Diameter alone is not enough. Selecting the right plug profile also depends on the flow range, differential pressure, and fluid properties. The DEFINOX questionnaire compiles this critical operational data.
The Right Check Valve for Your Flow Range
The DCX3 REGUL modulates the opening of a shut-off valve to regulate flow rate. Its flow profile geometry is selected based on your specific process conditions. VAMECA provides the technical support you need to collect all critical data when sizing a new installation or retrofit. While pipe diameter serves as a baseline, minimum and maximum flow rates, differential pressure, and media characteristics are equally essential in determining the optimal selection.
Multiple Disc and Plug Profiles Available
Standard, reduced, or severely reduced bore options allow the valve to be tailored to your required flow rate.
Shut-off mechanism to be specified
Sealed configurations are available for applications requiring positive shut-off.
Built-to-Order Integration
The positioner receives the setpoint from the control system. Position feedback can be integrated to ensure precise monitoring.
Sanitary Configuration
Material selection, end connections, and cleaning procedures are strictly tailored to your actual process conditions.
Specify the valve and its control equipment
Two valves of the same nominal size can be configured with different trim profiles and trim components. Please also specify the required shut-off performance.
Control Configurations
Disc Profile
Standard, reduced, or micro-flow bore. Bubble-tight shut-off models are distinguished from trims engineered exclusively for throttling service.
Sealing Solutions
EPDM or FKM depending on the configuration. Diaphragm versions and steam barrier adaptations are also documented.
Rest Position
Normally closed or normally open actuator configuration available based on your application requirements. The fail-safe position upon loss of air supply must be specified during selection.
Key Technical Features
Construction
L-body and shut-off in 316L stainless steel. 304 stainless steel actuator as per the DEFINOX catalogue.
Piping and Connections
Available in SMS, DIN, and US standards. Confirm the precise pipe diameter and connection type to ensure accurate installation dimensions.
Control Signal
(0)4–20 mA or 0–10 V control signals depending on the selected equipment. An optional feedback board is also available.
Our control expertise ensures your flow rates and pressures align precisely with the right valve plug and positioner selection. We collaborate with you to prepare all required data to verify sizing directly with DEFINOX.
OPERATION AND DOCUMENTATION
Set up stable control
The valve, its positioner, and the operating conditions must be evaluated together.
Specify the entire range
Please provide the minimum and maximum flow rates, as well as the upstream and downstream pressures. Include the media's viscosity, specific gravity, and operating temperature.
Specify setpoint and feedback signal
Specify the available input signal and the required feedback. The control unit must align with your automation system's architecture.
Identify existing configuration
To replace a valve or its components, please provide the nameplate, the identification number, and a photo of the positioner. The DCX3 part number alone does not specify the installed disc configuration.
Your DEFINOX Project, Supported by VAMECA
We help you translate your process data into a fully documented and costed configuration. You maintain a dedicated point of contact in Quebec and across Canada for technical support, documentation, and procurement tracking. Submit your available data below, and our team will work with you to finalize any missing specifications.
Process
Media & Operating Conditions
Media type, operating temperature, viscosity, specific gravity, and any suspended solids.
Sizing
Flow Rates and Pressures
Minimum and maximum flow rates, upstream and downstream pressures, operating pressure, and flushing flow rate.
Installation
Tubing and Fittings
Diameter, SMS, DIN or US standard, connection type, and available clearance.
Order
Signal and Fail-Safe Position
Available control signal, feedback requirements, and fail-safe action upon loss of air supply.
Additional Solutions for Your Process
Compare features and complete your system integration with other DEFINOX product lines.

FLAP VALVE ISOLATION
DEFINOX DCX3
A single-seat check valve engineered for reliable isolation of sanitary process lines.
Discover the DCX3 →

CONTROL AND INDICATION
Sorio Housings
Pneumatic actuation, position feedback, and seamless integration with your automated systems.
Discover Sorio →

SAMPLING SOLUTIONS
DEFINOX PEX / PEAX
Manual or pneumatic valves designed for reliable sampling from pipelines and vessels.
Explore PEX / PEAX →
FAQ

