"gear operated butterfly valve"

Integrierter Rücklaufsperren-Guss-Anschlagarm-Keilblock, Schwerlast-Rücklaufsperre

DINKONDA GLOBAL Power Plants Special NJ Type Low-speed Contact Type Backstop Integrated Casting Stop Arm Wedge Block Heavy-duty Backstop Device Product Overview The NJ type low-speed contact backstop belongs to the wedge type heavy-duty backstop device, mainly suitable for low-speed operation of ...