West Controls

Gauges
Switches
Transmitters

Plastic Case Bourdon Tube Pressure Gauges

Entry level plastic cased pressure gauge for standard applications up to 63mm case diameters. Accuracy class 2.5.

Features	40, 50 & 63mm case diameter, Lower or centre back process connection
Ranges	-1-0bar to 0-60bar depending on case diameter
Materials	Case – ABS plastic, black finish Window – Snap-on polycarbonate Sensing element – Cu-alloy movement, phosphor bronze tube
Mounting	⅛” (40mm) or ¼” (50, 63mm) BSPP, BSPT or NPT M
Options	Custom ranges, Other process connections, Red indicator on lens, Custom dial layout, Accuracy class 1.6, Nickeled socket

Steel Case Bourdon Tube Pressure Gauges

Entry level steel cased pressure gauge for standard applications up to 63mm case diameters. Accuracy class 2.5.

Features	40, 50 & 63mm case diameter, Lower or centre back process connection
Ranges	-1-0bar to 0-400bar depending on case diameter
Materials	Case – Steel, black finish Window – Snap-on polycarbonate Sensing element – Cu-alloy movement, phosphor bronze tube
Mounting	⅛” (40mm) or ¼” (50, 63mm) BSPP, BSPT or NPT M
Options	Custom ranges, Other process connections, Red indicator on lens, Custom dial layout, Accuracy class 1.6, Nickeled socket, Stainless steel or chromed case, Green selector on swivel lens, Blowout back

Industrial Steel Case Bourdon Tube Pressure Gauges

Steel cased pressure gauge for standard applications up to 150mm case diameters. Accuracy class 2.5 for 40, 50 & 63mm, class 1.6 for 80, 100 & 150mm. Can be stem mounted or panel mountable with a U-clamp.

Features	40, 50, 63, 80, 100 & 150mm case diameter, Lower or centre back process connection
Ranges	-1-0bar to 0-400bar depending on case diameter
Materials	Case & Bezel – Steel, black finish Window – Glass Sensing element – Cu-alloy movement, phosphor bronze tube
Mounting	⅛” (40mm), ¼” (50, 63mm), ½” (80, 100, 150mm) BSPP, BSPT or NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Accuracy class 1.6 for 50, 63mm, Case diameter 30mm back mounting only, Nickeled socket, Stainless steel case on 40, 50 & 63mm only

Stainless Steel Bourdon Tube Pressure Gauges

Stainless steel cased pressure gauge for standard applications up to 150mm case diameters. Accuracy class 1.6 (63mm), class 1 (100, 150mm). Can be stem mounted, surface mounted, wall mounted with back flange or panel mountable with a U-clamp. Available in solid front design featuring a baffle wall interposed between sensing element and window.

These gauges can be supplied in a turret style case made of black polypropylene. Accuracy 0.5%, solid front design, plexiglass window and case diameter 4.5”.

Features	63, 80, 100, 150mm case diameter, Lower or centre back process connection, IP65
Ranges	-1-0bar to 0-1600bar depending on case diameter
Materials	Case & Bezel – 304SS Window – Plexiglass (63mm), 4mm Safety glass (100, 150mm) Sensing element – 304SS movement, 316SS tube
Mounting	¼” (63mm), ½” (100mm) BSPP or NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Oxygen service, Electric contacts, Safety/Plain glass (63mm) or plastic window (100, 150mm), Glycerine filled (+15 to +65°C), Silicon filled (-45 to +100°C) – other liquids compatible with foods or oxygen service are available, Monel measuring system (100, 150mm), Maximum reading pointer, 316SS case & bezel, Diaphragm seals, Screw restrictor (100, 150mm), Movement with dampening jelly (100, 150mm)

Stainless Steel Bourdon Tube Pressure Gauges with Liquid Filling

Stainless steel cased pressure gauge for standard applications up to 100mm case diameters. Accuracy class 1.6. Can be stem mounted, surface mounted, wall mounted with back flange or panel mountable with a U-clamp. Glycerine liquid filling.

