Gauges

INDUSTRIAL GAUGES

Industrial Pressure Gauges

GENERAL PURPOSE INDUSTRIAL GAUGES
For general demanding industrial applications like hydraulic, mining, shipping and machine building industry. Glycerine fillable.

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.

Process Industrial gauges

A PROCESS GAUGE is a Heavy duty gauge intended for the process industry such as the chemical, petro-chemical, energy, oil & gas and the food and beverage industry. Glycerine fillable.

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.

Capsule Gauges - Low Pressure Industrial Gauges

Low pressure capsule gauges intended for measuring low pressure in applications such as the medical, laboratory, vacuum and filter monitoring etc. Dry media only.

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.

Pressure Measurement Refrigeration Industrial Gauges

REFRIGERATION PRESSURE GAUGE is Intended for refrigeration and air-conditioning industry for media such as Freon and Ammonia. Glycerine Fillable.

Suitable for refrigeration media such as freon and ammonia. Typical applications will be in the refrigeration and airconditioning industry.

DIAPHRAGM OPERATED PRESSURE GAUGES - Industrial Gauges

Over pressure safe gauge for low pressure crystallising or polluting media in the range 0-4, 6, 10, 16, 25, 40...2500kPa. Industrial, mining and process 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.

TEST PRESSURE GAUGES- Industrial Gauges

TEST PRESSURE GAUGES - Precision test pressure gauge intended for reliable, accurate measurement in the pressure testing and industrial gauge calibration industry.

Type 43X.56 Industrial Gauges offer all stainless steel construction and a high overpressure safety to 600 PSI or 1500 PSI. This Industrial Gauge is ideal for applications involving viscous and crystallizing media in a harsh environment
such as pulp & paper processing, chemical, petrochemical, and in water and sewage treatment plants.

TYRE PRESSURE GAUGES - Industrial Gauges

TYRE PRESSURE GAUGES: Robust, accurate tyre pressure gauge, intended for the mining and industrial automotive industry. Glycerine fillable.

Suitable for inspection of tyre air pressure in the automotive and industrial environment.

ELECTRICAL CONTACT PRESSURE Industrial Gauges

ELECTRICAL CONTACT PRESSURE GAUGES: With external dome mounted snap action magnetic contacts are intended for the control and regulation of industrial processes where switching of electrical circuits are required for the industrial, mining and process 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 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.

LOCOMOTIVE PRESSURE Industrial Gauges

LOCOMOTIVE PRESSURE GAUGES, 100mm (4") ROUND Robust duplex gauge designed for rolling stock in the railway or industrial locomotive industry.

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.

Industrial MINING PRESSURE Gauges

Staple lock plug fitting gauges is intended for mining equipment and plants where hydraulic support is required. Glycerine fillable.

For mining equipment and plants where hydraulic support is required.

50, 63mm dial
S/steel case and crimped bezel
Brass wetted parts
Staple lock plug connection
0...60MPa, bar, psi etc.
Accuracy 1.6% F.S.

Industrial LOCOMOTIVE PRESSURE Gauges

Safety pattern gauge with solid front baffle wall and blow out back for safe, immediate pressure relief. Intended for the industrial, mining and process industry.

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.

DUPLEX PRESSURE Industrial Gauges

DUPLEX PRESSURE GAUGE Intended for the display of two separate input pressures on the same gauge for comparison purposes in the general industrial, mining and 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.

Digital Pressure Gauge Industrial Gauges

PRECISION DIGITAL PRESSURE Industrial Gauges

Precision digital gauge is intended for calibration and laboratory use where repeated, accurate pressure readings are required.

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.

DIGITAL PRESSURE Industrial Gauge

DIGITAL PRESSURE GAUGE DPG502 is a digital pressure gauge with an accuracy of 0.2% of full scale. it features a max/peak pressure memory function. General purpose digital gauge intended for industrial, hydraulic, mining and process 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.

