A PROPOSAL ON THE SUBJECT OF PRIVATE STANDARDIZATION

THE SUBJECT OF PRIVATE STANDARD DEVELOPMENT

Date of proposal: Secretariat of Organization

TCs WGsAuthor of proposal:

THE PROPOSAL

Title of proposal:"Dimensions of special product of vehicular area manhole cover, of round opening, of cast iron construction, size DN.670mm or 26.50in (D.670/675), and 360 or 400 kN loading class."Material: - ductile iron - of grade to fit the loading class in compliance with thicknesses of pieces.

The document proposal comes to settle up a dimensional based private standard document (as case, a publication / deliverable) concerning the dimensions of special product of a street manhole cover - which may be in concordance with requirements of one or more regional basic standard(s) of cast/ductile iron manhole covers, - e.g. the regional CEN standard "EN124 - Gully tops and manhole tops for vehicular and pedestrian areas. Design requirements, type testing, marking, quality control", - or, with other basic standard concerning street, or residential area, manhole covers - as long as the basic standard (e.g. as the EN124 is) does not apply for dimensions of special products of manhole covers.

As conclusion, the proposed private standard document (norm) aims to specify the main dimensions for a special product of a ductile iron vehicular area manhole cover of a DN.670mm / 26.50in, of round opening; - and must, as case may be, completed with other standards which refers to testing, marking, quality control. (e.g. the EN124 CEN standard).

Short description of design related to product and main dimensions:

> Round (circular) frame with round opening;

- overall dia. of lid piece: 670mm (26.375in),

- top opening of frame: dia. 675 (26.5625in), - round,

- top dia. of frame: 710mm, (~28in), - round

- lower opening of base of frame (over the flange) - dia. 795 (~31.25in),

to fit a 800mm dia. of manhole top opening (entry).

- clearance (clear opening) of frame, - about 605mm (~23.75in),

- 4 vent/key holes of about 40sq.cm. (~6.20sq.in) at all clear opening;

which also allows an easy opening using common tools,

- optional, on designs of lid and frame - a hinge or locking system may be added.

The product which the subject of standardization consists in, may be useful for outdoor networks - water supply, as well sewerage chambers or storm water, - in vehicular areas.

The type of public standard document, as we consider the proposal may later transform into:

> concerning the terminology of EN45020:2006 description: - prestandard (3.3), product standard (5.4), technical specification (3.4), unilaterally aligned standard (6.8), - all of these, in order to complete with CEN standard EN124, which is a basic standard (5.1).

> concerning the terminology of ISO/CEI-2:2004: - international standard (3.3), technical specification (3.4), technical report (3.5), publicly available specification (3.7).

LID PIECE of D.670/675 Front side plane view - anti-skid pattern detail- loading class: 360 ; 400 kN

; 675/680 ; 680/685

> draft for CEN standards

(rounded slots)

LID PIECE of D.670/675 ; 675/680 ; 680/685 Front side plane view - anti-skid pattern detail- loading class: 360 ; 400 kN (rounded slots)

> draft for CEN standards

0 0 9918 18

DN.670 Overall dia. O 670 DN.670 Overall dia. O 670

O 636 (25”) at base levelO 636 (25”) at base level

O 560 (22”)O 560 (22”)

O 484O 484

O 408 the sameO 408 the same

O 330 axe circle dia. (middle of slots)mO 330 axe circle dia. (mmiddle of slots)

O 254 (10”) at base levelO 254 (10”) at base level

O 152 (6”) at top, and 157 at base O 152 (6”) at top, and 157 at base

30 0 30 8

30 at o

8 3

8

t p

8 30

30 0 30 8

30 at o

8 3

8

t p

8 30

3030

Ddohc 205dohc 205

INSCRIP-TION RESER-

VED AREA

INSCRIP-TION RESER-

VED AREA

(1)(1)(1)(1)

(1)(1)

(1)(1)

(1)(1)

(2)(2)

(2)(2)

(1) - The surface which is at top of anti-skid trunks;

(2) - The surface on base of anti-skids, but also at top of lid plate (structure).

Holes are in number of 4 at 90 degree each to the sequent others, and have an clear opening (clearance) dia of 32, 35, or 38mm.

(1) - The surface which is at top of anti-skid trunks;

(2) - The surface on base of anti-skids, but also at top of lid plate (structure).

Holes are in number of 4 at 90 degree each to the sequent others, and have an clear opening (clearance) dia of 32, 35, or 38mm.

