Lower, constant turning torques comparable to ball valves and significantly lower than other plug valves. Higher temperature capability more comparable to gate and triple-offset butterfly valves (525 Degrees F / 274 Degrees C). Easy seat replacement with valve in-line; no special tooling required. ISO mounting pad. ASME Class 150, 300 and 600 (derated) flanged butt weld, screwed end, socket weld, DIN 25-150 PN 10-16, 25-40,100.