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901 Prescal® pressure switches with scaled adjustment knob
Adjustable pressure switch monitoring overpressure, vacuum or
differential pressure of liquid and gaseous – also aggressive –
media.
The pressure switch uses a scaled adjustment knob to enable
the adjustment of trip and reset pressure without the use of a
screwdriver.
Various versions with overlapping adjustment ranges are available. These cover the overpressure range of 5 mbar to 12 bar, as well as the vacuum range of -5 mbar to -700 mbar.
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PS-B pressure switches The miniature automatic reset pressure switch, It's one of the electrical switches that control the circuit open or close on, when the pressure of the controlled medium increase or decrease. cable electric connector or quick connect terminal can be selcted, It's used widely in automobile refrigeration system, oil pump, air pump and others.
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These are the real low pressure switches 930 Climair to monitor air flow, fans or filters starting from 20 Pascal up to 4.000 Pascal. OEM switches for manufacturers of air handling units, or individually packed for the field service and installation business.
The products can be marked on the packing to your company CI with labels.
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Differential Pressure Switch
Pressure Switch PS600The switches can be used in ventilation, air conditioning and in particular for monitoring air ducts, air filters and fans. The switches are suitable for air and non-aggressive gases.
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Applications:
Pressure switches with bourdon tube measuring system have a long service life and are cheap and robust at the same time due to the prevalence of bourdon tubes.
Special Features:
- range -1-1,5 bar to 0-600 bar
- epoxy coated die-cast aluminum enclosure
- ingress protection IP 65, NEMA 4
- ambient temperature -40 to +85°C
- GAS Ex-d DUST Ex-tD Gr.II Cat. 1/2 GD
- PED certificate
- 1 or 2 independent set points, SPDT
- fixed or adjustable dead band
- high switching capability 15A/220Vac
- option NACE, off-shore, tropical, ammonia, geothermal
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Electro-hydraulic pressure switches are devices, which, when set under pressure close or open electrical contacts. They are widely used in applications where it is intended that, once a pre-set pressure is achieved and exceeded, an electrical switching command or signal should be triggered for further working cycles.
Many different versions (with pressure setting on a dial, with main and secondary switch, screw-on pressure switches) enable their use in many applications.
There is a design related difference of 8 ... 20 % between the upper switching point and the lower switching point. Only the electronic pressure switch type DG 5 E gives provision to select two independant switch points
and to set the hysteresis.
Type DT is an analogical pressure sensor.
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• Measuring ranges from -500 / +1000 Pa to -1000 / + 2000 mbar
• RCR relay output 3A/230 Vac. Power supply 24 Vac/Vdc
• Visual alarm, red LED in front
• ABS IP65 housing, with display
• Quick and easy mounting with the “1/4 turn” system with wall-mount plate
Join our distribution network all over the word....Contact us !
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Pressure transmitter, pressure switch Pressotronic
- operating pressure up 600 bar
- compact design
- up to 4 programmable set points
- alternative 1 analogue output + 1 programmable set point
- window and hysteresis function
- two outputs programmable 1-100 Hz
- direct or remote installation
- uneffected by cable length
- LED display with status indication
- pressure switch display 270° rotatable
- standardized manu structure
- max./min. memory
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Applications:
- Machine building
- Machine tools
- Control and feedback control systems
- Hydraulics / Pneumatics
- Pumps/ Compressors
Special Features:
- Compact design
- Free of charge test report
- Certified quality
- Large stock program
Specifications:
- Pressure ranges: 0 ... 1 bar up to 0 ... 600 bar relative, 0 ... 1 bar up to 0 ... 25 bar absolute
- Non-linearity 0.25 % BFSL or 0.5% BFSL
- Signal outputs: 4...20 mA, 0...10 V, 0...5 V, 1...5 V, 0.5 ... 4.5 V and more
- Process connections: G 1/4 DIN 3852-E, G1/4 B, G1/4 female, 1/4 NPT, 7/16-20 UNF and more
- Electrical connections: DIN connector A and C, M12x1, 2m cable
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The factory set pressure switches series 901
The switching pressure can be defined at a value of between 5 mbar and 12 bar in the overpressure range and between -5 mbar and -900 mbar in the vacuum range.
The main area of use for the compact pressure switches series 901 is in monitoring filling levels and filters, as well as in monitoring overpressure, vacuum or differential pressure in closed systems. These pressure switches are suitable for liquid and gaseous media including aggressive media.
