IBG
Oakleaf Investment Holdings 52 (OIH)

Unit C5, The Palisades, 39 Kelly Road, Jet Park

tel:  
+27 11 397 1105
email:  
[email protected]
url:  
www.oihcontrols.co.za

Core business offering: Supplier of field instrumentation in the southern African market. The company represents branded, global manufacturers of shut-off, pressure, and flow control valves; gas and moisture analyser systems; liquid analysers; and dust and gas explosion protection systems. Calibration, test and measurement equipment is also supplied.


De Bastos, Ricardo
Internal Sales
[email protected]
Ferreira, John
Sales & Marketing Manager
[email protected]
Krog, Amanda
Financial
[email protected]
Moonsamy, Vilen
Sales and Technical Manager
[email protected]
Natha, Neeraj
Internal Sales
[email protected]
Bemet
Cape Town
tel: +27 82 553 6058
NIC Natal
Durban
tel: +27 31 277 2200
fax: +27 86 6708 185
Accutron
(Sole Agency)
Ametek Magnetrol
(Sole Agency)
AS-Schneider
(Shared Agency)
AVA
(Sole Agency)
Baker Hughes Bently Nevada
(Shared Agency)
Baker Hughes Druck
(Sole Agency)
Baker Hughes Panametrics
(Sole Agency)
Beko Technologies
(Sole Agency)
Beta
(Sole Agency)
Comac Cal
(Sole Agency)
Coreline Valve
(Sole Agency)
Electro Chemical Devices
(Sole Agency)
Enelsan
(Sole Agency)
E-one
(Sole Agency)
Fike
(Sole Agency)
GPE
(Sole Agency)
Innova
(Sole Agency)
Jordan
(Sole Agency)
LORRIC
(Sole Agency)
LowFlow
(Sole Agency)
Marwin Valve
(Sole Agency)
Nova Analytical Systems
(Shared Agency)
OIH Enclosures
(Manufacturer)
Praher
(Shared Agency)
Sika Dr Siebert & Kuhn
(Sole Agency)
SSP Fittings
(Sole Agency)
SteriFlow
(Sole Agency)
Veris (Armstrong)
(Sole Agency)
WEKA
(Manufacturer, Sole Agency)
Section - Data Acquisition & Remote Control
-Ethernet-based systems
-In-transit temperature/event
-Machine health monitoring
-PC based data acquisition
- distributed data acquisition
- presentation/analysis software
-Portable data collection terminal
-Recorders
- chart paper
- circular chart
- strip chart
-Standalone data loggers
-Anemometers
-Barometers
-Hygrometers
-Meteorological instrumentation
-Monitors
- air quality
- chlorine
- corrosion
- density
- dust
- flame
- gas
- moisture
- radiation
- vibration
- water quality
-Sampling equipment
- gases
- liquids
- solids
-Cable telemetry
- Ethernet LAN
-Remote sensing & control
- from rotating shaft
Section - Maintenance, Reliability & Asset Optimisation
-Handheld/portable
- Angular alignment
- Hardwired point-to-point device calibrator/configurator
- Hardwired point-to-point HART device calibrator/configurator
- Hardwired point-to-point Profibus device calibrator/configurator
- Linear alignment
- Network capable HART device calibrator/configurator
- Network capable Profibus device calibrator/configurator
- Network capable proprietary device calibrator/configurator
- Other
- Wireless HART device calibrator/configurator
- Wireless Profibus device calibrator/configurator
- Wireless proprietary device calibrator/configurator
-In-stream/in situ
- Pneumatic air filtration/conditioning
-Out-of-stream/ex situ
- Pneumatic air filtration/conditioning
-In-stream/in situ
- Bearing
- Linear alignment
- Pneumatic air
- Thermal imaging/thermography
- Valve stroke testing
- Vibration/balance
-Sampling/ex situ
- Particle size
- pH
-Bench
- Instrument power supply
-Handheld/portable
- Data-logger
- Multimeter
- Thermometer
- Vibration/balance
-Condition monitoring
- Remote site condition monitoring
-Consulting
- Technical
-Education & training
- Computer-based
- Instructor-led
-Installation
- Alignment
- Balancing
-Maintenance
- Calibration
- Hardware repair
- Maintenance
- Predictive maintenance
- Site-embedded maintenance
-Optimisation
- Energy
-Performance monitoring
- Energy
- Installation
- Lubrication
- Process/production
-Asset related
- Asset management software for intellectual assets (engineering related)
- Spares inventory management
-Calibration, configuration & adjustment
- Networkable HART device calibration/configuration
- Networkable Profibus device calibration/configuration
- Networkable proprietary device calibration/configuration
- Point-to-point HART device calibration/configuration
- Point-to-point Profibus device calibration/configuration
- Point-to-point proprietary device calibration/configuration
- Wireless HART device calibration/configuration
- Wireless Profibus device calibration/configuration
- Wireless proprietary device calibration/configuration
-Education & training
- Competency-based learning
- Simulation for training
-Maintenance
- Planning & scheduling
- Predictive maintenance
- Preventive maintenance
-Optimisation & efficiency
- Asset optimisation
- Energy optimisation
- Maintenance optimisation
Section - Miscellaneous Hardware
-Instrument power supplies
-Uninterruptible power supplies
-Boxes - electronics
- Plastic construction
-Cabinets
- Explosion protected
- Free-standing
- Wall mount
-Canopies
-Enclosures (special)
- Corrosion proof
- Environmentally protected
-Pole mount accessories
-Pole mount accessories (stainless steel)
-Thermal control
- Fans, blowers
-Reed relays
- Dry-contact
-Relays
- DIN-rail mount
- General purpose, control
- Time delay
-Switches
- Intrinsically safe
-Audible alarms
- Bells
- Horns, sirens
- Programmable voice annunciators
-Compressor anti-surge
-Safety limit switches
-Smoke/fire detection
-Visible alarms
- Annunciator displays
- Indicator lights
- LED
Section - Networks for Communication & Control
-ISA100
- field devices - actuators
- field devices - controllers
