$5 Industrial Mechanical Valve Pneumatic Actuator 3D model by arslanarif. Available on CGTrader with 797127 polys and 800375 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 28.9 MB), OBJ (OBJ, filesize: 90.1 MB), FBX (Autodesk FBX, filesize: 31.3 MB), GLTF (glTF, filesize: 26.6 MB), STL (Stereolithography, filesize: 76 MB)