TECHNICAL SPECIFICATION FOR SANITARY FIXTURES
1.0 SCOPE OF WORK :
1.1
Work under this section shall
consist of furnishing all material and labour necessary and required to
completely install all sanitary fixtures, chromium plated fittings and
accessories as required by the drawings specified hereinafter and given in the
Schedule of Quantities.
1.2 Without restricting to the generality of the foregoing the sanitary fixtures & C.P. fittings shall include the following:
a)
Sanitary fixtures
b)
Chromium plated fittings
c)
Stainless steel sinks
d)
Accessories e.g toilet paper holders, coat
hook, dispenser etc.
e)
Mirror
1.3 Whether specifically mentioned or not all fixtures and appliances shall be provided with all fixing devices, nuts, bolts, screws, hangers as required.
1.4
All exposed pipes within
toilets and near fixtures shall be chromium plated brass or copper unless
otherwise specified.
2.0 GENERAL
REQUIREMENTS:
2.1
All
materials shall be new and of best quality confirming to specification and
subject to the approval of the Architect/Consultants. Wherever particular makes
are mentioned, the choice of selection shall remain with the Owner/Architect.
2.2
Sanitary
fixtures shall be of the best quality approved by the Owner/Architect. Wherever
particular makes are mentioned, the choice of selection shall remain with the
Owner/Architect.
2.3
All
Appliances, fixtures and fittings shall be provided with all such accessories
as are required to complete the item in working condition whether specifically
mentioned or not in the Schedule of Quantities, specifications, and drawings.
Accessories shall include proper fixing arrangement, brackets, nuts, bolts,
screws and required connection pieces.
2.4
Fixing
screws shall be half round head chromium plated brass screws with C.P. washers
where necessary.
2.5
Porcelain
sanitary ware shall be glazed vitreous china of first quality free from warps, cracks and glazing
defects confirming to I.S. 2556.
2.6
Sinks
for pantry or kitchen shall be stainless steel or as specified in the schedule
of quantities.
2.7
Chromium
plated fittings shall be cast brass chromium plated of the best quality
approved by the Owner/Architects.
2.8
All
Appliances, fittings and fixtures shall be fixed in a neat workmanlike manner
true to level and heights shown on the drawings and in accordance with the
manufacturers recommendations. Care shall be taken to fix all inlet and outlet
pipes at correct positions. Faulty locations shall be made good and any damage
to the finished floor, Filing Plaster, Paint, insulation or terrace shall be
made good by the Contractor at his own cost.
2.9
Sanitary
appliances, subject to the type of appliance and specific requirements, shall
be fixed in accordance with the relevant standards and the following :
a)
Contractor
shall, during the entire period of installation and afterwards protect the
appliances by providing suitable cover or any other protection so as to
absolutely prevent any damage to the appliances until handing over. (The
original protective wrapping shall be left in position for as long as
possible).
b)
The
appliance shall be fixed in a manner such that it will facilitate subsequent
removal if necessary.
c)
All
appliances shall be securely fixed. Manufacturers’ brackets and fixing methods
shall be used wherever possible. Compatible rust- proofed fixings shall be
used. Fixing shall be done in a manner that minimizes noise transmission.
d)
Pipe
connections shall be made with demountable unions. Pipe work shall not be fixed
in a manner that it supports or partially supports an appliance.
e)
Appliances shall be fixed so that water falls
to the outlet.
f)
Appliances
shall be fixed true to level firmly fixed to anchor or supports provided by the
manufacturer and additional anchors or supports where necessary.
2.10 Sizes of Sanitary
fixtures given in the Specifications or in the Schedule of Quantities are for
identification with reference to the catalogues of makes considered. Dimensions
of similar models of other makes may vary within + 10% and the same
shall be provided and no claim for extra payment shall be entertained nor shall
any payment be deducted on this account.
a)
WC
shall be single or double siphonic wash down type floor/ wall mounted set, as
shown in the drawings, flushed by means of a flushing cistern.
b)
Each
W.C. set shall be provided with a solid plastic seat of colour given in the
schedule of quantities, rubber buffers and chromium plated hinges. Plastic seat
shall be so fixed that it remains absolutely stationary in vertical position
without falling down on the W.C.
c)
Flush
pipe/bend shall be connected to the Water Closet by means of suitable rubber
adapter.
d)
Wall
hung Water Closet shall be supported by C.I. chair.
4.0 URINALS:
4.1
Urinals
shall be lipped type half stall white glazed vitreous china of best quality and
size as mentioned in the Schedule of Quantities.
