diff --git a/code/modules/atmospherics/machinery/components/binary_devices/relief_valve.dm b/code/modules/atmospherics/machinery/components/binary_devices/relief_valve.dm
index 5835912cd3..bc58ef158f 100644
--- a/code/modules/atmospherics/machinery/components/binary_devices/relief_valve.dm
+++ b/code/modules/atmospherics/machinery/components/binary_devices/relief_valve.dm
@@ -5,6 +5,7 @@
 	icon_state = "relief_valve-t-map"
 	can_unwrench = TRUE
 	construction_type = /obj/item/pipe/binary
+	interaction_flags_machine = INTERACT_MACHINE_OFFLINE | INTERACT_MACHINE_WIRES_IF_OPEN | INTERACT_MACHINE_ALLOW_SILICON | INTERACT_MACHINE_OPEN_SILICON | INTERACT_MACHINE_SET_MACHINE
 	var/opened = FALSE
 	var/open_pressure = ONE_ATMOSPHERE * 3
 	var/close_pressure = ONE_ATMOSPHERE
@@ -50,9 +51,11 @@
 	if(!is_operational())
 		return
 
-	var/datum/gas_mixture/air_contents = airs[1]
-	var/our_pressure = air_contents.return_pressure()
-	if(opened && our_pressure < close_pressure)
+	var/datum/gas_mixture/air_one = airs[1]
+	var/datum/gas_mixture/air_two = airs[2]
+	var/air_one_pressure = air_one.return_pressure()
+	var/our_pressure = abs(air_one_pressure - air_two.return_pressure())
+	if(opened && air_one_pressure < close_pressure)
 		close()
 	else if(!opened && our_pressure >= open_pressure)
 		open()
diff --git a/code/modules/atmospherics/machinery/components/unary_devices/relief_valve.dm b/code/modules/atmospherics/machinery/components/unary_devices/relief_valve.dm
index 9da9e49e01..4b6a4a4c10 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/relief_valve.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/relief_valve.dm
@@ -4,6 +4,7 @@
 	icon = 'icons/obj/atmospherics/components/relief_valve.dmi'
 	icon_state = "relief_valve-e-map"
 	can_unwrench = TRUE
+	interaction_flags_machine = INTERACT_MACHINE_OFFLINE | INTERACT_MACHINE_WIRES_IF_OPEN | INTERACT_MACHINE_ALLOW_SILICON | INTERACT_MACHINE_OPEN_SILICON | INTERACT_MACHINE_SET_MACHINE
 	var/opened = FALSE
 	var/open_pressure = ONE_ATMOSPHERE * 3
 	var/close_pressure = ONE_ATMOSPHERE