Walfors Industrial Pty Ltd

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Walfors Industrial Pty Ltd

Thermoplastic Piping system, Engineering Plastic, Machined Components, Thermoplastic Fabrication, Extraction Fans

02/09/2026

Thermoplastic Lined Steel Piping Systems

Engineered for superior corrosion resistance, long life and reliable performance.

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

01/09/2026

When the Smartest Guy in the Room Meets the Toughest Engineered Tube (Think Sheldon vs Howard )

Imagine a piece of laboratory equipment so tough, it looks at the most corrosive, toxic liquids on Earth and says,"Is that all you've got?"

Meet the Polypropylene Exchange Column. (Say that five times fast.)

In plain human English, it’s a high-tech tube used by scientists and industrial plants to clean liquids, separate chemicals, and do magic mass-transfer experiments. But what makes it the superhero of the lab? It’s all about the material: Polypropylene (PP).

Here is why it’s a total genius:
It laughs at acid: It has a pH tolerance from 0 (super melted-battery acid) to 14 (extreme industrial bleach). It handles both without melting into a puddle.

It’s socially awkward (in a good way): It’s chemically inert. That means it doesn't react or mix with anything you pour into it. It minds its own business and keeps your chemicals pure.

It skipped leg day but still lifts:It is incredibly lightweight but structurally tough enough to survive serious industrial chaos.

At Walfors Industrial, we are the nerds who build these crazy thermoplastic systems. From massive water treatment setups to custom chemical extraction, we fabricate the gear that keeps the modern world running.
Bazinga? No, just good engineering.

Join our circle of nerdy friends for more cool builds:
Connect with us on LinkedIn
See what's cooking on Instagram
Keep up with us on Facebook

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

26/08/2026

PVC-lined tanks
PVC-lined tanks are a highly effective, cost-efficient choice for hard chrome plating because plasticised or rigid PVC offers exceptional chemical resistance against highly corrosive chromic acid. However, hard chroming presents a punishing environment where aggressive chromium fumes condense and attack the liner at the liquid-air interface, requiring specialized configurations to ensure longevity

Bonded PVC Liners:
Plasticised PVC sheets are directly adhered to sandblasted and primed steel tanks using high-strength contact adhesives, allowing the plastic and steel to expand and contract together across temperature changes.

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

24/08/2026

stainless steel manifolds
316 Stainless Steel Manifolds built for reliable water treatment applications, engineered for durability and export to Botswana.

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

19/08/2026

PTFE lined Instrument Tee

A PTFE lined instrument tee is a specialised piping fitting designed with a rugged outer metallic shell and an internal liner made of Polytetrafluoroethylene (PTFE). Its primary function is to integrate measurement instruments safely (such as pressure gauges, thermowells, sensors, or sampling lines) into pipelines carrying highly aggressive or corrosive chemicals without destroying the instrumentation or causing leaks.

Key Applications
✔ Corrosive Processing: Used extensively in chemical factories, pharmaceutical industries, petrochemical plants, and water treatment facilities.
✔ High Purity Streams: Found in the food processing and semiconductor industries due to the anti-contamination, non-stick, and smooth flow properties of PTFE.
✔ Instrument Protection: Isolates the sensitive metal alloy of instruments from harsh acids, alkalis, and solvents.

Technical Specifications & Design
✔ Size Range: Typically, available from 15 mm to 300 mm (½″ to 12″ NB), featuring a reduced branch bore specific to instrument sizes.
✔ Body Materials: Fabricated out of high-strength metals like Carbon Steel (ASTM A106 / A234 Gr. WPB), Ductile Iron, or Stainless Steel (SS 304/316).
✔ Connection Type: Often comes in wafer styles to fit neatly inside the bolt circle of standard fl**ges without taking up bulky pipeline space, or with standard fl**ged ends (ANSI Class 150/300 or DIN).
✔ Temperature and Pressure: Capable of handling operating limits from –40 °C up to +200 °C and internal system pressures up to 3.0 MPa depending on the specific application.
✔ Quality Testing: Manufacturers routinely use 15 KVA Spark Testing alongside Hydrostatic testing to ensure the liner is completely free of microscopic pinholes and 100% leak-proof.