Trunks Trunks

SlotsSlots

DN 670 Overall dia. O 670 DN 670 Overall dia. O 670

O

O

O

O

O

O

O

LID Piece of DN.670 (rated dia.) Front side plane view - anti-skid pattern Loading class; - 360...400 kN

LID Piece of DN.670 (rated dia.) Front side plane view - anti-skid pattern Loading class; - 360...400 kN

O 650 - at base of trunksO 650 - at base of trunks

O 250 - at baseO 250 - at base

35/3835/38

38/4

138/4

1

32

/35

32

/35

ttop/basettop/base

Aanti-skidpatterntrunks

Aanti-skidpatterntrunks

O 152(154)/157

Ddohc 205Ddohc 205

t op

at

35

19 35

9 3

5 1

35

1

9

38 1

6

16

38

6 38

38

1

at

ba

e

s

A

A

t op

at

35

19 35

9 3

5 1

35

1

9

38 1

6

16

38

6 38

38

1

at

ba

e

s

MAR KINGRESERVED

A R E A

MAR KINGRESERVED

A R E A1515(1)(1)

(2)(2)

(1) - The surface which is at top of anti-skid trunks, - about 3...4 mm above (2);

(2) - The surface on base of anti-skids, but at top of lid plate (structure).

Holes are in number of 4 at 90 degree each to the sequent others, and have an clear opening (clearance) dia of 32, 35, or 38mm.

(1) - The surface which is at top of anti-skid trunks, - about 3...4 mm above (2);

(2) - The surface on base of anti-skids, but at top of lid plate (structure).

Holes are in number of 4 at 90 degree each to the sequent others, and have an clear opening (clearance) dia of 32, 35, or 38mm.

(1)(1)

(1)(1)

(1)(1)

(1)(1)

(1)(1)

(2)(2) (2)(2)

(1)(1)

Ant

-ski

dsi

(tr

ks

un

)

Ant

-ski

dsi

(tr

ks

un

)

5454

A1A1 A1A1

63 x 6 = 378in-between extreme ribs centres63 x 6 = 378in-between extreme ribs centres

DN.670 Overall dia. O 670DN.670 Overall dia. O 670

6363

LID Piece - DN.670 (D.670/675) Front side plane view. - - Anti-skid pattern details of solid (non-holes) lid> Loading class; - 360; 400 kN

LID Piece - DN.670 (D.670/675) Front side plane view. -

solid (non-holes) lid - Anti-skid pattern details of > Loading class; - 360; 400 kN

O 500O 500

1515

EV DR E S S E I TR E

N

O I T P I IR NC S

EV DR E S S E I TR E

N

O I T P I IR NC S1515

1515

(2)(2)

(2)(2)

(1)(1)

(1) - the surface which is at top of anti-skid ribs, and also at the top of lid,

(2) - the surface at base of ribs, but at top of lid plate (structure).

The top height of inscriptions is at top level of ribs, (1).

(1) - the surface which is at top of anti-skid ribs, and also at the top of lid,

(2) - the surface at base of ribs, but at top of lid plate (structure).

The top height of inscriptions is at top level of ribs, (1).

(1)(1)

(1)(1)

LID Piece of DN.670 (D.670/675) Backside plane view

- Loading class, - 360; 400 kN Structure with 3 circular, and 4 radial ribs, (similar of those with only 2 circular and 4 radial ribs) as well, with 4 vent holes, (and also, similar of solid lid, without holes, as well, with or without the middle rib)> ductile iron construction

LID Piece of DN.670 (D.670/675) Backside plane view

- Loading class, - 360; 400 kN Structure with 3 circular, and 4 radial ribs, (similar of those with only 2 circular and 4 radial ribs) as well, with 4 vent holes, (and also, similar of solid lid, without holes, as well, with or without the middle rib)> ductile iron construction

Outer rib(Laying surface)

Outer rib(Laying surface)

Reinf

orcing

ribs

Reinf

orcing

ribs

DN. 670 Overall dia. O 670 DN. 670 Overall dia. O 670

AA

AA

4545

135135

Holes borderreinforcementHoles borderreinforcement

O 140O 140

O 385 O 385

O 635O 635

Note! In case of lids having the structure with 2 circular and 4 radial reinforcing ribs, - only the inner as well the outer rib exists, while the middle one does not, but the 4 radial ribs exist in both of cases.

Holes, in number of 4, are at 90 degree each to sequent ones, and have a circular, ellipsoidal, or a long with rounded ends shape of clear opening.

