dean1973
Active Member
would you choose dzr or stainless steel lever ball valves below water line
dzr or stainless steel
- Thread starter dean1973
- Start date
Porthandbuoy
Well-Known Member
Neither, unless by DZR you mean bronze. Others will probably be along to correct me but I believe DeZincification Brass is just one step up the ladder from ordinary brass.
dean1973
Active Member
dzr lloyds approved for salt water not sure what to fit all veiws welcome
Porthandbuoy
Well-Known Member
Have a look at This
VicS
Well-Known Member
The important aspects are [ QUOTE ]
Provided it is made to correct specification
Dezincification Resistant Brass CW602N (CZ132) is commonly
referred to as DZR brass.
The metal is heated treated and monitored in production to achieve
the strict specification necessary to meet B.S. requirements.
[/ QUOTE ]
Dzr brass is a leaded brass and the heat treatment is the all important factor.
Provided it is made to correct specification
Dezincification Resistant Brass CW602N (CZ132) is commonly
referred to as DZR brass.
The metal is heated treated and monitored in production to achieve
the strict specification necessary to meet B.S. requirements.
[/ QUOTE ]
Dzr brass is a leaded brass and the heat treatment is the all important factor.
dean1973
Active Member
what would you fitt dzr gunmetal or stainless
Salty John
Well-Known Member
DZR (CZ132) or bronze, with chromed ball and neoprene seal. There is some question about the suitability of s/s valves and through hulls as evidenced by the fact that many suppliers specify that they are not suitable for below waterline applications. So why take the chance?
VicS
Well-Known Member
[ QUOTE ]
what would you fitt dzr gunmetal or stainless
[/ QUOTE ] Marelon, made from Dupont's Zytel, a glass reinforced nylon probably but DZR in preference to stainless if below the waterline.
what would you fitt dzr gunmetal or stainless
[/ QUOTE ] Marelon, made from Dupont's Zytel, a glass reinforced nylon probably but DZR in preference to stainless if below the waterline.
oldsaltoz
Well-Known Member
rjp
Well-Known Member
I believe the widely respected Blakes seacocks are made of DZR.
AndrewB
Well-Known Member
True, Blakes are DZR which means they last a bit longer but not forever - I'm not the only one to have had trouble with an old one. But stainless steel would be FAR worse (are there such things?). Phosphor bronze, if you never want to worry about them again. Specially on the heads seacock. But they are not cheap.