PRESSURE TRANSMITTER Industrial Gauges

General purpose pressure transmitters are intended for the general industry such as hydraulic, pneumatic, mining, chemical, petro-chemical, shipping, machine buliding etc.

Suitable for the majority of general industrial control applications such as hydraulics, pneumatics, pharmaceutical and food & beverage.

Temperature Industrial Gauges

Bimetal Thermometer Temperature Industrial Gauges

Versatile bimetal thermometer intended for the chemical, petro-chemical, energy, oil & gas and the food & beverage industry. For installation in pipes, vessels, plant, machinery etc.

Suitable for media such as air, water, oil, gas, and chemicals that will not attack stainless steel 316. Typical applications will be in a general industrial heating, air- conditioning, food, petroleum, and chemical industry.

Gas Actuated thermometer industrial gauges

Heavy duty nitrogen actuated thermometer intended for local or remote reading in the chemical, petro-chemical, energy, oil & gas and the food & beverage industry. Glycerine fillable.

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.

Vapout Expansion Thermometer Industrial Gauges

VAPOUR EXPANSION THERMOMETER
Heavy duty thermometer intended for the demanding industrial automotive industry, such as for the portable air compressors / generators and earthmoving equipment industry.

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.

Bimetal Thermometer Industrial Gauges

BIMETAL THERMOMETER - Economically priced thermometer intended for the general heating and cooling industry. For installation in air-conditioning, solar power and hot water boiler systems.

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.

Murphy Industrial Gauges

Industrial Temperature Gauges

20T/25T Mechanical Temperature Industrial Gauges

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.

Combination Indicating gauge and Limit Switch
Critical/High Temperature Limit Switch Is Visible and Adjustable (Most Models)
Switch Can Activate Alarms and/or Shut Down Equipment
Contact Grounds Through Case

Mechanical Temperature Industrial Gauges SDB Series

Mechanical Temperature Gauges SDB Series

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.

Easy to read dial
Bi-metallic sensor
Two ranges:
- 100 to 500°F (40 to 260°C)
- 200 to 1000°F (100 to 500°C)
Dials scaled in degrees fahrenheit celsius
CSA listed explosion-proof model available

Mechanical Temperature Industrial Gauges SDB Series

Mechanical Temperature Gauges SPL Series

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).

Typical applications include:

Gas compressors
Heaters and coolers
Water pump temperature
Engine coolant temperature
Process temperature

Combination indicating gauge and critical temperature limit switches, High and low temperature limit contacts are visible and adjustable, Panel and wall mount versions, and Latching control relay versions available

Industrial Pressure Gauges

Mechanical Pressure Gauges 20P - 25P Series

20P / 25P Series Mechanical Pressure Industrial Gauges

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.

25DP and A25DP Mechanical Pressure Gauges

Mechanical Pressure Gauges 25DP and A25DP

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.

Additional features:

Constant visual indication of the condition of your filter is shown on the dial.
Two instruments in one with an accurate indicating gauge and adjustable p.s.i.d. limit switch reduces inventory and installation time.
Adjustable contact lets you set the monitoring range of the gauge. The contact is tamper proof and can be set only with a 1/16 Allen-head wrench.
All gauges are made of durable materials allowing them to withstand rugged applications.
Early filter changes cost you money and increase the risk of contaminants entering the system. A filter restriction Swichgauge instrument will let you know when to change the filter and maintain peak efficiency.

A20P / A25P Series Mechanical Pressure Gauges

Mechanical Pressure Gauges A20P - A25P Series

The A20 Series (2 inch/51 mm dial) and the A25 Series (2-1/2 inch/64 mm dial) Swichgauge instruments are diaphragm-actuated, pressure-indicating gauges with built-in electrical switches for tripping alarms and/or shutdown devices.

Ranges are available from 0-30 psi (207 kPa) [2.0 bar] through 0-300 psi (2.1 MPa) [20 bar].