The circular ones have a clearance dia of 32, 35, or 38 mm; The ellipsoidal holes have a clear opening of 42x30; 40x27, as well the rounded ends ones, have 40x27 or 38x25 mm opening

Note! In case of lids having the structure with 2 circular and 4 radial reinforcing ribs, - only the inner as well the outer rib exists, while the middle one does not, but the 4 radial ribs exist in both of cases.

Holes, in number of 4, are at 90 degree each to sequent ones, and have a circular, ellipsoidal, or a long with rounded ends shape of clear opening.

The circular ones have a clearance dia of 32, 35, or 38 mm; The ellipsoidal holes have a clear opening of 42x30; 40x27, as well the rounded ends ones, have 40x27 or 38x25 mm opening

Middle rib(optional)Middle rib(optional)

Innerrib

Innerrib

LID Piece - DN.670 (D.670/675) Vertical median partial section A - A

> ductile iron construction

- Loading class: - 360; 400 kN

LID Piece - DN.670 (D.670/675) Vertical median partial section A - A

> ductile iron construction

- Loading class: - 360; 400 kN

DN. 670 Overall dia. O 670 DN. 670 Overall dia. O 670

5

2

5

2

7

0

7

0

90

90

11; 12,511; 12,5

O 140 O 140 O 385 O 385 O 635 O 635

16 16

11; 12,5(7/16”; ½”)

11; 12,5(7/16”; ½”)

Circularreinforcingouter rib

Circularreinforcingouter rib

Radialreinforcing

rib

Radialreinforcing

rib

Circularreinforcingmiddle rib

Circularreinforcingmiddle rib

dohc (distance in-between opposite holes centres)D Ddohc (distance in-between opposite holes centres)

R 3

R 3

R

R

R8

R8

8R 8R

(1)(1) (2)(2)

(1) - the level of top of anti-skid trunks

(2) - the level which is at base of anti-skid trunks (pattern), but at top of lid plate (structure)

(3) - the top level of spurs (only if exists)

(4) - the depth of inscription (applies only for the lids with circular holes)

(1) - the level of top of anti-skid trunks

(2) - the level which is at base of anti-skid trunks (pattern), but at top of lid plate (structure)

(3) - the top level of spurs (only if exists)

(4) - the depth of inscription (applies only for the lids with circular holes)

81

81

1,5x

45

1,5x

45

11

>

:2

11

>

:2

1>

:1

0 1

>

:10

11

>

:2

11

>

:2

88

Radialreinforcing

rib

Radialreinforcing

ribCircular

reinforcinginner rib

Circularreinforcinginner rib

R2 R2

LayingsurfaceLayingsurface

66

33

R 3

R 3

R 1

0R 1

0

88 88

(4)(4)

22

O

1

8 d

ep

th

f h

ole

bd

er

oo

r 1

8 d

ep

th

f h

ole

bd

er

oo

r

3...4

3...4

(3)(3)

5.

1,

..2

5.

1,

..2

DN.670 Overall dia. O 670 DN.670 Overall dia. O 670

Grated-Lid Piece DN.670 (D.670/675) Front side plane viewGrated-Lid Piece DN.670 (D.670/675) Front side plane view

OO O

Loading class, - 360; 400 kNLoading class, - 360; 400 kN

Fictive dia of holed area - about ~ O 605Fictive dia of holed area - about ~ O 605

12,5 == 38 2512,5 == 38 25

A A A A

Reinforcing ribs - on backside

Reinforcing ribs - on backside

FRAME Piece - DN.670 (D.670/675) Top plane view

- ductile iron construction

> Loading class, - 360; 400 kN

FRAME Piece - DN.670 (D.670/675) Top plane view

- ductile iron construction

> Loading class, - 360; 400 kN

Top opening dia. O 675 (DN. 675)(top inner dia.)Top opening dia. O 675 (DN. 675)(top inner dia.)

17,517,5

AA

Overall dia. O 925Overall dia. O 925

Top outer dia. O 710Top outer dia. O 710

8-10 at end8-10 at end

Reinforcingribs

Reinforcingribs

Ce

cea

5

l aran di .

O

60

l a n

g)

(ce

r opein

Ce

cea

5

l aran di .

O

60

l a n

g)

(ce

r opein

AA

Laying surface(not shown

in A-A section)

Laying surface(not shown

in A-A section)

FRAME Piece - DN.670 - (D.670/675) Vertical section A-A

> ductile iron structure

- Loading class: - 360; 400 kN

FRAME Piece - DN.670 - (D.670/675) Vertical section A-A

> ductile iron structure

- Loading class: - 360; 400 kN