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167634-M) Cenifed to MS lS0 9001:2008 Cerlliied lo [4S lS0 9001:2008 Certlied lo [,{S lS0 9001 2008
Cen No AR 1579 Cert. No AR 1579 Ced No. r AR 1579

OI(A PRECAST CONCRETE PIPE

OKA as one of the leading manufacturer of precast concrete pipes, provide an extensive range of spinning spun pipes
from nominal diameter 300mm to 1800mm

OKA precast concrete pipes are available with rebated/ogee joint and spigot & socket with rubber ring joint. All pipes
are manufactured in accordance to Malaysia Standard MS881- : Part 1 & Part 3 : 1991 and 855911 :1988 under
controlled factory environment with stringent ISO 9001":2008 quality management system.

Rebate/Ogee Joint Pipes Spigot & Socket With Rubber Ring Joint Pipes

APPTICATIONS
r Drainage & Stormwater Culvert
o Sewerage Culvert

ADVANTAGES
o Fast lnstallation
Pipe with rebated/ogee joint can be easily installed without sophisticated jacking equipment. This kind of
rigid joint method is conveniently installed in properly layered hard and flat ground condition.
o Flexibility
Pipes with spigot & socket with rubber ring joint can offer flexibility in certain degree of turning radius while
rnaintaining the robustness of the pipe. A certain level of deflection due to soil settlement can be
accomodated by this kind of flexible joint method.
o Durability
Pipes with protective layer such as high alumina cement (HAC) lining or sacrificial concrete lining provide
resistance to continuous exposure to hydrogen sulphide and wide variety of chemical corrosion attacks.
o Quality Assurance
Precast pipes are manufactured under controlled factory environment with stringent ISO 9001:2008 quality
management system.
. Superior Strength
Pipes manufactured with centrifugally spun process can achieve an equivalent high compaction due to
coupling effect of vibration and centrifugal force.

OKA is approved Supplier for sewerage products for SURUHANJAYA PERKIDMATAN AIR NEGARA / SPAN ( previously JPP,).
List of approved products : PRECAST REINFORCED CONCRETE PIPES WITH OGEE JOTNTS &
CONCRETE PIPES WITH FLEXIBLE JOINTS FOR DRAINAGE AND SEWERAGE AND PRECAST CONCRETE MANHOLES (HEAVY DUTY)

ln view of continual improvement OKA reserves the right to alter the Specifications/ dimensions without prior notice.

MAC,
ocT. 16
1,1
OKA SPIGOT & SOCKET WITH RUBBER RING JOINT PIPES (Comforms To MS 881:Part 1:1991)
Effective Overall Standard Class X/L, Y/M & Z/H Class Z Plus/H Plus**
Nominal
Length, Length, Approx. Approx.
Diameter
E L A∅ B∅ C∅ Weight A∅ B∅ C∅ Weight
(mm) (in) (mm) (mm) (mm) (mm) (mm) (mt) (mm) (mm) (mm) (mt)
300 (12) 3050 3120 300 370 440 0.28 300 445 535 0.67
375 (15) 3060 3138 375 445 535 0.38 375 530 628 0.86
450 (18) 3060 3138 450 530 628 0.52 450 615 706 1.08
525 (21) 3060 3138 525 615 706 0.68 525 700 805 1.32
600 (24) 3060 3155 600 700 805 0.87 600 775 880 1.48
675 (27) 3065 3155 675 775 880 0.98 675 860 995 1.75
750 (30) 3065 3155 750 860 995 1.20 750 1030 1151 3.07
900 (36) 3065 3190 900 1030 1151 1.73 900 1200 1342 3.88
1050 (42) 3048 3180 1050 1200 1342 2.33 1050 1370 1501 4.77
1200 (48) 3040 3180 1200 1370 1501 3.03 1200 1540 1694 5.74
1350 (54) 3040 3180 1350 1540 1694 3.81 1350 1710 1854 6.78
1500 (60) 3040 3180 1500 1710 1854 4.74 1500 1880 2060 7.91
1650 (66) 3040 3180 1650 1880 2060 5.75 1650 2050 2260 8.50
1800 (72) 3030 3180 1800 2050 2260 6.85 *1800 2220 2220 8.15

