Burkert Type 2051 Pneumatic Rotary Actuator, Single-Acting, Size 450 (214536)

The Burkert 2051 size 450 (article 214536) is a single-acting (spring return) pneumatic rotary actuator, control function A, for operating ball valves and butterfly valves through 90 degrees.

At 6 bar pilot pressure it delivers 324 Nm at the 0 degree position and 213 Nm at 90 degrees (281/169 Nm at 5.5 bar, 498/386 Nm at 8 bar). Spring torque is 309 Nm and 198 Nm, and it weighs 17 kg. The ISO 5211 and NAMUR interfaces take standard valves and accessories, including the Type 1061 position feedback unit and the 8791, 8792 and 8793 SideControl positioners. The 2051 series meets ATEX 2014/34/EU.