Can anyone tell me which manufacturer makes a 316 SS ball valve (or gate valve) that is NSF 61 certified (or UL tested to NSF 61 standards) for potable water service ?
Thanks
Can anyone tell me what is the expected life of fusion bond epoxy per AWWA C213 and coal tar enamel per AWWA C203 ? These coatings will be applied to the internal of a water pipe. The atmospheric temperature can vary between 0 and 30 C, though the water temperature variation will be less...
Can anyone tell me how accurate are durometer readings on rubber lined pipe ?
According to ASTM D2240, durometer hardness test should be performed on FLAT and parallel surfaces "to permit the presser foot to contact the specimen over an area of at least 6 mm (0.24") from the indentor point". All...
Does any one know what happened to the ASTM Standard
D3486 - Standard Practice for Installation of Vulcanizable Rubber Tank Linings and Pipe Linings ?
I've got an old specification referencing this standard but cannot find it on the latest ASTM list. Is there a replacement for this standard ?
Does any one know what happened to the ASTM Standard
D3486 - Standard Practice for Installation of Vulcanizable Rubber Tank Linings and Pipe Linings ?
I've got an old specification refering to this standard but cannot find it on the latest ASTM list. Is there a replacement for this standard ?
Does anyone has corrosion data of copper alloys in very dilute sodium cyanide solution (<20 ppm)?
From all the literature I've seen, copper alloys are not suitable for sodium cyanide solution, however there is no information on such low concentrations.
My specific problem is whether backflow...
