Industrial BLX V100 Electro-Pneumatic Valve Positioner

The BLX V100E Electro-Pneumatic Valve Positioner is a compact, modular device that converts a 4-20 mA control signal into precise pneumatic pressure to position a valve actuator, compatible with single- or double-acting rotary or linear actuators. The V100E accepts a 4-20 mA input (no separate transducer required) and drives the actuator from a supply pressure range of 21.8–145 psi (0.15–1 MPa). Key performance specs include linearity <1.0% of full scale, hysteresis <0.6% f.s., and repeatability <0.5% f.s., with independent zero and span adjustments and external zeroing for straightforward calibration. At 29, 87, and 145 psi supply, air capacity is 270, 800, and 1350 SL/min (about 9.5, 28.3, and 47.1 SCFM), while bleed rates are 0.2, 0.6, and 1.0 SCFM (5.7, 17.0, 28.3 SLPM) respectively. The unit is built for demanding environments, featuring NEMA 4X and IP66 ingress protection and a durable polyester powder coating. Standard hardware includes 1/4" NPT air connections (G threads optional), 1/2" NPT or M20x1.5/G13.5 cable entry options, and a body weight around 3.8 lb (1.7 kg) (4.2 lb/1.9 kg with gauges). Front options comprise a 60°-60° cam, a raised indicator, and NAMUR drive compatibility (D2-1/2" square), with variants available for explosion-proof or fail-safe configurations. In process-control contexts, the BLX V100E provides reliable, adjustable positioning for industrial valve actuation and is suitable for both rotary and linear actuators in harsh environments.