• O le a le DZR Brass?
• O le a le Dezincification?
• DZR Brass Grades and Compositions
• Tulaga Fa'atonu ma Tulafono Fa'atonu
• Fa'ailoga Manaoga mo DZR Fittings
• Metotia Su'ega mo DZR Brass
• Tulaga lelei ole DZR Brass Valves
• BMAG DZR Valves 'apamemea

Dezincification Resistant Brass (DZR apamemea) ua avea ma mea taua i le fale paipa, aemaise lava mo fa'aoga valve. Le numera o tagata faʻaoga filifilia Valves apamemea DZR ua faateleina, o lo'o fa'ailoa mai ai o lo'o fa'atupula'ia pea manaoga o tagata lautele mo le lelei o le vai ma mea e fa'aogaina ai le valve.

O le a le DZR Brass?

Dzr apamemea(Tete'e Dezincification) ose apamemea fa'apitoa fa'akomepiuta fa'ainisinia e tete'e ai le dezincification, ose faiga a'a e malaia apamemea tulaga i nisi siosiomaga.

O le a le Dezincification?

Dezincification, po'o le fa'amama o le zinc, e tupu pe a filifilia le zinc mai le apamemea, tuua ai se porous.

O le faʻalavelave faʻaleagaina i totonu o le apamemea e fesoʻotaʻi vavalalata ma mea o loʻo i totonu o le zinc o loʻo i totonu o apamemea-zinc alloys.. Masani lava, pe a o'o i lalo le mea o iai le zinc 15%, e le mafai ona tupu le pala o le dezincification; ae ui i lea, o lo'o fa'afefeteina le fa'afefe o le u'amea. O le fa'ateleina o le zinc e mafai ona fa'aleleia uma le malosi ma le tafia o le u'amea, ae e siitia ai foi le tulaga lamatia o dezincification corrosion.

Pe a sili atu le zinc content 20%, o le zinc e mafuli lava e solo i vaifofo vai. O lenei faagasologa e tuua ai le fausaga apamemea porous, e oo atu ai i le faaitiitia o le malosi o le apamemea.

O le dezincification o apamemea e sili atu ona tupu i le sami ma vaifofo o loʻo iai masima, pei ole NaCl ma le CuCl₂.

O le faiga tetee i le DZR apamemea e maua e ala i le puleaina o le tuufaatasiga o mea faʻapipiʻi. Fa'aofia ai ni vaega laiti o elemene e pei ole As/Sb/P/B/Al ma se lalolagi seasea, ma le fa'atumauina o fua fa'atatau apamemea-i-zinc, fai se u'amea e fa'agata lelei ai le fa'amamaina o le zinc i tulaga vai.

DZR Brass Grades and Compositions

Vasega 'apamemea masani

CW602N/CZ132(CuZn36Pb2As):
Cw724r (CuZn21Si3P):
Cw511l (CuZn38As):

Tulaga Fa'atonu ma Tulafono Fa'atonu

O atunuʻu eseese ma itulagi ua faʻatuina tulaga mo le DZR apamemea ma lona faʻaogaina i valve:

Iuni a Europa: I totonu 12165 (Kopa ma kopa alumea – Fa'atauga fa'amea ma le le fa'aaogaina)
Malo tupu: Bs en 12165, BS 6920 (Talafeagai o oloa e le u'amea mo le fa'aoga i le fa'afeso'ota'i ma le vai fa'amoemoe mo le taumafaina e tagata)
Ausetalia/Niu Sila: AS/NZS 4020 (Su'ega o oloa mo le fa'aogaina e fa'afeso'ota'i ma vai inu)
Amerika Tele: ASTM B124 (Fa'amatalaga Fa'asinomaga mo Kopa ma Copper Alloy Forging Rod, Pa, ma Fa'atusa), NSF / ANSI 61 (Vaega o Faiga Suavai – Aafiaga ole Soifua Maloloina)
Fa'ava-o-malo: Iso 6509 (A'a o u'amea ma u'amea – Fuafuaga o le dezincification teteʻe o apamemea apamemea ma le zinc)

Fa'ailoga Manaoga mo DZR Fittings

O atunuʻu eseese e iai manaʻoga faʻapitoa mo le makaina o mea faʻapipiʻi apamemea DZR:

O mea fa'apipi'i paipa e fa'asa'o i le fa'amama e fa'ailoga lelei, ma mataitusi “CR” (Tetee o le pala) po'o le DZR (dezincification tetee) i Peretania, ma tusi “DR” (dezincification tetee) i Ausetalia.

Metotia Su'ega mo DZR Brass

O le metotia muamua o suʻega mo DZR apamemea o loʻo faʻamatalaina i le ISO 6509:

① Fa'ata'ita'iga sauniuniga: O fa'ata'ita'iga e fa'apololei ma fa'amama.

② Fa'aaliga: O fa'ata'ita'iga o lo'o fa'atofuina i se vaifofo kopa chloride i le vevela maualuga (masani lava 75°C) mo se vaitaimi ma'oti (masani lava 24 itula).

③ Fua: Uma ona a'afia, fa'ata'ita'iga o lo'o va'ava'ai ma fua le loloto o le dezincification e fa'aaoga ai metotia fa'a microscopy.

④ Iloiloga: O le loloto o le dezincification e faʻatusatusa i tapulaʻa faʻapitoa, masani ona itiiti ifo 200 micrometers mo se su'ega 24 itula.

Tulaga lelei ole DZR Brass Valves

Faʻaleleia le faʻafefeteina, ae maise lava e tetee atu i le dezincification

E umi atu le soifua tautua pe a fa'atusatusa i va'a apamemea masani

Fa'atumauina le sa'o lelei o le fa'atulagaga i tulaga fa'afefe vai

Fa'ata'ita'iina o tulafono fa'atonutonu vai inu

BMAG DZR Valves 'apamemea

O valve apamemea DZR o lo'o fa'atusalia ai se alualu i luma taua i tekonolosi paipa, ofo atu le maualuga o le pala ma le umi o le ola i faiga vai. BMAG DZR valve apamemea ma le mea fa'apipi'i faʻaleleia le malosi o faiga faʻaalia i vai e sili ona pala, faʻaitiitia le manaʻomia mo le tausiga faifaipea ma sui vaega.