Category: Pressure Instruments

Home -> Category: Pressure Instruments

Pressure Instruments

High-Pressure Hydraulic Hand Pump 350 Bar | QTHP
Price range: R28,044.00 through R29,954.00 ex vat
High-Pressure Hydraulic Hand Pump - Overview

The sleek design of the High-Pressure Hydraulic Hand Pump 350 bar allows you to test pressures up to 5000 psi without having to lock a stroke-limiting knob. It’s compact and easy to use. As it’s machined from solid stainless steel, it provides steady, stable pressure with absolute precision.

High-Pressure Hydraulic Hand Pump - Features
- Pressure transmitter calibration
- Pressure gauge calibration
- Field testing where power inputs are unavailable or unsuitable
- Pressure switch testing
- Leak testing pressure instruments
- Lightweight and easy to use
- Extremely durable — resistant to shock, extreme temp, and chemical exposure
- Easy to disassemble and repair with standard hand tools
- Machined from solid, stainless steel preventing pressure leaks
- Includes Ralston Quick-test adapters and hoses for quick & efficient connection
- Compatible with most liquids
- The pump comes fitted with a fill plug with over-pressure relief for easy setup
Datasheet

[embed]https://youtu.be/P2nM4HZNkgk [/embed]

Select options
High-Pressure Hydraulic Hand Pump 700 Bar | XTHP
Price range: R38,188.00 through R43,801.00 ex vat
High-Pressure Hydraulic Hand Pump 700 Bar XTHP Overview

The High-Pressure Hydraulic Hand Pump 700 XTHP is a powerful hand-operated hydraulic pump that can quickly generate high pressure up to 10,000 psi / 70 MPa without having to lock a stroke limiting knob. It’s compatible with most fluid media and provides consistent, steady pressure - even when subjected to temperature fluctuations, shocks, impacts, and hazardous chemicals. Solid, stable pressure up to 10 000 psi / 70 MPa.

High-Pressure Hydraulic Hand Pump 700 Bar Features
- Balanced Construction
  With the pressurized section located below the reservoir, the XTHP manual hydraulic pump is much easier to handle than similar hand-operated hydraulic pumps. It’s not top-heavy - you can even hold it and pump with one hand.
- Durable Design
  The XTHP is a manual hydraulic pump that’s built to last. Its stainless steel components prevent leaks that are common in cast material, and it includes a shock-resistant reservoir, Viton o-ring seals that are impervious to harmful chemicals, and sturdy metal handles that won’t wear out or break when dropped.
- Stable Pressure
  It's machined from solid stainless steel, preventing leaks and ensuring consistent, steady test pressure.
- Quick Priming Piston
  Quickly fill the system with fluid media, then easily switch back to the high-pressure piston, saving time and muscle.
- High-Pressure Fittings
  Includes Ralston Quick-test XT 10,000 psi hose and adapters for fast, safe high-pressure connections without a wrench or thread tape.
- Pressure calibration testing on gauges, transmitters, flow computers & chart recorders
- Pressure switch testing
- Testing liquid PSVs in the field
- Field testing where power inputs are unavailable or unsuitable
Datasheet

[embed]https://youtu.be/5Wd5PGuARDg [/embed]

Select options
Indoor Differential Pressure Transmitter | PMD330
Price range: R2,575.00 through R2,928.00 ex vat
Indoor Differential Pressure Transmitter - Overview

The PMD330 indoor differential pressure transmitter is used to measure the pressure drop between two points. Ideal for use in the building management, hospital or pharmaceutical industry to make sure filters are in good working order. The ergonomic design allows for the unit to display options on a backlit LCD monitor. The units come with analogue or digital Modbus RTU communications options. Ranges can be defined by a dip switch and the device can be calibrated and adjusted with software. With options of a M12 Connector or wired through a cable gland.

Indoor Differential Pressure Transmitter - Features
- Silicon chips on differential pressure module of MEMS integration technology
- Offset function / UI software
- Square root function
- Low-pressure monitoring, high-pressure resistance
- RS-485 communication interface(Optional), Modbus RTU protocol
- DIP switch output and range switch
- Physical unit switch(User Interface)：mbar / Pa / hPa / kPa / mmH₂O / mmWS / inH₂O / mmHg
Select options
1
NitroPak Calibration System 210 bar | NPAK
Price range: R145,265.00 through R159,695.00 ex vat
NitroPak Calibration System - Overview

The NitroPak Calibration System is a self-contained portable nitrogen pressure calibration kit that provides a high-pressure nitrogen source for calibrating differential and static pressure instrumentation using an external pressure calibrator. It includes an onboard storage cylinder, nitrogen pressure regulator, and a precision volume controller for extremely fast and accurate pressure control. NitroPak users can easily reach each test point without pumping or using leaky connections, up to 3,000 PSI/ 210 bar. Because it has no electronics in it there are no issues with using it in North American Class 1, Division 1 or 2 locations and ATEX or IECEX Zone 0, 1 or 2 locations. It’s an ideal compressed gas solution in any environment. Great for remote locations. With a carbon fibre cylinder, ABS plastic case and an ergonomic handle, the NitroPak Calibration System is the nitrogen pressure test kit you can take with you wherever you need to go.

