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Pressure Switches
Baratron Gauge Pressure Switch
The MKS Types 41, 42, 51 and 52 Vacuum, Atmospheric and Pressure Switches offer accurate and reliable protection for vacuum equipment, atmospheric switching, and vacuum/pressure processes. Designed for applications where a DC signal output is not required, these switches provide relay outputs that are readily interfaced with alarms, valve actuators, computers, process controllers, load locks and other protection devices.
The Type 41/42 switches reference atmosphere while the Type 51/52 switches reference vacuum. The Type 41/42 switches are often used to ensure a loadlock pressure has equilibrated to local atmospheric pressure before opening the door. The trip point on MKS' atmospheric switches can be set to trip above, below (reverse calibration), or exactly at current atmospheric pressure. Applications for the 51/52 switches include soft pumping, gas box switching, and safety interlocks.
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ELETTROTEC offers know-how and flexibility in developing particular products to suit the most specific customer's applications.
Thanks to the long experience gained in different fileds and with an eye constantly kept on innovation and evolution in technology, ELETTROTEC, beside a wide and comprehensive range of standard products, can supply customized solutions, as for special thread connections - either metric, taper or parallel -, IP67 executions with potted flying leads (with or without connector) or with epoxy encapsulated caps already equipped with integrated plug.
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Differential pressure indicators (DPIs)
"On condition" maintenance is a feature of modern fluid power technology. Our DPIs provide a signal to show the extent of filter blockage thus reducing maintenance time and costs by eliminating unnecessary filter element change.
Our range includes differential pressure indicators, switches and electrical indicators.
Microfiltrex can provide DPIs with many special features :
* Visual and/or electrical indication
* Thermal lock
* Flow surge suppression
* Non-reset function
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Mechanical Pressure Switch
Relative and differential pressure switch Type 604
0.2 ... 50 mbar
The type 604 pressure switch is used as a ∆P flow switch in ventilation ducts for the control of filters and fans, and in primary and secondary control systems for the control of air dampers. The 604 pressure monitoring switches are also ideally suited to protect heating coils from overheating and for monitoring industrial air cooling circuits. Medium: air and non-corrosive gashttp://img.directindustry.com/images_di/photo-p/23640.jpg
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Setting ranges:
- 0.2 – 3 mbar (20 – 300 Pa)
- 0.5 – 5 mbar (50 – 500 Pa)
- 1 – 10 mbar (100 – 1000 Pa)
- 5 – 20 mbar (500 – 2000 Pa)
- 10 – 50 mbar (1000 – 5000 Pa)
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The measuring principle of the mechanical pressure switch is a spring loaded diaphragm respectively for higher pressure ranges a spring loaded piston. The high mechanical service life, high contact rating and the compact design characterize the tecsis differential pressure switch.High quality parts and a integrated micro switch obtain a outstanding reliability and accuracy. The switching reliability and long service life are guaranteed by either a silver plated or optional gold plated contact.
Mechanical differential pressure switches are suitable for all areas, where an electrical signal is related to a given differential pressure value. They are especially designed for applications of controlling and monitoring differential pressures of filters, level measurement and flow measurement or for universal usage in machine and plant constructions.
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Comprehensive range of pressure switches designed to monitor pressure in pneumatic and hydraulic systems available with different adjustment ranges according to customers’ application requirements (from –1 to 600 bar). Accurate and reliable they are very easy to be used and programmed.
Digit LED display to read information. Available with ON/OFF, NPN/PNP Open Collector and analogue outputs, bar or psi engineering units. Some models can be also supplied with an integrated diagnostic function. 1/4” and 1/8” Gas or NPT standard pressure ports.
Suitable to be used with air, gas, water, oil and aggressive fluids.
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General Description
The ED101 series electronic module is used to control DSA/DWE/DWU pressure control valves. The module accepts up to 4 on/off input signals which select one of four pressures set by potentiometer adjustments on teh card. Two ramp adjustments provide smooth transition between selected pressures.
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Digital display
100% adjustable set point and deadband
All solid state design
Remote and local "I AM Working®" status signal
Captures and displays MAX/MIN process extremes
Continuously stores HI/LO extremes
Adjustable ranges: 0 to 4500 psig (310, 3 bar) ; 0 to 200 psid (13, 8 bar) ; -300 to 1000ºF -184 to 538ºC
4-20 mA output models available
Division 1 (Intrinsically Safe) Division 2 models available
Approvals: UL, cUL, CE, ATEX, GOST
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Relative and absolute pressure switch Type 615
Relative –1 ... 0 - 600 bar
Absolute 0 ... 0.3 - 16 bar
The type 615 pressure switches measure pressure by means of highly resistant ceramic elements. An open collector (transistor) output accommodates loads up to 100 mA. Either an N/C or N/O contact may be used, and the upper and lower switching point can be freely selected in the range 5 to100% fs. Various electrical and pressure connections are available to suit given applications.