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

18/08/2026

A complete polypropylene (PP) fan and PP ducting installation requires careful mechanical isolation, independent structural support, and airtight thermofusion welding to guarantee safe, long-term extraction of corrosive chemical fumes.

Fan Mounting & Mechanical Isolation

Independent Foundation:
Mount the polypropylene centrifugal or inline fan on a stable, vibration-damped floor base, wall bracket, or ceiling joist.

Zero Load Transfer:
Support all connected PP ducting independently using dedicated hangers. Never allow the weight of the ductwork or exhaust stack to rest on the plastic fan casing, which causes distortion, impeller rubbing, and motor damage.

Flexible Connections:
Bridge the connection between the rigid PP ducting and the fan inlet/outlet using flexible sleeves to isolate vibrations and absorb stress.

Drainage Traps:
Connect all fan housing drains to a chemical-resistant P-trap to handle condensed moisture or chemical runoff safely

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

13/08/2026

PTFE-Lined Convoluted Hoses

PTFE-lined convoluted hoses provide exceptional flexibility, kink resistance, and chemical compatibility by combining a ridged (corrugated) fluoropolymer inner core with an external reinforcement layer. They are the industry standard for routing aggressive chemicals, high-purity pharmaceuticals, or high-temperature fluids through tight or moving spaces where a rigid, smooth-bore hose would bend out of shape or fail.

Key Specifications & Performance

Temperature Range: Typically handles extreme environments from -60°C to +260°C (-76°F to +500°F) depending on the external braid selection.

Pressure Handling: Capable of moving media from a full vacuum up to 1500 PSI when paired with advanced stainless-steel braids.

Bend Radius: Can achieve incredibly tight routing with a minimum bend radius as low as 18mm to 19mm on smaller diameters.

External Braid Materials: Stainless steel (SS304/SS316) is the default choice for high-pressure durability. For lighter weight or chemical washdown resistance, walfors offers a polyethylene shrink wrap overlay

Flared/Tafted Wetted Ends: For sterile processes, the inner PTFE liner can be mechanically flared over the face of the fl**ge this ensures that the process media only touches the non-stick PTFE surface, eliminating bacterial traps or fluid contamination.

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

11/08/2026

PVC tank linings provide exceptional chemical resistance specifically for chromic acid applications (often typoed as "chronic acid"), outperforming traditional rubber options in industrial electroplating and metal finishing. Standard flexible Polyvinyl Chloride (PVC) effectively handles highly corrosive chromic solutions, but its temperature threshold typically peaks around 60°C

Material Performance SummaryLining MaterialStrengths & Best Use CasesCritical LimitationsFlexible PVCSuperior resistance to chromic acid compared to rubber. Expands and contracts at a rate similar to steel when bonded.Begins to degrade near 60°C.

Key Installation and Field ConsiderationsBonded vs. Drop-in Liners: Bonded PVC uses high-quality contact adhesives followed by expert plastic welding and strict High Voltage Spark Testing to verify seam integrity. Loose, flexible drop-in "bladder" liners require minimal tank wall preparation but must be custom-sized perfectly to prevent shifting, folding, or tearing over structural cracks

🌐 www.walfors.co.za | ✉ [email protected] | 📞 083 324 9431

09/08/2026

Happy Women’s Day

In our industry, we shape materials designed to endure extreme pressure and harsh environments.But the truest reflection of strength isn't manufactured—it is mirrored in the women of South Africa. Like our toughest engineering, you possess a quiet, unyielding resilience. You absorb life’s heaviest pressures, adapt with grace, and serve as the structural pillars holding our communities together.

To the the forces of nature, the special women in our lives.

Address

18 Cardiff Avenue
Benoni
1501

Website

http://www.walfors.co.za/

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