Features	40, 50, 63, 80, 100mm case diameter, Lower or centre back process connection, IP65
Ranges	-1-0bar to 0-1000bar depending on case diameter
Materials	Case & Bezel – 304SS Window – Non-splintering clear PMMA plastic Sensing element – Cu-alloy movement, phosphor bronze tube
Mounting	⅛” (40mm), ¼” (50, 63mm), ½” (100mm) BSPP, BSPT or NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Accuracy class 1for 100mm, Dry but fillable execution

Capsule Pressure Gauges

Steel or stainless steel cased pressure gauge for low pressure applications up to 150mm case diameters. Accuracy class 1.6. Can be stem mounted, surface mounted, wall mounted with back flange or panel mountable with a U-clamp.

Features	40, 50, 63, 80, 100, 150mm case diameter, Lower or centre back process connection, IP32 – 63mm, IP55 - 100, 150mm
Ranges	Vacuum, 0-6mbar to 0-600mbar depending on case diameter
Materials	Case – Steel black finish (63mm), 304SS Bezel – 304SS (100, 150mm) Window – Clear plastic screwed in (63mm), Plain glass (100, 150mm)
Sensing element	Cu-alloy movement (63mm) Cu-Alloy/Stainless steel (100, 150mm)
Mounting	⅛” (40mm), ¼” (50, 63mm), ½” (100mm) BSPP, BSPT or NPT M
Options (All)	Custom ranges, Other process connections, Custom dial layout, Oxygen service
Options (63mm)	Chromed case, nickeled socket, Stainless steel wetted parts, Stainless steel case

Low Pressure Bellows Pressure Gauges

Stainless steel cased pressure gauge for low pressure applications up to 150mm case diameters. Accuracy class 1. Can be stem mounted, surface/wall mounted with back flange.

Features	100, 150mm case diameter, Lower process connection, IP55
Ranges	Vacuum, 0-60mbar to 0-1000mbar depending on case diameter
Materials	Case & Bezel – 304SS Window – 4mm Glass Sensing element – 316SS
Mounting	½” BSPP or NPT M
Options	Accuracy 0.5, Custom ranges, Other process connections, Custom dial layout, Oxygen service, Overpressure safety 5x full scale value, Gauge accessories, Electric contacts, Acrylic glass or laminated safety glass

Bellows Pressure Gauges

Stainless steel cased Absolute & Gauge pressure gauges for low pressure to medium applications up to 150mm case diameters. Accuracy class 1.6. Stem mounting only.

Features	100, 150mm case diameter, Lower process connection, IP55
Ranges	Absolute, Vacuum, 0-10mbar to 0-25bar depending on diaphragm
Materials	Case & Bezel – 304SS Window – Plain Glass Sensing element – 316SS up to 2.5bar, above - zinc-plated steel & 316SS foil
Mounting	½” BSPP or NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Oxygen service, Overpressure safety 10x full scale value (40bar max), Gauge accessories, Electric contacts, Safety glass or plastic window, Glycerine filled (+15 to +65°C), Silicon filled (-45 to +100°C), Vacuum protection, Wetted parts PTFE (up to 16bar), Maximum reading pointer, 316SS case & bezel, PVC lower body (0-0.4 to 0-25bar only), Hastelloy C276 diaphragm (Absolute only)

Differential Capsule Pressure Gauges

Stainless steel cased pressure gauge for differential pressure applications in 150mm case diameters. Accuracy class 1.6. Can be stem mounted, surface/wall mounted with back flange or panel mountable with front flange.

Features	150mm case diameter, Lower or centre back process connection, IP67
Ranges	0-0.6mbar to 0-250mbar
Materials	Case & Bezel – 316SS Window – 4mm Acrylic Glass Sensing element – 316SS
Mounting	2x ½” BSPP or NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Safety/Plain glass window, 3-way or 5-way valve manifold

Differential Double Diaphragm Pressure Gauges

Stainless steel cased pressure gauge for differential pressure applications up to 150mm case diameters. Accuracy class 1.6. Can be stem mounted, surface mounted with back flange, panel mountable with front flange or with 2” pipe mounting bracket.

