Attachment B- Statement of Work.pdf

ATTACHMENT B- STATEMENT OF WORK (SOW)

Solicita�on 951700-23-R-0267

Renova�on of the Staff Washrooms

PHASE-I – B&G WASHROOM RENOVATION

GENERAL DESCRIPTION:

This project calls for the complete renova�on of the Building & Ground staff’s washroom, approximate dimensions 9 sq.

meters

SCOPE OF WORK

CIVIL WORKS

Contractor shall demolish exis�ng wall & floor �les.

Contractor shall lay new wall & floor �le as per the specifica�on. Install new wooden door with frame and accessories (Hinges, Locks & Latches, Door Stops, Lever Handles, Door Closer, etc.) for the main entrance door to washroom as well as the WC Cubicle. Door louver (Size 600x200mm) shall be provided to toilet entrance door.

Remove exis�ng mirrors and replace with new (1500mm x 600mm), high quality with steel frame. Vanity lights of the same color temperature as the ceiling lights (Colour-5000K) to be mounted above the bathroom mirror for an even appearance.

Contractor shall supply and install soap dispenser (2No.), �ssue dispenser (1No.) and toilet paper dispensers (1No.), toilet roll holder (1No.) and ceramic urinal divider(1No.).

Surface prepara�on, applica�on of primer and pain�ng of the exis�ng ceiling (RAL 9010).

The contractor shall be also responsible for complete design and construc�on of all civil works required for full and safe opera�ons in all facili�es under this contract.

MECHANICAL-HVAC

Toilet areas shall be provided with exhaust ven�la�on systems. The Contractor shall demolish exis�ng exhaust system inside the B&G washroom. Contractor shall supply & install new exhaust fan with a capacity of 250cfm (1PH,230V,50Hz).

MECHANICAL-PLUMBING

The Contractor shall demolish exis�ng sanitary fixtures and plumbing system which include both drainage and domes�c water system inside the B&G washroom. Tie-in the new drainage line to the exis�ng main line. Contractor shall re-design and build domes�c cold and hot water systems, waste, drain and vent systems, and distribu�on systems.

The work covered in this scope also includes the delivery to site, erec�on, se�ng to work, adjus�ng, tes�ng and balancing and handing over in full opera�ng condi�on all of the plumbing equipment and associated plumbing works.

Western water closet (1 No.), Urinal with auto flush (1 Nos.), Countertop washbasin with auto faucets (2Nos.), Shower tray with glass cubicle (1No.), Ablu�on Hose (1No.), Water Heater 50Litre (1No.). The exis�ng water heater is located in adjacent break room.

Contractor need to replace the exis�ng shower tray & faucet with a new one having 6mm Tempered glass, Chrome profile finish and Stainless steel handle.

The contractor shall be also responsible for complete design and construc�on of all domes�c and special plumbing systems required for full and safe opera�ons in all facili�es under this contract.

ELECTRICAL

Replace the exis�ng Tube light fixture (Twin tube, 4�) 2 No. with new LED vapor �ght lights (Twin Tube, 4�, Colour Temperature-5000K).

Contractor shall re- design to provide mo�on sensors (2Nos.) and one addi�onal 15 Amp (IP65) electrical outlets.

PHASE-II TX-WASHROOM RENOVATION

GENERAL DESCRIPTION:

This project calls for the complete renova�on of the TX staff’s washroom, approximate dimensions 4.4 m (L) x 2.2m (W) x 2.3m (H).

SCOPE OF WORK

CIVIL WORKS

Contractor shall demolish exis�ng wall & floor �les. The acous�c ceiling and door of the TX Washroom shall be removed.

Contractor shall lay new wall & floor �le as per the specifica�on. Install new suspended ceiling system along with the acous�c �les & accessories. USAGM will supply the new ceiling �les. Install new wooden door with frame and accessories (Hinges, Locks & Latches, Door Stops, Lever Handles, Door Closer, etc.) for the main entrance door to washroom as well as the WC Cubicle. Door louver (Size 600x200mm) shall be provided to toilet entrance door. Separate the water closet and Shower tray with block works of 100mm thickness.

Remove exis�ng mirrors and replace with new (1500mm x 600mm), high quality with steel frame. Vanity lights of the same color temperature as the ceiling lights (Colour-5000K) to be mounted above the bathroom mirror for an even appearance.

Contractor shall supply and install soap dispenser (2No.), �ssue dispenser (1No.) and toilet paper dispensers (1No.), toilet roll holder (1No.) and ceramic urinal divider(3Nos.).

The contractor shall be also responsible for complete design and construc�on of all civil works required for full and safe opera�ons in all facili�es under this contract.

MECHANICAL-HVAC

Toilet areas shall be provided with exhaust ven�la�on systems. The Contractor shall demolish exis�ng exhaust system inside the TX – Staff washroom. Contractor shall supply & install new exhaust fan with a capacity of 250cfm (1PH,230V,50Hz).

MECHANICAL-PLUMBING

The Contractor shall demolish exis�ng sanitary fixtures and plumbing system which include both drainage and domes�c water system inside the TX – Staff washroom. Tie-in the new drainage line to the exis�ng main line. Contractor shall re-design and build domes�c cold and hot water systems, waste, drain and vent systems, and distribu�on systems.

