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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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Pressure controls serve various functions, which may be divided into control and protection functions. Examples for control functions are compressor cycling, pump-down or defrost control. Protection functions include, pressure limiting and cut out against excessive pressures, against loss of charge or for freeze protection.
Our pressure controls are equipped with display scale and pointers to indicate the approximate settings. The display scales are printed in relative pressure units "bar" and "psi". For precise setting of the controls, external gauges must be used.
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P820
motor-controlled, for air, vacuum or water
of brass, 0 - 10 V or 24 V
G1/2 - G1, 0 - 1000 / 3500 l/min
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%u2022 The FLOWTRONICD consists of a fast, direct-acting 2-port proportional valve, a pressure sensor
unit and digital control electronics.
%u2022 Especially designed for applications placing extreme dynamic demands on fl ow control.
%u2022 Control and maintenance of constant and even fl ow, irrespective of outside infl uences.
%u2022 Precise measurement of fl ow with two sensors.
%u2022 Adaptable to different applications due to the use of digital control electronics that can be
confi gured by PC over a USB interface.
%u2022 Auto-tune function and ASCO FlowCom PC software provide for quick and easy start-up.
%u2022 Diagnosis over integrated LEDs or the ASCO FlowCom PC software.
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%u2022 The FLOWTRONICD consists of a fast, direct-acting 2-port proportional valve, a pressure sensor
unit and digital control electronics.
%u2022 Especially designed for applications placing extreme dynamic demands on fl ow control.
%u2022 Control and maintenance of constant and even fl ow, irrespective of outside infl uences.
%u2022 Precise measurement of fl ow with two sensors.
%u2022 Adaptable to different applications due to the use of digital control electronics that can be
confi gured by PC over a USB interface.
%u2022 Auto-tune function and ASCO FlowCom PC software provide for quick and easy start-up.
%u2022 Diagnosis over integrated LEDs or the ASCO FlowCom PC software.
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The VFL volume flow limiter simply deals with what is normally the tedious and xpensive process of adjusting flow rates in ventilation and air conditioning systems. Easy installation and precise operation saves precious time on site. The required volume flow rate can be simply set up at the point of installation when the VFL is fitted into the duct work.
The VFL controls to the set volume flow rate keeping it constant within strict tolerances even when the upstream pressure changes.
circular
4 – 250 l/s
15 – 900 m³/h
8 – 530 cfm
Δp: 30 – 300 Pa
Ø 80 – 250 mm
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Description
- Circular volume flow controller for low velocities
- Suitable for constant and variable volume flow systems
- Selection according to nominal size of the duct system
- Commissioning in one step
- Flow rate adjustment without special tools
- Retrofit of actuator easily possible
Characteristics
- Mechanically system powered, without external power suplly
- The flow rate can be set with an external scale
- Highly precise regulation of the volume flow to ± 10 %, relative to Vnominal
- Orientation-independent and maintenance-free
- Suitable for supply or extract air
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TROX VARYCONTROL TVR-Easy type air terminal units are circular control units and were developed for the control of air flow in supply and extract volume flow systems.
The nominal size is selected according to the flow rate range specified by the consultant.
The setpoint values are set exactly using the flow rate scale attached to each controller.
Characteristics
Flow rate set-up without software and hardware (adjuster units)
Functional check by indicator light and service button
Aerodynamic function test of each box using a dedicated test rig
form: circular
10 – 1,675 l/s
36 – 6,030 m³/h
23 – 3,549 cfm
Δp: 20 – 1,000 Pa
Ø 100 – 400 mm
Casing air leakage flow rate complies with DIN EN 1751, class A
Control damper closed blade leakage complies with DIN EN 1751, class 4 (nominal size 100 and 125, class 3)
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Self-operated pressure, differential pressure and flow regulators with wide set point ranges for process and supply engineering.
The millibar version of the regulators is perfectly suited for tank blanketing.
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High tech and sturdy air operated valve, with a floating
plug seal, meeting stringent use criteria.
An extra thick body of the actuator and of the valve, ensuring a good resistance to mechanical and thermal distorsions.
A modular design enabling the following configurations:
Shut off valve DCX3 L
DCX3 T
DCX3 X
Divert valve DCX4 L/L
DCX4 T/L
DCX4 L/T
DCX4 L/X
PFA seals quality ensures a complete sealing at high temperature and a good resistance to aggressive products.
