Valtek-Flowserve

Precision Industrial Control Valves

Centro is a trusted partner for customers who rely on the precision of Valtek's industrial control valves. Valtek has pioneered advancements in traditional control valves, introducing a high-pressure piston actuator that maximizes stiffness. Complemented by a user-friendly one-touch calibration positioner, this innovation results in superior process control. The outcome is increased operational efficiency and profitability.

Valtek's reputation is built on a foundation of reliability, extended product life, parts interchangeability, ease of maintenance, and timely deliveries. The Valtek brand is synonymous with high-quality control valves, encompassing not only standard models but also advanced offerings like the StarPacTM intelligent systems and LogixTM digital valve controllers.

Valtek's control products are renowned for their ability to handle the most demanding applications. These valves excel in environments with cryogenic conditions, superheated steam, volatile and corrosive fluids, erosion, high-pressure differentials, vibration, cavitation, flashing, and high noise levels.

Valtek's valves feature spring cylinder or spring diaphragm actuators, delivering the necessary thrust and speed to manage a wide range of services. Additionally, Valtek offers four-way analog and digital positioners known for their precision and responsiveness in handling even the most exacting applications.

FAQs

What’s the most common Valtek control valve style?

The Valtek Mark One is a widely used globe control valve for liquid and gas services, designed for performance and maintainability.

What’s the difference between a globe valve and a rotary control valve?

Globe valves typically excel in precise throttling and high-pressure-drop applications; rotary valves (ball/butterfly/eccentric plug styles) are often compact and strong for larger flows or certain dirty services. (Selection depends on service conditions.)

How do I size a Valtek control valve?

You’ll need flow rate, inlet/outlet pressure, temperature, fluid properties (SG/viscosity), and required shutoff/leakage class. The goal is to hit your normal operating point without running the valve nearly closed or wide open.

What actuators are commonly used with Valtek valves?

Valtek Mark One is commonly paired with a spring-cylinder pneumatic actuator designed for stiffness and accurate positioning.

How do I identify my Valtek valve to get the right parts?

Use the nameplate info and, most importantly, the serial number when requesting trim, packing, actuators, or repair kits (common requirement across IOMs).

: The Valtek Mark One is a widely used globe control valve for liquid and gas services, designed for performance and maintainability.
: Globe valves typically excel in precise throttling and high-pressure-drop applications; rotary valves (ball/butterfly/eccentric plug styles) are often compact and strong for larger flows or certain dirty services. (Selection depends on service conditions.)
: You’ll need flow rate, inlet/outlet pressure, temperature, fluid properties (SG/viscosity), and required shutoff/leakage class. The goal is to hit your normal operating point without running the valve nearly closed or wide open.
: Valtek Mark One is commonly paired with a spring-cylinder pneumatic actuator designed for stiffness and accurate positioning.
: Use the nameplate info and, most importantly, the serial number when requesting trim, packing, actuators, or repair kits (common requirement across IOMs).

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