The work covered in this scope also includes the delivery to site, erec�on, se�ng to work, adjus�ng, tes�ng and balancing and handing over in full opera�ng condi�on all of the plumbing equipment and associated plumbing works.

Western water closet (1 No.), Urinal with auto flush(2Nos.), Countertop washbasin with auto faucets (2Nos.), Shower tray with glass cubicle (1No.), Ablu�on Hose (1No.), Water Heater 50Litre(1No.).

Contractor need to replace the exis�ng shower tray & faucet with a new one having 6mm Tempered glass, Chrome profile finish and Stainless steel handle.

The contractor shall be also responsible for complete design and construc�on of all domes�c and special plumbing systems required for full and safe opera�ons in all facili�es under this contract.

ELECTRICAL

Replace the exis�ng Tube light fixture 4 No. (600x600mm) with new LED lights. The new lights will be supplied from USAGM.

Replace exis�ng Single pole switch (1No.) and double switch(1No.) with same ra�ng.

Contractor shall re- design room ligh�ng to ceiling LED panel lights and one addi�onal 15 Amp(IP65) electrical outlets.

Contractor shall provide mo�on sensors (2Nos.).

Es�mated Project Dura�on:

First phase: Preparatory Mee�ng, Documenta�on work & submital– 1Month

Second phase: Delivery of material to Site – 2 Months

Third phase: Demoli�on Works of B& G Washroom – 7 Days

Fourth phase: Construc�on Works of B& G Washroom– 30 Days

Fi�h phase: Closing the Punch-list & Handing Over of Phase:1 (B&G Washroom) – 3 Days

Sixth phase: Demoli�on Works of TX Washroom – 7 Days

Seventh phase: Construc�on Works of TX Washroom– 30 Days

Eighth phase: Closing the Punch-list & Handing Over of Phase: II (TX Washroom) – 3 Days

Total: 6 Months

Site Visit: 08/24/2023 at 10:00AM

SPECIFICATION

CIVIL WORKS

1. PORCELAIN TILE

A. Provide unglazed full body porcelain �le, with color extending uniformly through the body of the �le. Provide �le with a V0 aesthe�c classifica�on. Blend �les in factory and in a packages to have same color range and con�nuous blend for installa�on.

The make / origin of �le shall be from US, UK, Italy, Germany and Spain.

2.1 Porcelain wall Tile :

a. Composi�on: Full body Porcelain

b. Thickness: 8 mm.

c. Aesthe�c classifica�on : V0

d. Water absorp�on: 0.50 percent. As per ASTM C 373

e. Finish: Mate.

f. Module Size : 500 x 300mm

2.2 Porcelain wall Tile :

a. Composi�on: Full body Porcelain

b. Thickness: 8 mm.

c. Aesthe�c classifica�on : V0

d. Water absorp�on: 0.50 percent. As per ASTM C 373

e. Finish: Mate

f. Module Size : 1200 x 600mm

2.3 Porcelain floor Tile :

a. Composi�on: Full body Porcelain

b. Module Size: 500 x 300 mm.

c. Thickness: 9.5mm or 10 mm.

d. Aesthe�c classifica�on : V0

e. Water absorp�on: 0.50 percent. As per ASTM C 373

f. Finish: Mate.

g. Slip resistance R-12 minimum or DOF not less than 0.42

2. SETTING MATERIALS

A. Modified Dry-Set Mortar (Thinset): ANSI A118.4.

1. Provide prepackaged, dry-mortar mix containing dry, redispersible, vinyl acetate or acrylic addi�ve to which only water must be added at Project site.

2. For wall applica�ons, provide mortar that complies with requirements for nonsagging mortar in addi�on to the other requirements in ANSI A118.4.

B. Water-Cleanable, Tile-Se�ng Epoxy: ANSI A118.3.

2.7 GROUT MATERIALS

A. High-Performance Tile Grout: ANSI A118.7.

1. Polymer Type: Ethylene vinyl acetate or acrylic addi�ve, in dry, redispersible form, prepackaged with other dry ingredients.

B. Water-Cleanable Epoxy Grout: ANSI A118.3, with a VOC content of 65 g/L or less.

1. Provide product capable of withstanding con�nuous and intermitent exposure to temperatures of up to 60 and 100 deg C, respec�vely, and cer�fied by manufacturer for intended use.

C. Grout for Pregrouted Tile Sheets: Same product used in factory to pregrout �le sheets.

3. MISCELLANEOUS MATERIALS

A. Trowelable Underlayments and Patching Compounds: Latex-modified, portland cementbased formula�on provided or approved by manufacturer of �le-se�ng materials for installa�ons indicated.

B. Floor Sealer: Manufacturer's standard product for sealing grout joints and that does not change color or appearance of grout.

4. MIXING MORTARS AND GROUT

A. Mix mortars and grouts to comply with referenced standards and mortar and grout manufacturers' writen instruc�ons.

B. Add materials, water, and addi�ves in accurate propor�ons.

C. Obtain and use type of mixing equipment, mixer speeds, mixing containers, mixing �me, and other procedures to produce mortars and grouts of uniform quality with op�mum performance characteris�cs for installa�ons indicated.