4.2
Half
stall urinals shall be provided with 15 mm dia C.P. spreader, 32 mm dia C.P.
domical waste and C.P.As. brass bottle trap with pipe and wall flange and shall
be fixed to wall by C.I. brackets, C.I. wall clips and CP brass screws as
recommended by manufacturer complete as directed by Architect/Consultants.
4.3
4.4
Flush
pipes shall be GI pipes concealed in wall chase but with chromium plated bends
at inlet and outlet or as given in Schedule of Quantities. These shall be
measured and paid for separately.
4.5
GI
waste pipes shall be provided for urinals wash basin, sink.
5.0 URINAL
PARTITIONS:
5.1
Urinal
partitions shall be white glazed vitreous china of size specified in the
Schedule of Quantities.
5.2
Porcelain
partitions shall be fixed at proper heights with CP brass bolts, anchor
fasteners and MS clips as recommended by the manufacturer and directed by the
Architect/Consultants.
6.0
6.1
Wash
basins shall be coloured or white glazed vitreous china of best quality, size,
shape and type specified in the Schedule of Quantities.
6.2
Each
basin shall be provided with painted MS angle or CI brackets and clips and the
basin securely fixed to wall. Placing of basins over the brackets without
secure fixing shall not be accepted. The MS angle shall be provided with two
coats of red oxide primer and two coats of synthetic enamel paint of make,
brand and colour as approved by the Architect/Consultants.
6.3
Each
basin shall be provided with 32 mm dia
C.P. waste of standard pattern with pop-up waste or rubber plug and chain as
specified in the Schedule of Quantities, 32 mm dia C.P. brass bottle trap and
angle valve with C.P.pipe to wall and flange as given in the schedule of
quantities.
6.4
Each
basin shall be provided with single hole mixing fitting or as specified in the
Schedule of Quantities.
6.5
Basins
shall be fixed at proper heights as shown on drawings. If height is not
specified, the rim level shall be 80 cms or as directed by Architect/Consultants.
7.0 SINKS
:
7.1
Sinks
shall be white glazed fireclay or vitreous china or stainless steel or any
other material as specified in the Schedule of Quantities.
7.2
Each
sink shall be provided with M.S. or C.I. brackets and clips and securely fixed.
Counter top sinks shall be fixed with suitable painted angle iron brackets or
clips as recommended by the manufacturer. Each sink shall be provided with 40
mm dia C.P. waste with china and rubber plug with CP Brass chain as given in
the Schedule of Quantities. The MS Angle shall be provided with Two coats of
red oxide primer and two coats of synthetic enamel paint of make, brand and
colour as approved by the Architect/Consultants.
7.3
Each
sink shall be provided with hot and cold mixing fittings or CP taps as specified
in the schedule of quantities.
8.0 MIRRORS :
8.1 Mirrors shall be electro coated copper
5.5mm thick of approved make. The size shall be as specified in the Schedule of
Quantities or as shown on the drawings. The image shall be clear and without
waviness at all angles of vision.
8.2 Mirrors shall be provided with backing of
12mm thick marine plywood or 6mm thick cement asbestos sheet fixed with CP
brass semi round headed screws and cup washers or CP brass clamps as specified
or instructed by Architect/Consultants.
TOILET
PAPER HOLDER :
9.1 Toilet paper holder shall be of CP brass,
powder coated/S.S. heavy duty of approved make and colour or as specified in
Bill of Quantities.
10.0 HAND
DRIER :
10.1 The hand drier shall be
no touch operating type with solid state time delay to allow user to keep hand
in any position.
10.2 The hand drier shall be fully hygienic,
rated for continuous repeat use (CRU).
10.3 The rating of hand drier shall be such that
time required to dry a pair of hands up to wrists is approximately 30 seconds.
10.4 The hand drier shall be of
wall mounting type suitable for 230V, single phase, 50 Hz, AC power supply.
11.0 TOILETS FOR DISABLED(IF PROVIDED IN THE
DWGS):
11.1 Where specified in
washroom facilities designed to accommodate physically handicapped, accessories
should be provided as directed by the Project Manager.
11.2 Stainless steel grab bars
of required size suitable for concealed or exposed mounting and non-slip
gripping surface shall be provided in all washrooms to be used by physically
handicapped as directed by the Project Manager.
12.0 ACCESSORIES:
12.1 All C.P. bib taps and Angle valves shall be
quarter turn-type washerless fittings. The angle valve shall be provided with
stainless steel mesh filter.
