The gauge mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. Accuracy and protection from moderate overpressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning. For models 20P and 25P, the gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts are grounded through the case and have self-cleaning motion to ensure electrical continuity.
The 20P-200 Pressure Swichgauge instrument has a 2 inch (51 mm) dial, and a pressure range of 0-200 psi. The gauge mechanism is enclosed in a steel case coated to resist corrosion, and utilizes a polycarbonate break-resistant lens and a polished stainless steel bezel to help protect this rugged instrument.
New MURPHY Swichgauge model 10-35-0949 fluid temperature gauge with high limit switch. Can be used with coolant, oil, diesel fuel or hydraulic fluid. 1/16" Hex wrench adjustment knob on front to adjust switch set point
The 20 Series (2 inch/51 mm dial) and the 25 Series (2-1/2 inch/64 mm dial) Swichgauge models are diaphragm-actuated, temperature-indicating gauges with built-in electrical switches for tripping alarms and/or shut-down devices.
Ranges are available from 32°-120°F (0°-45°C) through 300°-440°F (160°-220°C).
The gauge mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break- resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument.
These vapor-actuated gauges feature a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gauge reading.
For series 20T and 25T, the gauge pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contact(s) are grounded through the Swichgauge case. They have a self-cleaning motion to enhance electrical continuity.
Suitable for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be in the hydraulic, pneumatic, refrigeration, steam, chemical and food and beverage industry.
Suitable for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be in the hydraulic, pneumatic, refrigeration, steam, chemical and food and beverage industry.
Suitable for measuring low pressure / vacuum in gaseous, non-aggressive dry media that does not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be in the medical, laboratory, vacuum and filter monitoring industry.
Suitable for refrigeration media such as freon and ammonia. Typical applications will be in the refrigeration and airconditioning industry.
Suitable for aggressive gaseous and liquid media under extreme conditions. Ddiaphragm gauges are suitable for viscous, crystallising or polluting media. The design ensures resistance to vibration and protection against over pressures.
For pressure gauge testing and calibration laboratories. Suitable for media such as air, water, oil & gases that do not attack copper alloy parts.
Suitable for inspection of tyre air pressure in the automotive and industrial environment.
Suitable for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be for the control and regulation of industrial processes where switching of electrical circuits are required. Externally adjustable, single or double contacts, can be fitted to a SA Gauge pressure gauge to make the gauge suitable to activate or deactivate electrical devices. Contact can make or break in an upward or downward pressure cycle.
Suitable for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be for the control and regulation of industrial processes where switching of electrical circuits are required. Externally adjustable, single or double contacts, attached to the movement of a SA Gauge pressure gauge make the gauge suitable to activate or deactivate electrical devices. Contact can make or break in an upward or downward pressure cycle.
Specifically designed duplex gauge for diesel / steam railway and industrial locomotive use. Illumination slots behind the bezel or flange facilitates easy reading in dim environments. Removable front flange available with or without illumination slots.
Specifically designed duplex gauge for diesel / steam railway and industrial locomotive use. Illumination slots behind the bezel or flange facilitates easy reading in dim environments. Removable front flange available with or without illumination slots.
For mining equipment and plants where hydraulic support is required.
Safety pressure gauge, with solid front baffle wall, designed with operational safety requirements in mind. Suitable for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system. Typical applications will be in the chemical, petrochemical, mining, on and offshore process industry.
Suitable for the measurement and indication of two simultaneous or individually applied pressures. Intended for media such as air, water, oil & gases that do not attack copper alloy or stainless steel parts or will obstruct the pressure system.
High accuracy digital gauge, suitable for media such as air, water, oil & gases that do not attack stainless steel parts or will obstruct the pressure system. Typical applications will be in the general industrial, petroleum, chemical and laboratory industry.
General purpose digital gauge, suitable for media such as air, water, oil & gases that do not attack stainless steel parts or will obstruct the pressure system. Typical applications will be in the and general industrial hydraulic industry.
The DPG 502 is a digital pressure gauge with an accuracy of 0.2% of full scale. it features a max/peak pressure memory function.
