Valve controllers

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FISHER

Valve controller digital - FIELDVUE™ DVC6200f

FIELDVUE™ DVC6200f digital valve controllers are communicating, microprocessor-based current-to-pneumatic instruments with linkage-less, non-contact travel feedback. Three important functions are performed by the DVC6200f instrument:

Controlling the movement...

Valve controller digital - FIELDVUE™ DVC6200f

FIELDVUE™ DVC6200f digital valve controllers are communicating, microprocessor-based current-to-pneumatic instruments with linkage-less, non-contact travel feedback. Three important functions are performed by the DVC6200f instrument:

Controlling the movement of a valve stem or shaft by converting the digital input signal from the process controller to a pneumatic output signal to the actuator.
Automatic calibration and configuration using the power of microprocessor technology.
Communication capability via the FOUNDATION™ fieldbus protocol to provide instrument and valve diagnostic information.
Registered by the Fieldbus Foundation, the DVC6200f uses the patented linkage-less, non-contact travel feedback technology. It offers an all digital Foundation fliedbus open communication protocol.

When installed in an Emerson Process Management PlantWeb™ system, the instrument will continually run valve diagnostics on-board. If and when problems are detected, the information can be directed to the appropriate personnel, automatically.

Valve controller digital - FIELDVUE™ DVC2000

FIELDVUE™ DVC2000 digital valve controllers are HART® communicating, microprocessor-based current-to-pneumatic instruments. Using technologies and experience learned...

Valve controller digital - FIELDVUE™ DVC2000

FIELDVUE™ DVC2000 digital valve controllers are HART® communicating, microprocessor-based current-to-pneumatic instruments. Using technologies and experience learned...

Valve controller digital - FIELDVUE™ DVC6200

Fisher® FIELDVUE™ DVC6200 digital valve controllers are HART® communicating, microprocessor-based current-to-pneumatic instruments with linkage-less, non-contact travel feedback. Three important...

Valve controller digital - FIELDVUE™ DVC6200

Fisher® FIELDVUE™ DVC6200 digital valve controllers are HART® communicating, microprocessor-based current-to-pneumatic instruments with linkage-less, non-contact travel feedback. Three important...

Valve controller digital - FIELDVUE™ DVC6200 SIS

The operation of many industrial processes involves inherent risk. Instrumented protection systems are specifically designed to reduce the severity of the impact of an emergency event. These systems, such as Safety Instrumented...

Valve controller digital - FIELDVUE™ DVC6200 SIS

The operation of many industrial processes involves inherent risk. Instrumented protection systems are specifically designed to reduce the severity of the impact of an emergency event. These systems, such as Safety Instrumented Systems (SIS), are designed to monitor a process for potentially dangerous conditions. During an emergency event, the SIS instrument activates the valve to move the process to a safe state.
What happens if the valve does not move when an emergency event occurs? Personnel safety, equipment damage, and environmental protection could be at serious risk.

Traditionally, a pneumatic test panel located near the valve provides a means to exercise the valve to ensure operation when called upon. However, the procedures to test the valves are labor-intensive, cumbersome, and may require the valve to be locked in a fixed position or bypassed.
HRSflow

Hydraulic control unit for valves - H.C.U.

The Hydraulic control unit by HRS Flow is especially designed with bistable and mono eletrovalves to ensure high quality performance. This series offers...

Hydraulic control unit for valves - H.C.U.

The Hydraulic control unit by HRS Flow is especially designed with bistable and mono eletrovalves to ensure high quality performance. This series offers two models, from 6 up to 12 mono and bistable electrovalve management modes.

This unit operates by turning the valve gates on a hot runner system. The injecting molding machine operates separately from the hydraulic control unit. This hydraulic control system is composed of a tank, solenoids, electrical board, motor and cooling system.

The operating pressure from the hydraulic control unit can be checked through the manometer.
CAREL

Valve controller - EVD0000E**

The EVD evolution series of controllers for electronic valves is the latest step in the development of the famous CAREL drivers for superheat control.
Compared to the standard EVD, this instrument adds advanced functions and a new user interface that makes it even easier to use and configure.

A new graphic display and a simple programming procedure allow the controller to be started...

Valve controller - EVD0000E**

The EVD evolution series of controllers for electronic valves is the latest step in the development of the famous CAREL drivers for superheat control.
Compared to the standard EVD, this instrument adds advanced functions and a new user interface that makes it even easier to use and configure.

A new graphic display and a simple programming procedure allow the controller to be started by selecting just 4 parameters: refrigerant used, model of valve, type of pressure probe and application (chiller, display cabinet, etc.), selected from the multiple choice menus.


Main functions:
superheat control with auxiliary protectors - MOP, LOP, low superheat
assisted start-up procedure (just 4 parameters)
connection diagram visible on the display
multilanguage graphic display, with help on the various parameters
management of multiple units of measure
user management with passwords to access different levels of configuration
copy parameters to other EVDs using the display
LEDs for monitoring the main parameters
use of ratiometric or 4-20mA transducers (the latter shared between several drivers)
second digital input for defrost management
possibility to use backup probes

Combined with the CAREL ExV series electronic expansion valves, the EVD evolution driver forms an integrated control system for the evaporator that optimises operation and achieves high levels of energy saving.
The CAREL electronic expansion valves are currently available for cooling capacities up to 280 kW.

Valve controller - EVD0000T**

EVD evolution twin is a controller featuring two drivers for double pole stepper motors that independently manages two electronic expansion valves.
It is designed for DIN rail assembly and is fitted with plug-in screw terminals. Each driver controls refrigerant superheat and optimises the efficiency of...

Valve controller - EVD0000T**

EVD evolution twin is a controller featuring two drivers for double pole stepper motors that independently manages two electronic expansion valves.
It is designed for DIN rail assembly and is fitted with plug-in screw terminals. Each driver controls refrigerant superheat and optimises the efficiency of the refrigerant circuit, guaranteeing maximum flexibility, being compatible with various types of refrigerants and valves, in applications with chillers, air-conditioners and refrigerators, the latter including subcritical and transcritical CO2 systems.
It features low superheat (LowSH), high evaporation pressure (MOP), and low evaporation pressure (LOP) protection, and can manage, as an alternative to superheat control, special functions such as the hot gas bypass, evaporator pressure regulation (EPR) and control of the valve downstream of the gas cooler in transcritical CO2 circuits.
The controller can drive an electronic expansion valve in a refrigerant circuit with Digital Scroll compressor, if integrated with a specific CAREL controller via LAN. In addition, it features adaptive control that can evaluate the effectiveness of superheat control and if necessary activate one or more tuning procedures.
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