Features	100, 150mm case diameter, Lower or centre back process connection, IP65
Ranges	0-0.6mbar to 0-16bar
Materials	Case & Bezel – 304SS Window – Plain Glass Sensing element – 316SS, Silicon oil, 304SS movement
Mounting	2x ¼” NPT M
Options	Custom ranges, Other process connections, Custom dial layout, Safety glass or plastic window, 3-way or 5-way valve manifold, Glycerine filled (+15 to +65°C), Silicon filled (-45 to +100°C), Electric contacts, Diaphragm seals, Monel wetted parts, Monel or Hastelloy C276 diaphragms, Static pressure up 250bar, Overpressure safety up to 250bar, Oxygen service, Other liquids in element chamber compatible with foods or oxygen service are available

Battery Powered Digital Pressure Gauges

These battery powered digital pressure gauges have been designed typically for applications in hydraulics, pneumatics and mechanical engineering. They can be installed easily and quickly in situ. The display module is continuously rotatable so that a clear readability is guaranteed even in unusual installation positions.

Features	Rugged, rotatable plastic housing, 4.5 digit LCD display, easy configuration via three push buttons, IP65
Ranges	0-100mbar to 0-600bar
Materials	Sensor – Stainless Steel or Ceramic Housing – Polyamide 6.6, Polycarbonate Pressure port – 316SS
Mounting	G¼”, G½”, ¼” or ½” NPT male

Electric Alarm Contacts

These contacts, fitted into the case of a thermometer or pressure gauge, are designed to open or close circuits from the instrument’s pointer position. Available in 100mm and 150mm up to 4 contacts.

Low Action Contacts

These contacts are used in absence of high contact loads and vibrations. The contact is instantaneously released upon touching of the two contact pins. These contacts are not suitable for use in high duty operation, aggressive atmosphere and measuring instruments filled with liquids.

Snap-Action Contacts (with screwed-in magnets)

This type of contacts can be used under almost all operating conditions and are generally not affected by vibrations. The contact release is accelerated by an additional skip or snap action when the pins are approaching.

Inductive Contacts

The gauges are equipped with non touching proximity switches. Due to their contact free operation, switching precision and long service life, these contacts are suitable for any industrial application and should preferably be used with oil filled measuring instruments. The output signal is determined by the presence or absence of a control vane moved by the instrument pointer within the electromagnetic field of the proximity switch.

Diaphragm Seals

Sanitary connections – DIN 11 851

SMS Standard

IDF Standard

APV-RJT Standard

Clamp fitting

Internal diaphragms – Screwed process connection

Flanged process connection

Flange-type seals with extended diaphragms

High pressure diaphragm seals with male thread

Flange-type seals

Mini Diaphragm seals

Gauge Accessories

Pressure gauge valves

3-way manifolds

5-way manifolds

Pulsation dampeners

Overpressure protectors

Gauge syphons

Test Gauges

160mm case diameter, solid front, accuracy class 0.25, lower or direct lower back process connection, Panel mounting with back flange, IP55.

Ranges	0-0.6bar to 0-600bar
Materials	Case & Bezel – 304SS Window – Laminated Safety Glass Sensing element – ≤ 160bar 316SS, ≥ 250bar Beryllium copper
Mounting	½” BSPP or NPT M
Options	Custom ranges, Other process connections, Carrying case, SIT certificate

200mm case diameter, solid front, accuracy class 0.25, lower process connection, IP54.

Ranges	0-1bar to 0-1000bar
Materials	Case & Bezel – Aluminium casting, black hammer enamel finish Window – Plastic Sensing element – 316SS
Mounting	½” BSPP or NPT M
Options	Custom ranges, Other process connections, Carrying case, SIT certificate

250mm case diameter, accuracy class 0.25, lower or direct lower back process connection, Panel mounting with front flange, Surface mounting with back flange, IP65.

Ranges	0-0.6bar to 0-1600bar
Materials	Case & Bezel – 304SS Window – Mineral Glass Sensing element – Beryllium Copper
Mounting	½” BSPP or NPT M
Options	Custom ranges, Other process connections, Carrying case, SIT certificate

250mm case diameter, accuracy class 0.1 (up to 600bar), class 0.2 (over 600bar), lower or direct lower back process connection, Panel mounting with U-clamp, IP65.