12.2 Contractor shall install all chromium
plated stainless steel and powder coated accessories as shown on the drawings
or directed by Architect/Consultants and given in the Schedule of Quantities.
12.3 All
C.P. accessories shall be fixed with C.P. brass half round head screws and cut
washers in wall with rawl plugs or nylon sleeves and shall include cutting and
making good as required or directed by Architect/Consultants.
12.4 Joints/ gaps between all
sanitary appliances/fixtures and the floor/ walls shall be caulked with an
approved mildew resistant sealant, having anti-fungal properties, of colour and
shade to match that of the appliance/ fixture and the floor/ wall to the extent
possible.
13.0 TESTING:
All
appliances, fixtures and fittings shall be tested before and after
installation. Water seals of all appliances shall be tested. The Contractor
shall block the ends of waste and ventilation pipes and shall conduct an air
test with a pressure of 38mm water gauge for minimum of 3 minutes in accordance
with BS:5572.
14.0 MEASUREMENT
14.1 Sanitary fixtures shall
be measured by numbers.
14.2 Rate for providing and
fixing of sanitary fixtures, accessories shall include all items, and
operations stated in the respective specifications and Schedule of Quantities
and nothing extra is payable.
14.3 Rates for all items under
specifications paras above shall be inclusive of cutting holes and chases and
making good the same, C.P. brass screws, nuts, bolts and any fixing
arrangements required and recommended by manufacturers, testing and
commissioning etc. complete.
14.4 Mirrors shall be measured
on surface area basis in sqm/Nos.
B) SOIL, WASTE, VENT & RAIN WATER
PIPES:
1.0 SCOPE OF WORK :
1.1 Work under this section shall consist of
furnishing all labor, materials, equipment’s and appliances necessary and
required to completely install all soil, waste, vent, AHU drain, Rain water
pipes, drainage sump riser and fittings as required by the drawings and given
in the Schedule of Quantities.
1.2 Without restricting to the generality
of the foregoing, the soil, waste, vent pipe rain water system shall include
the following :-
a) Horizontal and Vertical C.I. soil, waste and vent pipes,
and fittings, Drip seal joint, clamps and connection to fixtures.
b)
Floor and Urinal traps, Floor
Drain, Cleanout plugs, G.I. inlet fittings and CP brass/stainless steel
grating.
c) Waste
pipe connection from all fixtures e.g wash basins, sinks, urinals, kitchen
equipments and plant room equipment.
d) uPVC/CI Rain water pipes/CI(LA)
Drainage/Sewage Sump Pmu Riser.
e) uPVC
sump vent pipe and fittings.
2.0 GENERAL:
2.1 All
materials shall be new of the best quality conforming to IS codes and
Specifications and subject to the approval
of Consultants.
2.2 Pipes
and fittings shall be fixed truly vertical, horizontal or in slopes as required
in a neat workman like manner.
2.3 Pipes
shall be fixed in a manner as to provided easy accessibility for repair and
maintenance and shall not cause
obstruction in shafts, passages etc.
2.4 Pipes shall be securely fixed to walls
and ceilings by suitable clamps at
intervals specified.
2.5 Access doors for fittings
and cleanouts shall be so located that they are easily accessible for repair
and maintenance.
2.6 All work shall be
executed as directed by the Engineer-in-charge.
3.0 CENTRIFUGAL CAST IRON (SPUN) PIPE :
3.1
Soil,
waste, vent and anti-siphonage pipes, fittings and accessories shall be
centrifugal cast iron (spun). All pipes shall be straight and smooth and their
inside free from irregular bore, blow holes, cracks and other manufacturing
defects. Pipes shall be centrifugally cast (spun) iron soil pipes conforming to
IS: 3989-1984.
3.2
Standard weight, dimensions and pig lead required for joints shall be
as follows:
For pipes conforming to IS:3989-1984 (centrifugally spun C.I pipes)
S.No. |
Nominal Diameter |
Thickness |
Approximate mass including mass
of Socket for pipe length1.80m |
Internal diameter of socket |
Depth of lead |
Weight Of lead yarn |
|
|
Mm |
mm |
Kg |
mm |
Mm |
Kg |
|
1 |
75 |
3.5 |
12.5 |
99 |
25 |
0.600 |
|
2 |
100 |
4.0 |
18.8 |
126 |
25 |
0.850 |
|
3 |
150 |
5.0 |
34.9 |
178 |
25 |
1.300 |
|
4 |
200 |
6.0 |
51.0 |
|
|
2.00 |
37.0 Tolerance:
Acceptable
tolerance for pipes to IS:3989 shall be as follows:
|
a) |
Wall thickness |
- 15% |
|
b) |
Length |
+20 mm |
|
c) |
Weight |
-10% |
4.0 FITTINGS
:
4.1
Fittings
shall conform to the same Indian Standard (IS : 3989-1984) for pipes.
