Renewed revision of our drain cocks!
In 2015, the ½" drain cocks were technically further developed in an initial phase. Now all other common sizes will follow (see data sheet).
The further development includes a new seal, which means that the drain cocks will withstand significantly higher pressure in the future and are practically maintenance-free - with the same construction dimensions!
A lubricant is used with the previous seals. As this has a thermal dropping point of 180 °C specified by the manufacturer, the plug had to be dismantled and relubricated after being flamed several times. In addition, the self-locking nut had to be replaced.
The new seal is a PTFE packing that does not require lubricant. The pressure load capacity of the drain cock increases from PN 6 to PN 25! The thermal operating limit of the PTFE is 250 °C, although according to the manufacturer 200° C should not be exceeded. By dispensing with a lubricant, the previously necessary disassembly after multiple flaming is no longer required.
Convince yourself, already in a few weeks the first fittings will be available from stock. If you are interested or have a need, please contact your personal contact person.