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PVC PRESSURE PRODUCTS

SANS 966-1 UPVC PIPES

Flo-Tek pipes and fabricated fittings are intended for below ground pressure applications for the conveyance of potable water and reticulation systems, and for other applications in which continuous temperatures in excess of 25 °C are not encountered.

DesignationStandardMRS (MPA)Design StressSafety Factor
PVC-U 20-90mmSANS 966-12510.02.5
PVC-U 100-90mm
SANS 966-1
2512.52.0

 FEATURES & BENEFITS

  • Environment-friendly & Lead-free material.
  • Excellent flow characteristics: reduces friction losses.
  • Best long-term strength (serves in excess of 50 years).
  • Long-term strength, toughness and stiffness.
  • Large bore and high flow capacity.
  • Durability and toughness.
  • Resistant to acids and alkalis.
  • Resistant to abrasion, scouring and modern cleaning methods.
  • Light mass: for easy handling and installation.
  • Elastomeric locked-in sealing ring system.
  • Inflammable: Does not support combustion

PIPE DIMENSIONS

All pipes are made to provide an effective length of 6.0 meters from 20mm - 250mm and 5.8 meters from 315mm - 500mm after installation; the outside diameters are the same for all pressure classes of the same size and there are 6 classes of pipes. The minimum wall thickness and mass per meter are given in the table below.



SANS 966-2 MPVC PIPES

Flo-Tek pipes and fabricated fittings are intended for below ground pressure applications for the conveyance of potable water and reticulation systems, and for other applications in which continuous temperatures in excess of 25 °C are not encountered. 

DesignationStandard  MRS (MPA)     Design Stress  Safety Factor     
PVC - M 50 - 500mmSANS 966-2      25           18.01.4

 FEATURES & BENEFITS

  • Modified polymers achieve improvement in resistance to cracking.
  • Minimization of the effect of stress concentrators such as scratches.
  • Reduction in the factor of safety.
  • Higher wall stresses are allowable, which lead to reduced wall thickness.
  • The increased internal diameter for a given external diameter than PVC-U and ductile iron.
  • Depending on size and class, weight savings in excess of 10% over PVC-U.
  • PVC-M pipes will not affect the taste, smell, appearance or health aspects of drinking water.

PIPE DIMENSIONS

All pipes are made to provide an effective length of 6.0 meters from 50mm - 250mm and 5.8 meters from 315mm - 500mm after installation; the outside diameters are the same for all pressure classes of the same size and there are 5 classes of pipes. The minimum wall thickness and mass per meter are given in the table below.


SANS 1283 - UNDERGROUND MINING PIPES

Flo-Tek pipes are intended for underground mine pressure applications for the conveyance of non-potable water in which continuous temperatures from 5 °C  to 25 °C are observed.

DesignationStandard  MRS (MPA)     Design Stress  Safety Factor     
PVC - M 110,160 & 200mmSANS 1283      25           12.52.0

PIPE STANDARDS

The Southern African mining industry presents one of the most demanding applications for PVC pressure pipes anywhere in the world. Plastic pipes are preferred over conventional steel pipes because of their light mass, quick and easy installation and most importantly, their resistance to the most corrosive of environments. In addition, because they are poor conductors of heat they offer an ideal pipe for the conveyance of chilled water in underground mines in order maintain a reasonable, safe working environment. Modified PVC pipes are also self-extinguishing hence improving safety.

Given harsh mining environments, rough handling and installation, as well as stringent safety considerations, it is necessary to produce a toughened, impact resistant PVC pipe by the incorporation of impact modifiers. In addition, as the pipes are suspended in the haulage ways and not buried; an end thrust resistant joint is required to prevent pipes from pulling apart under pressure. A Victaulic shouldered end produced from cast and machined SG iron is fitted to the end of each pipe and joined by standard Victaulic clamps and rubber seals. The steel Victaulic stub end is precision machined with gripping teeth on the inside to provide a mechanical interference fit with the pipe that is resistant to high
pressures. The shouldered end is galvanised to provide protection against corrosion.

The toughened PVC-M pipe and Victaulic jointing system has been used in the mining industry since the late l970‘s and proven itself over the past 30 years as a cost-effective and lasting piping system. The Victaulic stub allows for jointing to steel pipes as well as the use of standard corrosion protected mild steel fittings such as tees, bends and saddles, etc. Victaulic clamps and seals and fittings are generally standard stock items in mining stores. A full range of fabricated fittings with Victaulic shouldered ends made from tough, modified PVC pipe is also available. The following photographs illustrate the pipe system.

A full range of fabricated fittings with Victaulic shouldered ends made from tough, modified PVC pipe is also available. High impact PVC-M pipes are made to the SANS 1283 specification which ensures consistent, high-quality products.  The result of the high-speed impact test from a height of 20m (carried out according to the procedure detailed in SANS 966 Part 2 and SANS 1283) illustrates the toughness properties exhibited by PVC-M pipes. Note the ductile nature of the ‘failure’ where a hole is formed with stress whitening as opposed to brittle-type failure.