Contractor shall use pipes and fittings of matching specifications.
4.2
Fittings
shall be of the required degree of curvature with or without access door as
detailed in the drawings or as directed.
4.3
Access door shall be made up with 3mm
thick insertion rubber washer and white lead. The bolts shall be lubricated
with grease or white lead for easy removal later. The fixing shall be air and
water tight.
5.0 FIXING:
5.1
MS
clamps truly vertical shall fix all vertical pipes. Branch pipes shall be
connected to the stack at the same angle as that of the fittings. No collars
shall be used on vertical stacks. Each stack shall be terminated at top with a
cowl (terminal guard).
5.2
Horizontal
pipes running along ceiling shall be fixed on structural adjustable clamps of
special design shown on the drawings or as directed. Horizontal pipes shall be
laid to uniform slope and the clamps adjusted to the proper levels so that the
pipes fully rest on them.
5.3
Contractor
shall provide all sleeves, openings, hangers, inserts during the construction.
He shall provide all necessary information to the building Contractor for
making such provisions in the structure as necessary. All damages shall be made
good by the Contractor at his own cost to restore the surfaces.
6.0 CLAMPS :
6.1
Holder
bat clamps shall be of standard design fabricated from MS flats 40x3mm thick
and 12mm dia MS rod and 6mm nuts and bolts; painted with two coats of black
bitumen paint before fixing. The clamps shall be fixed in cement concrete 1:2:4
mix (1 cement : 2 sand : 4 stone aggregate 20mm nominal size) blocks
100x100x100mm deep.
6.2
Where
holder bat clamps are to be fixed in RCC column or slotted angles, walls or
beam they shall be fixed with 40x3mm flat iron “U” type clamps with anchor
fasteners of approved design.
6.3
Structural
clamps shall be fabricated from MS structural members e.g. rods, angles,
channels, flats as per detailed drawing or as directed. Contractor shall
provide all nuts, bolts, welding material and paint the clamps with one coat of
red oxide and two or more coats of black enamel paint to give an even shade.
6.4
Wherever
MS clamps are required to be anchored directly to brick walls, concrete slabs,
beams or columns, nothing extra shall be payable for clamping arrangement, RCC
block and making good with cement concrete 1:2:4 mix (1 cement : 2 sand : 4
stone aggregate 20mm nominal size) as directed by the Architect/Consultants.
7.0 TRAPS :
7.1 Floor
Trap:
Floor trap shall be cast iron ‘P’ Trap with
or without vent horn (deep seal with an effective seal of 50 mm). In case of
Sunken slab in the Toilets, the trap and waste pipes shall be set in cement
concrete blocks of size 300mm x 300mm and of required depth, firmly supported
on the structural floor. The blocks shall be in 1 :2 :4 mix (1 cement : 2
coarse : 4 stone aggregate 20mm nominal size) and extended to 40mm below
finished floor level. Contractor shall provide all necessary shuttering and
centering for the blocks at no extra cost. ). In case of flat slab instead
sunken slab in the Toilets, Contractor shall provide all sleeves, openings,
hangers, inserts during the construction for fixing the floor traps and etc.
7.2
Urinal Trap:
Urinal traps shall be cast iron P or S traps with or without vent horn
and set in cement concrete block specified under Clause 7.1 Floor Trap without
extra charge.
7.3
Floor Trap Inlet/GI Inlet Fitting:
Traps and connections shall
ensure free and silent flow of discharging water. Where specified, Contractor
shall provide a special type cast iron or G.I. inlet hopper without or with one
or two or three inlet sockets to receive the waste pipe. Joint between G.I.
waste pipe and hopper inlet socket shall be Drip seal joint. Hopper shall be
connected to a CI ‘P’ or ‘S’ trap with at least 50mm seal (hopper and traps
shall be paid for separately). Floor trap inlet hoppers and the traps shall be
set in cement concrete blocks/and supports as specified under clause 7.1 Floor
trap above without extra charge.
8.0 CP/S.S. GRATING :
Floor
and Urinal Traps, Floor drain shall be provided with 80-125 mm square or round C.P./stainless steel grating with rim
of approved design and shape. Minimum thickness shall be 4 mm or as specified
in the Schedule of Quantities.
