B.30 Mechanical Piping Insulation - VN - Centrepoint

MECHANICAL PIPING INSULATION

The English language version prevails. u tin ting Anh khi c tranh ci.

Centrepoint Page 1 of 12 of B.30 18 September 2007


CCH NHIT CHO NG NG C KH

1 GENERAL 1 TNG QUT

1.1 FUNCTIONAL DESCRIPTION 1.1 M T The mechanical insulation scope of work covers the insulation of all chilled water pipework, condensate pipework and all hot exhaust flues.

Phm vi cng vic cng tc cch nhit cho ng ng c kh bao gm cch nhit cho tt c ng ng nc lnh, ng nc ngng t, v ng khi thi nng.

1.2 CROSS REFERENCES 1.2 THAM CHIU CHO

General Comply with the General requirements worksection.

Tng qut Ph hp vi chng Nhng yu cu chung.

Related worksections Refer to the following worksections: Mechanical General Requirements, Cold and Hot Water System, Mechanical Piping, Chillers

Nhng chng lin quan Tham chiu n cc chng sau: Nhng yu cu chung v c kh, H thng cp nc nng v lnh, H thng ng ng c kh,H thng my lm lnh nc Chillers,

1.3 STANDARDS 1.3 TIU CHUN

Installation of mineral wool insulation Comply with the AMWU/CFMEU/CEPU/FARIMA Industry Code of Practice for the Safe Use of Glass Wool and Rock Wool Insulation. Marking: Deliver mineral wool products to site in packaging labelled FBS-1 BIO-SOLUBLE INSULATION.

Lp t cch nhit bng len khong Tun th Lut thi cng cng nghip ca AMWU/CFMEU/CEPU/FARIMA v an ton s dng bng len thy tinh v bng len trong cch nhit. Ghi nhn: Giao cc sn phm bng len khong n cng trng cn nguyn bao gi theo FBS-1 VT LIU CCH NHIT HO TAN.

1.4 INTERPRETATIONS 1.4 KHI NIM

Definitions Mineral wool (including glasswool and rockwool): Entangled mat of fibrous non-crystalline material derived from inorganic oxides or minerals, rock, slag or glass, processed at high temperatures from a molten state. Polyester: Insulation manufactured from thermally bonded polyester fibres.

nh ngha Si khong (bao gm bng thy tinh v bng ): Tm si vt liu khng kt tinh c ngun gc t cc oxyt v c hoc cc cht khong, , x thp hoc thy tinh, x l nhit cao t trng thi nng chy. Polyester: l vt liu cch nhit lm t si polyester kt dnh nhit.

1.5 DESIGN 1.5 THIT K

Performance Requirements For cold piping, design, supply and install an insulation system that shows no signs of condensation under any likely to be experienced conditions about the pipework, and associated fittings. This is accepted as equal to the design wet bulb plus 1 deg C. For hot water piping, design, supply and

Yu cu v hiu sut i vi ng ng lnh, thit k, cung cp v lp t h thng cch nhit, sao cho khng c c s ngng t trong bt k iu kin bit trc no v ng ng v cc ph kin. iu ny c chp thun tng ng vi nhit bu t thit k cng vi 10C. i vi ng ng nng, thit k, cung




install an insulation system that minimises heat loss, such that the external surface of the pipework does not exceed likely to be experienced conditions by more than 5 deg C. This is accepted as equal to the minimum design dry bulb less 1 deg C.

cp v lp t h thng cch nhit gim thiu tn tht nhit, sao cho b mt ngoi ca ng gi khng vt hn 50C so vi nhng iu kin bit. iu ny c chp thun tng ng vi nhit bu t thit k cng vi 10C.

2 QUALITY 2 CHT LNG

2.1 PRE-COMPLETION TESTS 2.1 TH NGHIM TRC KHI HON TT

Tensile strength of paper To ASTM D828 or AS/NZS 1301.404s.

bn ko ca giy Theo ASTM D828 hoc AS/NZS 1301.404s.

Water vapour transmission characteristics of paper To AS 1301.419s Condition B, or ASTM E96 Procedure E.

c tnh dn hi nc ca giy Theo AS 1301.419s iu kin B, hoc ASTM E96 Th tc E.

Early fire hazard indices Spread of flame index: To AS/NZS 1530.3. Smoke developed index: To AS/NZS 1530.3. Flammability index: To AS 1530.2.

Ch s bt chy Ch s chy lan: theo AS/NZS 1530.3 Ch s sinh khi: theo AS/NZS 1530.3 Ch s bc chy: theo AS 1530.2

Aluminium foil laminate tape Physical properties: To SMACNA Fibrous Glass Duct Construction Standards.