FEATURES & BENEFITS

  • Modified polymers achieve improvement in resistance to cracking.
  • Minimization of the effect of stress concentrators such as scratches.
  • Higher wall stresses are allowable.
  • PVC-M pipes will not affect the taste, smell, appearance or health aspects of drinking water.
  • Environment-friendly & Lead-free material.
  • Excellent flow characteristics: reduces friction losses.
  • Best long-term strength (serves in excess of 50 years).
  • Long-term strength, toughness and stiffness.
  • Large bore and high flow capacity.
  • Durability and toughness.
  • Resistant to acids and alkalis.
  • Resistant to abrasion, scouring and modern cleaning methods.
  • Light mass: for easy handling and installation.
  • Inflammable: Does not support combustion

PIPE DIMENSIONS

All pipes are made to provide an effective length of 6.0 meters after installation; the outside diameters are the same for all pressure classes of the same size and there are 6 classes of pipe. The minimum wall thickness (as per the applicable SABS standard) and mass per meter are given in the tables below.

BOBS ISO 1452-2 UPVC PIPES

Flo-Tek pipes and fabricated fittings are intended for below groundwater supply, drainage and sewerage under pressure applications in which continuous temperatures between 25°C and 45°C are encountered.

PIPE STANDARDS

Flo-Tek’s pressure pipe produced under this standard covers pressure sewer pipes, where as there is no standard in SABS to cover pressure sewer pipe.

DesignationStandardMRS (MPA)Design StressSafety Factor
PVC-U 20-90mmISO 1452-22510.02.5
PVC-U 110-500mm
ISO 1452-2
2512.02.0

FEATURES & BENEFITS

  • Buried and sewerage under pressure application.
  • Environment-friendly & Lead-free material.
  • Excellent flow characteristics: reduces friction losses.
  • Best long-term strength (serves in excess of 50 years).
  • Long-term strength, toughness and stiffness.
  • Large bore and high flow capacity.
  • Durability and toughness.
  • Resistant to acids and alkalis.
  • Resistant to abrasion, scouring and modern cleaning methods.
  • Light mass: for easy handling and installation.
  • Elastomeric locked-in sealing ring system.
  • Inflammable: Does not support combustion

PIPE DIMENSIONS

All pipes are made to provide an effective length of 6.0 meters after installation; the outside diameters are the same for all pressure classes of the same size and there are 6 classes of pipe. The minimum wall thickness (as per the applicable SABS standard) and mass per meter are given in the tables below.


PVC FITTINGS


Flo-Tek supplies fabricated fittings suitable for irrigation, civil and agricultural industries. These fittings are fabricated from SABS approved 966-1 UPVC and 996-2 MPVC pipes. A full range of fabricated UPVC and MPVC fittings is available in most sizes up to 315mm; these include tees, bends, hydrants, reducers, adaptors for joining to repaired AC pipes, etc. These fittings are made in two pressure classes, 9 and 16. We also have a range of Cast Iron fiitings and Valves available.


CAST IRON VALVES & FITTINGS

Flo-Tek supplies a range of Cast Iron Valves and Fittings. They have corrosion protective coatings and are also used extensively by the water industry. These are usually of the socket ribber ring type as used on PVC or HDPE and flanged fittings. Viking Johnson fittings are also used for joining plain ended PVC pipes.

Valves Product Range

  • Flanged Resilient Seated Gate Valve – SABS 664
  • Socketed Resilient Seated Gate Valve – SABS 664
  • Plain End Resilient Seated Gate Valve
  • Manufactured Flanged Resilient Seated Gate Valve – PN16
  • Flanged Wedge Gate Valve – PN16 – SABS 664
  • Resilient Seated Gate Valve – Rising Spindle – SABS 665
  • Wedge Gate Valve Industrial Pattern -Non Rising Spindle – PN 10
  • Wedge Gate Valve Industrial Pattern - Rising Spindle - PN 10
  • Fire Hydrant Valves

  • Shouldered Butterfly Valve – Rubber Lined Disc
  • Shouldered Non Return Valve
  • Shoulderd Coupling
  • Diaphragm Valve
  • Butterfly Valve Wafer Nickel Plated Disc -PN16 Pinned
  • Butterfly Valves Wafer Type 316SS Disc-PN16 Pinned
  • Gearbox for Butterfly Valve Wafer type
  • Butterfly Valve Wafer Type, 304 Stainless Steel Disc Pinned
  • Butterfly Valve Wafer Type, 316SS disc, Pinless – PN25
  • EPNS Butterfly Valves Wafer 316 Stainless Steel Body & Disc (Spline Shaft) PTFE Liner-PN16
  • Double Eccentric Flanged Butterfly Valves
  • Slurry Wafer Butterfly Valves

Fittings Product Range

  • Unequal Tee
  • Scour Tee
  • Equal Tee
  • Flange Adaptor
  • Reducing Socket
  • Reducing Bush
  • End Cap
  • Repair Coupling
  • Hydrant Tee
  • Scour Tee