9.0 JOINTING :
Soil, waste, vent and anti-siphonage pipes shall be jointed with Lead
joint/Drip seal joint as mentioned in the BOQ.
The following
minimum procedures shall be complied with while making the pipe joints :-
Ensure that the pipes are clean
internally and undamaged.
a)
The
pipes shall be cut square with sharp tools.
b)
The
cut ends of the pipes shall be filed/ reamed and finished smooth.
c)
Any
deformed ends shall be re-rounded.
d)
It
shall be ensured that the pipe ends shall enter the fittings and sockets to
full depth of the jointing area.
e)
The
pipe work shall be assembled in a manner such that it does not entail making of
joints in restricted locations.
f)
Each
metal pipe spigot shall be centered with three lightly wedged pieces of
hardwood or folded lead.
g)
The
jointing surfaces shall be cleaned to remove any coatings or cutting oils, etc.
10.0 CI (LA) PIPE AND FITTING:
10.1 Sump
Pump discharge Pipe/Rain Water horizontal header/soil waste header running at
Basement ceiling/Rain Water Pipe running underground shall be centrifugally
cast [spun] iron pressure pipe {class LA] conforming to IS 1536:2001
10.2 Dimension,
Standard weight shall be as follows
|
Nominal Diameter DN mm |
Barial |
Socket Mass kg |
Total for one working
Length L in kg (Approved is Length) |
||||||
|
DE mm |
E mm |
Mass for 1 Meter kg |
3.66 m |
4 m |
4.5 m |
5 m |
5.5 m |
||
|
80 |
98 |
7.2 |
14.7 |
5.5 |
59 |
64 |
72 |
79 |
87 |
|
100 |
118 |
7.5 |
18.6 |
7.1 |
75 |
82 |
91 |
100 |
109 |
|
125 |
144 |
7.9 |
24.2 |
9.2 |
97.8 |
106 |
118 |
130 |
142 |
|
150 |
170 |
8.3 |
30.1 |
11.5 |
122 |
132 |
147 |
162 |
177 |
|
200 |
222 |
9.2 |
44.0 |
16.8 |
178 |
193 |
215 |
237 |
259 |
|
250 |
274 |
10 |
59.0 |
22.9 |
240 |
260 |
290 |
319 |
349 |
|
300 |
326 |
10.8 |
76.5 |
29.8 |
310 |
336 |
374 |
412 |
450 |
|
350 |
378 |
11.7 |
96.3 |
37.5 |
390 |
423 |
471 |
519 |
567 |
10.3 Fitting for CI (LA) Pipe
shall confirm to IS : 1538 – 1967 where possible junction from branch pipe shall be made by a
‘Y’ Tee.
11.0 CLEAN OUT PLUGS :
11.1 Contractor shall provide
cast brass clean out plugs as required. Clean out plugs shall be threaded and
provided with key holes for opening. Clean out plugs shall be fixed to the pipe
by a GI socket and lead caulked joint.
12.0 WASTE PIPE FROM APPLIANCES:
12.1 Waste pipe from
appliances e.g. washbasins, sinks and urinals etc. shall be of Galvanized-iron
(GI) heavy duty (class ‘c’) conforming to IS: 1239 Part I as given in the
Schedule of Quantities.
12.2 All pipes shall be fixed
in gradient towards the outfalls of drains. Pipes inside a toilet room shall be
in chase unless otherwise shown on drawings. Where required pipes may be run at
ceiling level in suitable gradient and supported on structural clamps as
directed by the Architect/Consultants. Spacing for the clamps shall be 3000mm
for vertical runs and 2400mm for horizontal runs.
12.3 Pipes shall be
galvanized steel tubes conforming to IS : 1239 (Heavy Class) and quality
certificates shall be furnished. Pipes shall be provided with all required
malleable fittings conforming to IS : 1879 e.g. tees, couplings, bends, elbows,
unions, reducers, nipples, plugs etc. All GI waste pipes shall be terminated at
the point of connection with the appliance with an outlet of suitable diameter.
Pipes in chase shall be painted with two coats of black bitumestic paint and
exposed pipes with one coat of red oxide primer and two or more coats of
synthetic enamel paint or as given in the Schedule of Quantities.
TECHNICAL SPECIFICATION OF WC PAN
CONNECTOR:
13.1
The WC pan connector shall be
flexible/soft and shall be made of single body construction with integral fins,
made from EVA (Ethgl vingl Acetate). The pan connector must confirm to BS 5627:
1984. The pan connector must be supplied with one seal made of TPE (Thermo
plastic Elastomeric). The
pan connector must be supplied with factory fitted spring loaded seal guard.
