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 new kind of construction, 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. The design not only simplifies the process of pigging, it also increases safety.
The new design also allows other applications, such as the use of a sieve basket filter. Other options include the use of check valves in the ball, the insertion and removal of measuring equipment, or the placement of control wheel to throttle the flow. The innovative design allows many other applications and is also suitable for hydrogen.
Hartmann Valves pigging ball valves combine the advantages of the metallic sealing ball valve and in addition to classic applications function as shut-off valves for pigging insertion or removal valves.
The advantages at a glance:
- Shut-off valve and pigging/scraper station in one
- Pigging station for launch and receiving
- Space- and cost-saving substitution for expensive pig trap systems
Hartmann pig valves offer a space- and cost-saving substitution for expensive pig trap systems. In addition to the classic application as a shut-off valve, the pig ball valve functions as a pig launcher and receiver.
A laterally integrated lock gate, which is locked and secured by a bayonet system, allows pigs to be inserted and removed easily, quickly and safely.