5. GYPSUM TILES

A. Acous�cal Panel Standard: Provide manufacturer's standard panels according to ASTM E1264 and designated by type, form, patern, acous�cal ra�ng, and light reflectance unless otherwise indicated.

B. Classifica�on: Provide panels as follows:

1. Type and Form: Type XX, Gypsum �les.

2. Patern: G (smooth).

C. Light Reflectance (LR): Not less than 0.80.

D. Noise Reduc�on Coefficient (NRC): Not less than 0.60

E. Edge/Joint Detail: Square.

F. Thickness 20 mm unless otherwise indicated.

G. Modular Size: 600 by 600 mm unless otherwise indicated.

H. An�microbial Treatment: Manufacturer's standard broad spectrum, an�microbial formula�on that inhibits fungus, mold, mildew, and gram-posi�ve and gram-nega�ve bacteria and showing no mold, mildew, or bacterial growth when tested according to ASTM D3273, ASTM D3274, or ASTM G21 and evaluated according to ASTM D3274 or ASTM G21.

6. METAL SUSPENSION SYSTEM

A. Metal Suspension-System Standard: Provide manufacturer's standard, direct-hung, metal suspension system and accessories according to ASTM C635/C635M and designated by type, structural classifica�on, and finish indicated.

1. High-Humidity Finish: Where indicated, provide coa�ng tested and classified for "severe environment performance" according to ASTM C635/C635M.

B. Narrow-Face, Single-Web, Extruded-Aluminum Suspension System: Main and cross runners formed from extruded aluminum to produce structural members with 15-mm-wide faces.

1. Structural Classifica�on: Heavy-duty system.

2. Face Design: Screw-slot profile.

3. Face Finish: Painted white unless otherwise indicated.

4. Reveal Finish: Match face finish

7. DOORS

Personnel doors and frames shall be factory fabricated in accordance with ANSI A250.8 and NAAMM HMMA HMM unless local equivalent standards are used. Door grade shall be heavy duty (Grade II). Personnel doors shall be a minimum of 900mm in width and 45mmthick.

Interior wood doors shall comply with WDMA I.S. 1-A unless local equivalent standards are used. Provide AWI Grade A hardwood face veneer for transparent finished doors.

7.1 Hinges: pivots and hinges shall be to BS EN 1935 class 3-7-4-0-1-3-0-13 for internal doors no fire and no burglar ra�ng, class 3-7-4-1-1-3-0-13 for internal doors with fire ra�ng, without burglar ra�ng. Hinges shall be of a suitable type and matching otherhardware items on the doors. All hinges are to be of grade 304 sa�n stainless steel finish, fire rated, independently tested and cer�fied to BS EN 1935 as not compromising the specified fire ra�ng and suitable for the door weight, size and usage intended.

7.2 Weather Strip

7.2.1 Provide in accordance with ANSI/BHMA A156.22. Provide a set to include head and jamb seals, sweep strips, and, for pairs of doors. Provide weather-stripping with one of the following:

7.2.2 Extruded aluminum retainers: not less than 1.25 mm wall thickness with vinyl, neoprene, silicone rubber, or polyurethane inserts. Provide clear anodized aluminum.

7.2.3 Interlocking Type: Zinc or bronze not less than 0.45 mm thick.

7.2.4 Spring Tension Type: Spring bronze or stainless steel not less than 0.20 mm thick.

7.3 Thresholds: Provide in accordance with ANSI/BHMA A156.21. Use J35100, with vinyl or silicone rubber insert in face of stop, for exterior doors opening out, unless specified otherwise

7.4 Locks And Latches - Mor�se Locks and Latches: Provide in accordance with ANSI/BHMA A156.13, Series 1000, Opera�onal Grade 1, and Security Grade 2. Provide mor�se locks with escutcheons not less than 17 8mm by 57 mm with a bushing at least 6 mm long. Cut escutcheons to fit cylinders and provide trim items with straight, beveled, or smoothly rounded sides, corners, and edges. Provide knobs and roses of mor�se locks with screw less shanks and no exposed screws.

7.5 Door Stops: All door stops shall be robust and match other hardware items on the door. Provide rubber inserts, which can be easily replaced using simple tools.

7.6 Lever Handles: Provide lever handles where indicated in the Hardware Schedule. Provide in accordance with ANSI/BHMA A156.3 for mor�se locks of lever handles for exit devices. Provide lever handle locks with a breakaway feature (such as a weakened spindle or a shear key) to prevent irreparable damage to the lock when force in excess of that specified in ANSI/BHMA A156.13 is applied to the lever handle. Provide lever handles return to within 13 mm of the door face.

8 SILVERED FLAT GLASS MIRRORS

A. Mirrors, General: ASTM C1503; manufactured using copper-free, low-lead mirror coa�ng process.

B. Annealed Monolithic Glass Mirrors: Mirror Glazing Quality, clear.

1. Nominal Thickness: 6.0 mm.

C. Tempered Glass Mirrors: Mirror Glazing Quality for blemish requirements and complying with ASTM C1048 for Kind FT, Condi�on A, tempered float glass before silver coa�ng is applied; clear.

