HDPE Structured Wall Sewer / Stormwater Pipe & Manholes...2020/06/08 · hot plastic state to create a smooth internal surface. This results in a light-weight HDPE Structured Wall

163 Lloyd Street , Pretor ia Industr ia l , Pretor ia West , 0117

www.sinvac.co.za

[email protected] :+27(0)12-386 6484

Manufactured in

accordance with

SANS21138

“Your Single Source HDPE Solution Company”

B-BBEE level 2

Member of:

Manufacturer of

SINVACLITE™HDPE Structured Wall

Sewer / Stormwater Pipe & Manholes

D2 & D3

Dolomite Land SANS 1936-3 : 2012

Approved

Hot Gas Extrusion

Welded Joints In accordance with

SANS 10268-1

Flexible PipeAdapts to soil movement

SINVACLITE™ HDPE Structured Wall Pipe

Content

• SINVAC Group Vision & Mission 3

• SINVAC Companies 4

• Introduction 5

• Dolomite Land in South Africa 6

• SINVACLITE™ Advantages 7

• SINVACLITE™ Manholes 8

• SINVACLITE™ Size Table 11

• Jointing Methods 12

• Technical Specification 16

• HDPE vs Concrete 17

• Flow Calculation 19

• Gallery 120

• Polymer Laboratory 21

• Accreditation 22

• Pressure Test 23

• Reference 24

• Pipelaying & Back Filling 25

• Handling, Loading & Transportation 28

• SINVAC Products & Services 29

To be the preferred one-stop supplier of HDPE pipes, fabricated plastic solutions, piping

projects and related products in Africa.

The SINVAC mission is to be the preferred supplier of HDPE piping systems and related

products in Africa. This competitive position is derived from its customer centricity, ability to

provide an all-inclusive solution from pipes to installed projects at a world class service level.

SINVAC is an OEM for most of its products and manufacture and supply its products in a

structured way with innovative, enthusiastic team players.

SINVAC GROUP VISION

SINVAC GROUP MISSION

SINVAC Plastics

SINVAC Plastics is the most experienced

roto moulder in South Africa and was

established in 1962. We supply a wide

range of high quality plastic roto

moulded items and accessories.

SINVAC Mining & Engineering

SINVAC Mining & Engineering was

established end 2007 to operate from the

manufacturing platform created by SINVAC

Piping, SINVAC Plastics and Johannesburg

Foundry.

SINVAC Piping

SINVAC Piping manufacturers SINVACLITE

and SABS HDPE pressure pipe under

SANS accreditation and supply brackets,

stubs, bends, tee’s, flanges and fittings to

a wide variety of industries.

SINVAC Development Trust

More than just the corporate social

investment activities of the SINVAC

Investments (Pty) Ltd group. Giving back

and serving within the range of The

SINVAC Group’s product and service

solutions.

SINVAC COMPANIES

Introduction

5

SINVACLITE™ represents the latest

advancements in material and

manufacturing technology. Raw material

properties and product technology have

been combined to provide a light-weight

engineered pipe for various gravity and

non-pressure applications in the

municipal, industrial, road construction,

rehabilitation and marine pipeline

applications.

HDPE Structured Wall Pipe is now the

front runner in replacing traditional pipe

system materials like concrete, CMP

(corrugated metal pipe) and PVC

(polyvinylchloride).

SINVACLITE™ is manufactured through a

specially designed profile extrusion

process where a square or rectangular

profile is extruded and spirally wound

onto a mandrel. The overlap on the edge

of the extruded profile is fused

homogenously together whilst still in the

hot plastic state to create a smooth

internal surface.

This results in a light-weight HDPE

Structured Wall Pipe which has all the

advantages of a normal solid-wall HDPE

pipe but with added benefits of being

light-weight, easy to transport and install,

which then makes it an obvious choice for

gravity and non-pressure applications.

HDPE Structured Wall Pipe is normally

defined by the inside diameter and the

ring stiffness for the desired application.

With pipe ID range from 300mm to

1200mm and ring stiffness of 4kN/m² or

8kN/m².


Structured Wall Profile

Dolomite Land in South Africa

6


Northern Cape, Limpopo, Mpumalanga, North West and approximately 25% of Gauteng

is underlain by Dolomite rock that become water soluble over time. HDPE Pipes, Fittings and

Manholes are the recommended materials to be used in these areas.

SINVAC manufactures and installs SINVACLITE HDPE Structured Wall Pipe and Manholes for

systems with no mechanical joints and use Hot Gas Extrusion Welding (i/a with SANS 10268-1)

technique to join pipes on site. This method ensure leak free pipe systems suitable for dolomite

areas. HDPE is also very Flexible, Robust and Resistant to most aggressive elements, thus

adapts and withstand soil movement issues in dolomite areas.