Bng keo nhm c tnh vt l: theo SMACNA Tiu chun ch to ng gi si thy tinh.

2.2 SAMPLES 2.2 MU VT T

General Submit samples of the following: - Each type of insulation, including at

least one transverse joint and one hanger on a piece of pipe.

Tng qut Trnh duyt mu sau: - Mi loi cch nhit, bao gm t nht

mt mi ni nm ngang v mt chi tit treo ng trn mt on ng mu.

2.3 ALTERNATIVE INSULATION METHODS AND MATERIALS

2.3 LA CHN PHNG N CCH NHIT V VT LIU

General Do not submit alternatives for materials or methods that have lesser quality or characteristics in terms of the following: - Performance. - R value. - Durability during and after

installation. - Corrosion resistance. - Cold bridging.

Tng qut Khng trnh duyt cc phng n vt t hoc bin php c cht lng hoc c tnh thp hn cc yu t sau: - Hiu sut - Gi tr R - bn trong khi v sau khi lp t. - chng n mn - Cu nhit lnh.

2.4 SUBMISSIONS 2.4 TRNH DUYT

Calculations Submit supplier calculations demonstrating that selected insulation methods, materials & thicknesses meet performance requirements.

Bng tnh Trnh duyt bng tnh ca nh cung cp chng minh rng phng php cch nhit, vt liu v chiu dy chn la p ng cc yu cu v hiu sut.




Materials Submit product data for the following. - Piping insulation - Piping vapour barrier - Piping cladding

Vt liu Trnh duyt ti liu cc vt t sau: - Vt liu cch nhit ng ng - Lp ngn m - Lp ph bao che

3 MATERIALS 3 VT LIU

3.1 GENERAL 3.1 TNG QUT

General Provide piping insulation in conformance with the Minimum piping insulation thickness table.

Tng quan Cung cp cch nhit cho ng ng ph hp vi bng dy cch nhit ng ng ti thiu.

Minimum piping insulation thickness table Bng dy cch nhit ng ng ti thiu

Nominal pipe size/ ng knh danh nghaDN 15-40 50-80 100-125 150 200

Minimum insulation thickness (mm)

Temperature of piping contents Nhit ca cht lng trong ng

Maximum thermal conductivity at mean temperature (W/m.K) dn nhit ti a nhit trung bnh Chiu dy lp cch nhit ti thiu (mm)

-20, < 2C 0.037 at 20 C 50 63 75 75 100 2, < 20C 0.037 at 20 C 50 50 50 63 63 40, < 90C 0.037 at 50 C 25 25 25 38 38 90, < 120C 0.038 at 65 C 38 38 50 50 50 120, < 175C 0.042 at 90 C 63 63 63 75 88 175C 0.047 at 120 C 63 75 75 100 125

3.2 MATERIALS 3.2 VT LIU

Fire hazard properties Fire hazard indices for all materials when tested in conformance with AS/NZS 1530.3: Spread of flame index: 0. Smoke developed index: 3. Facing materials: Flammability index: < 5.

c tnh nguy chy Ch s nguy chy ca tt c cc loi vt liu khi th nghim ph hp vi tiu chun AS/NZS 1530.3: Ch s chy lan: 0 Ch s sinh khi: 3 Vt liu b mt: Ch s bc chy: < 5

Polystyrene foam Description: To AS 1366.3 Class S or SL self-extinguishing grade, machine cut to form tubular half-sections for pipe insulation or batts for insulating fittings. For tanks and vessels, mould to shape. Density (minimum): - Moulded grades:

. Class S: 16 kg/m3.

. Class SL: 13.5 kg/m3. - Extruded grade: 32 kg/m3.

Bt xp M t: theo AS 1366.3 Class S hoc SL loi t dp tt, ct bng my thnh dng bn nguyt cch nhit ng hoc cch nhit ph kin. Bnh v h cha, dng c sn. T trng (nh nht) Loi c:

. Class S: 16 kg/m3.

. Class SL: 13.5 kg/m3. - Loi cn: 32 kg/m3.




Polyolefin foam Type: Closed cell cross-linked polyolefin foam produced using non-CFC blowing agent. Insulation surface facing: Heat-bonded aluminium foil laminate.

Bt xp polyolefin Loi: bt xp polyolefin lien kt ht sn xut bng vt liu thi non-CFC. B mt cch nhit: l nhm mng lien kt nhit

Mineral wool and polyester Description: Select from the following: - Mineral wool resin-bonded to form

tubular sections. - Polyester in moulded tubular sections. Early fire hazard indices: - Spread of flame index: 0. - Smoke developed index: 3

(maximum). Cold piping: Do not provide mineral wool for cold piping, except for the following: - To provide a fire rated building

penetration. - For filling air gaps around valves and

fittings.