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Switches, regulators and display devices permit reliable monitoring of the vacuum system. An important aspect is that these devices must be perfectly matched to the system being monitored, but this is no problem with the available spectrum of devices!
- Vacuum switches
- Pressure switches
- Combined vacuum/pressure switches
- Accessories for vacuum switches
- Measuring and control devices
- Safety devices
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Electro-Mechanical Vacuum Switches
These switches use a vacuum actuated membrane to operate a mechanical micro switch. All switches can be wired normally closed or normally open. The vacuum level to which the switch operates can be set with the manually adjustable and lockable screw. The VES-02B comes with two fixing holes molded into the housing, whereas the VES-01B comes with fixings in two extended ears.
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The efector 500 is based on a ceramic measuring pressure cell which converts the measured quantity of pressure into a capacitive signal as a result of the deflection of a diaphragm. A microprocessor controls the evaluation of the electrical signal. For the efector 500 the system pressure is directly indicated on the unit by an LED display.
The extraordinary mechanical characteristics of the efector 500 result from the following design features:
The measuring pressure cell is designed in such a way that the diaphragm is supported by the base in the case of overload pressure. This leads to a high strength against hidden pressure peaks at values outside the measuring range.
The measuring pressure cell consists of ceramic which has ideal elastic features thus ensuring a high long-term stability of the diaphragm.
The electronic circuitry is made in film technology, i.e. a flexible, temperature-stable and extremely resistant polyimide film is used as a carrier for the SMD components. In conjunction with a special potting compound this leads to a high shock and vibration resistance.
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The LF-32 series is an adjustable differential pressure switch that is designed with a scaled adjustment knob to make changing a setpoint simple. This switch is best for applications that monitor air flow in ventilation ducts and industrial cooling equipment. Also offers overheating protection for fan heaters and frost protection for heat exchangers.
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A switch design that combines gold crossbar contacts with an all-in-one-welded contact terminal construction that delivers reliability and extended life in harsh low-pressure environments. The MAM005 line of ultra-low pressure, vacuum, and differential switches can be ordered preconfigured for immediate shipment, as a standard product tailored to user needs, or custom-designed for special applications. The switches come configured with different port orientations to fit mounting requirements and come in nine different diaphragm materials. The devices can be selected to assure chemical compatibility with most mediums and reliable operation at temperature extremes.
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These pressure switches are normally used to detect filter clogging. They are available in electrical or visual contact versions.
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Furnace & Water Heater Air Proving Switch
The Mamco / Lefoo LF-31 series switch was designed for the HVAC industry where safety and reliability are essential. This series has also proven to be a viable solution for many pneumatic OEM applications.
Available in vacuum, differential and pressure models, with fine silver or gold cross bar contacts. The LF-31 is capable of detecting pressures, as low as, .05" of water. Factory calibrated units maintain set point tolerances of +/- 10% over a temperature range of -40º F to 185º F due to it's molded silicone diaphragm and the stability of it's glass filled polyester body.
MAMCO offers multiple electrical terminations and mounting options, as well as, bleed holes and three different size orifices. This switch series is not only the leading product in the market offering the highest quality and reliability but is also the most economical.
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DP indicating switch
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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Do you attach special value to the durability and performance of your vacuum instrumentation? We as developer and manufacturer of vacuum transducers, gauges, vacuum meters and controllers supply products which will exceed your expectations.
Thyracont Vacuum Instruments GmbH supplies vacuum measurement and control instruments for rough to ultrahigh vacuum.
All our products are "Made in Germany"
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MAMCO/LEFOO LF-20 PRESSURE SWITCH
Because of its special internal design this switch can tolerate high pressure spikes inherent on many pressure systems. The switch is factory calibrated but in the case that adjustment is needed in the field the switch offers an adjustment screw to facilitate any fine tuning required. The standard diaphragm employed by Mamco is polyimide (Kapton) making it compatible with many gases and liquids. Several other diaphragm materials are available that make the switch compatible with many mediums. Various electrical terminations are available including ¼ tabs and a metric-pack connector that forms a tight seal when connected.
Because of their ruggedness the Mamco LF-20 is a popular choice for the many OEM applications.
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Anyone who uses ultra-low pressure, vacuum and differential switches can tell you that they will inevitably wear down in low pressure environments, causing contact erosion, loose terminals, switch instability and leakage.