SINVAC has extensive experience in pipelines designed and can assist with Manhole designs,

custom fittings and installation of pipe systems. Our Manholes are manufactured using 100%

HDPE material and welded by qualified HDPE welders. HDPE systems are also referred to as

“joint-less” systems, thus guaranteeing no leaks, and perfectly suitable for dolomite areas.

Applications

Storm Water Management

Sewerage Pipelines

Manholes

Drainage Pipelines

Culverts

Floats

In-house fabrication

of HDPE Manholes

SINVAC has the capacity to manufacture and supply

SINVACLITE™ with ID range 300mm to 1500mm and ring

stiffness of 4kN/m2 or 8kN/m2 at very competitive

prices. HDPE Structured Wall Pipe represents the latest

advancements in material and manufacturing technology. Raw

material properties and product technology have been

combined to provide a light-weight engineered pipe for various

gravity and low-pressure applications in the municipal,

industrial and road construction, rehabilitation and marine

pipeline applications.

Advantages of SINVACLITE™

• Typically weighs less than 10% of equivalent

concrete pipe.

• HDPE has excellent chemical resistance to

most industrial and domestic wastes.

• HDPE is five times more abrasion resistant

than concrete.

• HDPE has a lifespan of up to 100 years.

7

SINVACLITE™ HDPE Structured Wall PipeSINVAC manufactures SINVACLITE™ Pipe from

300mm to 1500mm both in 4kN/m2 and 8kN/m2

SINVACLITE™ Manholes

8

SINVAC offers custom fabricated HDPE Manholes for a variety of applications. Manufactured

from a combination of high-quality Solid-wall and SINVACLITE™ pipe. SINVACLITE™ Manholes

are resistant to root ingress, preventing contamination to surrounding groundwater and

providing a watertight structure that delivers an extended life expectancy, making them suited

for sewer and stormwater applications. SINVAC manufactures SINVACLITE™ Manholes from

300mm to 1500mm ID both in 4kN/m2 and 8kN/m2.

SINVACLITE™ Manholes are prefabricated , which eliminates the risk of deformation in the

structure. The shaft configuration of the manhole can also be adapted to accommodate many

applications and an HDPE ladder can be fabricated for the inside of the Manhole.


9


SINVAC manufactures SINVACLITE™ Manholes from

300mm to 1500mm ID both in 4kN/m2 and 8kN/m2

SINVACLITE™ Manhole 1500mm ID & 6m High

10


SINVAC manufactures SINVACLITE™ Manholes from

300mm to 1500mm ID both in 4kN/m2 and 8kN/m2

SINVACLITE™ Manhole Benching & Ladder

Bottom view of Benching

Inside view of Benching & Ladder

SINVACLITE™ Size Table

11


SINVAC manufactures SINVACLITE™ Pipe from


SINVACLITE™ Coupling and Seal Method

Jointing Methods

12

The SINVACLITE™ Coupling and Seal joint can be delivered as sand tight and water tight with

the rubber seal. The rubber seal conforms to international standards and is resistant to

normal storm and sewerage waters.

Jointing must always be carried out in accordance with sound civil practice.

However, in the absence of installation instructions, the following is recommended:

• Align the two pipes vertically and horizontally.

• Clean the pipe end, the coupling and the seal, removing any foreign matter, water, sand,

dirt, etc.

• Install the rubber seal and make sure the seal sits correctly in its location.

• Apply lubricant on the inside of the coupling end only.

• Carefully align the coupling and seal end with each other, then push to the required

insertion depth.

• If a lever is used on the pipe to push the joint, insert a block of wood between the lever

and the end of the pipe to prevent damage to the pipe.




SINVACLITE™ Coupling and Seal Method (500mm ID)

13




Extrusion Weld Method

Jointing Methods

14

Approved for Dolomite Land

• Hot Gas Extrusion Welded Joints, are

100% leak proof.

• HDPE systems are also referred to as

“Jointless Systems”, thus guaranteeing

no leaks.

• Perfectly suitable for Dolomite Land.

• The machine self feed the filler

material and is used for various HDPE

joining applications and fabrication.




Approved

Hot Gas Extrusion

Welded Joints In accordance with

SANS 10268-1

HDPE Sleeve Jointing Method

Clamp Jointing Method

Jointing Methods

15

SINVAC manufactures the HDPE

Sleeve in-house. We then

extrusion weld the one end onto

the first Structured Wall Pipe.

The second pipe is then inserted

into the HDPE Sleeve on-site and

is also extrusion welded to form

a watertight joint.