These rugged, instruments are face sealed from the environment by the unique combination of a polycarbonate case and lens, a polished stainless steel bezel and O-ring seals. Tese gauges are sealed from the external environment. 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 series A25P, 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.

Model A20PE has internal snap-acting SPDT switches for three wire control and can be wired to make or to break a circuit.

gauge-only models, without switches (Murphygauge instrument) are also available.

A20/A25 Series applications include: engines/equipment in oil field for lube oil pressure, water pump pressure, hydraulic pressure, air pressure, etc.

Base Models

A25P Series Swichgauge
The gauge pointer makes with an adjustable contact to complete a pilot duty circuit.

A20PE Swichgauge
A20PE (was A20EO). Features internal snap-acting SPDT switches, instead of the single pole/pointer contacts. When the switch closes on falling pressure, it becomes set, as pressure rises the switch resets (refer to wiring diagram).

A20PG Murphygauge instrument
gauge without contact(s)

Mechanical Pressure Gauges 45APE Series

Combination Indicating Gauge with Independent Low and High Snap-Acting Switches
Field-Adjustable and Highly Visible Low and High Pressure Trip Point Indicators
Dual-Sector Geared Movement Allows for Full-Scale Indication and Set Point Control
Panel and Surface Mount Versions Available
Latching Control Relay Versions Available

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.

Basic Models

45APE Series gauge instrument
Surface mount (square case) version

45APEF Series gauge instrument
Panel Mount (round Case) Version

OPL Series Mechanical Pressure Gauges

Combination Indicating Gauge and Critical Pressure Limit Switches
High and Low Pressure Limit Contacts Are Visible and Adjustable
Panel and Surface Mount Versions
Indicating-only Gauge Available
Latching Control Relay Versions Available

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.

Other versions available (details on next page):

Gauge only without contacts
Gauge instrument with built-in latching relay for start-stop operations.

PD8100 Series Pressure Sensors and Instruments

Used on Controllers, Instruments and Recorders to Dampen Pressure Pulsation
Eliminate Gauge Pointer Flutter
Aids in Providing More Accurate Pressure Indication
Decreases wear on a Gauge's Geared Movement

The PD8100 Series eliminates pointer flutter on pressure indicating gauge devices which are subject to pulsating pressure from reciprocating pumps or compressors. It also allows a close setting of high and low contact points providing for more accurate pressure indication and control of equipment.

The PD8100 Series decreases wear on geared movements and increases the life of pressure indicating instruments by eliminating excessive gauge strain and unnecessary movement, a necessity which quickly pays for itself by protecting any pressure indicating and control instrument which is subject to pulsation.

PD8100 SERIES IS NOT FOR USE ON OXYGEN OR LIQUID OXYGEN APPLICATIONS.

The PD8100 is quality built with a large diameter valve stem wheel for ease of adjustment and features clearly printed operating instructions.

Machined from 1 3/8-inch (35 mm) hex bar stock, a two degree taper on the valve and stem assure positive dampening.

It’s available in brass, carbon steel, 303 stainless steel or 316 stainless steel to meet pressure and environmental requirements with either 1/2 NPT or 1/4 NPT inlet connections.

PT167EX Mechanical Pressure Gauges

The FW Murphy PT167EX is a pressure gauge instrument connected to a threaded pressure diaphragm housing. The gauge is enclosed in an explosion-proof case and is CSA rated for Class I, Division 1, Groups C and D.

The PT167EX Mechanical Pressure Gauges are a pressure-indicating gauge with adjustable low and high pressure limit switches. When the gauge pointer touches the low or high limit switches, an electrical circuit is completed which can operate alarms and/or shut down equipment.

The 2 NPT, sealed diaphragm housing is attached directly to the gauge connection. The diaphragm housing is filled with a silicone fluid so that pressure against the diaphragm causes the gauge to respond. The housing seals the sensing element from the medium being measured.

Applications include highly viscous liquids such as crude oil on lead line applications. Other applications have included asphalt, sludge, abrasive materials, etc.