Parallel gate valve is a sliding valve with parallel gate closing parts. The closing member may be a single gate or a double gate with an opening mechanism between them. The pressure on the gate to cast steel valve seat is controlled by the medium pressure acting on the floating gate or floating seat. For double gate parallel gate valves, this pressure can be supplemented by a split mechanism between the two RAMS. W&T parallel gate valves conform to ASME standards to ensure good operation under high temperature and high pressure conditions and provide a wider selection of products.