NitroPak Calibration System - Features
- Proprietary pressure balanced fine adjustment piston allows for extremely precise, finger-tip control of pressure at 0.03 psi (2 mbar) to 3000 psi (210 bar)
- Easily refillable nitrogen cylinder holds enough gas for multiple calibrations
- A nylon bag to hold the hose and fittings is conveniently attached to the inside of the lid
- Includes a storage compartment in the control panel for pressure reference test gauge
- Low volume Quick-test™ hose, gauge adapters, and process connection can be attached to the NitroPak without thread sealant or a wrench
- Designed to meet US Department of Transportation (DOT) and Canadian Transport Canada (TC) standards
- CE Approved for use in European Union - Designed to meet Pressure Equipment
- Directive (PED) and Transportable Pressure Equipment (TPED) standards
[embed] https://youtu.be/Rug7EuiyfzU [/embed]

Select options
2
Digital Pressure Calibrator Display | FieldLab
Price range: R68,339.00 through R76,928.00 ex vat
Digital Pressure Calibrator Display - Overview

The Digital Pressure Calibrator is a safe device designed to work on site. It is certified Intrinsically Safe for hazardous locations anywhere in the world. Pressure safety valve crack tests and seat tightness tests can be performed with precision while generating solid data to back up your observations. Single-button logging of both Devices Under Test (DUT) and Reference readings allow techs to get digital logging of test points and instant tolerance feedback. The Fieldlab Test Modes easily create Test Modes for the work that needs to be done and how you want your data returned. Activate your custom Test Mode on your FieldLab to ensure repeatability and traceability. The Pressure Calibrator Display comes with all standard engineering units used to measure pressure or vacuum and can instantly swap units without searching through menus. For general purpose data logging, the instrument can monitor pressure over short or very long periods at customised intervals.

Digital Pressure Calibrator Display - Features
- Customise Log Interval & Duration
- Long Term Field Monitor (3 months on a single charge)
- 2 Million Data Points Onboard Storage
- Wellhead Monitoring
- Chart Recorder Replacement
Pressure Range Options
- 5 psi / 350 mbar / 35 kPa = GB
- 15 psi / 1 bar / 100 kPa = GD
- 30 psi / 2 bar / 200 kPa = GF
- 50 psi / 3.5 bar / 350 kPa = GH
- 100 psi / 7 bar / 700 kPa = GJ
- 300 psi / 20 bar / 2 MPa = GL
- 500 psi / 35 bar / 3.5 MPa = GN
- 1,000 psi / 70 bar / 7 MPa = GP
- 3,000 psi / 200 bar / 20 MPa = GR
- 5,000 psi / 350 bar / 35 MPa = GT
- 10,000 psi / 700 bar / 70 kPa = GV
Process Connection Options

¼" Male BSPP = 2B
¼" Male NPT = 2M
Ralston Male Quick-test™ = QM
Ralston Male Quick-test™ XT = XM

Accessories

Wireless Module = W1
WeatherProof Enclosure = E0
WeatherProof Enclosure with pole mounting hard = EH
Solar Panel = SP

[embed]https://youtu.be/fWdkWt_seTA[/embed]

Select options
Pneumatic Pressure Hand Pump | DCAP
Price range: R23,975.00 through R28,043.00 ex vat
Pneumatic Pressure Hand Pump - Overview

The Pneumatic Pressure Hand Pump DCAP is an exceptionally durable hand pump for use in the field for doing pressure calibration, testing, and custody transfer. It also performs pneumatic field calibrations on pressure transmitters, switches, or gauges using an external pressure calibrator as the reference.

Pneumatic Pressure Hand Pump - Features
Pressure calibration can be performed without electricity or nitrogen

Two outlet ports allow the user to attach the pump to both devices under test and external pressure reference

Fine adjustment piston allows the user to achieve an exact pressure for cardinal point pressure calibrations

Precisely vent pressure with soft seated bleed valve

Low volume Quick-test hose, gauge adapter, and process connection can be attached to pump without thread sealant or a wrench

Rugged, all-metal construction improves temperature and pressure stability
[embed] https://youtu.be/9yjbtALl2Mc [/embed]

Select options
1
Pneumatic Pressure-Vacuum Hand Pump | DCAP-PV
Price range: R33,356.00 through R34,837.00 ex vat
Pneumatic Pressure-Vacuum Hand Pump DCAP-PV Overview

A versatile, easy-to-use pressure pump that allows you to quickly switch to vacuum testing with just a turn of a knob, the Ralston DCAP-PV Pressure-Vacuum Hand Pump is ideal for calibrating DP pressure transmitters, testing pressure switches, or checking pressure gauges in the field.