Bng len khong v polyester M t: Chn mt trong hai: - Bng len khong dn bng nha do

to thnh on ng. - Polyester dng khun ng. Ch s bt chy: - Ch s chy lan: 0 - Ch s sinh khi: 3 (ti a) ng ng lnh: Khng s dng bng len khong cho ng ng lnh, ngoi tr cho: - to ra l xuyn kt cu xy dng

chu la. - lp y khe h xung quanh van v

ph kin.

Nitrile Rubber Type: Chemically blown closed cell nitrile rubber in tubular sections for pipe insulation, in sheets for insulating pipe fittings, and in sheets or rolls for ducts, large pipes, tanks and vessels. Provide with a smooth natural finish and vapour barrier properties. Type test required from independent lab. Standard: To ASTM C 534. Physical properties: - Maximum thermal conductivity:

0.04 W/mK at 0oC. - Moisture absorption: Non-

hygroscopic. - Water vapour permeability:

0.065 ng/Pa.s.m (maximum). - Early fire hazard indices:

. Spread of flame index: 0.

. Smoke developed index: 3 (maximum).

Coating: Provide 2 coats of tintable, water-based, rubberised, UV resistant, flexible paint finish to outdoor installations. Wrap: Wrap with an approved white PVC wrap. External: sheath.

Cao su nitrile Chng loi: cao su nitrile thi ho cht t ong kn dng tm cho cch nhit ph kin ng ng hay dng ng cch nhit cho ng, v dng tm hoc cun cho ng gi, ng c ng knh ln, bn v bnh cha. C b mt hon thin t nhin phng v c tnh cht ngn m. Th nghim mu phi c t phng th nghim c lp. Tiu chun: theo ASTM C534 c tnh vt l: - dn nhit ti a: 0.04 W/mK at

0oC. - hp th ng sng: khng hp

th. - hp th hi nc: 0.065 ng/Pa.m.s.

- Ch s bt chy: . Ch s chy lan: 0 . Ch s sinh khi: 3 (ti a)

Sn ph: ph 2 lp sn do chu tia cc tm, nn cao su v nc, c thuc mu cho cc chi tit lp t ngoi tri. Bc xung quanh: qun xung quanh bng lp PVC trng c ph duyt. Bn ngoi: Bao che.

Phenolic Foam Type: Insulation shall comprise of 35 kg/m minimum density CFC free rigid phenolic foam sections, one metre in length with factory applied fully bonded reinforced aluminium foil facing. Finishing: The bore face of sections shall

Bt xp phenolic Chng loi: dng ng cng c t trng 35kg/m3 khng cha CFC, di 1m c lp mng giy nhm tng cng dn c nh hon ton ti nh my. Hon thin: B mt khoan l ca on ng phi c kh bi v qut mt lp




be de-dusted and coated with a non odorous passivating solution after manufacture. Manufacturer: The insulation shall be Kooltherm phenolic foam, as manufactured by Kingspan Industrial Insulation Limited. Physical properties: - Maximum thermal conductivity:

0.018W/mK at 10C mean. - Moisture absorption: Non-

hygroscopic. - Water vapour permeability:

0.065 ng/Pa.s.m (maximum). - Early fire hazard indices:

. Spread of flame index: 0.

. Smoke developed index: 3 (maximum).

External: Insulation shall have a weatherproof coating of minimum 0.8mm thickness Polyisobutylene sheeting bonded to the insulation with minimum 30mm wide circumferential and longitudinal lap joints which shall be fully solvent welded in accordance with the manufacturers instructions. Internal & exposed: Sheathed. Bends and fittings: shall be formed from mitred and trimmed sections, cut to ensure that a good contact with the surface to be insulated is made.

dung dch chng oxy ho khng mi sau khi sn xut. Nh sn xut: bt xp phenolic Kooltherm, c sn xut bi Kingspan Industrial Insulation Limited c tnh vt l: - dn nhit ti a: 0.018W/mK

trung bnh 10C . - hp th ng sng: khng hp

th. - hp th hi nc: 0.065 ng/Pa.m.s.