1. Nominal Thickness: 6.0 mm

9 Toilet Bath and Laundry Accessories A.Toilet Tissue (Roll) Dispenser (TTD):

1. Descrip�on: Single-roll dispenser

2. Moun�ng: Surface mounted.

3. Opera�on: Noncontrol delivery with standard spindle.

4. Capacity: Designed for 114- or 127-mm-diameter �ssue rolls.

5. Material and Finish: Provide cabinet of Stainless steel, ASTM A480/A480M No. 4 finish (sa�n).

B. Liquid-Soap Dispenser – Surface Mounted (SDSM):

1. Descrip�on: Designed for dispensing an�bacterial soap in liquid or lo�on form.

2. Moun�ng: Ver�cally oriented, surface mounted.

3. Lockset: Tumbler type.

4. Refill Indicator: Window type.

5. Material: 304 Stainless Steel with a corrosion-resistant all-purpose valve that dispenses liquid soaps, lo�ons, detergents and an�sep�c soaps.

6. Capacity: 1.2 L

MECHANICAL-PLUMBING

1. SYSTEM REQUIREMENTS

Domes�c water and waste systems shall be provided to each area with fixtures requiring water and/or waste connec�ons such as toilets, etc. The en�re water system shall include cold water to each fixture as well as to the water heater. Hot water shall be distributed to all lavatories, sinks, showers, etc. normally requiring hot water. Design of the water distribu�on and waste systems shall be in complete accordance with the requirements of the Interna�onal Plumbing Code (latest edi�on).

All water piping shall be concealed in all finished areas. Insula�on shall be provided where required to control swea�ng of pipes. Cold water piping shall be insulated using cellular glass or flexible elastomeric cellular insula�on.

2. PIPING MATERIALS

Domes�c water shall be distributed by means of PVC (cold water only), CPVC (cold or hot water) or copper for the pressure to be u�lized. PVC and CPVC shall not be used in areas where it will be exposed to outdoor sun.

2.1 Piping Material

2.1.1 Cold Water: CPVC/ SCH 40 / ASTM 2846/ASTM F 441

2.1.2 Drainage: PVC /SCH 40/ ASTM D 2665

2.1.3 Hot Water: CPVC/SCH 40/ ASTM 2846/ASTM F 441.

2.2 Manufacturers

2.2.1 Al-Adasani Pipe Factory,Kuwait

2.2.2 Khorafi Plastic Industries,Kuwait

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or beter than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

3 . FIXTURES

3.1 Manufacturers of Sanitary Fixtures And Fittings

a. Armitage Shanks – U.K

b. Kohler – U.S.A

c. Kaldewei – U.S.A

d. Stern Engineering – U.S.A.

e. Brondel – U.S.A.

f. Dorn Bracht - England

g. KWC – USA

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or beter than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

All plumbing fixture rough-ins shall be vented to the roof per Interna�onal Plumbing Code (latest edi�on).

P-traps shall be provided by others during plumbing fixture installa�on.

3.2 Western Water Closet

3.2.1 Western Water Closet for B&G-Building

Floor mounted, botom discharge, white vitreous china elongated bowl with white seat and lid, flush tank type. Water supply shut-off valves shall be provided.

3.2.2 Western Water Closet for TX Washroom

3.2.1 Provide Floor mounted wash down WC, white vitreous China, with matching seat and slow closing cover, horizontal outlet, elongated floor mounted Water Closet ASME A112.19.2/CSA B45.1 or equal and approved.

3.2.2 Concealed 3 l/6 l sensor operated tank and push button with override button, activated by a dual flush infrared sensor with support carrier.

3.2.3 Touch-free operation WC flush sensor powered by a 9V battery, with a siphon jet flush, low water consumptions, 100% brass chrome plated housing same as Stern Engineering Model # 620100 or equal and approved.

3.2.4 Angle stop valve with chrome plated pipe connector.

3.2.5 Proprietary connector to drainage system. Provide wax bowl ring including plastic sleeve.

3.2.6 Top of toilet seat height above floor shall be 15 to 16 inches.

3.3 Lavatories

Lavatories shall be floor mounted white vitreous china with hidden chair carriers, faucet and pop-up type drain. Faucets shall be single lever mixing type.

3.4 Countertop Lavatories:

3.4.1 ASME A112.19.2/CSA B45.1, white vitreous china self-rimming, in counter mounted, rectangular wash basin with minimum dimension 325 x 560 mm front to rear, with supply openings for use with top mounted center set faucets. Provide complete with all fixings same as Rak Ceramics Model Chamelion or equal and approved

3.4.2 Furnish template and mounting kit by lavatory manufacturer. Mount counter with the top surface 865 mm above floor and with 740 mm minimum clearance from bottom of the counter face to floor

3.4.3 Provide top-mounted IR sensor operated electronic lavatory faucet, sensor setting adjustable by remote control, internal solenoid valve, with 9V transformer same as Stern Engineering Model # Elite 1000 E, 236800 or equal and approved. Provide aerator with faucet

3.4.4 One pair of 15mm (1/2”) chromium-plated angle valves with chromium-plated copper tube flexible pipe.

3.5 Ablution Hose with spray:

Ergonomic Stainless-Steel hand sprayer, Brass core 7/8” T-vale with water shutoff and water pressure control for spray adjustability, 47” long metal spiral hose with inner woven core, sprayer holster for wall mount complete with all accessories for installa�on same as Brondell Cleanspa Luxury Hand Held Bidet or equal and approved. Provide with 230 mm projec�on spout, an�-splash or an� vandal laminar flow outlet, integral sensor, copper tube inlets same as Armitage Shanks Model Sensorflow 21 or equal and approved.

