The Collins Companies is proud to carry CLAMPSEAL® Globe Valves from Conval. These valves are tailored to the exact requirements of our customers. No other severe service forged valve offers so many options. provides three globe valve body styles, Y, Angle, and T-Pattern, in ASME pressure classes through 4500 and five standard materials. The easy interchangeability of parts means that an entire plant installation can be supported with a very low parts inventory.