Plastomer seal can be replaced by elastomer seal
Single or double acting connection
With plastomer seal, vertical setting up (especially for DCX4)
Dimensions 1” - 1-1/2” - 2” - 2-1/2” - 3” - 4” - 5” - 6” Material
Body: 316L stainless steel
Shut-off unit: 316L stainless steel
Manual or automatic operating devices: 304 stainless steel
Plug seal: PFA and elastomer
Stem seal: viton, EPDM, silicone
Options
• Signal back equipment on the top of the actuator
• Sterilization of the stem through an upper guide bearing
• External = 47 RA max (150 grit)
• Internal = 32 RA max (180 grit)
Upgraded finishes upon request:
Surface Finish
Variants
Plug and body machined for a metal to metal sealing (without seal)
Elastomer sealing (specific plug with viton, EPDM o-ring)
Manual operator device (instead of the actuator
Tank bottom type
Long stroke valve available upon request
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Product description
- Eaton® Flow Dividers are available in priority, proportional, variable and load sensing
versions with a wide range of standard flow ratings and relief settings.
- Eaton load sensing priority valves provide dependable flow on demand for load sensing steering, braking or other priority functions while allowing excess flow to be used for auxiliary functions.
- These products can be used in virtually any mobile application.
Benefits & Customer Values
- Eaton's global leadership in the Steering Unit is a driver for LS Priority Valves
- Used with fixed or variable displacement pumps, a dynamic signal system increases machine performance and stability.
- LS priority valves available as In-Line or Bolt-On configurations
- Flow dividers can be integrated into other components including gear pumps, limiting the need for additional plumbing.
- These products can be used in virtually any mobile application.
Specs
- Priority Flow Dividers
- Rated pressure up to 195 bar/2800psi
- Rated flow up to 175 LPM/45GPM
- LS Priority Valves
- Inlet & EF pressures up to 310 bar/4500psi
- CF pressure & Max CF relief setting 276 bar/4000psi
- Rated flow up to 240 LPM/63GPM
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Flow-control-valve
Flow-control-valve lor direct mounting. Optional: Flow-control combined with ball-valve Mounting position: all directions Medium: HLP46
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Flow 1,2,3,4,6,8,10,12,16,20,25,30 l/min. water
Connection G 1/2, G3/4 (up to DN 500 on request)
Material brass, st. st.
Max. pressure 10 bar
Max. temperature 300 °C
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These valves control the reciprocating and rotating speed of hydraulic actuators, A variety of flow control valves including pressure and'or temperature-compensated Mow control valves is available.
Flow Control Valves/Flow Control and Check Valves
These valves are pressure and temperature compensating type valves and maintain a constant flow rate independent of change in system pressure (load) and temperature (viscosity of the fluid). They control the speed of the actuator precisely. The valves with an integral check valve allow a controlled flow and reverse free flow. Repeated resetting can be made easily with a digital readout.
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The fine threads of the needle valve permit excellent adjustment for precise control of flow. The flow is restricted in both directions and is adjustable from 0 to the equivalent flow of a 0.025" diameter orifice. The 7-turn adjustment needle valves are available in two models, the standard model and the fine adjustment model. The standard adjustment model has a pin angle of 6° with 10-64 threads; the fine adjustment model has a pin angle of 4° with 10-80 threads.
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Connection guaranteed: a wide range of functions and variants - always harmonised to the respective requirements.
• Exhaust air/supply air flow control or without non-return function
• Flow rate 15 ... 4,300 l/min
• Threaded connectors M3 ... G3/4
• Push-in fittings QS3 ... QS 12 or PK-3 ... PK-6
• Variants with increased corrosion resistance
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LS-V05C
Proportional Pneumatic Control Valve
The LS-V05C is an enhanced version of the LS System proportional, directional control pneumatic valve for high performance applications such as medical equipment, test & measurement systems, advanced automation and animatronics. The valve is designed to be paired with Enfield Technologies driver or controller/driver electronics such as the LS-C10, LS-C41, and C2s.
Features:
* Proportional
* High Speed and Flow
* Whisper Quiet
* Vacuum Capable
* High Linearity
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General Description
Uni-directional
316 Stainless Steel or Brass in-line flow regulators for uni-directional operation (free flow return).
Bi-directional
316 Stainless Steel or Brass in-line flow regulators for bi-directional operation (separate flow control in each direction).
Operating Fluids
- Gases
Filtered lubricated or non-lubricated air, inert gas, sweet (natural) gases.
Sour gas option available
- Liquids
Low pressure hydraulic, mineral oil or water.
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30008
High Flow Filter Regulator Extractor (use for all models)
3 Micron
30003
High Flow Filter Regulator (use for all models)
5 Micron
30002
Low Flow Filter Regulator (use for 0145, 200, 201, 0190 and 602 models)
5 Micron
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The miniature Preset Flow Control is ideal for many applications involving pneumatic systems, including the control of cylinder speed.
The operation of the flow control is based on the movement of a small disc. The flat surface on one side of the orificed disc seals and permits flow through the orifice. The amount of flow permitted in the reverse direction is determined by the orifice size. In the forward direction full flow is permitted. The flow controls design allows a maximum supply pressure of 75 PSI with a minimum cracking pressure of less than 10” H2O. Orifice sizes are available from .004” to .040”.