13.2 The connector shall not be allowed to come in contact with mineral oil, grease, putty or any compound containing mineral oil or grease.
13.3 The pan connector must be stared away from direct sun light and flames.
13.4 FIXING:
The soil pipe must be reasonably clean and smooth an the diner surface, in case
the soil piping is in C.I material
then supplier supplied bush/adaptor shall be used.
The
connector socket is pushed fully home on to the pan spigot, the reafter the WC
is placed in position gently pushing the
fitment to ensure that the connector end filts into the spigot of the pipe.
The pan connector must be pushed in such an
way as to ensure that the seats and fins turn inward to ensure proper sealing.
14.0 CEMENT CONCRETE:
Cast iron soil and
waste pipes under floor in sunken slabs and in wall chases (when cut specially
for the pipe) shall be encased in cement concrete 1:2:4 (1 cement: 2 coarse
sand: 4 stone aggregate 12 mm size) 75 mm in bed and alround. When pipes are
running well above the structural slab, the encased pipe shall be supported
with suitable cement concrete pillars of required height at intervals of 1.8
m.
15.0 PAINTING :
15.1 Soil, waste, vent and
anti-siphonage pipes in any exposed location in shafts, pipe spaces etc. shall
be painted with two coats of primer and two or more coats of synthetic enamel
paint of colour as specified to given an even shade.
15.2 Pipes shall be painted
with paint of approved quality and shade in accordance with approved pipe colour
code.
15.3 GI waste pipes in chase
shall be painted with two coats of bitumen paint. Exposed pipes shall be
painted with two or more coats of synthetic enamel paint over two coats of etch
primer.
15.4 CI soil and waste pipes
below ground and those covered in cement concrete shall not be painted.
16.0 CUTTING AND MAKING GOOD HOLES/ CHASES :
16.1 Pipes shall be fixed and
tested as the building work proceeds. Contractor shall provide all necessary
holes, cut outs and chases in structural members as the building work proceeds.
Wherever holes are cut or left originally, they shall be made good with cement
concrete 1 : 2 : 4 (1 cement : 2 coarse sand : 4 stone aggregated 20mm nominal
size) or cement mortar 1 : 2 (1 cement : 2 coarse sand) as directed by the
Architect/Consultants and the surface restored as in original condition to the
entire satisfaction of the Architect/Consultants at no extra cost.
17.0 TESTING :
17.1 Testing shall be done in
accordance with IS : 1172 and IS:5329
except as may be modified hereinunder.
17.2 Before use at site all
CI pipes shall be tested by filling up with water for at least 30 minutes.
After filling, pipes shall be struck with a hammer and inspected for blow holes
and cracks. All defective pipes shall be rejected and removed from the site
within 48 hours.
17.3 Soil and waste pipes
shall be tested in sections after installation, by filling up the stack with
water. All openings and connections shall be suitably plugged as approved by
the Architect/Consultants. The total head in the stack shall be 4.5m at the
highest point of the section under test. The period of test shall be two (2)
hours minimum as directed by the Architect/Consultants. If any leakage is
visible, the defective part of the work shall be cut out and made good.
17.4 The Contractor shall
test all vent pipes by a smoke testing machine. Smoke shall be pumped into the
stack after plugging all inlets and connections. The stack shall then be
observed for leakages and all defective pipes and fittings removed or repaired
as directed by the Architect/Consultants.
17.5 A test register shall
be maintained and all entries signed and dated by Contractor and
Architect/Consultants. A proforma of the proposed test register shall be
submitted to the Architect/Consultants for approval.
17.6 All pipes in wall chase
or meant to be chased or buried shall be hydro tested before the chase is
plastered or the pipe encased or buried.
18.0 UPVC
PIPES & FITTINGS:
18.1 UPVC PIPE AND FITTINGS FOR RAIN WATER DISPOSAL SYSTEM :
18.1.1 Rain water pipe shall be UPVC SWR Type A
conforming to IS : 13592-1992.
18.1.2 Dimension of SWR Pipe Fittings shall be as
per DIN 19531 and DIN 19534 and conforms to IS : 14735-1999.
Rubber ring shall be
conforming to IS : 5382.