- field devices - transmitters
- portable devices
-WirelessHART
- field devices - actuators
- field devices - adaptors
- field devices - controllers
- field devices - transmitters
Section - Process Control & Manufacturing Technologies
-Electric
-Emergency shutdown
-Hydraulic
-Limit switches
-Partial stroke testing devices
-Pneumatic
-Valve position transmitters
- Valve positioners
-Control valves (applications)
- Cryogenic
- Globe - sanitary
- Hygienic
- Pump protection
- Re-circulating
- Safety release
- Severe service/harsh application valves
- Slurry control
- Steam conditioning
- Steam de-superheaters
-Control valves (type)
- Ball
- Butterfly
-Eccentric plug
-Expanding plug
-Globe
- double seated
- split-body
- three-way
-Lined valves
-Manifolds
-Rotary control valves
-Shut tight valves
-Sliding/knife gate
-Solenoid
-Communications
- Fieldbus
- RS232
- RS422/RS485
-Functionality
- Auto/self tuning
- Logic
- Maths/calculations
- PID/PD
- Ratio control
- Scaling of I/O
-Inputs
- 0/4-20mA
- mV/V
- RTD
- Thermocouple
-Number of loops
- >16
- 1-16
-Outputs
- 0/4-20 mA
- 0-5V
- mA/mV
- Pulse
- Relay contact
-Panel size (mm)
- 48x48
- 48x96
- 72x72
- 96x96
-Visual display
-Flowmeters (application)
- Batching
- Partially filled pipes/channels
-Flowmeters (type)
- Clamp-on, non-invasive
- Coriolis
- Custody transfer
- Differential pressure (DP)
- Doppler ultrasonic
- Magnetic/electromagnetic
- Mass
- Open channel, flume, weir
- Orifice plate, flow nozzle
- Pelton wheel
- Pitot tube
- Positive displacement
- Solids
- Thermal dispersion/calorific
- Turbine
- Variable area
- Venturi tube
- V-notch
- Vortex
- Wedge
-Monitors/indicators
-Pipeline monitors
-Potable water meters
-Regulators
-Switches
-Totalisers and correlators
-Explosion proof
-Fire detection & extinguishing equipment
-Flameproof
-Gas detection
-Intrinsic safety
- 3.5 & 4.5 digit indicators
- 4-20 mA set-point stations
- Batch controllers
- Flashing beacons
- Isolating interface units
- Multiplexers
- Sensors
- Solenoid valves
- Totalisers
- Transmitters - flow
- Transmitters - level
- Transmitters - pressure
- Transmitters - temperature
- Valve positioners
-Pressurisation
-Valves
-Boiler sight glasses
-Capacitive & conductive
-Float-operated
-Microwave, guided & radar
-Pressure/hydrostatic
-Rotary paddle
-Tank gauging
-Thermistor / thermal
-Tilt switch
-Ultrasonic
-Vibrating fork
-Automatic dispensing systems
-Batching
-Blending
-Coriolis
-Density
-Alarm indicators
-Analog panel meters
-Annunciator panels
-Digital panel meters
-Digital process indicators
-Displays
- LCD, flat-panel
- Programmable message
-Handheld terminals
-Actuators
- Linear
- Rotary
-Air dryers
-Controllers/logic devices
-Cylinders
- Double acting
- Positioners
-Filters
-Pressure/vacuum switches
-Tubes & fittings
-Valves
- Check
- Flow
- Gauge
- Isolation
- Manifolds
- Pressure
-Control transducers
- Displacement/position transducers
-Differential pressure transducers
-Instrument manifolds
-Manometers
-Pressure gauges/indicators
-Pressure switches
-Pressure-electrical transducers
-Regulators
- Pilot operated pressure reducing
- Rupture disk
- Self-acting back pressure
- Self-acting pressure reducing
-Capacitive
-Inductive
-Infrared
-Laser
-Limit switch
-Magnetic
-Ultrasonic
-Current
-Density
-Displacement
-Flow
-Gas
-Humidity
-Interface in solids/liquids
-Level
-Mass
-Moisture
-Other
-Radiation
-Thickness
-Vibration
-Converters
- A-D
- D-A
- I-P, P-I
- mV/current
- Power (VAR, F, kWh, etc.)
- Programmable
-Isolators
-Multiplexers
-Root extractors
-Heat flow monitors
-Infrared (IR) line scan
-IR non-contact
-IR thermal imaging
-Panel-mount indicators
-Pyrometers (IR non-contact)
-RTDs (Pt 100, Ni)
-Temperature switches
-Thermocouple reference units
-Thermocouples (Type S, T, etc)
-Thermowells
-Conductivity
-Control signal
-Differential pressure
-Flow
-Frequency
-Gas
-Humidity
-Level
-pH
-Pneumatic
-Pressure
-Resistance
-Temperature
-Universal, programmable
-Vibration
-Wireless
Section - Services & Systems
-Consulting engineers
- Project management
- Systems specification
-Contractors
- Factory automation
- Maintenance
- Process control
- System wiring/installation
-System integration/consulting
- Materials handling
- Process control
- Telemetry
Section - Test, Measurement & Calibration
-Analysers
- Ash content
- Boiler feed water
- Carbon concentration
- Chlorine
- Colorimetric
- Combustion
- Density
- Dissolved oxygen
- Flotation froth
- Flue gas
- Gas
- Gaseous contaminants
- Hydrocarbon
- On-line process
- Oxygen
- Particles
- Suspended solids
- Viscosity
-Chambers (environmental/temperature)
-Conductivity
-ORP
-pH
-pH handheld
-Pyrometers
-Redox measurement
-Sampling equipment
- Gases
- Liquids
-Turbidity meters
-0/4-20 mA loop simulators/calibrators
-Calibration services (SANAS accredited, etc.)
-Deadweight testers
-Documenting process calibrators
-Flow calibrators
-Frequency, time simulators/calibrators
-Loop optimisation analysers & software
-mV simulators/calibrators
-Power, energy calibrators
-Pressure simulators/calibrators
-Reference materials (certified)
-RTD simulators/calibrators
-Temperature (dry block)
-Temperature baths
-Thermistor simulators
-Thermocouple simulators
-Density
-Dust level
-Humidity
-Moisture content
-Thermal imaging
-Vibration/machine health
- Non-contact/ultrasonic
- Physical contact
News from Oakleaf Investment Holdings 52 (OIH):
TDR-based emulsion detector
September 2022, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)

