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| The FLUID TEAM 3-Wege-Proportional-Druckregelventile reduce an input pressure into a lower consumer printing. The consumer printing is proportionally to the magnet stream adjustable. It flows so long oil from fitting P after A to the adjusted printing is reached, afterwards the valve closes. Only if the consumer printing drops, the valve opens the pressure control function of the valve again from P to A. the adjusted printing on the Verbraucherseite is exceeded, comes to the nutsetter (3-Wege-Funktion). It flows so long oil from fitting A after T, until the adjusted printing is reached. |
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| With more than one million BARTON DPU-based instruments in service around the world today, Cameron's Measurement Systems division is a premier supplier of reliable and accurate chart recorders, indicators, switches and pneumatic controllers. Originally developed in the early 1920s, our differential pressure technology features a welded bellows assembly that increases accuracy while dramatically reducing the effects of wear. To facilitate quick and easy repairs all DPU based instruments are supported with pre-calibrated exchange or repaired sub-module bellows assemblies. |
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Press Man is a simple but yet efficient controller for maintaing constant pressure in heating and ventilation environments. It is charactized by a very robust construction and extremely simple user interface.
Press Man controls the HVAC pressure from an pressure transmitter with an analog output mounted directly in the ventilation system. Difference pressures can be obtained by incorporating mecanical blends etc. IP54 grade and integrated keys / display makes Press Man well suited for many applications.
Press Man has a setpoint, which is controlled by the arrows. A single press will put the setpoint one up or down, holding the arrows will make the setting change fast while pressed. Measured pressure will be displayed pr. 5 sec after keys have been released
Press Man has two relay outputs, the first is used on ON/OFF by the key setting, the other is used for alarming. ON/OFF is activated as the key is activated, the alarm output will be active when the output can not be reached whithin 30 minutes !. Means, that if the output internally is UNDER or OVER the MIN/MAX settings, the relay will activate. Flashing LO or HIGH in display
Press Man can indicate the real output for the attached speed controller, OR, it can indicate the real input from the attached pressure transmitter. Both values will indicate in percentage (0-100) of input and output)
Press man can be 100% stopped, pressing the ON/OFF button. Display will indicate OFF and the DC output will be forced to 0, as will be the 2 relays. Press man has individual settings for minimum and maximum speed for the attached speed controller. Settings to be controlled by MIN/MAX buttons. Parameters for Proportional Band and Integration Time is done from the keypads as any other parameter. The PI regulator will meassure the pressure, compare it to the setpoint and try to maintain the dc output to make the real pressure as close to the setpoint as possible. |
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Air volume control equipment for VAV and CAV boxes
- In the comfort zone
- In the laboratory
- Stand-alone solutions
- Integrated solutions with bus or conventional control
- Pressure control for Line and room pressure applications |
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Features:
- Manual PID Tuning
- Fast Sampling Rate - 100mS
- Control Response Time - 100mS
- PV Retransmission (4-20mA)
- AUTO/MANUAL Calibration |
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KOFLOC 2203
The KOFLOC Variable Secondary Pressure Flow Controller Valve MODEL 2203 SERIES is a control valve for precise control of minute gas flow and maintaining constant flow under fluctuating secondary pressure (outlet), provided the supply pressure remains constant. This characteristic makes it a must-have preliminary valve in many flow control mechanisms. Constructed using high precision parts, the design of the MODEL 2203 SERIES transforms the rotation of the regulating screw to into linear motion of the needle without subjecting it to gaps and vibrations produced by the screw, to ensure stable and even control of minute flow.
FEATURES
♦ Excellent flow stabilization
♦ Clean construction
♦ Independent from secondary pressure fluctuations
APPLICATIONS
♦ Gas chromatography
♦ Environmental analysis
♦ Atomic absorption spectrometry
♦ Gas mixing
♦ R&D
♦ General industrial use |
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KOFLOC 2412/2412M
The KOFLOC Precision Needle Valve MODEL 2412 SERIES is designed to control minute flows with precision and ease, controlling minute flow stably and accurately, as low as 0.5 ML/MIN. It has been widely used in numerous applications from general industrial applications to analytical equipment such as AAS (Atomic absorption spectrometer). The needle orifice of the MODEL 2412 SERIES has a temperature compensating structure (US P.A.F.) achieving the characteristic of 0.3%/˚C for gas temperatures between 15 ˚C to 35˚C. MODEL 2412 SERIES includes 15 different needle valves to offer optimum flow control corresponding to various flow levels MODEL 2412M SERIES with Multi-Dial is a precision needle valve with a radial gauge to give simple means to approximate flow volume
FEATURES
♦ Accurate control of minute flow
♦ Wide needle variation
♦ Non-rotating needle
♦ Wide operating temperature range
APPLICATIONS
♦ Atomic absorption spectrometer
♦ Burn control
♦ Research and development
♦ Air sampler
♦ Filter testing
♦ Burn control
(2412M)
♦ Can be used as a substitute for a flowmeter
♦ Detection of flow pass resistance fluctuations |
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