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Throttle valves, restrictors and flow control valves
Flange-, sandwich- and screw-in cartridge construction
Nominal sizes NG3-Mini, NG4-Mini, NG6 and NG10
Screw-in cartridges in accordance with ISO 7789, nominal sizes M18x1,5, M22x1,5 and M33x2
Manual valves
Proportional valves
Maximum pressures up to 350 bar
Volume flows up to 100 l/min
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Types:
P.C. Flow Regulator
P.C. Flow Control
Priority Style P.C. Flow Regulator
Compensator Valves
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MODELS :
V2FIC02 Mounting (subplate)
V2FIC03 Mounting (subplate)
SIZES : 3/8 " TO 3/4"
Max. Pressure : 500 psi(350 bar)
FLOWS : 13 - 29 gpm / 50 - 110 lpm
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A breakthrough lightweight 2multi-port valve that provides high-flow processing in single, duplex or triplex configurations.
Modularly expandable, allowing for the addition of extra tanks to meet increased demand
Elite Smart Start, the most advanced controller on the market today
Certified to NSF-61 standards
Robust, non-metallic design
Unique start signal is easily integrated into complex control systems
Capable of co-current or countercurrent regeneration of ion exchange
High backwash flow rates allow for effective backwashing of filter media.
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APPLICATION:
To control the flow of Water, Air, Gas, Solvents, Vacuum and any other fluids not reactive with construction materials and free of sediment. Buna N seating of the pilot and main orifices make the valves ideal for TIGHT SEATING, LOW PRESSURE and LOW FLOW conditions. Valve operates from zero to maximum differential pressure indicated in table. Valve must be mounted in horizontal pipe with solenoid enclosure vertical and on top.
OPERATION:
Valve closes when energized and opens when de-energized. When the coil is energized the plunger presses the poppet, closing the pilot orifice, and opens a bleed passageway to permit pressure to build above the piston and seat it. Upon de-energizing the coil, the pilot orifice is opened, relieving the pressure above the piston allowing it to leave its seat. The bottom spring allows the valve to operate at zero pressure drop.
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The Brand, Series 83 is a two port, non-adjustable, pressure compensated, inline flow control, with free reverse flow. The amount of flow is determined by the diameter of the orifice in the compensator piston. The spring and piston are held in place when it is connected to an #8 SAE male fitting. This flow control is inexpensive and gives the customer the ability to change the flow rate by swapping the piston with another that has a different size orifice.
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KOFLOC 2600T, 2600S, 2600PVC, 2600PPS
The KOFLOC 2600 Constant Flow Valve for Liquids MODEL 2600 SERIES is a high-performance constant flow valve for liquids and chemicals. The MODEL 2600 SERIES are available in All-Teflon, PPS, Stainless steel and PVC to cover most all chemicals, pure water, ultra pure water and general applications. These valves holds water and chemical flows constant against fluctuations of both primary and secondary pressure. It uses high-precision parts including the diaphragm valve to ensure even transition. It is also equipped with bubble purge taps to improve control accuracy, especially at initial flow setting.
FEATURES
- Excellent control and even transition
- Independent of primary and secondary pressure fluctuations
- Non-metal material (PTFE) fittings
- Suitable for most liquid chemicals
- Bubble purge taps
APPLICATIONS
- Ultra-pure water analyzer
- Environmental instrumentation
- Food industry
- Chemical processes
- TOC analyzer
- Fluid film sprayer
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Flow regulators
RFU M5 M5 uni-directional flow regulator
RFU 1/8.1 1/8" uni-directional flow regulator, nominal orifice 1.2
RFU 1/8.2 1/8" uni-directional flow regulator, nominal orifice 2
RFU 1/8.3 1/8" uni-directional flow regulator, nominal orifice 3.2
RFU 1/4 1/4" uni-directional flow regulator
RFU 3/8 3/8" uni-directional flow regulator
RFU 1/2 1/2" uni-directional flow regulator
RFB M5 M5 bi-directional flow regulator
RFB 1/8 1/8" bi-directional flow regulator
RFB 1/4 1/4" bi-directional flow regulator
RFB 3/8 3/8" bi-directional flow regulator
RFB 1/2 1/2" bi-directional flow regulator
RFUM 1/8 1/8" uni-directional flow regulator with knob
RFUM 1/4 1/4" uni-directional flow regulator 1/4" with knob
RFP 1/8.2 uni-directional flow regulator 1/8", nominal orifice 2, sensitive regulation
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Gas fuel control (metering) valve for industrial and aeroderivative gas turbines.
Used On:
Co-Generation Packages, Gen Set Packages , Compressor Plugs
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Flow rate control valve for automatic regulation of a constant flow rate in the case of changing supply pressures.
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