- Ch s bt chy: . Ch s chy lan: 0 . Ch s sinh khi: 3 (ti a)

Bn ngoi tri: Lp cch nhit phi c bao ph chng thi tit bng tm Polyisobutylene dy ti thiu 0,8mm dn vo lp cch nhit vi mi ni m theo chiu di v chiu chu vi ti thiu rng 30mm, dn keo dnh hon ton theo hng dn ca nh sn xut. Bn trong v l ra: bc bao che. ng co v ph kin: lm t cc on ng ct ta vung gc sao cho m bo c mt s tip xc tt vi b mt cch nhit. Chiu dy da theo tiu chun BS 5422: 1990

Adhesives, sealants and mastics Early fire hazard indices: - Spread of flame index: 0. - Smoke developed index: 3. Mastic vapour barrier: - Water vapour permeance:

. Chilled water pipes: 15 ng/N.s.

. Cold water pipes: 50 ng/N.s.

Keo dn, Cht trt kn v mastic Ch s bt chy: - Ch s chy lan: 0. - Ch s sinh khi: 3 Lp ngn m mastic - ht hi nc: ng nc lm lnh: 15 ng/N.s ng nc lnh: 50 ng/N.s

Aluminium foil laminate sheet Physical characteristics: - Tensile strength (minimum):

. Machine direction: 14.5 kN/m.

. Lateral direction: 9.8 kN/m. - Water vapour permeance:

. Creased: 2.26 ng/N.s.

. Uncreased: 1.13 ng/N.s. Early fire hazard indices: - Spread of flame index: 0. - Smoke developed index: 0. - Flammability index: 5. Operating temperature rating: > 10C above temperature of fluid in pipe.

Lp giy nhm c tnh vt l: - Sc bn ko (ti thiu):

. Theo chiu my: 14.5 kN/m.

. Theo chiu lch: 9.8 kN/m - hp thu hi nc:

. C np: 2.26 ng/N.s.

. Khng np: 1.13 ng/N.s. - Ch s bt chy:

. Ch s chy lan: 0

. Ch s sinh khi: 0

. Ch s chy: 5 Nhit lm vic ti thiu: ln hn nhit cht lng trong ng 10C




Aluminium foil laminate tape Adhesive: Non-toxic, high tack synthetic pressure sensitive type. Liner: Silicone coated paper. Backing: Aluminium foil laminate. Minimum width: 50 mm. Physical properties: - Tensile strength: 4.8 kN/m (average

minimum). - Shear adhesion: To SMACNA Fibrous

Glass Construction standards Table 3.2.

- Peel adhesion at 180: 0.68 kN/m (average minimum).

Water vapour permeance: - Creased: 2.26 ng/N.s. - Uncreased: 1.13 ng/N.s.

Bng keo nhm Keo dn: khng c, loi nhy p ng khu ch tng hp cao. Lp lt: giy ph silicone. Tm nn: mng nhm mng. Chiu rng ti thiu; 75mm c tnh vt l: - Sc bn ko: 4.8 kN/m (trung bnh

ti thiu) - Sc dnh ko: theo bng 3.2 ca

SMACNA tiu chun ch to ng gi si thy tinh.

- Sc dnh bc 180: 0.68 kN/m (trung bnh ti thiu).

hp thu hi nc: - C np: 2.26 ng/N.s. - Khng np: 1.13 ng/N.s.

Reinforced cloth tape Adhesive: Grey calendered rubber or acrylic resin. Backing: Cotton/polyester blend or polyester film.

Bng vi tng cng Keo dn: cao su cn my mu xm hoc nha acrylic. Tm nn: phi t l cotton/polyester hoc mng polyester.

4 EXECUTION 4 THI CNG

4.1 GENERAL 4.1 TNG QUT

General General: Do not apply insulation to piping joints until piping pressure testing is complete. Before installing insulation, ensure that surfaces are clean and dry. Supports: Do not apply insulation at supports until the spacers, vapour barrier (if any) and metal sheathing (if any) has been installed.

Tng qut Tng qut: Khng thc hin bc cch nhit cho cc mi ni cho n khi th nghim p sut ng ng c hon tt. Trc khi lp t cch nhit, m bo rng cc b mt kh v sch. Gi : Khng bc cch nhit ti cc gi cho n khi cc chi tit m, lp ngn m v lp bao che kim loi c lp t.

Cold piping General: Insulate piping carrying fluids at temperatures below ambient including chilled water piping, cold refrigerant and condensate piping, and associated valves and fittings.

ng ng lnh Tng qut: Bc cch nhit cho ng ng cht lng c nhit thp hn nhit mi trng bao gm ng ng nc lm lnh, ng mi cht lnh v ng nc ngng, v cc van v ph kin lin quan.

Hot piping General: Insulate the following: - Steam, condensate, heating, warm and

hot water piping. - Piping hazardous to personnel,

including blow down piping. - Piped services where trace heating is

incorporated. Exceptions: Except where necessary for personnel protection, do not insulate: - Sludge and drain piping carrying hot

ng ng nc nng Tng qut: bc cch nhit cho - ng hi, ng nc ngng, ng gia

nhit, ng nc nng v ng nc m.

