OEM Sensors And Components - Pressure And Vacuum Switches - Pressure Switches
The World Magnetics range of pressure switches available for a wide range of applications including:
FILTER RESTRICTION
'CHANGE FILTER' INDICATOR
COMMERCIAL/CONSUMER Air purifiers, water purifiers, HVAC, exhaust
INDUSTRIAL Drying, heating, cooling equipment, exhaust
LAWN & GARDEN Air filters
OFF-ROAD VEHICLES Air filters
AIR FLOW - PRESENCE/ABSENCE
HVAC Positive pressure in duct indicates air flow
FANS Positive pressure indicates air flow
AIR JET Presence/absence of material, counter
LIQUID LEVEL LIMIT SWITCH
CHEMICAL DISPENSERS Low level - refill indicator
BEVERAGE DISPENSERS Low level - refill indicator
APPLIANCE Water level in dishwashers and washing machines
TANKS High level - 'TANK FULL' indicator
PUMP & MOTOR CONTROL
COMPRESSORS Motor ON at low pressure, OFF at high pressure
REFILL Motor ON at low level, OFF at high level
SUMP & DRAIN Motor ON when liquid is present
BOAT BILGE Motor ON when liquid is present
PNEUMATIC ACTUATOR
POOL, SPA, HOT TUB Electrically insulated controls/push buttons
EDGE DETECTION Auto-reverse the motor in power doors
SPECIAL EQUIPMENT Sip-and-puff actuators for the handicapped
HIGH/LOW VACUUM ALARM
FLOOR CARE Loss of vacuum indicates 'BAG FULL' condition
PICK-AND-PLACE High vacuum indicates part has been picked up
HIGH/LOW PRESSURE ALARM
MEDICAL Low pressure alarm in oxygen concentrators
� High/low alarms in assisted breathing products
� High/low alarms in sleep disorder products
BREATH ANALYZER Indicates a sufficient breath has been submitted
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Jump to family:
DesignFlex PSF100A series
World Magnetics DesignFlex PSF100A Series
● 0.1" H2O to 50" H2O
30 V, AC/DC Up to 40 mA SPST contact.
● Double Make / Double Break Contacts Provide Shock and Vibration Resistance
● Dual Gold Inlay Contacts
● US Military Approved
15 basic models from 0.5" of water to 50" of water, plus variation of ports and construction materials.
PSF100A-0.5
PSF100A-1.0
PSF100A-1.5
PSF100A-2.0
PSF100A-3.0
PSF100A-4.0
PSF100A-6.0
PSF100A-8.0
PSF100A-10.0
PSF100A-12.0
PSF100A-15.0
PSF100A-20.0
PSF100A-30.0
PSF100A-40.0
PSF100A-50.0 |
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WM Pressure Switch Accessories
WM carry a variety of DesignFlex™ pressure switch, vacuum switch, and differential switch accessories. The popular accessories are shown below.
Switch Accessories: switch relays, switch mounting clips, switch mounting brackets, switch electrical / terminal connectors, switch port couplings, switch port fittings, polyurethane tubing, and precision adjustment tools. |
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DesignFlex PSF101 Series
PSF101 series for sensing pressure, vacuum and differential pressure
Features
● gold inlay contacts
● small size, lightweight
● fast response
● options for port style and mounting
● PCB terminations available ~ consult factory
Table| PSF101 series Mechanical Specification | | Standard tolerance | ±20%
Tighter Tolerances available | | Switch type | SPST normally open
normally closed ~ consult factory
| | Switching medium | Air, compatible fluids on the high side | | Mechanical life | More than 20 million cycles | | Proof Pressure | 8 psi for units set to 3.0" water or less
15 psi for units set to greater than 3.0" water | | Weight | Less than 10 grams | | Operating temperature | +40°F to +150°F (standard)
Extended ~ consult factory | | DesignFlex |
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The database is in a building phase and this family is currently empty.
Please CALL our sales team. |
DesignFlex PSF102 Series
PSF102 for sensing pressure, vacuum and differential pressure
Features:
● field adjustable set point
● high resolution, high accuracy set-point mechanism
● Adjustable set point models from 0.1" H2O to 30psi
● gold inlay contacts
● options for ports and housing
● small size and lightweight
● PCB terminals available
PSF102 table| PSF102 series Mechanical Specification | | Switch type | SPST normally open
| | Switching medium | Air, compatible fluids on the "high" side | | Mechanical life | More than 20 million cycles | | Proof Pressure | refer to table "Pressure Set point Options" | | Weight | Less than 10 grams | | Operating temperature | +40°F to +150°F (standard)
Extended ~ consult factory | | DesignFlex |
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Ordercode Builders:
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| 1. | PSF 102-21720 ... [more details]
WM PSF series pressure switch with normally closed contact, set for 0.5psi. Custom product CODE NUMBER. | | 2. | 7662-712 ... [more details]
DesignFLEX ™ PSF 102 Series, barbed port for 3/16" ID tubing, without mounting lugs, with 0.06" vent hole high port, with Teflon diaphragm, for 2.0" to 15.0" of water. | | 3. | 7652-712 ... [more details]
DesignFLEX ™ PSF 102 Series, barbed port for 3/16" ID tubing, without mounting lugs, barbed high port for 3/16" ID tubing, with Teflon diaphragm, for 2.0" to 15.0" of water |
Dietz series 200P
The new Dietz 200P is a reliable robust pressure switch designed for the pneumatics industry. It offers pressure ranges for 3–150 psi with a proof pressure of 350 psi and is fully field adjustable. With an industry standard Din type connector and a ¼" Male NPT pressure port, this switch is the ideal product for general industrial applications.
