Groove Butterfly Valve FAQ: Fit, Parts and Maintenance Planning

The valve is designed with grooves that conform to AWWA C606 Table 4, while its face-to-face dimensions conform to MSS SP-67. Match the valve size and the grooved-piping requirements in your project before ordering. The listed sizes run from 2 to 12 inches.

The available sizes are 2, 2½, 3, 4, 5, 6, 8, 10, and 12 inches. The dimensional table gives size-specific measurements for the body and connection area, so the buyer should compare the selected size with the space available around the pipe and valve.

For example, a maintenance team replacing a valve in a compact plant room should compare the relevant dimensional table with the clearance around the existing piping. This helps avoid selecting a nominal size that fits the pipe but conflicts with nearby equipment.

The valve is available with handles from 2 to 12 inches and with manual gear operators from 2 to 12 inches. Choose the operating arrangement that matches the access and control method of the installation. Include the valve size and operator type in the purchase request so the replacement matches the installed arrangement.

The listed valve assembly includes the body, stem, thrust washer, circlip, stopper, disc, O-ring, bushing, and key. The body can be cast iron or ductile cast iron. Stem options include zinc-plated steel and several stainless steel grades. The disc uses ductile iron with EPDM or NBR rubber, the O-ring uses NBR or EPDM, and the bushing is PTFE.

A maintenance record should therefore identify the valve size, operator, and material choices before a spare-parts request is prepared. This is especially useful when several groove butterfly valves are installed in the same facility.

Record the existing valve size, the operator arrangement, and the required connection dimensions. Then compare the body, stem, disc, O-ring, and bushing materials with the replacement specification. For a valve in an active line, send the supplier the installation dimensions and the required quantity together with these details, so the proposed replacement can be matched to the existing assembly.