Infrastructure Beneath Our Feet
Australia’s infrastructure boom is transforming cities from the ground up — quite literally. From Sydney and Melbourne to regional transport corridors, tunnelling projects are reshaping how people and freight move across the country.
Beneath the surface, however, tunnel construction is one of the most demanding engineering environments imaginable. High pressures, abrasive materials, confined spaces, water ingress, vibration, and unforgiving timelines mean every component matters.
At Fox Global, we specialise in supplying complete fluid transfer, pressure control, and pipework solutions for the tunnelling and civil construction sectors. From hoses, valves, pressure gauges, pipe, couplings, and fittings, to fully engineered supply packages, we help contractors manage risk, maintain safety, and keep projects moving.
Proudly family-owned and Australian-owned and operated, Fox Global is trusted on some of Australia’s most critical underground infrastructure projects.
Why Fluid Control Is Critical in Tunnelling
Tunnel construction relies on complex fluid systems to support nearly every stage of the build, including:
- Grout injection and pressure balancing
- Dewatering and groundwater control
- Slurry and spoil movement
- Shotcrete delivery
- Dust suppression
- Fire services and temporary water systems
Failure in any one of these systems can cause downtime, safety incidents, or structural risk. That’s why contractors need suppliers who understand pressure, compatibility, and reliability under extreme conditions.
Fox Global doesn’t just supply components — we deliver confidence under pressure.
Precision Monitoring Underground: WIKA Diaphragm Pressure Gauges in Western Sydney
In the depths of Western Sydney’s expanding tunnel network, Fox Global recently supplied WIKA diaphragm-sealed pressure gauges for a critical grout pumping application.
The Application: High-Pressure Tunnel Grouting
Grouting plays a vital role in tunnelling, including:
- Stabilising surrounding ground
- Filling annular voids behind tunnel linings
- Sealing joints and penetrations
- Supporting TBM operations
Pressure control is everything. Too little pressure leaves voids unfilled. Too much pressure risks ground fracture or damage to tunnel segments.
The contractor required pressure instruments that could:
- Withstand abrasive, cementitious grout
- Deliver accurate, real-time readings
- Resist clogging and corrosion
- Perform reliably in damp underground conditions
- Provide full traceability and compliance
The Solution: WIKA Diaphragm-Sealed Pressure Gauges
Fox Global supplied 2 x WIKA 232.50 pressure gauges with 990.36 diaphragm seals, fully assembled, filled, tested, and delivered ready for installation.
Key Gauge Specifications
- Dial Size: 63 mm
- Pressure Range: 0–10 bar
- Accuracy Class: 1.6
- Measuring System: 316 Stainless Steel
- Ingress Protection: IP65
- Window: Shatterproof polycarbonate
- Mounting: Lower mount
- Serialised with QR code for traceability
Diaphragm Seal Assembly
- Model: 990.36
- Connection: G 1” Male
- Pressure Rating: PN 400
- Material: 316L Stainless Steel
- Fill Fluid: KN2 Silicone Oil
Why Diaphragm Seals Are Essential for Grout & Slurry
Standard pressure gauges are not designed to handle grout, slurry, or cementitious media. These materials are thick, abrasive, and prone to clogging internal gauge mechanisms.
A diaphragm seal isolates the gauge from the process fluid, transmitting pressure hydraulically through a sealed fill fluid.
Key Benefits
- Prevents clogging and corrosion
- Protects internal gauge components
- Improves long-term accuracy
- Extends instrument service life
- Allows easy cleaning and inspection
For tunnelling and grouting, diaphragm-sealed gauges are not optional — they are essential.
Fast Turnaround When Projects Can’t Wait
Tunnel projects don’t stop for instrumentation delays. Fox Global delivered these gauges with:
- Local stock availability
- In-house assembly and filling
- Serialisation and documentation
- Same-day dispatch to site
This responsiveness is a hallmark of how we support infrastructure projects.