Sales Features / Benefits
- Rugged compact brass housing
- Adjustable pressure ranges from 3–150 psi
- SPDT Switch (up to 5 Amp)
- High life (1,000,000 cycles +)
Mechanical
- Set Point Ranges: 3–150 psi
- Repeatability: ± 2% FS
- Maximum Overpressure: 350 psi
- Mechanical Life: 1,000,000 Cycles
- Temperature Range: -20–180°F
Physical
- Set Point Ranges: 3–150 psi
- Repeatability: ± 2% FS
- Maximum Overpressure: 350 psi
- Mechanical Life: 1,000,000 Cycles
- Temperature Range: -20–180°F
Electrical
- Switch Type: SPDT Snap Action
- Current Rating:
- 5 A 12/24 VDC – 125 VAC
- 3 A 250 VAC
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Dietz series 200HP
5 Models of High Pressure Switches
The Dietz 210HP is designed for use in high pressure industrial and commercial applications. Offering five adjustable ranges from 30–5000 psi this switch meet the requirements of demanding hydraulic system. Made from zinc plated steel, with an industrial IP 65 standard connector and a ¼" NPT male pressure port, the 210HP can be mounted directly in the most harsh industrial environments.
FEATURES / BENEFITS
- Adjustable pressure ranges up to 5000 psi
- Suitable for high proof pressures (9000 psi)
- Robust zinc plated housing sealed to IP 65
- Industry standard Din 43650 A electrical connection
- Mechanical life in excess of 1,000,000 cycles
Mechanical
- Set Point Ranges: 30–5000 psi
- Repeatability: ± 2% FS
- Maximum Overpressure: 9000 psi
- Mechanical Life: 1,000,000 Cycles
- Temperature Range: -20 – 180°F
Physical
- Housing Material: Zinc Plated Steel
- Diaphragm: Nitrile (other options available on request)
- Pressure Port: ¼" NPT Male
- Environmental Protection: IP 65
- Electrical Connection: Din 43650 A
- Weight: 0.41 lbs
Electrical
- Switch Type: SPDT Snap Action
- Current Rating
- 5 A 12/24 VDC – 125 VAC
- 3 A 250 VAC
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| 1. | D31000 ... [more details]
Dietz series 200HP, model 210HP-4-4M-C-HC, adjustable pressure range 30–120 psi, with an average differential of 9–20 psi. | | 2. | D31001 ... [more details]
Dietz series 200HP, model 210HP-5-4M-C-HC, adjustable pressure range 75–300 psi, with an average differential of 12–36 psi | | 3. | D31002 ... [more details]
Dietz series 200HP, model 210HP-6-4M-C-HC, adjustable pressure range 300–1200 psi, with an average differential of 69–80 psi | | 4. | D31003 ... [more details]
Dietz series 200HP, model 210HP-7-4M-C-HC, adjustable pressure range 1000–3000 psi, with an average differential of 180–360 psi | | 5. | D31004 ... [more details]
Dietz series 200HP, model 210HP-8-4M-C-HC, adjustable pressure range 2000–5000 psi, with an average differential of 200–400 psi
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Lefoo Series LF20-H
The LF20-H pressure switches are robust, compact and designed to operate in harsh environments at various pressures. 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 is polyimide 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 tabs and a metric-pack connector that forms a tight seal when connected. Because of their ruggedness the LF20-H is a popular choice for the many OEM applications.
