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SERIES 730 MASS FLOW CONTROL VALVES
The Series 730 Mass Flow Control Valves were designed by Dr. Jerry Kurz in about 1980 to provide a simple, compact electrically operated, precise metering valve for applications requiring a high flow rate turn-down ratio. The unique Kurz design utilizes a rotor having a helical shape machined into its bottom face, opposite an inlet orifice and an outlet orifice. The diameter, separation and the helical depth were designed to provide a nearly linear flow coefficient (Cv) with angular rotation. A simple high torque gearmotor (24 VDC) was selected for cost and simplicity. Since the Series 730 is a "fail-as-is" design, the motor is only used when changes are required, which greatly extends the motor life. The Series 730 combines the electric drive motor, the valve body, rotor and limit switches into a well-designed, integrated package. The typical turn-down ratio is 50:1, due to the incorporation of a pressure assisted shut-off disk which becomes active near the shut-off position. The Cv range is from 0.05 to 10.0 in three convenient body sizes. The Series 730 is constructed of 316L stainless steel, with Viton O'Rings and an o'ring sealed motor cover. It operates as a two-wire loop-powered device normally powered and controlled by one of the Series 155 Mass Flow Computers and used with a Kurz In-Line Mass Flow Element. The inlet and outlet fittings are Schedule 40 pipe with MNPT end connections or Class 150 flanges. Because of its rotary design, the Series 730 is not as affected by abrupt line pressure changes as are pneumatic control valves
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Model VCD 1000 Variable Constant Differential Flow Controller is designed to control low gas flows at constant mass flow rates regardless of downstream pressure fluctuations. The Model VCD 1000 design yields extremely linear flow output in relation to adjusting stem rotation while offering bubble-tight shut-off.
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80000 Series
Masoneilan's 80000 Series 3-way control valve is designed for either combining or diverting flow applications. It provides large flow capacities with low-pressure recoveries, using a flow-to-open plug design.
Consolidated Pressure Relief Valves
Dresser Consolidated is a worldwide leader and full service provider of dependable pressure relief valve solutions. We design, engineer, manufacture, market and service the critical equipment that forms the backbone of pressure relief management throughout industries across the world.
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Demand continues to mount for improved comfort conditioning combined with lower operating costs. New architectural designs have created real problems for contractors and engineers to maintain humidity control at reduced loads, and to control load variations. Refrigeration and air conditioning systems are usually designed to provide a given capacity at maximum conditions. These operate with little fluctuation throughout a narrow load range. However, only the larger size machines make any provisions for operation at reduced capacity. In some systems, integral cylinder unloading, the installation of a gas engine drive with variable speed control, or even multiple smaller systems, provide a logical solution.
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Superior Design:
Hayward all-plastic diaphragm valves have been specifically designed to perform in the most demanding liquid, gas, and slurry applications in both on/off and modulating service.
Position Indicator:
Hayward's standard highly visible, beacon-type position indicator will always give positive position indication, unlike rising stem indicators that can be inaccurate because of misadjusted stems. Sight panels are made from clear Eastar®.
Diaphragm Saver:
The Diaphragm Saver travel stop is a standard feature on all sizes of Hayward Diaphragm Valves. Its special design prevents overcompression of the diaphragm and prolongs its service life.
No Corrosion Problems:
These valves have no wetted metal components. The valves will never fail because of corrosion and they do not require painting or epoxy coating to stand up to aggressive environments.
True Union Design:
Hayward Diaphragm Valves with socket or threaded connections have a true union design so that they can be removed from the line without having to disconnect piping connections.
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Shut off valves are used in the liquid line of a refrigeration system. They are generally used as a manual shut off valve.
The ABV isolates suction, discharge, and liquid line pipework during maintenance shutdown periods.
Featured with :
- Forged brass body
- Hermetic design
- Compatible with new refrigerants/lubricants
- Full internal ports through 2 1/8"
- Bi-directional fl ow characteristics
- Valve stem cap retained by strap attached to main body
- Integrated access port available on all sizes
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Shut off valves are used in the liquid line of a refrigeration system. They are generally used as a manual shut off valve.
The ACK check valve is a normally closed magnetic check
valve that prevents reverse refrigerant fl ow in liquid lines and compressor discharge lines.
Featured with :
- Copper Connection Sizes 1/4" through 2-5/8"
- Hermetic Spun Copper Design
- Near Zero Internal Leak Rate
- Magnetic Checking Action
- Built-In 30 Mesh Stainless Steel Strainer
- Can Be Installed In Any Position
The ABV isolates suction, discharge, and liquid line pipework during maintenance shutdown periods.
Featured with :
- Forged brass body
- Hermetic design
- Compatible with new refrigerants/lubricants
- Full internal ports through 2 1/8"
- Bi-directional fl ow characteristics
- Valve stem cap retained by strap attached to main body
- Integrated access port available on all sizes
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Thermostatic expansion valves are designed for a wide range of air conditioning, refrigeration, heat pump and chiller applications.
Our integral valve line includes valves for commercial and refrigeration applications, as well as heat pump and residential applications. The "Take-A-Part Series" valves are the answer to your unique needs, available for almost any type of application, temperature range, or any known refrigerant. We also offer a complete line of specialty valves. Consult us for your specific system requirements.
The Thermo® Expansion Valve is a precision device designed to regulate the rate of refrigerant liquid flow into the evaporator in the exact proportion to the rate of evaporation of the refrigerant liquid in the evaporator. The amount of refrigerant gas leaving the evaporator can be regulated since the Thermo Valve responds to the temperature of the refrigerant gas leaving the evaporator and the pressure in the evaporator. This controlled flow prevents the return of refrigerant liquid to the compressor. The Thermo Expansion Valve controls the flow of gas by maintaining a pre-determined superheat.