18.1.3 DIMENSION
OF SWR PIPES CONFORMING TO IS : 13592-1992
|
S.No. |
Nominal Outside diameter(D) mm |
Tolerance Of Outside diameter |
Wall Thickness – Type A (t) mm |
Wall Thickness – Type B (t) mm |
||
|
Min in |
Max |
Min |
Max |
|||
|
1. |
75 |
+0.3 |
1.8 |
2.2 |
3.2 |
3.8 |
|
2. |
90 |
+0.4 |
1.9 |
2.3 |
3.2 |
3.8 |
|
3. |
110 |
+0.4 |
2.2 |
2.7 |
3.2 |
3.8 |
|
4. |
160 |
+0.5 |
3.2 |
3.8 |
4.0 |
4.6 |
|
S.No. |
Size (mm) |
Horizontal Support
Distance (m) |
Vertical Support Distance (m) |
|
1. |
40 |
0.4 |
1.2 |
|
2. |
50 |
0.5 |
1.5 |
|
3. |
75 |
0.75 |
2.0 |
|
4. |
110 |
1.1 |
2.0 |
|
5. |
160 |
1.6 |
2.0 |
18.1.4 Maximum Support Distance in Meter :
18.1.5 Rubber ring shall be of make and
type approved by Pipe and fitting manufacturer. Rubber ring joint shall be made
in an approved manner as recommended by the manufacturer.
18.1.6 For testing, seal hermetically at all opening below the top
of the section to be tested. The water level shall then be raised to a height
of not less than 3m above the highest point of the section being tested or as
the inspection offer may direct. Every joint shall be carefully examined for
leaks.
19.1. TECHNICAL DETAIL
:
[1] Dimension of
Un-plasticized PVC Pressure Pipes [Ring Fit/Ring Tight Rigid PVC Pipes [As per
IS : 4985-2000].
|
N
Nominal |
Mean |
WALL THICKNESS |
||||||||||||
|
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 5 |
Class 6 |
|||||||||
|
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
|
|
20 |
20.0 |
20.3 |
- |
- |
- |
- |
- |
- |
- |
- |
1.1 |
1.5 |
1.4 |
1.8 |
|
25 |
25.0 |
25.3 |
- |
- |
- |
- |
- |
- |
1.2 |
1.6 |
1.4 |
1.8 |
1.7 |
2.1 |
|
32 |
32.0 |
32.3 |
- |
- |
- |
- |
- |
- |
1.5 |
1.9 |
1.8 |
2.2 |
2.2 |
2.7 |
|
40 |
40.0 |
40.3 |
- |
- |
- |
- |
1.4 |
1.8 |
1.8 |
2.2 |
2.2 |
2.7 |
2.8 |
3.3 |
|
50 |
50.0 |
50.3 |
- |
- |
- |
- |
1.7 |
2.1 |
2.3 |
2.8 |
2.8 |
3.3 |
3.4 |
4.0 |
|
63 |
63.0 |
63.3 |
- |
- |
1.5 |
1.9 |
2.2 |
2.7 |
2.8 |
3.3 |
3.5 |
4.1 |
4.3 |
5.0 |
|
75 |
75.0 |
75.3 |
- |
- |
1.8 |
2.2 |
2.6 |
3.1 |
3.4 |
4.0 |
4.2 |
4.9 |
5.1 |
5.9 |
|
90 |
90.0 |
90.3 |
1.3 |
1.7 |
2.1 |
2.6 |
3.1 |
3.7 |
4.0 |
4.6 |
5.0 |
5.7 |
6.1 |
7.1 |
|
1 10 |
110.0 |
110.4 |
1.6 |
2.0 |
2.5 |
3.0 |
3.7 |
4.3 |
4.9 |
5.6 |
6.1 |
7.1 |
7.5 |
8.7 |
|
1 25 |
125.0 |
125.4 |
1.8 |
2.2 |
2.9 |
3.4 |
4.3 |
5.0 |
5.6 |
6.4 |
6.9 |
8.0 |
8.5 |
9.8 |
|
1 40 |
140.0 |
140.5 |
2.0 |
2.4 |
3.2 |
3.8 |
4.8 |
5.5 |
6.3 |
7.3 |
7.7 |
8.9 |
9.5 |
11.0 |
|
160 |
160.0 |
160.5 |
2.3 |
2.8 |
3.7 |
4.3 |
5.4 |
6.2 |
7.2 |
8.3 |
8.8 |
10.2 |
10.9 |
12.6 |
|
180 |
180.0 |
180.6 |
2.6 |
3.1 |
4.2 |
4.9 |
6.1 |
7.1 |
8.0 |
9.2 |
9.9 |
11.4 |
12.2 |
14.1 |
|
200 |
200.0 |
200.6 |
2.9 |
3.4 |
4.6 |
5.3 |
6.8 |
7.9 |
8.9 |
10.3 |
11.0 |
12.7 |
13.6 |
15.7 |
|
225 |
225.0 |
225.7 |
3.3 |
3.9 |
5.2 |
6.0 |
7.6 |
8.8 |
10.0 |
11.5 |
12.4 |
14.3 |
15.3 |
17.6 |
|
250 |
250.0 |
250.8 |
3.6 |
4.2 |
5.7 |
6.5 |
8.5 |
9.8 |
11.2 |
12.9 |
13.8 |
15.9 |
17.0 |
19.6 |
|
280 |
280.0 |
280.9 |
4.1 |
4.8 |
6.4 |
7.4 |
9.5 |
11.0 |
12.5 |
14.4 |
15.4 |
17.8 |
19.0 |
21.9 |
|
315 |
315.0 |
316.0 |
4.6 |
5.3 |
7.2 |
8.3 |
10.7 |
12.4 |
14.0 |
16.1 |
17.3 |
19.9 |
21.4 |
24.7 |
|
355 |
355.0 |
356.1 |
5.1 |
5.9 |
8.1 |
9.4 |
12.0 |
13.8 |
15.8 |
18.2 |
19.6 |
22.6 |
24.1 |
27.8 |
|
400 |
400.0 |
401.2 |
5.8 |
6.7 |
9.1 |
10.5 |
13.5 |
15.6 |
17.8 |
20.5 |
22.0 |
25.3 |
27.2 |
31.3 |
Notes :
1. The