Suitable for the majority of general industrial control applications such as hydraulics, pneumatics, pharmaceutical and food & beverage.
Easy to handle, robust testing kits designed for troubleshooting on hydraulic, air and vacuum systems. Sizes and configurations other than indicated below are also available on request.
The 20P Series (2 inch/51 mm dial) and the 25P Series (2-1/2 inch/64 mm dial) Swichgauge models are diaphragm-actuated, pressure-indicating gauges with built-in electrical switches. These switches are used for tripping alarms and/or shutdown devices.
Ranges are available from 0-15 psi (103 kPa) [1.0 bar] through 0-100 psi (690 kPa) [7.0 bar]. The gauge mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break-resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. Accuracy and protection from moderate overpressure is assured by a unique, unitized diaphragm chamber. A built-in pulsation dampener helps eliminate pointer flutter and is removable for cleaning. For models 20P and 25P, the gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts are grounded through the case and have self-cleaning motion to ensure electrical continuity. Model 20PE has internal snap-acting SPDT switches. gauge-only models, without the switches (Murphygauge®) are also available.
The 25DP and A25DP Series (2-1/2 inch/64 mm dial) Swichgauge instruments are diaphragm-actuated, differential pressure-indicating gauges with a built-in electrical switch. This switch is used for tripping alarms and/or shutting down equipment. These gauges are intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system.
The 25DP series mechanism is enclosed in a steel case coated to resist corrosion. The A25DP series has a polycarbonate case sealed from the environment. Both feature a polycarbonate, break-resistant lens to help protect the instruments. The gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have self-cleaning motion to ensure electrical continuity.
The 25DP and A25DP Series (2-1/2 inch/64 mm dial) Swichgauge instruments are diaphragm-actuated, differential pressure-indicating gauges with a built-in electrical switch. This switch is used for tripping alarms and/or shutting down equipment. These gauges are intended to monitor and indicate oil, fuel or water filter restriction and can reduce the risk of dangerously high pressure which may rupture the filter, resulting in contaminants entering the system.
The 25DP series mechanism is enclosed in a steel case coated to resist corrosion. The A25DP series has a polycarbonate case sealed from the environment. Both feature a polycarbonate, break-resistant lens to help protect the instruments. The gauge pointer acts as a pressure indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contacts have self-cleaning motion to ensure electrical continuity.
The 45APE Series gauge instrument is a mechanical gauge for pressure indication. It includes two adjustable SPDT switches. These snap-acting switches can be used for start and stop, to trip alarms and to shut down equipment. Ranges are available from 30 psi (207 kPa) [2.06 bar] thru 5,000 psi (34.48 MPa) [344.73 bar].
The 45APE Series utilizes a bourdon tube sensing unit with a stainless steel dual-sector geared movement. Each of the sectors drives separate pointers when pressure is applied to the bourdon tube. The indicating pointer (visible pointer) shows actual pressure reading, including below and beyond the low and high trip points. The low and high trip points are adjustable independently on the gauge front lens. The switch operator pointer (behind the dial) is calibrated to follow the indicating pointer. The low and high trip point indicators arrest the switch operator pointer. As pressure decreases or increases through the principal of lost motion, the respective snapswitch is tripped.
The 45APE Series models are widely used in applications requiring pressure indication and Form C low and high pressure switches.
The OPL-series pressure gauge instruments are combination pressure indicating gauges with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or the start/stop of engines and electric motors. Surface mount or panel mount enclosure is available for most versions. All versions feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from the front of the gauge. Limit contacts have self-cleaning motion to enhance electrical continuity.
The OPL-series pressure gauge instruments are combination pressure indicating gauges with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or the start/stop of engines and electric motors. Surface mount or panel mount enclosure is available for most versions. All versions feature a 4-1/2 in. (114 mm) dial for easy viewing. Adjustable limit switches are accessible from the front of the gauge. Limit contacts have self-cleaning motion to enhance electrical continuity.
