The new Hartmann pigging ball valve with multiple safety barrier to the sluice room enables the safe and easy launching and receiving of pigs even with (residual) pressure in the main line. In this way, complex pigging systems can be replaced, the pigging process simplified and safety significantly increased at the same time.
The sluice room is separately closed off by at least two additionally installed seat rings. Pressure gauges are used to monitor the sluice pressure. If the first barrier of the pipeline to the dead storage is leaking, the second barrier seals against the interlock and the sluice gate can still be closed without danger.
Further application examples:
The sieve basket filters, pig trap grids, check valves (also 180° rotatable) and control wheels can be dismantled and interchanged. The result is a genuine multi-function ball valve that also offers full flow after removal of the respective built-in part.
Many other applications can be realised and are also available for the medium hydrogen.
Upon request, we can manufacture and supply the following ball valve designs:
DGRL 2014/68/EU and API 6D: DN 50 - DN 600 (2" - 24") up to PN 250 (ANSI 1500) further nominal widths and pressure stages on request!
Hartmann standard pigging ball valves are available as:
In the standard version Hartmann Valves pigging ball valves are designed for a maximum pig length of 1.4 x nominal diameter of the pipe line. Upon request, we are pleased to offer you special constructions for spherical pigs or cylindrical pigs longer than 1.1 to 1.4 x diameter up to a maximum of 2.0 x diameter.
For the insertion or removal of the pig the ball is rotated by 90°, meaning it is rotated into the closed position. Prior to the opening of the interlock the housing interior is depressurized via a release valve, then the bayonet catch is unlocked and opened with a left turn. The pig can now be inserted and removed through the interlock.
An optional bypass in the closed position also enables cleaning if the media flow is not to be completely interrupted. In addition, the pig valve can be used to separate different products in a pipeline. A 3-step redundant safety concept and the metal-to-metal sealing barrier guarantee maximum availability for the operation and cleaning of oil, gas, sludge and water applications.
The innovative pig ball valve concept is already used as a global standard solution by well-known oil companies.
Upon request we manufacture and deliver the ball valves for you:
DGRL 2014/68/EU und API 6D: DN 50 – DN 600 (2“ – 24“) up to PN 250 (ANSI 1500) further nominal widths and pressure stages on request!