Gate valve accessories
AVK offers a wide range of valve accessories comprising extension spindles, surface boxes, handwheels, stem caps and t-keys. Extension spindles are used for easy access to operation of valves installed below ground, typically in combination with surface boxes. AVK offers a very comprehensive range of surface boxes in various materials, colours and designs.
Extension spindles for gate valves
Fixed length extension spindles are used when the distance between the valve and the ground surface is known so that only minor adjustment after installation is needed. The patented AVK fixed design facilitates fast and easy shortening of the extension spindle by use of a hacksaw.
Telescopic extension spindles are used when the distance between the valve and the ground surface can vary, and adjustment of the extension spindle may be required after installation. AVK telescopic extension spindles are designed with ears that can be fixed into AVK surface boxes and a lock spring that prevents the telescopic part from collapsing during installation.
Surface boxes
AVK has a wide variety of surface boxes. They are maintenance-free, fully recyclable, sound-absorbing and have the advantage that they do not freeze in winter. The low weight of the plastic surface boxes guarantees easy installation and maximum ease of use. Compared to a cast-iron surface boxes, the manufacturing and transport of plastic surface boxes requires less energy, which means that it has a much lower ecological footprint (CO2 emission).