Pneumatic Pressure-Vacuum Hand Pump DCAP-PV Features
Ability to generate pressure to 650 psi / 4.5 MPa

Ability to generate vacuum to 28.5 inHg / 710 mmHg

Quick switch from pressure to vacuum testing at the turn of a knob - no additional tool required

Each pump comes with Ralston Quick-test™ connections for easy connection in the field

Multiple pressure ports for connecting both a reference gauge and a hoe to the device under test

Durable, no-slip metal handles do not fatigue and come loose over time

Stainless steel fittings prevent damage from corrosion, wear or hazardous substances

Fine adjust piston with bronze bearing allows smooth, precise adjustment of pressure

Made in the USA
[embed] https://youtu.be/rHQNhtfFCjk [/embed]

Select options
1
Pressure Regulators | XREG
Price range: R16,434.00 through R34,244.00 ex vat
Pressure Regulator - Overview

Single-stage pressure reducing regulators are used in providing stable pressure to precision pressure control devices.

XREG Features
- Outlet pressures up to 3000 psi (210 bar)
- Great for test stands and test benches
- Lighter than most other regulators on the market
- Can be panel mounted
- Smooth pressure adjustment with bronze bearing
- An excellent accessory for Ralston Instruments volume controllers, Nitropaks, and calibration manifolds
[embed] https://youtu.be/WGZ2ARLsxEY [/embed]

Select options
Pneumatic Cylinder Hand Pumps
Price range: R13,000.00 through R19,609.00 ex vat
Pneumatic Cylinder Hand Pumps - Overview

The Pneumatic Cylinder Hand Pumps generate vacuum or a pressure for precisely calibrating low pressure or vacuum instrumentation using an external pressure calibrator. The Pneumatic Cylinder Hand Pumps include the DP0V Pressure Range (0 to 125 psi), DV0V Vacuum Range (0 to -23 inHg), and DPPV Vacuum and Pressure Range (-23inHg to 125 psi). The Pneumatic Cylinder Hand Pumps are an economical solution for the calibration of low-pressure differential transmitters. Simple direct-acting pump action with a fine adjustment piston makes an easy and precise pressure setting.

Pneumatic Cylinder Hand Pumps - Features
- Modular design makes field maintenance quick and easy
- Two outlet ports provide connections for both pressure reference and the device under test
- Low volume Quick-test hose, gauge adapter, and process connection can be attached to pump without thread sealant or a wrench
- Rugged, all-metal construction reduces pressure changes due to temperature fluctuations
DVOV
- Lightweight, compact pump generates 23 inHg (584mm Hg)vacuum with ease
- Large volume fine adjustment piston provides precise control, even at very low vacuums
DPPV
- Generate either 125 psi (8.6 bar) pressure or 23 InHg (584 mm Hg) vacuum with the same pump
- Unique design allows the user to convert from pressure to vacuum by simply twisting a knob, even with gloves on
DP0V
- Lightweight, compact pump generates 125 psi (8.6 bar) pressure with ease
- Precisely vent pressure with soft seated bleed valve
[embed] https://youtu.be/lbt9PmLjVYw [/embed]

Select options
Clean Room Temperature, Differential Pressure and Humidity Panel | CRP5
Price range: R56,064.00 through R75,780.00 ex vat
Clean Room Temperature, Differential Pressure and Humidity Panel - Overview

This reliable panel measures differential pressure, humidity and temperature. It is designed specifically for clean rooms. It has removable humidity and temperature probes which make adjustments and cleaning easier. It is also fitted with a diaphragm sensor for differential pressure measurement, making this a top-quality device. It is FDA- and GAMP-compliant. Up to 6 measurement values and messages can be displayed via its graphical colour display. Alarms, such as faults, exceeded limit values, or warnings are highlighted on the CRP5 display, and can also be forwarded digitally. Digital communication can be done via Ethernet RJ45 and/or MODBUS TCP / RTU. Analogue input and output signals are freely configurable. The glass front panel is highly resistant to chemicals and can be operated using protective gloves. This well-thought-out design is suitable for use in laboratories and clean rooms.