table is based on metric series of pipe dimension given in ISO 161/1 in respect
of pipe dimensions and ISO DIS 4422.
2. The
wall thickness of pipe is based on a safe working stress of 8.6 MPa at 27oC.
The working pressure gets reduced at sustained higher temperatures. Occasional
rise in temperature, as in summer, with concurrent corresponding reduction in
temperature during nights has no deleterious effect on the working pressure of
the pipes considering the total life of pipe.
20.0 MEASUREMENT AND RATES :
20.1
General :
Rates for all items shall be inclusive of all work and items called for
in the specifications given above and the Schedule of Quantities as applicable
for the work under floors, in shafts or at ceiling level at all heights and
depths.
All rates are inclusive of cutting holes and chases in RCC and masonry
work and making good the same.
All rates are inclusive of pre testing at site and final testing of the
installations, materials and commissioning.
20.2
Pipes :
a)
The
unit of measurement shall be linear metre to the nearest centimetre.
b)
All
UPVC & CI soil, waste, vent, anti-siphon age and rain water pipes, AHU
Drainage & sump riser shall be measured net, when fixed correct to a centimetre,
including all fittings along their length after fixing. The length shall be
taken along center line of the pipes and fittings. No allowance shall be made
for the portions of pipe lengths entering the sockets of the adjacent pipes or
fittings. The above shall apply to all cases i.e. whether pipes are fixed on
wall face or pillars or embedded in masonry or pipes running at ceiling level.
The quoted rate shall include lead jointing.
c)
GI
pipes shall be measured in running metre correct to a centimeter for the
finished work which shall include fittings e.g. bends, tees, elbows, reducers,
crosses, sockets, nipples, nuts, unions etc. The length shall be taken along
center line of the pipes and fittings. All pipes and fittings shall be
classified according to their diameter, method of jointing and fixing
substance, quality and finish. The diameters shall be nominal diameter of
internal bore. In case of fittings of unequal bore, the largest bore shall be
considered.
20.3
Cement concrete around pipes shall be measured along the center of the
pipe line measured per linear metre and include any masonry supports,
shuttering and centering, curing, cutting etc. complete as described in the
relevant specifications.
20.4
Slotted angles/ channels shall be measured per linear metre of finished
length and shall include support bolts and nuts, length embedded in the cement
concrete blocks of 1 : 2 : 4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm
nominal size) formed in the masonry walls; nothing extra shall be paid for the
cement concrete block and making good the masonry wall, anchor fastners etc.
complete.
20.5 Unit of measurement shall be the number of pieces. All urinal traps, trap gratings, hoppers, clean out plugs shall be measured by number and shall include all items described in the relevant specifications and Schedule of Quantities. Cockroach traps shall not be measured separately and are deemed to be included in the rate for traps.
20.6 Painting of pipes shall
be measured per running metre for each diameter of pipe and shall be inclusive
of all fittings and clamp. No deduction shall be made for fittings.
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