3.6 Urinal (UR)

3.6.1 White vitreous china, with vandal resistant applications, concealed inlet and outlet connections with concealed auto cistern same as Armitage Shanks Contour HygenIQ Urinal fully concealed, Ref # S6119-01 or equal and approved.

3.6.2 Urinal Flush sensor, surface mounted, mains, chrome plated, low water consumptions same as Armitage Shanks Sensorflow 21 Ref # A4856AA or equal and approved.

3.7 PLUMBING SPECIALTIES

3.7.1 Manufacturers

a. Watts Regulator Company.

b. Amtrol.

c. Claval Co.

d. J. R. Smith.

e. Zurn

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or beter than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

3.7.2 Products

A. Vacuum Breakers:

1. For hose bibs: Chrome plated brass, atmospheric type with flat pipe type, rubber discs and hose thread outlet.

2. For electric water heaters: Bronze body, pressure type with heat resistant disc opening to atmosphere at less than 12 mm (1/2 inch) mercury vacuum.

B. Thermosta�c Mixing Valves

Provide thermosta�c mixing valve for lavatory faucets. Mixing valves, thermosta�c type, pressure-balanced or combina�on thermosta�c and pressure-balanced shall be line size and shall be constructed with rough or finish bodies either with or without pla�ng. Each valve shall be constructed to control the mixing of hot and cold water and to deliver water at a desired temperature regardless of pressure or input temperature changes. The control element shall be of an approved type. The body shall be of heavy cast bronze, and interior parts shall be brass, bronze, corrosion-resis�ng steel or copper. The valve shall be equipped with necessary stops, check valves, unions, and sediment strainers on the inlets. Mixing valves shall maintain water temperature within2 degrees C of any se�ng.

C. Automa�c Relief Valves:

1. Pressure Relief Valves: Bronze body, stainless steel spring and trim, with pipe type manual actua�on lever. The unit shall be preset and sealed at the factory. The label shall contain the manufacturer’s name, serial no., maximum working pressure and set pressure.

2. Pressure and Temperature Relief Valves: Bronze body, stainless steel spring and trim, on ceramic coated temperature sensing element and pipe type manual actua�on lever. The unit shall be rated for relieving the maximum heat input to the water heater and preset and sealed at the factory. The label shall contain the manufacturers name, serial no., maximum working pressure and temperature, set pressure and temperature and relieving capacity in Btuh (KW).

D. Automa�c Air Release Valves:

1. Type AAV: Bronze body with non ferrous float and internal working parts. Construc�on shall be taken apart type for easy maintenance. Outlet shall be tapped for connec�on to drain line.

E. Water Hammer Arrestors (Type A, B, C, D, E)

1. Hydraulic accumulators shall comprise stainless steel external shell tested to 57 bar, precharged stainless steel integral bellows filled with clean dry nitrogen gas and all suitable for a maximum working pressure of 17 bar

2. Hydraulic accumulators shall be cer�fied in accordance with the Plumbing and Drainage Ins�tute (P.D.I.)

of U.S.A. Standard PDI-WH201, and the American Society of Sanitary Engineering Standard ASSE-1010.

3. Provide water hammer arrestors to all flush valves.

F. Thermometers:

1. Provide dial patern bimetal type thermometers with dial of not less than 90mm in diameter and dial gradua�on from 0 to 120 ° C.

2. No thermometer shall be installed more than 1.8m above the finished floor level without the specific approval of the Engineer’s Representa�ve.

G. Pressure Gauges:

1. Provide pressure gauges of the Bourdon type with a dial not less than 90mm in diameter. The dial shall be graduated in “Bars”. The gradua�on shall be from zero (except for compound pressure gauges) to not less than one and one half �mes, and not more than three �mes, the working pressure. The gauge shall comply with B.S.

1780. All pressure gauges shall be fited with a cock or valves so that the gauge may be shut off and removed while the pipeline is in opera�on.

2. No pressure gauge shall be installed more than 1.8m above finished floor level without the specific approval of the Engineer’s Representa�ve.

H. Expansion tank

Expansion tanks (Min Tank Volume :14L, Min Acceptance Volume : 8L, ASME Approved) shall be factory pre-charged, specifically designed for use on potable water systems and shall be rated for 93 degrees C water temperature and 1034 kPa working pressure.

J. Backflow Preventers:

1. Up to DN 50 (2 inch): Bronze body, stainless steel trim with atmospheric vent, complete with strainer, gate valves, test cocks and air gap fi�ng at vent connec�on.