- ng ng nguy him cho con ngi, bao gm c ng x xung.

- Cc ng ng c gn chi tit gia nhit.

Ngoi l: Tr khi cn thit cho mc ch an ton cho con ngi, khng bc




fluids. - Condensate waste piping.

cch nhit: - ng ng thot, ng nc thi

mang cht lng nng. - ng nc nc ngng.

Pump and valve insulation Insulate all pumps, flanges, unions and valves as for attached pipework. Note: Insulate chilled water pumps and strainers with removable covers using hand operated clasps (not screws or other fasteners requiring tools).

Bc cch nhit cho van v bm Bc cch nhit cho tt c bm, mt bch, racco v van nh ng ng lp vo. Lu : Bc cch nhit cho bm nc lm lnh v lc Y bng cc tm tho ri c lp cht bng cc kp ng m bng tay (khng bt vt hoc cc chi tit kp cht khc cn s dng dng c m)

4.2 PIPING INSULATION SYSTEMS

4.2 H THNG CCH NHIT NG NG

Insulation systems Comply with the Insulation systems table for the selection and application of insulation systems.

H thng cch nhit Chn la v s dng cc h thng cch nhit phi tun th bng h thng cch nhit.

Insulation systems table Bng h thng cch nhit Insulation system

Application for piping

Insulation material

Insulation surface facing

Insulation fixing material

Mineral wool Hot or selected sections of cold

Mineral wool Aluminium foil laminate

None required

Polyester fibre Hot Polyester fibre Aluminium foil laminate

None required

Polyolefin foam Hot Polyolefin foam Aluminium foil laminate

None required

Polyolefin foam Cold Polyolefin foam Aluminium foil laminate and mastic as a vapour barrier

Adhesive

Polystyrene system

Cold Polystyrene foam

Aluminium foil laminate and mastic as a vapour barrier

Adhesive

Phenolic foam Cold Phenolic foam Aluminium foil laminate and mastic as a vapour barrier

Adhesive

4.3 COLD PIPING INSULATION 4.3 BC CCH NHIT CHO NG NG LNH

Installation General: If practicable, do not slit. If slit, and for valves, fittings and large diameter pipes, fix with adhesive at joints. Adhere to the pipe at end joints, for a distance of 25 mm, to compartmentalise each section. Timing: Do not install before pressure

Thi cng Tng qut: Nu kh thi, khng rch ng cch nhit. Nu rch, s dng cho van, ph kin v ng ng knh ln, dn keo cc v tr ni. Dn cht vo ng u cui mi ni, di 25mm, cch ly ring bit tng on ng. Thi im: khng bc cch nhit cho




testing at joints, fittings and valves. Do not adhere butt joints until after pressure testing.

mi ni, ph kin v van trc khi th nghim p lc. Khng dn cch nhit mi ni i u cho n sau khi th nghim p lc.

Nitrile Rubber If practicable, do not slit. If slit, and for valves, fittings and large diameter pipes, fix with adhesive at joints. Installation: Adhesive fix and seal exterior joints. Adhere to the pipe at end joints, for a distance of 25 mm, to compartmentalise each section. Protection: Provide metal sheath insulation: - where exposed to sunlight; or - where subject to mechanical damage. Alternative protection: Where exposed to sunlight but not exposed to mechanical damage provide 2 coats of tintable, water-based, rubberised, UV resistant, flexible paint finish to outdoor installations.

Cao su nitrile Nu kh thi, khng rch ng cch nhit. Nu rch, s dng cho van, ph kin v ng ng knh ln, dn keo cc v tr ni. Thi cng: Dn keo v lm kn cc mi ni bn ngoi. Dn cht vo ng u cui mi ni, di 25mm, cch ly ring bit tng on ng. Bo v: thc hin bao che kim loi cho lp cch nhit : - Ni l ra di nng mt tri. - Ni d b h hng c hc. Cch khc: Ni no l ra di nh nng nhng khng b h hng c hc, c th thc hin ph 2 lp sn do chu tia cc tm, nn cao su v nc, c thuc mu cho cc chi tit lp t ngoi tri.