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Style 575 Angle Ball Valve
The Dresser® Style 575 Angle Ball Valve provides dual service... as a main-to-service compression end tee connection, and as a shut-off valve.
Constructed of a unique combination of a rugged ductile iron body and a highstrength engineered plastic plug, the "575" valve offers a low torque 90-degree operation with positive, bottle-tight shut-off at pressures up to 125 psi.
Designed for durability under all service conditions, the interface of ductile and engineered plastic components eliminates any possibility of valve freeze-up due to corrosion.
The "575" eliminates the presence of an isolated metallic valve in a plastic service. The ductile material in the valve body is compatible with the cast iron main, so there's no need for anoding and monitoring. Plus, an optional AL-CLAD® Plastisol coating can provide even greater external corrosion protection. The compression end for connecting the service is of a time-proven Dresser design and meets all the requirements of D.O.T. 192.283(b), providing a permanent seal and pull-out resistance greater than the PE tubing in tension.
The "575" is available in inlet sizes 1-1/4" or 1-1/2" MIPT and an outlet size of 1-1/8" OD, but it can be readily adapted to other outlet sizes as required.
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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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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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Angle Flow Control valves are designed to provide accurate flow control in a compact, labor saving package. Features like built in push-in fittings, pre-applied thread sealant, convenient swivel design and unique needle design all add up to a package that will save time, money and energy when accurate control is needed on pneumatic actuators.
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Flowview 100i
The solution for controlling of stock and consumption. Flexible programming of the Micro-PLC possible. All typical functions of a PLC available. Flexible programming of the visualization and information about connected devices is based on the IEC61131-3 conform programming software. Connecting of different MIB flowmeters via RS-485 interface or the I/Os.
It is also possible to connect foreign devices on the I/Os. Data transmission via Ethernet or GSM is available optionally. The Flowview 100i is a compact All-in-One controlsystem with integrated touchscreen, I/O-Module, networking option and MicroSD card slot.
Due to it´s specially designed high-resolution resistive touchscreen the Flowview is suitable for outdoor and indoor applications. (if mounted in a panel, protection class IP 67)
The Flowview is programmable by the programming software "Cscape". It is possible to control a range of different processes from small to large applications.
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Featuring 5 digits of rate and 8 digits of total, the
HIT-2A is a DC, AC, loop or battery powered indicator
capable of accepting magnetic pickup, DC pulse or switch
closure inputs. The unit can be ordered with an optional
loop powered 4-20mA output. The HIT-2A uses the 4-
20mA loop to provide power when this output is used.
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The contactless measurement and the lack of moving parts, allow a precise determination of the mass flow without any wear to the systems components. This outstanding advantage is applicable on various mechanical conveying systems like:
belt conveyors
screw conveyors
troughed chain conveyors
steel plate conveyors
bucket conveyors
free fall in chutes or pipes
This makes a radiometric bulk flow measuring system particularly interesting for various applications.
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The C-LEVER® II by REMBE® sets the benchmarks in the field of industrial flow metering.
Its unique technique achieves an excellent accuracy of ± 0,25 % of the volumetric range for nearly all flowing bulk and solids.
The accuracy of the C-LEVER® II is almost independent from product, its density, form, friction and elasticity. Severe changes of flow and/or pulsations caused by rotary valves or screw feeders do not influence the accuracy.
Compared to conventional measuring systems - based on volume, speed or weight - the REMBE® system measures the product flow inline.
The C-LEVER® II is made without any mechanical moved parts (actuators, pivot bearings, belts). As a resulting from this no post calibration is required. All electronical components are mounted outside of the product flow.
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Digital alternative for a VA meter with totaliser and alarm functions.
MASS-VIEW(r) has an OLED display showing:
- actual flow rate (bar graph and actual value or percentage)
- desired flow units
- type of gas (7 pre-installed gases)
- totalized flow
- min. and/or max. alarm
Other features are:
- Freedom from parallax error
- Virtually independent of pressure and temperature variations
- Low pressure drop
- Wide flow ranges
- Fast response
- High accuracy
- Alarm and counter functions (2 alarm contacts available on meters)
- Analog (0..5 Vdc) and digital communication (Modbus-RTU, RS-232 interface)
- Configurable password protection
- 7 pre-installed gases available (Air, N2, O2, CO2, Ar, CH4, C3H8) or He or H2
- 4 selectable ranges (100%, 50%, 25% and 10% of maximum fullscale range)
- Digitally calibrated
- 3 year warranty
You can order these instruments online and your order is shipped within two working days.
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KOFLOC 2503F/2504FR
The KOFLOC Variable Area Flow Meter with Integrated Pressure Regulator MODEL 2503F SERIES uses MODEL 2203 SERIES precision pressure regulator valve to maintain constant flow into the secondary system even under varying load pressure at the outlet. The MODEL 2504FR SERIES uses MODEL 2204 SERIES precision pressure regulator valve to maintain constant flow under supply pressure variance at the inlet. Both models are based on the KOFLOC RK1400 SERIES High Precision Variable Area Flow Meter that employs a flow-tube manufactured with a proprietary glass molding technique. It is a premium variable area flow meter that counters the perception of rotameter as being only good for a rough estimate.
FEATURES
♦ Constant flow under varying pressure.
♦ Highly accurate measurement
♦ Stable flow control characteristics
♦ Sanitary construction for analytical applications
♦ Minute to medium flow ranges
APPLICATIONS
♦ Analyzing system
♦ Pressure digressing situations
♦ Precision measurement
♦ Bio-Engineering
♦ Gas mixing
♦ Flow monitoring
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Barksale offers a range of flow sensors for common flow detection applications for liquid media.
Operation of the BFS flow switch is based on the movement of a spring-loaded piston within a cylindrical tube.
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