2. DN 65 (2½ inch) and Larger: Bronze body; stainless steel trim with atmospheric vent, complete with flanged strainer and gate valves, test cocks and air gap fi�ng at vent connec�on.

3. Backflow preven�on devices must be approved by the State or local regulatory agencies. If there is no State or local regulatory agency requirements, the backflow preven�on devices must be listed by the Founda�on for Cross-Connec�on Control & Hydraulic Research, or any other approved tes�ng laboratory having equivalent capabili�es for both laboratory and field evalua�on of backflow preven�on devices and assemblies. Reduced pressure principle assemblies, double check valve assemblies, atmospheric (nonpressure) type vacuum breakers, and pressure type vacuum breakers shall be meet the above requirements. Backflow preventers with intermediate atmospheric vent shall conform to ASSE 1012. Reduced pressure principle backflow preventers shall conform to ASSE 1013. Hose connec�on vacuum breakers shall conform to ASSE 1011. Pipe applied atmospheric type vacuum breakers shall conform to ASSE 1001. Pressure vacuum breaker assembly shall conform to ASSE 1020. Air gaps in plumbing systems shall conform to ASME A112.1.2.

3.8 General-Duty Valves For Plumbing Piping

3.8.1 Angle Valves

3.8.1.1 Class 150, Bronze Angle Valves with Bronze Disc (Upto diameter 50mm).

3.8.1.2 Manufacturers: Subject to compliance with requirements, provide products by one of the following but are not limited to, the following:

a. Crane Co.

b. Kitz Corporation.

c. Nibco Inc.

d. Milwauke Valve Company

e. Watts Regulator Co.

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or better than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

3.8.1.3 Description:

a. Standard: MSS SP-80, Type 1.

b. CWP Rating: 230 psig (1590 kPa).

c. Body Material: ASTM B 62, bronze with integral seat and union-ring bonnet.

d. Ends: Threaded.

e. Stem and Disc: Bronze.

f. Packing: Asbestos free.

g. Hand wheel: Malleable iron

3.8.2 Ball Valves

3.8.2.1 Two-Piece, Full-Port, Brass Ball Valves with Stainless-Steel Trim (upto diameter 50mm):

3.8.2.2 Manufacturers: Subject to compliance with requirements, provide products by one of the following but are not limited to, the following:

a. Crane Co.

b. Kitz Corporation.

c. Milwaukee Valve Company.

d. Nibco Inc.

e. Pegler Hattersly

f. Watts Regulator Co.

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or better than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

3.8.2.3 Description:

a. Standard: MSS SP-110.

b. SWP Rating: 150 psig (1035 kPa).

c. CWP Rating: 600 psig (4140 kPa).

d. Body Design: Two piece.

e. Body Material: Forged brass.

f. Ends: Threaded.

g. Seats: PTFE or TFE.

h. Stem: Stainless steel.

i Ball: Stainless steel, vented.

j Port: Full

3.8.3 Check Valves (NRV)

3.8.3.1 Class 150, Bronze Swing Check Valves with Bronze Rubber Lined Disc (up to diameter 50mm).

3.8.3.2 Manufacturers: Subject to compliance with requirements, provide products by one of the following, but are not limited to, the following:

a. Kitz Corporation.

b. Milwaukee Valve Company.

c. NIBCO INC.

d. Watts.

e. Pegler - Hattersley.

f. Crane Co.

The manufacturers listed herein and included for the purpose of establishing minimum quality standards. Products equal in quality to or beter than those specified will be accepted. The decision of acceptability shall rest with the Engineer.

3.8.3.3 Description:

a. Standard: MSS SP-80, Type 3.

b. CWP Rating: 230 psig (1590 kPa).

c. Body Design: Horizontal flow.

d. Body Material: ASTM B 62, bronze.

e. Ends: Threaded.

f. Disc: Bronze, Rubber Lined.

3.9 Water Heater

Water heaters shall be electric storage type with either single element or non-simultaneous dual element type. Water heaters shall be sized in accordance with the requirements of ASHRAE HVAC Applica�ons Handbook, latest edi�on. All hot water piping shall be insulated. Electrical power for water heaters shall be 415/240 volt 1-phase, 50-cycle. Provide separate isola�on valve for water heater.

3.9.1.1 Manufacturers: Subject to compliance with requirements, provide products by one of the following but are not limited to, the following:

a. Ecotherm.

b. Bradford White Corpora�on.

c. Lochinvar Corpora�on.

d. Rheem Manufacturing Company.

e. Smith, A. O. Water Products Co.; a division of A. O. Smith Corpora�on.

3.9.1.2 Standard: UL 174.

3.9.1.3 Storage-Tank Construction: Steel, vertical arrangement.

a. Tappings: ASME B1.20.1 pipe thread.

b. Pressure Ra�ng: 150 psig (1035 kPa).

c. Interior Finish: Comply with NSF 61 barrier materials for potable-water tank linings, including extending lining material into tappings.