Polystyrene, polyolefin, and phenolic foam Vapour barrier: Factory bond aluminium foil laminate to insulation and provide a minimum overlap of 50 mm at the longitudinal joint. Extent of application of adhesive or sealant: - To mating faces of polystyrene on

joints between sections. - To steel pipe to be insulated. - To faces of polystyrene and pipe

support blocks at joints. Longitudinal joints: Stagger longitudinal joints a minimum of 75 mm between sections. Straps: Fix insulation at a maximum of 500 mm centres with 12 mm wide polypropylene, metallic-coated steel or aluminium straps. Machine pull metal straps into the insulation to create a smooth surface for application of the vapour barrier. Bends: Cut insulation into segments and seal together with adhesive, or provide preformed bends, following bend contours. Fix to piping. Fittings, valves and flanges: Cut insulation and form it to fit around fittings, valves and flanges. Provide loose mineral wool to fill air gaps and voids. Provide a continuous vapour barrier. Vapour barrier: Proprietary water-based mastic vapour barrier.

Bt xp Polystyrene, polyolefin, and phenolic Lp ngn m: lp giy nhm dn ti nh my cch m v dn chng m ti thiu 50mm mi ni theo chiu di. Nhng trng hp phi s dng keo dn hoc cht lm kn: - Dn hai b mt Polystyrene gia cc

on ni. - Dn ln ng thp cn cch nhit. - Dn ln Polystyrene v khi ng

ti mi ni. Mi ni dc chiu di: dn zic zac dc chiu di ti thiu 75mm gia cc on. Dy ai: Lp cch nhit cch nhau ti a 500mm tnh t tm vi Polystyrene rng 12mm, bng thp m hoc ai nhm. Dng my ko dy kim loi vo lp cch nhit to ra mt b mt phng u c tc dng cch m tt. Ch b cong: Ct vt liu cch nhit thnh nhiu on v dn vi nhau bng keo, hoc s dng co ch to sn, theo bin dng ch b cong. Lp vo ng ng. Ph kin, van, v mt bch: Ct vt liu cch nhit v to hnh lp kht vi cc b mt cn cch nhit ph kin, van, v mt bch. S dng bng len khong lp y cc khe h v l trng. To ra mt lp ngn m lin tc. Lp ngn m: dng lp ngn m bng va mastic trn nn nc, loi c nhn hiu ni ting.




4.4 MASTIC VAPOUR BARRIER 4.4 MASTIC NGN M

Elastomeric finish Apply to all cold pipework insulation, an elastomeric coating such as Fosters 60/95 according to maufacturers instructions and recommendations.

Hon thin bng Elastomeric p dng cho cch nhit ng nc lnh, lp elastomeric nh Fosters 60/95 theo hng dn v khuyn co ca nh sn xut.

4.5 HOT PIPING INSULATION 4.5 BC CCH NHIT CHO NG NG NNG

Mineral wool and polyester Surface finish: - Mineral wool: Factory bonded

aluminium foil laminate. - Polyester: Factory bonded aluminium

foil laminate or integral polyester scrim.

Application: Fit insulation tightly to piping surfaces without gaps. Close butt ends of insulation sections. Minimise number of joints. If the insulation is in half-sections, make only half-circumferential joints at any one place. Seal longitudinal seams in foil laminate and fix insulation at maximum 500 mm centres with polypropylene, zinc-coated steel or aluminium straps.

Bng len khong v polyester B mt hon thin: - Bng len khong: c lp mng nhm

dn ti nh my. - Polyester: mng nhm dn ti nh

my hoc tch hp vi lt polyester. S dng: t cch nhit tip xc tht st vo b mt ng. Lm kn u cui bng on cch nhit.Gim thiu mi ni. Nu ch cch nhit mt na mt, ch ni na chu vi mt v tr. Lm kn cc ng ni theo chiu di ca lp mng v c nh lp cch nhit khong cch tm ti a 500mm bng dy polypropylene, thp trng km hoc nhm.

4.6 PIPE SUPPORTS 4.6 CHI TIT TREO NG

Insulated pipe General: Provide supports formed to fit around the insulation. Protection: - Replace the insulation at the support

point with a shaped insulation spacer block. For chilled water insulation systems, the insulation block shall be high density plastic insulation, suitable and designed for the purpose. See more detail at www.bindereng.com. Wooden blocks are not permitted for chilled water insulation systems, though may be used for hot water insulation systems.

Butt the insulation up to the insulation block and seal with silicone compound. Clad the block and insulation in 0.5 mm zinc-coated steel sheet extending 100 mm each side of the support.

ng c cch nhit Tng qut: S dng gi c hnh dng ph hp lp va vi xung quanh lp cch nhit. Bo v: - Thay th lp cch nhit gi

bng khi m cch nhit to hnh. Dv h thng cch nhit ng nc lm lnh, khi cch nhit phi l nha do n hi t trng cao hoc cch nhit phenolic, ph hp v c thit k lm gi . Xem thm trang web: www.bindereng.com. Khng c php s dng khi g ng nc lm lnh, mc d c th s dng cho h thng cch nhit nc nng.

t t lp cch nhit vo khi cch nhit v lm kn bng ho cht silicone. Bao che khi cch nhit li bng tm thp trng km dy 0,5mm di ra 100mm mi bn ca gi .