Clean Room Temperature, Differential Pressure and Humidity Panel - Features
- Measures differential pressure, humidity and temperature
- Designed specifically for clean rooms
- Removable humidity and temperature probes
- GAMP-compatible
- Communication via Ethernet RJ45 and/or MODBUS TCP / RTU
- Analogue input and output signals freely configurable
- Glass front panel highly resistant to chemicals
Select options
Digital Differential Pressure Transmitter | P064
Price range: R7,973.00 through R9,364.00 ex vat
Digital Differential Pressure Transmitter - Overview

The P064 digital differential pressure / pressure transmitter is a high-performance pressure transmitter incorporating advanced monocrystalline silicon pressure sensor technology. This product uses a diaphragm that has double overpressure protection and also has an internal circuit with anti-surge protection. It can accurately measure differential pressure, flow, vacuum, liquid level, and density.

Digital Differential Pressure Transmitter - Features
- Advanced monocrystalline silicon differential pressure sensor
- Wide range covering：0.1 ... 25 bar
- Measures liquid, gas, steam, liquid level
- 2-wire, 4 ... 20 mA+HART® protocol digital communication
- LCD, backlit display, remote transmission and local zero, span adjustment
- High accuracy, good stability
- Stainless steel housing
- IP rating：IP65
- Strong resistance to frequency conversion interference
- High static pressure, high overpressure protection
- Diaphragm with patented double overpressure protection design
- Lightning protection circuit design
Select options
Piezoresistive Differential Pressure Transmitter | PO63
R4,983.00 ex vat
Piezoresistive Differential Pressure Transmitter - Overview

The Piezoresistive Differential Pressure Transmitter is assembled using a piezoresistive silicon differential pressure sensor filled with oil. The shell is made of stainless steel and has strong corrosion resistance. The two pressure ports are threaded and can be mounted directly on the measuring pipe or connected through the pressure pipe. It has standard voltage/current output options, which can be easily installed and used. The products are widely used in the measurement and control of differential pressure, liquid level and flow in process control, aviation, aerospace, automotive, medical equipment, HVAC, etc.

Piezoresistive Differential Pressure Transmitter - Features
- Easy to install
- 316L stainless steel diaphragm structure
- Differential pressure measurement
- Short circuit protection and reverse polarity protection
- Excellent shock resistance, vibration resistance and electromagnetic compatibility resistance
- Customisation available
Select options
Differential Pressure Transmitter | PF4/5
Price range: R19,884.00 through R23,524.00 ex vat
Differential Pressure Transmitter - Overview

The new differential pressure transmitters, PF4 and PF5, use two different sensor technologies (PF4-thermal measuring method, PF5-diaphragm sensor). They consistently produce excellent measurement results thanks to an integrated ambient pressure sensor. Both sensors are equipped with automatic zero point compensation. In the PF4, this is carried out automatically every 5 ms in the sensor. In the PF5, automatic compensation is performed with the help of an internal valve and programming in the HW4 V3.9.0. Both instruments can be ordered with a HygroClip2 connection or a B4 connector for PT100. The colour display allows users to display up to 4 lines and a maximum of 3 measured values. All analogue outputs, inputs and alarm settings can be changed via the intuitive menu. Both device types can be integrated easily into any monitoring system because of the analogue and digital communication abilities. Suitable for heating, ventilation, air conditioning, food industry, pharmaceutical and clean room applications.

Differential Pressure Transmitter - Features
- 1 to 3 analog outputs, 1 analog input
- Network-compatible (Ethernet)
- Modbus capable TCP or RTU via RS485
- Potential-free relay with changeover contacts
- Flow or diaphragm differential pressure sensors
https://www.youtube.com/watch?v=wth0WtLmkzw

Select options
Thermal Differential Pressure Transmitter | PHM330
R15,984.00 ex vat
Thermal Differential Pressure Transmitter - Overview

The Thermal Differential Pressure Transmitter is designed on the MEMS hot wire anemometer design. This combines with the integrated circuit to convert data into a differential pressure signal. It has very good zero point stability and small differential pressure detection capability. It also boasts a high-pressure resistance.

Thermal Differential Pressure Transmitter - Features
- Modbus RTU protocol
- Physical switch : mmWS / inH₂O / mmHg / mbar / Pa / hPa / kPa / mmH₂O
- Square root function
- Option RS-485 communication interface
Select options
Differential Pressure Transmitter | PHD330
R14,295.00 ex vat
Differential Pressure Transmitter - Overview

This differential pressure transmitter is designed according to the MEMS hot wire anemometer technology. This has very good zero point stability and small differential pressure detection capability, as well as high-pressure resistance. The transmitter, using the pressure difference, passes a very small amount of gas through the airflow channel of the sensor. Combined with the integrated circuit, it converts into a differential pressure signal.

Differential Pressure Transmitter - Features
- Low-pressure monitoring, high-pressure resistance
- Silicon chips on differential pressure module of MEMS integration technology
- RS-485 communication interface (Optional), Modbus RTU protocol
- Physical unit switch (User Interface): mbar / mmWS / inH2O / mmHg/ Pa / hPa / kPa / mmH2O
- Square root function
- Offset function / UI software
Select options