Features

Valve parts in contact with the medium undergo strict low-temperature treatment according to the specifications before precision machining to ensure that the valve parts can fully withstand the expansion and contraction caused by temperature changes, and the structure of the valve seat will not undergo permanent deformation due to temperature changes.

Adopting a long neck valve cover structure that can protect the packing box.

Adopting a valve disc that can maintain reliable sealing regardless of temperature changes, the valve disc adopts a conical valve disc, and the upper sealing seat is welded with cobalt chromium tungsten hard alloy structure to avoid stainless steel materials biting each other. The valve seat and valve disc sealing surface are welded with cobalt chromium tungsten hard alloy structure.

The flow direction of the medium is low in and high out (flowing in from the lower end of the valve disc).

The surface of the valve stem is treated with nitriding and hardening to prevent surface scratches during the valve opening and closing process from affecting the sealing performance. Low leakage packing can be selected according to user requirements to ensure that the leakage at the valve packing meets environmental requirements. Welded sleeves can be provided according to user requirements.

Insulation boards (drip boards) can be provided according to user requirements.