Easy to handle, robust testing kits designed for troubleshooting on hydraulic, air and vacuum systems. Sizes and configurations other than indicated below are also available on request.
Suitable for media such as air, water, oil, gas, and chemicals that will not attack stainless steel parts. Typical applications will be in a general industrial heating, air- conditioning, food, petroleum, and chemical industry. Vibration resistant.
The non-contact infrared forehead thermometer is intended for use to measure adult and children body temperature without making physical contact. Simply point the thermometer at the person's forehead and from 3cm to 5cm away, click “Scan”. Body temperature will instantly be displayed on the coloured screen, and for convenient visual reference, the backlight will indicate Green for normal temperature, Orange for elevated temperature and Red for high temperature and fever The small and user friendly thermometer can measure in three modes, Body, Room and Surface temperature.
Suitable for media such as air, water, oil, gas, and chemicals that will not attack brass parts. Typical applications will be in demanding automotive, portable air compressors / generators and earth moving equipment where distance reading is required. Vibration resistant.
Suitable for general heating and cooling industry. Typical applications will be in a general industrial heating and air-conditioning industry. Also suitable for solar power systems and hot water boiler installations.
Suitable for general heating and cooling applications. Typical applications will be in shipping, diesel engines, refrigeration and heating plants, power station turbines and the petrochemical industry.
The 20 Series (2 inch/51 mm dial) and the 25 Series (2-1/2 inch/64 mm dial) Swichgauge models are diaphragm-actuated, temperature-indicating gauges with built-in electrical switches for tripping alarms and/or shut-down devices. Ranges are available from 32°-120°F (0°-45°C) through 300°-440°F (160°-220°C). The gauge mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break- resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. These vapor-actuated gauges feature a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gauge reading. For series 20T and 25T, the gauge pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact. Contact(s) are grounded through the Swichgauge case. They have a self-cleaning motion to enhance electrical continuity. These instruments are used on equipment in oil field and monitoring engine coolant, crankcase oil and transmission oil.
The SDB Series are direct-mounting temperature devices. They provide an accurate direct-reading gauge with an adjustable limit switch to activate alarms and/or shutdown. A knob on front of the instrument allows you to adjust the limit switch trip point. Pointer movement is actuated by a bi-metallic sensing element. Models SDB500, SDB501 and SDB500EX have a temperature range of 100° to 500°F (40° to 260°C). SDB500EX enclosure is explosion-proof and CSA listed for Class I, Group C and D hazardous locations. The SDB1000 has a temperature range of 200° to 1000°F (100° to 500°C). The most common use of the SDB Series is to monitor gas compressor temperatures. Engine exhaust temperature can also be monitored to indicate overloading or lean fuel mixtures, or use the SDB to help coordinate loads on twin-engine installations
The 4-1/2” (114 mm) size dial gauge is a mechanical gauge for temperature indication. It is a combination indicating gauge and critical temperature limit switches. High and low temperature limit contacts are visible.
It includes adjustable, electrical contacts that can be used for start and stop, to trip alarms and to shut down equipment.
Panel and wall-mount versions are available as well as latching control relay versions.
Ranges are available from 15° to 250° F (9° to 121° C) through 260° to 450° F (127° to 232° C).
Gas compressors
Heaters and coolers
Water pump temperature
Engine coolant temperature
Process temperature
Basic Models
diaphragm seals, with application driven filling fluids, are designed to protect the pressure gauge when dealing with hot, aggressive, solidifying or hygienic media, insuring accurate and trouble free pressure indication. Typical applications will be the chemical and slurry industries or any other application where the pressure media will obstruct or corrode the pressure system.
diaphragm seals are designed to protect the pressure gauge when dealing with hot, aggressive, solidifying or hygienic media, insuring accurate and trouble free pressure indication. Typical applications will be the food and beverage, chemical and slurry industries or any other application where the pressure media will obstruct or corrode the pressure system.
Suitable for hot, aggressive gaseous and liquid media under extreme conditions. Diaphragm gauges are suitable for viscous, crystallising or polluting media. Typical applications will be in the petrochemical and chemical process industry
