With labyrinth sealing, straight flowing, no fluid pressure drop, high switching speed, long lifetime, good sealing performance and size range of DN4-DN100, UL- and CE-certified. (GREENLAND owns the utility patent)
With labyrinth sealing, straight flowing, no fluid pressure drop, high switching speed, long lifetime, good sealing performance and size range of DN4-DN100, UL- and CE-certified. (GREENLAND owns the utility patent)