, pressure, and temperature control problems quickly and economically.

At Trimteck, we are obsessed with quality.

Browse from our selection of exceptional process Control Valves below. Click a product to read full details and documentation.

Control Valves

Control Valve Selection Information


The Reliability Cycle

Reliability of an industrial process is determined by the control of variables within the process i.e. Flow, Pressure, and Temperature. Since the final control elements – the fingers in the sauce – are control valves, proper valve performance is critical to the reliability of the process.

Why do we use Control Valves?

As the number of components in series increases, the system’s reliability decreases. In order to achieve a high degree of system reliability, the individual component reliability has to be high as well – especially for systems with many components

Number of
Components
System
Reliability
1 0.95
2 0.9025
4 0.8145
6 0.7351
8 0.6634
10 0.5987

How do we classify Control Valves?

In order to simplify the selection and specification of a device with such a broad definition, control valves are traditionally classified according to one or more of the following factors:

1

By Function

  • On/Off
  • Non-return Throttling
  • Final Control
  • Element

2

By Application

  • General Service
  • Special Service
  • Severe Service

 

3

By Motion

  • Linear
  • Rotary

 
 

Classifying Control Valves According to Service Application

General Service

valve1-white

General service valves are those designed for a majority of commonplace applications with lower pressure ratings

 

  • Lower ANSI Class: 150 to 600
  • Moderate Temperature: -50 to 650°F
  • Noncorrosive fluids
  • Minimal Pressure Drops
  • No cavitation
  • No flashing
  • Carbon or Stainless Steel
  • Interchangeable and common to a wide variety of applications

Special Service

Special service valves are custom-engineered and designed for a single application due to any of the following:

 

  • Higher pressures
  • Demanding temperatures
  • Corrosive fluids
  • Moderate Pressure Drops
  • Mild cavitation
  • Special materials requirements
  • Unique applications

Severe Service

Severe service valves are fitted with special features to handle extreme applications, such as high pressure drops that result in severe cavitation, flashing, choking, or high noise levels

 

  • All pressures
  • Extreme temperatures
  • Severe Pressure Drops
    – Cavitation
    – Flashing
    – Choking
    – Noise
  • Custom-engineered trims

Basic Control Valve Style Comparison

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Why is proper control valve selection important?

As we’ve seen, there are many types of valves available for a wide range of process applications ...

Choosing the correct valve can improve the efficiency and reliability of your process, and save you time and money.

Less maintenance, less downtime, and a better end result.

More Information

Read our full documentation on valve sizing and selection.

What differentiates Trimteck from other manufacturers?

Organizational Differentiators

Trimteck-Optimux-Design-Management-500x200
  • Fast/Responsive
  • Agile
  • Consultative Quoting
  • Control Valve Experts
  • Experienced
  • Robust & Modern Manufacturing Capabilities
  • Made in USA
  • Engineering Expertise
    – Applications
    – Design
    – Simulation

Product Differentiators

Trimteck-Optimux-Design-Engineering-500x200
  • Reliable
  • Robust
  • Better/More Precise Control
  • Broad Products/Solutions Portfolio
  • Specific Technical Attributes for the range of service conditions:
    – General
    – Special
    – Severe
PROUDLY SERVING OUR CUSTOMERS WORLDWIDE
Control Valves

How to order Control Valves from Trimteck


This website provides thorough coverage to assist customers in making informed choices for their facility's process control requirements.

If you need help don't hesitate to reach out to us. Thank you for your interest in our products!

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