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Continue to ChatASCO 833-370001020 - DN6, G1/4, 0-20BAR, 0-10V E Pressure Release On Loss Of Power, Servotronic Proportional Valve https://www.valves-direct.com/product/asco-833-370001020-dn6-g1-4-0-20bar-0-10v-e-pressure-release-on-loss-of-power-servotronic-proportional-valve/