Ranges	0-1bar to 0-1600bar
Materials	Case & Bezel – Aluminium casting, black hammer enamel finish Window – Plastic Sensing element – Beryllium Copper
Mounting	½” BSPP or NPT M
Options	Custom ranges, Other process connections, Carrying case, SIT certificate

Mechanical Pressure Switches

Low cost mechanical pressure switches suitable for monitoring over pressure, vacuum or differential pressure of liquids and gaseous media.

Features	Factory set or adjustable pressure setting, IP44, IP54 or IP65
Ranges	-900mbar to 12bar
Materials	Pressure ports – Polymide (PA), +-PDF, Polyphenylensulfide (PPS), Brass Diaphragm – NBR, Silicone, Viton, EPDM
Mounting	Tube connections 5,6.5 & 10mm, Threaded M10x1, G⅛”, G¼”, G½” male
Versions	Overpressure, Vacuum, Differential
Options	Alternative materials, Protection caps, electrical connection

Industrial Pressure Switches

These pressure switches comprise of three different measurement principles; diaphragm (up to 42bar), piston (up to 400bar), and bourdon tube (up to 600bar). As well as standard pressure measurement, these switches can also measure differential. The switches used make contact positively – no contact teasing as switch setting is approached, these also feature low hysteresis; adjustable hysteresis is an available option.

Features	Diaphragm, Piston or Bourdon tube, rated up to 85°C, IP65, LPCB approved
Ranges	-1 to 600bar
Materials	Wetted - Beryllium Copper, Brass, PTFE, Nitrile, Stainless Steel
Mounting	British, American and metric, bottom entry
Versions	Heavy duty, Hygienic, Pneumatic, Differential, Miniature, Sub-miniature, Modular, High pressure, Air signal, Safety cut-out/Alarm, Differential switch with gauge
Options	ATEX approved, Alternative materials, Dual switches, Visual set point scale, Dampening, High temperature, Degreased, Gold plated switches, Low leak, No aluminium, Plug & socket, Overload protection, Manual reset, Adjustable Hysteresis, Higher electrical rating

Electronic Pressure Switches

Electronic pressure switches designed specifically for pneumatic, vacuum and hydraulic applications. The microprocessor controlled switch offers standard functions and enhanced features such as window/hysteresis modes and time delays.

Features	For hydraulic, pneumatic, or vacuum applications, outputs configurable via PC adapter or programming device, LED alarm indicators, IP54 or IP67, rated up to 85°C
Ranges	From 0 - 1bar up to 0 - 400bar, -1 - 0bar
Materials	Wetted - Aluminium, Stainless Steel, NBR, FKM, Ceramics
Mounting	Flanged or G⅛”, G¼”
Versions	1 or 2 switched outputs, analogue output 1-5V
Options	Alternative materials, Custom versions, Various Electrical & Port connection

Programmable Pressure Switches

These switches measure and display pressure with a four digit display and have one or two switching outputs as well as an optional 4-20mA or 0-10V output. The set points, reset points, switching functions and measuring range of the analogue output are simple to adjust via two buttons. With the use of time tested ceramic or thin film sensors, these pressure switches feature a high level of repeatability and durability.

Features	Compact, simple handling, Cost effective, 330° turnable pressure connection and display head, Integrated password protection, Fast response time
Outputs	NO/NC, 4-20mA, 0-10V
Ranges	-1 to 700bar
Mounting	G¼”, G½”, ¼”NPT, ½”NPT, M12x1.5
Versions	2 switched outputs, 1 switch & analogue output

Industrial Differential Pressure Transmitters

These differential pressure transmitters can withstand high differential pressure on one port whilst other side is at zero line pressure, dependant on model without sustaining damage. High pressure measurement up to 16bar is available.

Features	Can cope withstand high differential pressures without sustaining damage, rated up to 125°C
Ranges	From 0 - 0.1mbar to 0 - 16bar, Gauge, Differential & Absolute
Materials	Pressure ports – Stainless Steel, ABS Plastic, Aluminium Seals – FKM, NBR, PUR Sensor – Stainless Steel, Ceramic
Mounting	G½” male, ⅛”NPT, G⅛” female
Versions	4-20mA, 0-20mA, 0-10V, 1-5V, 1-6V, 0.5-4.5V
Options	Customer specials, Electrical connections, Port connections, LCD display, Rugged housing

Industrial Pressure Transmitters

Industrial pressure transmitters feature ceramic or stainless steel sensing elements allowing wide material compatibility. These transmitters offer high resistance to shock and vibration as well as high accuracy. High pressure measurement up to 2200bar is available.