Notes:

AΦ : Barrel Internal Diameter

BΦ : Barrel External Diameter

CΦ : Socket External Diameter

OKA SPIGOT & SOCKET WITH RUBBER RING JOINT PIPES c/w 12mm HAC LINING(Comforms To MS 881:Part 1:1991)
Effective Overall Standard Class X/L, Y/M & Z/H Class Z Plus/H Plus**
Nominal
Length, Length, Approx. Approx.
Diameter
E L A∅ B∅ C∅ Weight A∅ B∅ C∅ Weight
(mm) (in) (mm) (mm) (mm) (mm) (mm) (mt) (mm) (mm) (mm) (mt)
375 (15) 3060 3138 350 445 535 0.39 375 530 628 0.87
450 (18) 3060 3138 425 530 628 0.53 450 615 706 1.09
525 (21) 3060 3138 500 615 706 0.70 525 700 805 1.34
600 (24) 3060 3155 575 700 805 0.89 600 775 880 1.50
675 (27) 3065 3155 650 775 880 1.00 675 860 995 1.77
750 (30) 3065 3155 725 860 995 1.22 750 1030 1151 3.09
900 (36) 3065 3190 875 1030 1151 1.76 900 1200 1342 3.91
1050 (42) 3048 3180 1025 1200 1342 2.36 1050 1370 1501 4.80
1200 (48) 3040 3180 1175 1370 1501 3.07 1200 1540 1694 5.78
1350 (54) 3040 3180 1325 1540 1694 3.85 1350 1710 1854 6.82
1500 (60) 3040 3180 1475 1710 1854 4.79 1500 1880 2060 7.96
1650 (66) 3040 3180 1625 1880 2060 5.80 1650 2050 2260 8.55
1800 (72) 3030 3180 1775 2050 2260 6.91

In view of continual improvement OKA reserves the right to alter the Specifications/ dimensions without prior notice.
APRIL, 18
OKA REBATED/OGEE JOINT PIPES (Comforms To MS 881:Part 3:1991)
Standard Class X/L, Y/M & Z/H Class Z Plus/H Plus**
Nominal
Nominal Diameter Wall Approx. Wall Approx.
Length, L ID OD ID OD
Thickness Weight Thickness Weight
(mm) (in) (mm) (mm) (mm) (mm) (mt) (mm) (mm) (mm) (mt)
300 (12) 1520 300 370 35 0.13 300 445 72.5 0.32
375 (15) 1520 375 445 35 0.18 375 530 77.5 0.41
450 (18) 1520 450 530 40 0.24 450 615 82.5 0.51
525 (21) 1520 525 615 45 0.32 525 700 87.5 0.63
600 (24) 1520 600 700 50 0.40 600 775 87.5 0.70
675 (27) 1520 675 775 50 0.45 675 860 92.5 0.83
750 (30) 1520 750 860 55 0.55 750 1030 140 1.46
900 (36) 1520 900 1030 65 0.78 900 1200 150 1.84
1050 (42) 1520 1050 1200 75 1.05 1050 1370 160 2.26
1200 (48) 1520 1200 1370 85 1.35 1200 1540 170 2.72
1350 (54) 1520 1350 1540 95 1.70 1350 1710 180 3.22
1500 (60) 1520 1500 1710 105 2.08 1500 1880 190 3.76
1650 (66) 1520 1650 1880 115 2.51 1650 2050 200 4.04
1800 (72) 1520 1800 2050 125 2.98 *1800 2220 210 8.15

Notes :
Class X, Y, Z and Z Plus conforms to AS/NZS 4058:2007
Class L, M, H and H Plus conforms to MS 881:1991
* For Pipe nominal diameter 1800mm (Class Z Plus), the nominal length shall be 2500mm.
** Class Z Plus / H Plus denotes 1.5Z/1.5H, 2Z/2H, 2.5Z/2.5H, 3Z/3H & etc available for selection

Pipe with sacrificial concrete lining, PVC Lining or HDPE lining can be manufactured upon request.
Pipes with higher or specified strength can also be manufactured by OKA (Non standard products).