4.7 SHEATHING OF PIPING INSULATION

4.7 V BAO CHE CHO LP CCH NHIT NG NG

Location Provide metal sheathing to all piping insulation: - In plant rooms. - In basements.

V tr Thc hin bao che kim loi cho tt c cc cch nhit ng ng : - Trong phng my t thit b. - Trong tng hm.




- Exposed to weather. - Subject to mechanical damage. - On valves, pipeline components and

pumps in sheathed pipework.

- Ni l ra ngoi tri. - C th b h hng c hc. - Cho van, ph kin trn ng ng v

bm gn trn ng ng c bao che kim loi.

Metal sheathing Material: Zinc-coated steel, 0.55 mm minimum thickness. Installation: Cut and roll the metal sheathing to the correct size. Lap longitudinal and transverse joints a minimum of 40 mm and arrange longitudinal laps to shed water. Cone down at terminations and transitions. Fixing: Select from the following: - Clamp sheathing at 500 mm maximum

centres with 12 x 0.55 mm zinc-coated steel straps.

- Fix sheathing with screws or rivets at 150 mm maximum centres. Do not penetrate the vapour barrier. Protect the vapour barrier with reinforced cloth tape.

Bends: Provide pre-drilled lobster back bends containing at least 3 segments. Provide mitred elbows where the size of the piping or the radius of pipe bends does not allow the use of segmented bends. Provide each segment with an inner and outer swage formed at the transverse edges. Fix longitudinal joints with pop rivets of correct length so that the vapour barrier is not damaged. Further protect insulation vapour barrier with reinforced cloth tape where pop rivets are installed. Weatherproofing: Weatherproof external joints and fixings with silicone sealant. Serviceable items: Provide removable boxes or cover plates to equipment requiring maintenance. Provide proprietary toggle action catches for removable boxes. The following equipment requires maintenance: - Insulated strainers. - Valves at pumps. - Flow regulating valves. - Control valves. - Flexible connections. - Demountable joints. - Flow measuring devices.

Bao che kim loi Vt liu: thp m km, dy ti thiu 0,55mm. Lp t: Ct v cun tm kim loi theo kch thc yu cu. Chng m theo chiu dc v mi ni ngang ti thiu 40mm v lp t sao cho mi ni ngang c tc dng kn nc. Lm thnh hnh nn chp xung u cui v ni chuyn tip. Lp t: chn trong cc cch sau: - Kp lp kim loi bao che khong

cch tm ti a 500mm bng dy thp trng km 12 x 0,55mm.

- C nh lp kim loi bao che bng vis hoc rivet khong cch tm ti a 150mm. Khng lm lng lp ngn m. Bo v lp ngn m bng bng keo vi tng cng.

ng cong: S dng cc tm cong khoan l trc cha t nht 3 phn on ghp li. S dng cc co vung ni kch thc ng hoc bn knh ca ng cong khng cho php s dng ng cong chia on. Mi phn on c phn rnh rp khun bn trong v bn ngoi theo cnh ni ngang. C nh cc mi ni doc bng rivet c chiu di thch hp khng lm h lp ngn m. Bo v thm cho lp ngn m bng bng keo vi tng cng ni s dng rivet. Chng nc: Chng nuc cho cc mi ni v chi tit kp, c nh ngoi tri bng cht trt kn silicone. Cc chi tit cn kim tra, bo tr: Thc hin hp tho ri c v tm np y cho cc thit b i hi bo tr. S dng cht kho kiu tc ng n khy nguyn b mua sn cho hp ny. Cc thit b sau y i hi bo tr: - Cc b lc ch Y c bc cch nhit. - Cc van ti my bm. - Van iu chnh lu lng - Van iu khin - Mi ni tho lp - Thit b o lu lng.




4.8 TANK AND VESSEL INSULATION

4.8 CCH NHIT CHO BN / BNH CHA

Cold (< 20C) tanks Material: Nitrile rubber..

Bn nc lnh (< 20C) Vt liu: Cao su Nitrile.

Hot ( 20C) tanks Material: Mineral wool or polyester blanket.

Bn nc nng ( 20C) Vt liu: tm bng len khong hoc polyester.

Removable covers Provide removable insulated covers, attached with proprietary toggle action catches or self-tapping screws, to serviceable items.

