Pressure Measurement Where Failure Is Not an Option
In Australia’s most demanding industrial environments — tunnelling, mining, food processing, meatworks, infrastructure, and heavy industry — pressure measurement is not just about monitoring systems. It’s about safety, accuracy, compliance, and control.
A single incorrect pressure reading can lead to structural damage, process failure, product contamination, or serious safety incidents.
That’s why Fox Global is trusted as Australia’s No.1 pressure gauge specialist.
As a family-owned, Australian-owned and operated business, Fox Global supplies high-quality pressure gauges, diaphragm seals, and custom instrumentation solutions designed to perform reliably in real-world conditions — not just on paper.
Why Pressure Gauges Matter More Than Ever
Pressure gauges are often viewed as small components, but in reality, they carry enormous responsibility.
They are critical for:
- Grout injection and ground stabilisation
- Mining slurry and pumping systems
- Food and meat processing control
- Chemical and corrosive process monitoring
- Vacuum and low-pressure applications
- High-pressure hydraulic systems
In applications such as tunnelling or grout pumping, every kPa matters. Too little pressure and the job fails. Too much pressure and the structure, equipment, or personnel are placed at risk.
Fox Global understands this — because we work directly with contractors, engineers, operators, and maintenance teams across Australia.
Project Spotlight: High-Pressure Grouting in Western Sydney Tunnelling
Deep beneath Western Sydney’s expanding tunnel network, pressure control is critical to structural integrity and worker safety.
A major tunnelling contractor recently engaged Fox Global to supply two high-accuracy WIKA pressure gauges with diaphragm seals for high-pressure grout injection.
This was not a large order by quantity — but it was critical by function.
Application Requirements
The gauges needed to:
- Withstand abrasive, cementitious grout
- Deliver accurate readings under dynamic pressure
- Operate in damp, confined tunnel conditions
- Provide traceability and inspection confidence
- Be available immediately to avoid delays
Fox Global delivered a solution that met every requirement — quickly, accurately, and without compromise.
The Equipment: WIKA Pressure Gauges with Diaphragm Seals
Pressure Gauge Specifications
- Model: WIKA 232.50.063
- Dial Size: 63mm
- Pressure Range: 0–10 bar
- Accuracy Class: 1.6 (EN 837-1)
- Measuring System: 316 Stainless Steel
- Window: Shatterproof polycarbonate
- Case Protection: IP65
- Mounting: Lower mount
- Adjustable Pointer
- Zero Stop-Pin
- Serialised with QR code for traceability
Diaphragm Seal Assembly
- Model: WIKA 990.36
- Seal Type: Flush diaphragm
- Connection: G 1” Male
- Nominal Pressure Rating: PN 400
- Material: 316L Stainless Steel
- Fill Fluid: KN2 Silicone Oil
- Assembly: Direct mount, high-side
Each assembly was custom-built, filled, pressure-tested, inspected, and labelled prior to dispatch.
Why Diaphragm Seals Are Essential in Grout & Slurry Applications
Traditional pressure gauges fail quickly when exposed to grout, slurry, cement, or particulate-laden media.
The Problem
- Bourdon tubes clog
- Internal components corrode
- Readings become unstable
- Gauges fail prematurely
The Solution: Diaphragm-Sealed Gauges
A diaphragm seal isolates the pressure gauge from the process media while still transmitting pressure accurately.
Key benefits:
- No media contact with internal gauge components
- Protection from abrasion and clogging
- Longer instrument life
- Stable, repeatable readings
- Easy cleaning with flush diaphragm face
For grout pumping, tunnelling, mining slurry, and contaminated processes — diaphragm seals are not optional. They are essential.
Fast Response: From Order to Tunnel
This project highlights what sets Fox Global apart.
How We Delivered
- Local Stock: WIKA gauges and diaphragm seals held in Australia
- In-House Assembly: Direct-mounted, filled, tested
- Traceability: Serial numbers, QR codes, tagging
- Speed: Same-day dispatch to site
No delays. No substitutions. No guesswork.
Pressure Monitoring in Sydney Tunnel Works
Fox Global also supplied 100mm liquid-filled pressure gauges with 6-bolt diaphragm seals for grout injection lines during major Sydney tunnel construction works.
Gauge Details
- 100mm face
- 0–2500 kPa
- Bottom entry 3/8 BSPP
- Stainless steel case
- Glycerine filled for vibration resistance
Diaphragm Seal
- 6-bolt stainless steel
- 3/4 BSPT process connection
- Designed for corrosive, contaminated media
These instruments provide real-time pressure monitoring during ground anchor installation — a critical safety and quality requirement.
Pressure Gauge Selection: Fox Global’s Expertise
Selecting the correct pressure gauge requires more than choosing a pressure range.
Fox Global assists customers through four critical selection factors:
1. Process Media
Is the media:
- Corrosive?
- Abrasive?
- Containing solids?
- Hygienic or food-grade?
We advise on:
- Brass vs 316 stainless steel
- Diaphragm seals
- Gauge savers
- Special constructions (oxygen, acetylene, etc.)
2. Process Pressure
Industry best practice:
- Gauge range should be 2x operating pressure
- Fluctuating pressure = liquid-filled gauge
- High pressure = reinforced internals and protection
3. Environment
- Dust
- Moisture
- Vibration
- Heat
- Washdown
Fox Global recommends:
- Hermetically sealed gauges
- Liquid-filled cases
- Remote mounting where required
4. Accuracy
Accuracy is expressed as % of full-scale deflection (FSD).
We supply gauges ranging from:
- ±3% FSD (general purpose)
- Down to ±0.25% FSD (critical measurement)
Calibration certificates available on request.
Custom Pressure Gauges Across Australia
Fox Global regularly supplies custom-dial pressure gauges for site-specific requirements, including:
- 4” (100mm) dual-scale –30/+30kPa gauges for meatworks
- 6” (150mm) 0–4000kPa gauges for processing plants
- 63mm liquid-filled 1000kPa gauges for WA mine sites
- –5kPa to +5kPa gauges for food production facilities
Custom dials improve clarity, safety, and compliance.
Fox Global’s Complete Pressure Gauge Range
We stock and supply:
- 50mm, 63mm, 100mm, 150mm faces
- Vacuum to 400 bar
- Bottom or rear entry
- Stainless steel or aluminium cases
- Liquid-filled or dry
- Dual scale options
- Panel mount gauges
- Diaphragm seals & gauge savers
- Custom dial printing
More Than Gauges: Complete Fluid Control Solutions
Fox Global supplies:
- Pressure & temperature gauges (WIKA, Ashcroft & more)
- Diaphragm seals & isolators
- Valves: ball, butterfly, gate, check
- Hoses & hose assemblies
- Camlocks, flanges & fittings
- Pumps, filters, meters
We support:
- Tunnelling & civil contractors
- Mining operations
- Food & meat processing
- Utilities & water authorities
- Hire & pumping companies
Why Fox Global Is No.1
✅ Australian owned & family operated
✅ Local stock & fast dispatch
✅ In-house assembly & testing
✅ Genuine WIKA instrumentation
✅ Technical expertise you can speak to
✅ Trusted across Australia’s toughest industries
Conclusion: Small Instruments. Massive Responsibility.
Pressure gauges may be small, but the responsibility they carry is enormous.
At Fox Global, we treat every gauge — whether it’s one unit or one hundred — as critical.
Because in high-risk environments, accuracy is safety.
Contact Fox Global
📞 Call Fox Global: 1300 852 795
📧 Email: sales@foxglobal.com.au
🌐 Website: www.foxglobal.com.au
Fox Global — Australia’s No.1 Pressure Gauge Specialist.