Heavy-Duty Hose Assemblies for Tunnel Construction
Instrumentation is only one piece of the puzzle. Fox Global is also a trusted supplier of heavy-duty hose assemblies for tunnelling and civil works.
6” Rubber Suction & Delivery Hoses – Melbourne Tunnel Project
Fox Global recently manufactured and supplied 6-inch (150mm) rubber water suction and delivery hose assemblies fitted with shouldered Victaulic ends for a major Melbourne tunnel construction project.
Why These Hoses Matter
- Designed for high suction and delivery pressures
- Resistant to abrasion and harsh site conditions
- Suitable for dewatering, slurry, and water transfer
- Pre-crimped 3-metre lengths for easy handling
- Victaulic ends allow fast, secure installation
In confined underground spaces, speed and reliability are everything.
Victaulic & Shouldered Systems: Built for Underground Work
Shouldered and roll-grooved pipe systems are widely specified in tunnelling because they offer:
- Rapid installation without hot works
- Secure, leak-resistant joints
- Controlled flexibility and vibration tolerance
- Easy system modification and maintenance
Fox Global supplies a complete range of shouldered systems, including:
- Shouldered bends and elbows
- Tees, crosses, and Y-pieces
- Shouldered ERW pipe
- Victaulic-style couplings and clamps
- Shouldered valves and manifolds
- Shouldered-to-flange and BSP adaptors
These systems are engineered to perform under high pressure in harsh underground conditions.
Concrete Pumping & Shotcrete Hose Solutions
Fox Global also supplies high-pressure concrete and shotcrete hose assemblies for tunnelling and piling applications.
Featured Product: Alfagomma 740AA Concrete Pump Hose
- Size: 2” (50mm) x 20m
- Working Pressure: 85 bar (1275 PSI)
- Steel cord reinforced
- Abrasion-resistant conductive tube
- Ozone and wear-resistant outer cover
- Suitable for boom pumps, line pumps, tunnelling & shotcrete
Supplied complete with:
- Snap clamps
- Steel bends and reducers
- Shotcrete nozzles
When downtime isn’t an option, quality matters.
Complete Supply Packages — One Partner, One Call
Fox Global specialises in complete supply packages for tunnelling projects, including:
- Hoses and hose assemblies
- Valves (ball, gate, butterfly, check)
- Pressure gauges and instrumentation
- Shouldered pipe and fittings
- Flanged and BSP components
- Manifolds and custom assemblies
Instead of managing multiple suppliers, contractors rely on Fox Global to deliver fully integrated solutions.
Why Major Contractors Choose Fox Global
Fox Global is more than a supplier — we are a project partner.
The Fox Global Advantage
- Family-owned, Australian-owned & operated
- Extensive local stock
- In-house assembly and custom fabrication
- Genuine, trusted brands
- Fast response and same-day dispatch
- National delivery capability
- Deep tunnelling and civil construction knowledge
We understand the pressure you’re under — because we work in it every day.
Supporting Australia’s Critical Infrastructure
From Sydney and Melbourne tunnel projects to regional civil works, Fox Global supports infrastructure that keeps Australia moving.
Our experience spans:
- Tunnelling and rail
- Civil construction
- Mining and resources
- Water and wastewater
- Utilities and services
No matter the scope, our focus is the same: safe, reliable, compliant solutions.
Conclusion: Precision Matters Underground
In tunnelling, there’s no margin for error. Whether it’s a pressure gauge monitoring grout injection, a concrete hose delivering shotcrete, or a shouldered pipe system managing water underground — every component carries responsibility.
Fox Global delivers:
- Products you can trust
- Expertise you can rely on
- Service that responds when it matters
That’s why Australia’s tunnelling sector continues to choose Fox Global.
Contact Fox Global
📞 Call Fox Global: 1300 852 795
📧 Email: sales@foxglobal.com.au
Call 1300 852 795 or email sales@foxglobal.com.au for complete fluid transfer solutions.