3.9.1.4 Factory-Installed Storage-Tank Appurtenances:

a. Anode Rod: Replaceable magnesium.

b. Dip Tube: Required unless cold-water inlet is near botom of tank.

c. Drain Valve: ASSE 1005.

d. Insula�on: Comply with ASHRAE/IESNA 90.1

e. Jacket: Steel with enameled finish.

f. Heat-Trap Fi�ngs: Inlet type in cold-water inlet and outlet type in hot-water outlet.

g. Hea�ng Elements: One/Two; electric, screw-in immersion type; wired for simultaneous opera�on unless otherwise indicated.

h. Temperature Control: Adjustable thermostat.

i. Safety Control: High-temperature-limit cutoff device or system.

j. Relief Valve: ASME rated and stamped for combina�on temperature-and pressure relief valves. Include relieving capacity at least as great as heat input, and include pressure se�ng less than domes�c-water heater working-pressure ra�ng. Select relief valve with sensing element that extends into storage tank.

3.9.1.5 Capacity and Characteristics:

a. Recovery: Water to be heated in two hours �me.

b. Temperature Se�ng: Storage at 140 deg F (60 deg C), Delivery at 120 deg F (44 deg C) through Thermosta�c mixing valve.

c. Hea�ng Elements Number of Elements: One/ Two

d. Kilowats Each Element not more than 4.5 kilowats

e. Number of Stages: One

3.10 WASTE, DRAIN AND VENT SYSTEM

3.10.1 Floor Drains

Floor drains shall be provided in each room that contains a water source or a future water source. All floor drains, equipment and future plumbing fixtures will be connected to waste and vent piping. Pipe chase will be provided where prac�cal to facilitate installa�on and future maintenance. Vent lines will be extended to terminate at one meter above roof.

Provide all floor drains with deep-seal traps. Floor drains shall consist of a galvanized body, integral seepage pan, and adjustable perforated or sloted chromium-plated bronze, nickel-bronze, or nickel-brass strainer, consis�ng of grate and threaded collar. Floor drains shall be cast iron except where metallic waterproofing membrane is installed. Screws used to secure the grates shall u�lize tamper-proof screws.

3.10.2 Waste collection system

The waste collec�on system for each facility shall be of the underground, gravity type. Waste shall be collected from each fixture and routed to a single point of connec�on for the building. Waste system shall be vented in accordance with the requirements of the IPC.

3.11 HOT WATER

Hot water shall be provided and stored at 140 degrees F (60 degrees C).Hot water shall be supplied to fixtures and outlets normally requiring hot water at a maximum temperature of 110 degrees F (43 degrees C) through the use of a thermosta�c mixing valve. The hot water shall be generated using electric type water heater(s). The unit shall be of the commercially available tank type having low or medium wat density electric hea�ng elements. Hot water piping shall be routed parallel to the building lines and concealed within finished rooms. All hot water piping shall be insulated.

3.12 PLUMBING PIPING INSULATION

3.12.1 Manufacturers

A. Insula�on Material:

1. Armstrong World Industries, Inc.

2. KIMMCO

3. Saudi Rock wool Factory

4. ISOFOAM

B. Insula�on Accessories:

1. PABCO

2. CHILDERS

3. PROFILES

C. The manufacturers listed herein and included for the purpose of establishing minimum quality standards.

Products equal in quality to or beter than those specified will be accepted.

3.12.2 Materials

A. General:

1. Flame/Smoke Ra�ngs: Provide composite mechanical insula�on (insula�on, jackets, coverings, sealers, mas�cs and adhesives) with flame-spread ra�ng of 25 or less, and smoke-developed ra�ng of 50 or less, as tested by ANSI/ASTM E 84 (NFPA 255) method.

2. Sealant, Adhesive, Coa�ngs and Mas�c over Thermal Insula�on of Pipework:

a. Sealant: Fire resis�ve, water based, non-fabricated sealant for use on low, medium and high velocity ducts. Foster 32-19, Class 0 or approved equal, BS476 Parts 6+7. UL181 B-M listed, as per ASTM G21, ASTM D2369.b. Adhesive: Foster 81-10 sheet metal adhesive or approved equal mee�ng ASTM C916 Type IV, NFPA 90A and 90B, 25/50 requirements, surface burning characteris�cs ASTM E84. Flames spread 10 and smoke developed 25. Fire resis�ve in dry state.

c. Coa�ng and Cladding:

i) Indoor: Foster Selfas Coa�ng 30-36 or approved equal over glass reinforcing membrane of Chil Glass No. 10 instead of 8 oz canvas cloth for indoor applica�on hot water pipe insula�on.

ii) Exposed: A coat of Foster 35-00/45-00 or approved equal water based fire resis�ve, UL listed mas�c with Chil Glass No. 10 instead of canvas cloth is required over fiberglass insula�on for outdoor or exposed applica�on, mas�c should be having NFPA 90A & 90B 25/50 requirement, and as per ASTM E84, ASTM F98.

iii) Exposed pipes should be cladded with corrugated gauge 24 thk of an�corrosive Alloy 3003/3105 with 40 lbs polykra� paper as moisture barrier on one sided, H-14 temper, ASTM B209. Plain or corrugated finish.

