Butterfly valvesWafer, lug, double-flanged or grooved butterfly valve: how to chooseHow each body style is fitted, which ones can be used at the end of a line, and how concentric and eccentric designs differ.5 min readGate valvesResilient-seated or metal-seated gate valve: how to chooseRubber or metal seat, rising or non-rising stem, and the face-to-face and flange standards to check before you order.6 min read
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