Rubber Ring
JOINTS DETAIL
Rubber Ring

(For Standard Size (For Large Diameter

Pipe ∅300 - ∅1800) Pipe > ∅1800)

Spigot & Socket Rubber Ring Joint Rebated Rubber Ring Joint

(For Pipe Size >∅1200) (For Standard Size

Pipe ∅300 - ∅1200)

Cement Mortar Cement Mortar

Rebated Joint (Internal Flush) Rebated Joint (External Flush)

In view of continual improvement OKA reserves the right to alter the Specifications/ dimensions without prior notice.
APRIL, 18
OKA PRECAST CONCRETE PIPE
SPEC!FtCAilON

. Allconcrete pipes are to installwith correct load line facing eithertop or bottom point of the pipe
circumference. The load line can be identified by marking on the internal barrelsurface of the pipe.

o Mimimum cover to concrete pipe cuivert is recommended to be 600mm to avoid undesirable point load
action. Where the minimum cover cannot be achieved, the concrete pipe shall be surrounded in concrete.

o it vital importance for the contractor/installer to have thorough understanding of the

is of
specifications/requirements on designed method installation, designed bedding facto; materials and
workmanship in order to ensure satisfactory performance of any instalied pipe culverts.

PIPE CTASS SETECTION

The suitable pipe class shall be selected and the site construction/installation technique shall be adhered to the
authority/consultant's design criteria and requirements.

Pipe class selection is subjected to the following factors :

r Pipe installation conditions either in trench or under embankment.

o Depth of fill above the pipe culvert and type of fill materials.

. Type of bedding as constructed at project site.

o Superimposed load conditions

OKA CONCRETE INDUSTRIES SDN" BHD..u,u,o-,,

SUDSIDIARY OF OKA CORPORATION BERHAD (s1ee41.H)
Head Office : No.6, Lebuhraya Chateau, Off Persiaran Kampar, 30250 lpoh, Perak

Tel : 05-2542741.,05-2542745,05-2542745, 05-2542748, 05-254221,8,05-253 7734, 05-242521,1,, 05-2425212

Fax :05 -2532403,05-241. 1851 E-mail : oka@oka.com.my Homepage : http://www.oka.com.my

Perak Johor
8km, OffJalan Gopeng/ Batu Gajah,31300 Kampung Kepayang, lpoh, Perak Lot 548, Mukim Senai, Jalan Seelong,81400 Senai,Johor.
Tel : 05 - 256 3408 Tel : 07 - 551 1008 Fax : 07 - 551 1011

lJeecrlSeoElal Pahang
PT2500, Batu 2%, Jalan Pajam-Batang Benar, 71800 Nilai, Negeri Sembilan. \ot29L7, Batu 3, Lebuhraya Tun Abdul Razak, 26300 Gambang, Pahang
Tel : 06 - 799 9287 Fax I 06 - 799 ZLL8 Tel : 09 - 546 1371 Fax : 09 - 545 1550

Kedah Kuala Lumpul

H.S.(D) 72875 NO.PT 583, Pekan Bukit Selambau, Daerah Kuala Muda, Kedah No :48, Jalan 8/149K, Bandar Baru Seri Petaling, 57000 Kuala Lumpur.
Tel : 04 - 419 1523 Fax : 04 - 419 1523 Tel : 016 - 550 0089 Fax : 03-90563532

ln view of continual improvement OKA reserves the right to alter the Specifications/ dimensions without prior notice.

ocT. 16
MAC, l4