This document provides specifications for various models of three valve manifolds, including the 3VM, 3VQ, 3VH, 3VD, 3VA, 3VF, 3VP, and 3VO. The models have different configurations of inlet and outlet port locations and thread or flange connections. They are made of stainless steel and have isolating and equalizing bonnets to isolate and vent process media. Standard materials, pressures and temperature ratings, connections sizes and optional features are provided to order a manifold by referring to codes in tables.