Np tho lp Lp t np tho lp, c cht kho kiu tc ng n khy nguyn b mua sn cho hp ny hoc vis t rencho cc thit b i hi bo tr.

4.9 COLD TANK AND VESSEL INSULATION

4.9 CCH NHIT CHO BN / BNH CHA LNH

Elastomeric foam insulation Adhere to total area of tank. Oversize at butt joints so that insulation is under compression. Seal joints with adhesive.

Cch nhit bng bt xp n hi Dn ln ton b b mt bn cha. Tng kch thc ln ch mi ni di u lp cch nhit trng thi b nn. Lm kn mi ni bng keo dn.

4.10 HOT TANK AND VESSEL INSULATION

4.10 CCH NHIT CHO BN / BNH CHA NNG

Method General: Wrap insulation around the whole of the tank or vessel with joints tightly butted. Installation: Form ends with cut segments of insulation to match the contours of the tank or vessel. Fixing: 12 x 0.55 mm zinc-coated steel straps at 500 mm maximum centres.

Phng php Tng qut: Qun tm cch nhit xung quanh ton b bn hay bnh cha vi cc mi ni t st nhau tht kn. Lp t: u cui bn, to hnh cc phn on bng cch ct ghp lp cch nhit m st vi bin dng ca bn/ bnh cha. C nh: dy thp trng km 12 x 0,55 mm khong cch tm ti a 500mm.

4.11 SHEATHING OF TANK AND VESSEL INSULATION

4.11 V BAO CHE CHO LP CCH NHIT CA BN V BNH CHA

Metal sheathing Material: 0.55 mm (minimum) zinc-coated steel sheet. Installation: Cut and roll metal sheathing to the correct sizes. Lap longitudinal and transverse joints a minimum of 40 mm and arrange longitudinal laps to shed water, with exposed edges swaged. Fixing: Clamp sheathing with 12 x 0.55 mm zinc-coated steel straps at 500 mm maximum centres. Weatherproofing: Weatherproof external joints and fixings with sealant.

Bao che kim loi Vt liu: thp trng km dy ti thiu 0,55mm Lp t: Ct v cun tm kim loi theo kch thc yu cu. Chng m theo chiu dc v mi ni ngang ti thiu 40mm v lp t sao cho mi ni ngang c tc dng kn nc, vi cnh rp khun l ra. C nh: Kp lp kim loi bao che khong cch tm ti a 500mm bng dy thp trng km 12 x 0,55mm. Chng nc: Chng nuc cho cc mi ni v chi tit kp, c nh ngoi tri bng cht trt kn silicone.




4.12 FLUE AND EXHAUST PIPE INSULATION

4.12 CCH NHIT CHO NG HI V NG KHI

General Insulate the full length of flues or exhausts within buildings.

Tng qut Cch nhit ton b chiu di ca ng hi/ ng khi trong phm vi to nh.

Insulation Material: Mineral wool, suitable for temperatures up to 260C. Maximum thermal conductivity: 0.036 W/m.K at 20C. Minimum thickness: 50 mm.

Cch nhit Vt liu: bng len khong, tng thch nhit n 260C. dn nhit ti a: 0.036 W/m.K 20C. Chiu dy ti thiu: 50mm

Application Wrap insulation around flues or exhausts. Hold in place with 12 x 0.55 mm zinc-coated steel straps at 600 mm maximum centres.

S dng Qun tm cch nhit xung quanh ng hi/ ng khi. Gi cht bng dy thp trng km 12 x 0,55mm khong cch tm ti a 600mm.

Sheathing General: Sheath insulation. Sheathing not exposed to weather: 0.55 mm (minimum) zinc-coated steel sheet. Sheathing exposed to weather: 0.55 mm (minimum) zinc-coated steel sheet or 0.8 mm (minimum) aluminium sheet. Joints: Lap joints in sheathing at least 30 mm and rivet or screw at 150 mm maximum centres. Edges: Neatly cut around nozzles and cone down to flanges. Terminations: At terminations, return edges of sheathing to protect edges of insulation.

Bao che kim loi Tng qut: Phi thc hin bao che kim loi cho lp cch nhit. Bao che kim loi khng l ra ngoi tri: tm thp m km dy ti thiu 0,55mm hoc tm nhm dy ti thiu 0,8mm. Mi ni: Chng m mi ni kim loi bao che ti thiu 30mm v bt rivet hay vis khong cch tm ti thiu 150mm. Cnh: ct gn xung quanh l v to hnh nn chp xung mt bch. Ch kt thc: Lt cnh tm kim loi bao che li bo v cnh ca lp cch nhit.

Date post:	23-Nov-2015
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B.30 Mechanical Piping Insulation - VN - Centrepoint

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