Features	Accuracies to <±0.05%, High shock & vibration resistance, For use in industrial, aggressive media & hydraulic applications, rated up to 150°C
Ranges	From 0 - 10mbar to 0 - 2200bar, Gauge, Sealed Gauge & Absolute
Materials	Pressure ports – Alumina, Stainless Steel, PVDF Seals – NBR, Viton, EPDM Sensor – Ceramic, Stainless Steel
Mounting	G¼”, G½” male, G½” female
Versions	Millivolt, 100/200mV, 0-20mA, 4-20mA, 1-5V, 0-10V, 0.5-5.5V
Options	Customer specials, Displays, Field housing, Various Electrical connections, Alternative port connections, ATEX approved Intrinsically safe, High accuracy

Flush Diaphragm Pressure Transmitters

Ideally suited for hygienic and clean applications or with viscous media. Different transmitting fluids are available on request including silicon and food compatible oils. A high temperature version with a cooling element is available and can be used with media up to 300°C.

Features	Flush mounting, Silicon filled, Food compatible oils available, High quality hygienic stainless steel ball housing, rated up to 135°C
Ranges	From 0 - 170mbar to 0 - 400bar, Gauge, Sealed Gauge & Absolute
Materials	Pressure ports – Stainless Steel Seals – NBR, Viton Sensor – Stainless Steel
Mounting	G½”, G¾”, G1” female, hygienic clamps
Versions	0-20mA, 4-20mA, 0-10V
Options	Customer specials, Displays, Field housing, Electrical connections, Alternative port connections, ATEX approved Intrinsically safe, High temperature, HART

HART/Fieldbus Pressure Transmitters

Featuring a Piezo-resistive sensor, these transmitters have been developed to meet the highest requirements in the process industry. High signal stability and thermal compensation is achieved by its intelligent digital electronics. Linearisation of the output is another feature of this transmitter. These sensors are available in a rugged housing for industrial applications or stainless steel ball housing for clean and hygienic applications. A high temperature version with a cooling element is available and can be used with media up to 300°C.

Features	Rated to IP67, HART protocol, Fieldbus, Profibus, LCD display, rated up to 125°C
Ranges	From -1 - 0bar to 3.5 - 35bar Gauge or Absolute
Materials	Wetted - Stainless Steel, Hastelloy, FKM
Mounting	½” BSP or NPT, G1”, Various flanges & hygienic connections
Options	HART, Custom versions, Field housing, Hygienic ball housing, ATEX approval, Port connections, Oil filling, High temperature

Intelligent Differential Pressure Transmitters

The intelligent differential pressure transmitter features a capacitive sensor which results in outstanding performance and has extraordinary stability against overpressure. It is suitable for liquids, vapour and gases, preferred areas of use are process engineering and chemical industries. This transmitter features HART communication and PID control function. DP ranges up to 250bar with 16 point linearisation.

Features	Static overpressure up to 320bar, HART, Fieldbus, PID Controller
Ranges	0 to 400bar Differential, Gauge or Absolute
Materials	Wetted - Nickel plated carbon steel, 316L Stainless Steel, Hastelloy
Outputs	4-20mA, 10-50mA, 0.8-3.2V, 1-5V, Profibus
Versions	Compact or Remote
Options	Choice of mountings & chemical Seals, Hygienic, Alternative materials, Alarms, ATEX approved, High Temperature, Various manifolds, High accuracy

CANopen Pressure Transmitters

This CANopen pressure transmitter has been developed for acquisition of gauge and absolute pressure measurement and covers a wide range of applications, for example; hydraulics, pneumatics, machine tools, presses, injection moulding machines, test stands and lifting stages. The transmitter proportionally converts pressure of liquids and gases and enables further signal processing via the CANopen interface.

Features	Rated to IP67, CANopen profile, rated up to 125°C
Ranges	From -1 - 0bar to 0 - 600bar Gauge or Absolute
Materials	Wetted - Stainless Steel, FKM, NBR
Mounting	G¼”, G½” male
Options	Custom versions, Alternative materials & seals, Electrical connections