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OKA Goncrete Jacking Pipes

Range : Diameter 300 - 4800 mm

Applications : Sewerage, drainage, culverts, ducts,tunneling, water pipes \

Pipe Strength Class : X,Y,Z ; L, M, H

Specially designed and manufactured pipes to suit individualrequirements : Extra strength classes (ZH Plus), internalhigh alumina cement mortar l ining, internal PVC / HDPElining, sacrificial lining, concrete with PFA, surface protectivecoatings and other special requirements.

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i',s*lOKA offers a comprehensive range of precast reinforcedconcrete jacking pipes suitable for installation with moderngeneration of jacking techniques and systems.

Standard pipes are manufactured with well proven butt endjoint with cast-in steel collar and flexible natural rubberseal.

Pipes are manufactured either using spinning or verticalwet-cast process under controlled factory environment withstringent ISO 9001*1000 quality management system.

OKA is approved Supplier for sewerage products for SURUHANJAYA PERKIDMATAN AIR NEGARA / SPAN (previously JPP).List of approved products : PREGAST RG FLEXIBIE J0INT PIPES - JACKING AND SPIG0T & SOCKET J0lilT ( with either High Alumina Cement Lining,

38mm Sacrificial Lining, PVC Lining, HDPE Lining or PFA Cement (Mascrete) without Lining ) ; and PREGAST MANH0LE COMP0NENTS.In view of continual improvement OKA reserves the right to alter the Specifications / dimensions without prior notice.

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IYPICAL JACKI t\lc ARRANGEMENTGround Surface

INTERMEDIATEJACKING STATION

IF _ _ _ r - - - - l' 9teel Collar ,

Pipe Jacking Direction--

SteelCollart-l

SteelCollar

SteelCollar-

TYPE 1 HydraulicJacks

STANDARD PIPE(IYPE 1 )

INTERJACK LEAD PIPE(TYPE 2)

INTERJACK TAIL PIPE(TYPE 3)

Long Spigot Std. Collar-.{*----------{ H

LAST PIPE WITHOUT COLLAR(TYPE 4)

Std. Spigot (Without Collar)Std. Spigot Std. Collar Std. Spigot Long Collar

TVDE 1 ryPE 3 TYPE 4

Interjack Lead Pipe - The Long Collar isol'Detach Collai type.'Cast-in Colla/

type can be produced on requesl

SIANDARD JOINT DETAIL The butt ends joint design enables the jacking forces to be transmittedover the maximum concrete area of the pipe hence reducing possibil i tyof damage due to jacking loads. A compressible packing must be usedto ensure even distribution of the jacking loads.

The cast-in mild steel collar ensures no lateral displacement of thepipe jo int dur ing jack ing. Sta in less steel co l lar can be suppl ied onrequest.

The natural rubber seal is designed to fit into a preformed rebate at thespigot end of the pipe ensuring a watertight joint.

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OKA is approved Supplier for sewerage products for SURUHANJAYA PERKIDMATAN AIR NEGARA / SPAN (previously JPP).L is to f approvedproduc ts :PRECAST RCFLEXIBLEJ0INTPIPES-JACKINGANDSPIGOT&S0CKETJ0INT(wi the i therH ighAluminaCementL in ing ,

38mm Sacrificial Lining, PVC Lining, HDPE Lining or PFA Cement (Mascrete) without Lining ) ; and PRECAST MANHOLE COMP0NENTS'

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OKA Concrete Jacking Pipes

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OKA CONC,RETE INDUSTRIES SDN. BHD. 1ozot4-M)\

Head Office : N0.6, Lebuhraya Chateau, Off Persiaran Kampar,30250 lpoh, Perak, Malaysia.

Tel:05-254 2741,05-2542745,05-2542746,05-257 2748,2425211,2425212,2542218,2531734Fax : 05-253 2403. 05-241 1851

E-mail : oka-conc@tm. net. my Homepage : http://rirnrrrw. oka.tom.my

!Ii. is approved Supplier for sewerage products for SURUHANJAYA PERKIDMATAN AIR NEGARA / SPAN (previously JPP).List of appr;red products : PRECAST RC FLEXIBLE JOINT PIPES - JACKIIIG AND SPIGOT & S0CKET JOINT ( with either High Alumina Cement Lining,

38mm Sacrificial Lining, PVC Lining, HDPE Lining or PFA Cement (Mascrete) without Lining ) ; and PREGAST MAI{H0LE COMP0i|EI{TS.