Series No. |
LF20-H |
Media |
Air,motor oils, transmission oils, jet fuels and other similar hydrocarbon media; water (provide with special diaphragm material) |
Pressure Set Point |
Factory set from 10 to 400 PSI |
Max Operating Pressure |
500 PSI
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Proof Pressure |
2000PSI |
Burst Pressure |
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Operating Temperature Range |
-40° C to ~ 120° C |
Switch Type |
Direct action, blade contact |
Electric Rating |
Resistive: 15 AMP- 6 VDC
8 AMP- 12 VDC
4 AMP- 24 VDC
Inductive: 1 AMP- 120 VAC
0.5 AMP- 240 VAC |
Contact Arrangement |
SPST-N.O., N.C.,
SPDT |
Terminals |
#8-32 screws, 1/4" blade, Metri-Pack |
Connection |
1/8"NPT Male, 1/4"NPT Male, G1/8" Male, G1/4" Male |
Material |
Contact: Silver alloy, gold plated
Base: Plated Steel;
Cover: Glass reinforced polyester
Diaphragm:Polyimide film (other materials is optional according to media) |
Options |
Base connector thread sizes; wire leads (potted & sealed); N.O./N.O. dual circuit and N.C./N.C. dual circuit |
Conversion: 1Kgf/cm2 = 14.2PSI , 1Bar = 14.5PSI |
Ordercode Builders:
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| 1. | LF20-H-342111-100 ... [more details]
Lefoo Series LF20-H, 75 - 150 set point pressure range, SPST-N.O., user adjustable, stainless steel, 1/8" NPT, 1/4" spade blade, cover style A, set to 100psi |
Lefoo Series LF20
The LF20 pressure switch is specifically designed to stand up to extended duty applications. This switch is factory set but capable of field adjustment. It features different diaphragms for compatibility with a wide variety of fluids, and various terminations including a Metri-Pack connector that forms a tight seal when connected. Among the outstanding design benefits are its durable construction, compact size, and enhanced set point integrity. It can be widely used for pool and spa, anti-skid braking systems, water pump systems, and dental air compressors, heavy construction and and off road applications, etc.
Table| Specifications | Lefoo Series LF20 | | Media | Air, motor oils, transmission oils, jet fuels and similar hydrocarbons, water | | Pressure Setpoint | Factory set from 0.3 to 150 psi | | Max operating pressure | 150 psi for 0.5 to 24 psi ranges
250 for 25 to 150 psi ranges | | Proof Pressure | 500 psi | | Burst Pressure | 750 psi for 0.5 to 24 psi ranges
150 for 25 to 150 psi ranges | Operating temperature
range | -40°C to +120°C | | Switch style | direct action, blade contact | | Electrical rating | Resistive: 15 amps @ 6Vdc, 8amps @ 12Vdc, 4 amps @ 24Vdc
Inductive: 1 amp @ 120Vac, 0.5amps @ 240Vac | | Contact arrangement | SPST NO / NC | | Terminal options | 1/4" spade terminals, #8-32 screw terminals, optionally wire leads potted and sealed | | Port Connection options | 1/4" NPT male, 1/8"-27 NPT male. others on request | | Materials | Electrical contacts: Silver alloy, gold plated
Base: Brass
Cover: Glass reinforced polyester
Diaphragm: Polyimide film (standard) | | Other optional choices (dicuss) | Base: Plated steel, stainless steel or plastic.
Diaphragm: Teflone or EPDM |
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Ordercode Builders:
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Lefoo Series LF25
LF25 pressure switch is designed for control pressure with higher current capacity. It is widely used in steam cleaner, steam iron and other pressure control system. It provides SPST or SPDT contact form and switch dead-band (also referred to as mechanical differential or hysteresis).
LF25 switch utilise high-quality miniature snap-action switches. The switch is diaphragm operated. Diaphragm material can be selected for the operating medium, temperature range and other parameters. During the development of a specification, actuation point can be adjusted by the designer. In production, factory setting is required.
Lefoo LF25 Specifications| Specification: | Lefoo LF25 series | | Medium | Non hazardous gas, liquid or steam. | | Operating Temperature | +85°C to +125°C Maximum | | Contact Arrangement | SPST or SPDT | | Electric Ratings | SPST or SPDT/ Normal Close: 16(4) A-250VAC;
Other ratings are available on request
| | Terminals | 6.35 or 4.88mm male Q.C. ;
Insulation cover available as necessary | | Pressure port | NPT 1/8-27 or NPT 1/4-18 male, G1/8 male |
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Lefoo LF25 model range| Lefoo LF25 model range | | Operating pressure (bar) | 0.2-0.6 bar | 0.5-1.5Bar | 1.2-2.5bar | 1.5-4bar | 3-7bar | 5-9bar | | Proof Pressure (bar) | 3 | 4 | 5 | 6 | 7 | 10 | | Differential Pressure | 0.2±0.1bar | 0.2±0.1bar | 0.2±0.1bar | 0.25±0.15bar | 0.35±0.20bar | 0.6±0.20bar |
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Ordercode Builders:
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| 1. | LF25-5122-6.5 ... [more details]
Lefoo series LF25, user adjustable range 3.0 to 7.0 bar, 1/8" NPT-27 port, microswitch 2.1A, 125 ~ 250 Vac, for 125°C maximum temperature, 6.5 bar (factory set-point value). |
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