Velan produces an extensive line of gate valves such as cast steel valves, corrosion resistant valves, knife gate valves, pressure seal and bolted bonnet valves, and small forged valves. Cast steel valves accommodates a bellows assembly. Corrosion resistant valves features a flanged and socket weld/threaded design. Knife gate valves includes a line of bolted bonnet metal seated gate valves, bolted bonnet resilient seated knife gate valves, standard metal seated knife gate valves, and standard resilient seated knife gate valves. Line of pressure seal and bolted bonnet valves accommodated designs with bolted bonnets, seals (bellows, pressure), flexible wedges, bolted covers, parallel slides, tilting disc, and piston. Small forged valves features designs with bellows seal, cryogenic, extended body bellows seal, and extended body.