The Genesis Model ED1, like other Magnetrol devices, is designed to maximise ease of wiring, configuration and viewing of the versatile graphic LCD display.

Next-generation magnetostrictive level transmitter
July 2016, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)

Magnetrol International has announced the release of the Jupiter Model JM4 magnetostrictive level transmitter. The JM4 is available as a direct insertion option, as well as an external mount on any Magnetrol ...

Magnetrol’s non-contacting radar transmitter
July 2016, Level Measurement & Control, Oakleaf Investment Holdings 52 (OIH)

Magnetrol International has launched the Pulsar Model R96 non-contacting radar (NCR) transmitter for accurate, reliable level control in process applications. Virtually unaffected by the presence of vapours ...

Industry news:
Energas introduces lower-cost German gas genset for South African market
October 2026, Electrical Power & Protection

Energas Technologies will supply R Schmitt Enertec’s new Energy Line genset to the South African market, offering German-engineered gas-to-power generation of 400 to 500 kW at a lower entry cost through focused standardisation and a simpler standalone architecture.

Reliable power conversion from high-voltage DC buses
October 2026, Electrical Power & Protection, Conical Technologies

The MEAN WELL DDRH-240 from Conical Technologies is a high-reliability DIN-rail DC-DC converter with a wide 250 to 1500 V DC input range, deriving stable low-voltage power directly from high-voltage DC buses in renewable energy, storage, charging, railway and industrial installations.

SA’s mining industry must put people at the heart of its digital future
October 2026, IT in Manufacturing

South Africa’s mining industry employs around 470 000 people while its digital transition accelerates. Avenir’s chief executive officer, Tshidi Mndzebele argues that technology should enable and upskill the workforce rather than replace it, setting out five ways mining can make technology work for its people.

A smarter approach to simplifying motion architecture
October 2026, Motion Control & Drives

In motion system design, the wiring and drive placement between motor and drive are often decided by default, yet they shape a machine’s cost, footprint and adaptability. Kollmorgen sets out how single-cable and decentralised architectures simplify the cabinet.

Robotic case packer achieves 99% uptime
October 2026, Motion Control & Drives, Rockwell Automation

DCC Automation designed a new robotic case packer for a nutrition supplement manufacturer using delta robots and a unified Rockwell Automation control platform, cutting changeover time from 45 minutes to 5 minutes, and achieving 99 to 99,5% uptime against the previous 10% per-shift downtime.

Offshore jack-up rig leg extension works completed ahead of schedule
October 2026, News

Mammoet has completed heavy lifting operations to extend the legs of a jack-up drilling rig being converted into a wellhead platform at Drydocks World Dubai, marking the first deployment of a CC8800-1 Boom Booster crane configuration in the United Arab Emirates.

visit www.instrumentation.co.za

         
 
 
             
   
     
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