B. Pipe Insula�on Materials:

1. Flexible Elastomeric Insula�on: Closed-cell, sponge- or expanded-rubber materials. Comply with ASTM C 534/C 534M or equivalent BS/EN or equivalent Local Standards, Type I for tubular materials and Type II for sheet materials; conforming fire ra�ng of Class 1. Type I and II shall have vapor retarder/vapor barrier skin on one or both sides of the insula�on, and require an addi�onal exterior vapor retarder covering for high rela�ve humidity and below ambient temperature applica�ons.

a. Adhesive: Solvent base, contact adhesive, as recommended by insula�on material manufacturer.

b. Ultraviolet-Protec�ve Coa�ng: As recommended by insula�on manufacturer.

c. Thermal Conduc�vity: 0.038 W/mK at 20 deg. C (68 deg.F).

d. Density: 65 to 80 kg/m3

e. Water Vapor Permeability: 0.15 perm-inch.

f. Noise Reduc�on up to 27 L for 20 mm thick insula�on.

2. Vapor Barrier Material: As per ASTM F1249, ASTM E 84, Smoke developed 5, flame spread-10, NFPA 90A/90B, UL tested Class I.

3. Staples, Bands, Wires and Cement: As recommended by insula�on manufacturer for applica�ons indicated and as specified in Clause 3.

4. Adhesives, Sealers and Protec�ve Finishes: As recommended by insula�on manufacturer for applica�ons indicated and as specified. Adhesives and sealants shall be nonflammable type and resist microbiological growth.Thickness and densi�es are minimum; however provide more if necessary to achieve the same heat flow resistance of fiberglass.

3.13 CORROSION

Pipe subject to corrosion passing through or under corrosive fill such as cinders, concrete, or other corrosive material, shall be protected against external corrosion by protec�ve coa�ng, wrapping, or other means which will resist such corrosion.

Piping made of inherently noncorrosive material will be used to the greatest extent possible. Dielectric unions shall be used where dissimilar metals are used in the same piping system.

MECHANICAL-HVAC

1. General Toilet areas shall be provided with exhaust ven�la�on systems. The make / origin of exhaust fan shall be from US, UK, Italy, Germany and Spain.

A. Restroom Exhaust Fan – controlled by a manual switch

1. Occupied: Unit fan shall be energized and run.

2. Unoccupied: Unit fan is de-energized.

2. Regulatory Requirements

1. AMCA Compliance: Provide air distribu�on equipment bearing the Air Movement and Control Associa�on, Inc

(AMCA) Cer�fied Ra�ngs Seal.

ELECTRICAL

The make / origin of electrical fi�ngs & accessories shall be from US,UK, Italy, Germany and Spain.

1. SWITCHES

1.1 Toggle Switches

NEMA WD 1, UL 20, single pole, double pole, three-way, and four-way, totally enclosed with bodies of thermoplas�c or thermoset plas�c and moun�ng strap with grounding screw. Handles shall be white thermoplas�c. Wiring terminals shall be screw-type, side-wired or of the solderless pressure type having suitable conductor-release arrangement. Contacts shall be silver-cadmium and contact arm shall be one-piece copper alloy. Switches shall be rated quiet-type ac only, 415/240 volts, with current ra�ng and number of poles indicated.

2. RECEPTACLES

BS 1363-2 m with integral switches grounding type. Ra�ngs and configura�ons shall be as indicated. Bodies shall be of white as per NEMA WD 1. Face and body shall be thermoplas�c supported on a metal moun�ng strap. Dimensional requirements shall be per NEMA WD 6. Provide screw-type, side-wired wiring terminals. Connect grounding pole to moun�ng strap. The receptacle shall contain triple-wipe power contacts and double or triple-wipe ground contacts.

Contractor’s Responsibility

3. It is the contractor’s responsibility to verify the exact dimensions and measurements during the site survey.

4. The worksite area has electrical piping/cabling. The contractor must verify all electrical piping/cabling before star�ng the demoli�on works and shall be responsible for any damages to electrical/ network cabling.

5. Samples of fi�ngs, taps and floor �les, ceiling �les, mirror, wall paint color, and electrical accessories shall be submited for approval prior to the installa�on. All samples of products/materials used for this project should be submited for review and approval. Product data/catalogs of products shall be provided when actual samples cannot be provided. Proposals with incomplete product data/catalogs will not be technically acceptable

6. Any damages caused to the adjacent loca�ons, areas, or items (Equipment, Doors, building, etc.) has to be restored to their original condi�ons by the contractor

7. General cleaning on a daily basis and final cleaning on comple�on as appropriate

8. The contractor shall identify a Site Supervisor who shall be responsible for the overall management of the project. The Site Supervisor shall speak in English.

9. The workforce should be fully vaccinated and wear face masks at all times.

10. The contractor shall ensure the work site is cleaned and item restored at the end of each day.

11. The work site shall always be kept clean and clear of obstructions as the surrounding area shall be in use, and the work should pose the least impact upon the general day to day use of the property.

12. Waste disposal is contractor’s responsibility.

13. Contractor shall submit final As-built drawing.

14. Technical Proposal & project schedule shall be submitted.