The result? Equipment failure, downtime, and productivity setbacks no busy manufacturer can afford. Fortunately, now there's an alternative-
New Solution to Ultra Low Pressure Switch Problems Helps Avoid Leakage, Set Point Instability and Contact Resistance- an innovation in switch design that combines special gold crossbar contacts with a revolutionary "all-in-one-weld" contact/terminal construction for switches that deliver reliability, long life in harsh, low pressure environments—the MAM005 line of ultra-low pressure, vacuum and differential switches.
Most important, not only do these rugged and dependable switches last longer, they're comparatively priced, no matter if you're just looking for pre-configured switches available for immediate shipping, standard switches tailored to your business needs, or custom-designed switches for special applications
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Air Logic switches interface from pressure signals to electrical systems. The snap-action electrical switch provides a positive and reliable response. The switch operation is based on the actuation of a precision snap-acting switch acting against a diaphragm.
The switches are single pole, double throw for normally open, normally closed and common terminals, which are available from 0.1 to 25 AMP, 15 AMP standard. For low current applications, gold contact switches are available.
Maximum pressure is 100 PSI. Adjustment ranges from 0.5 to 100 PSI. Special actuating and releasing pressures are available on request.
The switches include Miniature Switches, Subminiature Switches, Low Differential Switches and Solid State Switches.
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Barksdale offers a complete line of electronic and mechanical pressure products for almost any pressure application.
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Single Pressure Switches
Low Cost OEM Pressure Switch - Series A1
Ranges from 3 to 500 psi (0.21 to 34.5 bar), Fixed Deadband, Weatherproof Available
Low Cost OEM Pressure Switch - Series A1N
Ranges from 1.5 to 100 psi (10 to 690 kPa), Fixed Deadband
Low Cost OEM Pressure Switch - Series A1PS/A1VS
Ranges from 28" Hg Vacuum to 500 psi, Fixed Deadband
Low Cost OEM Pressure Switch - Series APS/AVS
Ranges from 27" Hg Vacuum to 500 psi, Fixed Deadband
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Diaphragm or piston pressure switches and vacuum gauges for closing, opening or switching an electric contact when a preset pressure value is reached.
Operating pressure range -900 mbar up to 400 bar. - Differential clogging indicator
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GEMS Pressure Switch Instruments Cover A Wide-Range of Applications
Field-Adjustable or Factory Set Switches
High Proof Pressure
Rugged and Dependable
GEMS offers a choice of pressure switch devices and proximity sensor units, from compact cylindrical models for OEM use, to larger, enclosed units for rugged process applications. These pressure switch devices are ideal for the filtering process of coolants in the machine tool industry, use in transmissions of off-highway vehicles and as redundant systems with existing monitors such as transducers.
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The wide range of pressure switches satisfies to harsh environments such as agressive, corrosive and explosive atmospheres. Fitted with diaphragm seals, a solution is offered for any kind of industry.
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Steam Pressure Switch SCH-DWA
Differential Pressure Switch SCH-DDCM
Press./Diff. Press. Switch for neutr. gases SCH-HCD, SCH-DPS
Pressure Switch for Aggressive Media SCH-DNM
Pressure Switch for General Use SCH-DCM
Pressure Switch with st. st. Sensor System SCH-DNS
Pressure Switch for Gases SCH-DGM, SCH-DWR
Electronic Pressure Switch PDD
Electronic Pressure Switch PSC
Electronic Pressure Switch PDL
Vacuum Switche SCH-VCM
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Model: LFS 03
Electircal Function: 1 pole NO, 1 Pole NC
Temperature: Ambient:-10 to +85
Electrical Connections: Tab terminals 6.4 X0.8 mm, Tab Terminals 4.8 x 0.8 mm (1 pole NO only)
Pressure Range: Pressure: +15 to+2500mbar
Tolerance:+/- 10% NO; +/- 15% NC
Vacuum: -600 to -15mbar
Tolerance: +/- 15%
Simple Line Connections: Pressure and Vacuum: Inlet 4.0 or 5.5 mm(up to 500mbar) Threaded inlet M10x1mm or 1/4 gas.
Almost no hysteresis
Medium: Non hazardous gas only
Contact carrying parts: Brass Silver plated (gold on request)
Membrane: Nitrile, EPDM, (Silicone, Perbunan on request)
If two points are required, two pressure switches with different calibrations should be employed. The method of fixing the tab terminals to the switch body does not allow for absolute air sealing. The switch is therefore not reccommended for applications where static vacuum has to be maintained. However, special models with additional pressure spring that allow for the vacuum to be connected to the pressure inlet side are available on request.
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Water proof
Differentials
Flame-Proof, ATEX
Differentials, Flame-Proof, ATEX
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