The Clamp Joint Method is

designed for jointing pipes in

stormwater and other types of

non-pressure application, repair

of existing pipelines and

maintenance of pipelines. Used

as a joint for plain ended pipes.




Technical Specification

*Technical Specifications of HDPE Raw Materials

(Manufactured in accordance with SANS21138)

16




HDPE vs Concrete

17




HDPE vs Concrete

18




Flow Calculation

19

Hydraulic Design

SINVACLITE™ has a low friction coefficient, owing to HDPE having a

low friction coefficient.

Manning’s Roughness Coefficient value of n=0.01 is used for pipes

with full flow as per below graph.




163 Lloyd Street , P O Box 19294, Pretor ia Industr ia l , Pretor ia West , 0117

E: [email protected] .za or [email protected] .za W: www.sinvacpiping .co .za or

www.sinvacmining.co .za

T : +27(0) 12 386 6484

Gallery

20




SINVAC has its own in-house

Polymer LaboratorySINVAC has a World-class Quality Control System in

place to produce great quality HDPE products!

Quality has been the main driving

force for SINVAC to upgrade and

expand the SINVAC Polymer

Laboratory. We invested in

brand new, state-of-the-art

testing equipment, compliant

with the latest international

standards to test conformance

to SANS 4427 and SANS 21138

for HDPE raw material and final

product. Laboratory testing is

done by qualified laboratory

personnel with calibrated

equipment to produce certified

and accurate results. SINVAC’s

Polymer Laboratory takes the

standard of in-house testing in

the SA pipe manufacturing

industry to the next level!

CASE STUDY

……………………………............

Project

Sinvac Polymer

Laboratory

……………………………………..

Client

All Existing & Potential

Sinvac Customers

……………………………………..

Products

HDPE Raw Material,

HDPE Solid &

Structured Wall Pipe

and Final Product

……………………………………..

Testing Equipment

• Melt Flow Index

• Thermal Stability

• Carbon Black Content

& Dispersion

• Tensile Analysis

• Pressure Testing




T : +27(0) 12 386 6484

Accreditation

22


Pressure Test

Reason: SINVACLITE™ is used for non-pressure application. Pressure Test

conducted as experiment.

• A pressure test was conducted on the 4kN/m2 SINVACLITE™, with Inner

Diameter of 560mm.

• The Cylinder, as per Figure 1.1, was filled with water. Additional water

was pumped in with a water pressure pump, until required pressure was

reached.

• The result obtained in the experiment, is that the Extrusion Weld and

Structured Wall Pipe can handle at least 1.5 bar pressure, as per

Figure 1.2, without leaking.

Extrusion Weld↑

Cylinder Figure 1.1

Gauge Figure 1.2

23

Outside View

Inside View







T : +27(0) 12 386 6484

Reference

Renico Earthworks & Civils

Mams Mall Mamelodi

The scope of work for the project

included the following:

• Manufacturing, supply and

installation of 2km of HDPE

Structured Wall Pipes.

• Leak testing of the Piping System.

The project delivery period was 6

weeks.

24




Pipelaying & Back Filling

25*We hereby acknowledge the reference to SAPPMA Technical Manual 5th Edition of September 2017 Pg.147








Handling, Loading & Transportation

28


Handling

Smaller and lighter size pipes can

be handled by hand.

Larger size pipes should be

handled by machinery.

Lifting

When machinery is used to load

and offload the larger size pipes,

a lifting strap should be used

and not a cable or chain.

Nesting

When transporting nested pipes,

the smaller pipes should be

offloaded first and piled separately.

Loading

Lifting points should be evenly

spaced and well spread. Never drop

the pipes or manholes.

Transportation

When pipes of different sizes are

transported, the heaviest lengths

should be loaded first.

29

30

This SINVACLITE™ Brochure has been produced as a guide for engineers, purchasing

officers and contractors to cover the application and use of our pipes and fittings.

SINVAC (Pty) Ltd guarantees its products quality under its general conditions of sale.

SINVACLITE™Sales Enquiries: Please contact your Key Account Executive

Technical Enquiries: Please contact Eksteen Roux on 082 622 9928

Tel: +27 (0) 12 386 6484

Fax: +27 (0) 12 386 9484

[email protected]

www.sinvac.co.za

Head Office

163 Lloyd Street

Pretoria Industrial

Pretoria West

South Africa

Sales Factory

132 Bessemer Road

Pretoria Industrial

Pretoria West

South Africa

mailto:[email protected]

Documents

HDPE Structured Wall Sewer / Stormwater Pipe & Manholes...2020/06/08 · hot plastic state to create a smooth internal surface. This results in a light-weight HDPE Structured Wall