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Murphy UK now carries stock of a robust and economical pressure switch, designed primarily for monitoring engine low oil pressure.
The engine-mounted switch features direct action contacts that are factory set to close below 15 psi (field adjustable between 14 and 24 psi). Normally closed or changeover contact options are available. A polyimide Kapton diaphragm gives compatibility with air, oil or other hydrocarbon media.
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- CLASS I, GROUPS A, B, C, D;
- CLASS II, GROUPS E, F, G;
- NEMA 4X
- Proof Pressure to 3000~5000psi
- Adjustable Ranges: 7~4000psi
- Temperature: -25 to 205°C
- Switch Data: one SPDT Microswitch, 15amps 125/250V
- Housing: die cast aluminum alloy with paint
- Electronic Connection: ¾" or ½" NPT Female
- Pressure Element: welded type diaphragm
- Process Materials: wetted parts are all in 316SS
- Process Connection: ½" or ¼" NPT Female
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• Explosion proof - for chemical gases etc.
• Admitted by PTB Nr. 01 ATEX 1005 X
• Oil connection G 1/4 female
• max. adjusting pressure 600 bar
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Pressure switches with one change-over switch
Protection class IP 64
Switching hysteresis of scale end value 5 - 10%
Repeat accuracy of the scale value 1%
With pressure adjusting scale
7 Pressure ranges (60 - 1000 bar)
Minimal dimensions
Can be turned trough 360° at full pressure
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Available with push-on and screw terminals or DIN plug. Adjustment range: 0.2...300 bar and -200...-900 mbar. Body material brass, tropicalized steel, aluminium, stainless steel; diaphragm or piston sensing element in NBR, Viton, EPDM, HNBR, Neoprene, Silicone, stainless steel; N/O, N/C or SPDT C/O contacts. Designed either with a thread connection or for manifold mounting.
Suitable for: pneumatic and hydraulic systems, automation, lubrication plants, power transmission, lifting systems, food and beverage, chemical and pharmaceutical industry, filter control , medical equipment, agricultural machinery, earthmoving and marine applications.
All the models suit the UE standards
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- Proof Pressure to 3000psi
- Adjustable Ranges: 7~4000psi
- Temperature: -20 to 205°C
- Switch Data: one SPDT Microswitch, 15amps 125/250V
- Housing: die cast aluminum alloy with paint
- Electronic Connection: ½" NPT Female
- Pressure Element: welded type diaphragm
- Process Materials: wetted parts are all in 316SS
- Process Connection: ½" or ¼" NPT Female
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CPX Configurable digital pressure switch
Fields:
- Pharmaceutical and Biotechnical Industry
Digital pressure switch
Fields:
- Chemical and Petrochemical Industry
- Food and Beverage Industry
- Pharmaceutical and Biotechnical Industry
- Heating, Ventilation and Air Conditioning
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-Precision stainless steel mechanism for arduous
atmospheres and high humidity.
- Set point adjustable over whole range against calibrated
scale with tamperproof adjuster.
- Precise and accurate operation guaranteed by use of
hydraulic formed bellows, or capsule stack.
- Ranges available up to 75 Bar (1,000 psi)
- NACE MR-01-75 compatibility.
- Models for fixed switching differential, adjustable
differential and HI-LO operation.
- Safety vented or blow out device as standard.
- Hermetically sealed microswitch option.
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Pressure changes will be converted into an electrical signal by means of a sensor element and an integral electronic evaluation unit.
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J6 Series
Product Overview
- Rugged, NEMA 4X, epoxy coated enclosure
- single switch output
- SPDT switch output
- Adjustable deadband versions available
- Adjustable ranges: 30 "Hg Vac to 6000 psi, 1 bar Vac to 414 bar
- Approvals: UL, CSA, CE
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Everel produces a range of pressure switches suitable for control and safety purposes in numerous applications, such as steam generators, fluid-level control devices, hydraulic circuits, boilers and vacuum pumps.
The working pressure can be set up to a maximum of 3,000 mbar to match the requirements of the appliance. These components can also be used as vacuum switches and employed with liquids and gases.
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Type: DMW
Measurement range: 0,2 .. 300 bar
Pressure fitting: 1/8" or 1/4"
Switched voltage: 250 VDC
Type: DMM
Measurement range: 0,1 .. 50 bar
Pressure fitting: 1/8", 1/4", M10, M12
Switched voltage: 48 VDC
Type: DMF
Measurement range: 0,1 .. 50 bar
Pressure fitting: 1/8", 1/4", M12x1,5
Switched voltage: 48 VDC
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Bulletin 836 Pressure Controls are designed for general industrial use to control and detect pressure. Allen-Bradley Bulletin 836 Pressure Controls can be used in pneumatic and hydraulic systems. Pressure controls use copper alloy or stainless steel bellows. The design and high quality components provide long life operation with air, water, oil, non-corrosive liquids, vapors, gases, and some corrosive liquids or gases. Pressure controls feature snap action precision switches equipped with silver contacts.
Bulletin 836 Pressure Controls:
Operating Ranges from 30 in. Vacuum to 900 psi
Independently Adjustable Range and Differential
Copper Alloy and Stainless Steel Bellows
7/16-20 S.A.E. and 1/4 in. N.P.T. Connections
Variety of Contact Blocks Available
Open Type, Type 1, Type 4&13, Type 4X and Type 7&9 and 4&13 Combination Enclosures
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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 PDLVacuum Switche SCH-VCM
Vacuum Switche SCH-VCM
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Electronical pressure switch MagSwitch with integrated LED
The compact electronic pressure switch MagSwitch provides pressure monitoring. Adjusting screws are used to set the switching point whilst under pressure. Integrated LEDs indicate the current switching state.
The principle of non-impact measurement based on the Hall-effect produces a pressure switch which has a high level of repeatability and durability, even in the case of a high number of pressure cycles.
The contact functions (normally open / normally closed) and the contact types (p-switching / n-switching) are available as optional extras. Switching currents ranging from a few Micro-Amps to 100mA allow the MagSwitch to be easily integrated into almost any control system. The adjustable hysteresis enables to build up 2-position controllers easily without additional external components.
A pressure connection free of elastomers qualifies the MagSwitch for many liquid and gaseous media.
The metal diaphragm can also be used without any problem for simultaneously occurring pressure and vacuum.
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"Series DS-117"
DS-117(112)-***/ B
• 30
• Oil connection G 1/4 female
• flanshable as well as 90° angle connection (p max. 350 bar)
• max. adjusting pressure 350 bar
DS-117(112)-***/ B / V3
• 30
• Oil connection 1/4 female
• max. adjusting pressure 350 bar
• with knurled knob
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Pressure switches designed with graduated knob for easy adjustment. Body in yellow anodized aluminium, standard NBR diaphragm or gasket, aluminium knob and set-point security dowel in stainless steel. Adjustment ranges 10 to 360 bar; fixed hysteresis. SPDT contacts rated 3A/220Vac. Designed with 1/4" BSP thread connection but also suitable for manifold assembly. IP65 protection.
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The dV-2 PS is a sophisticated digital pressure gauge with two independent pressure switch outputs. The gauge employs KELLER’s proven microprocessor technology which produces highly accurate results. All readings are linearised and temperature corrected, to give an accuracy of 0,2 %FS.
There are two independent switches for High and Low control functions. These are solid state and therefore not subject to wear. The switch points are programmed directly from the two front panel buttons and a menu system. Alternatively, the dV-2 PS can be connected via the RS485 link to a laptop/PC, and configured using KELLER’s “Pressure Switch Console” software. User defined configurations can be stored on the computer for future reference. Pressure sequences can also be monitored and recorded on the PC for application diagnostic purposes using KELLER’s Read30 software.
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Series ISE30 high precision digital pressure switch (for positive pressure) with two color digital display allows you to choose the setting according to your application requirements. 4 different display settings are available. Abnormal conditions can be detected at a glance.
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Pressure switches for gas DG
Diaphragm pressure switch with micro-switch (silicone-free) for monitoring gas pressures in industry, for gas and air, also for biologically produced methane, with hand wheel for switching point adjustment, can be used as special-design pressure switch, EC type tested and certified.
Switching ranges: 0.5 to 500 mbar,
DG..B for positive pressure,
DG..U for positive pressure, negative pressure and differential pressure,
DG..H locks off with rising pressure,
DG..N locks off with falling pressure,
DG..I for gas negative pressure,
electrical connection: terminals or standard plug with socket.
The following versions are available: pressure switch with gold-plated contacts for voltages < 24 V,
pressure switch with control lamp,
pressure switch with diaphragm for oxygen and ammonia (not for fuel gas), pressure switch with external adjustment.
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The range of differential pressure switches includes components for general industrial use as well as specialised switches for demanding applications
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