diff --git a/lua/entities/gmod_subway_81-717_mvm/cl_init.lua b/lua/entities/gmod_subway_81-717_mvm/cl_init.lua
index ed390f8..3a294dc 100644
--- a/lua/entities/gmod_subway_81-717_mvm/cl_init.lua
+++ b/lua/entities/gmod_subway_81-717_mvm/cl_init.lua
@@ -2087,6 +2087,21 @@ ENT.ButtonMap["AirDistributor"] = {
     }
 }
 
+ENT.ButtonMap["AutostopValve"] = {
+    pos = Vector(365.8,-67.6,-56),
+    ang = Angle(0,0,90),
+    width = 130,
+    height = 40,
+    scale = 0.1,
+    hideseat=0.1,
+    hide=true,
+    screenHide = true,
+
+    buttons = {
+        {ID = "AutostopValveSet",x=0,y=0,w= 130,h = 40,tooltip="Сорвать срывной клапан"},
+    }
+}
+
 for i=0,4 do
     ENT.ClientProps["TrainNumberL"..i] = {
         model = "models/metrostroi_train/common/bort_numbers.mdl",
@@ -3190,8 +3205,8 @@ function ENT:Think()
     --self:SetSoundState("rolling_medium1",0 or rol40*rollings,rol40p) --57
     self:SetSoundState("rolling_high2"  ,rol70*rollings,rol70p) --70
 
-    self.ReleasedPdT = math.Clamp(self.ReleasedPdT + 2*(-self:GetPackedRatio("BrakeCylinderPressure_dPdT",0)-self.ReleasedPdT)*dT,0,1)
-    local release1 = math.Clamp((self.ReleasedPdT-0.1)/0.8,0,1)^2
+    self.ReleasedPdT = math.Clamp(self.ReleasedPdT + 2*(-self:GetPackedRatio("BrakeCylinderPressure_dPdT",0)-0.8*self.ReleasedPdT)*dT,0,1)
+    local release1 = math.Clamp((1.1*self.ReleasedPdT-0.1)/0.32,0,8)^2
     self:SetSoundState("release1",release1,1)
     self:SetSoundState("release2",(math.Clamp(0.3-release1,0,0.3)/0.3)*(release1/0.3),1.0)
     local parking_brake = self:GetPackedRatio("ParkingBrakePressure_dPdT",0)
@@ -3409,6 +3424,9 @@ function ENT:DrawPost()
     self:DrawOnPanel("AirDistributor",function()
         draw.DrawText(self:GetNW2Bool("AD") and "Air Distributor ON" or "Air Distributor OFF","Trebuchet24",0,0,Color(0,0,0,255))
     end)
+    self:DrawOnPanel("AutostopValve",function()
+        draw.DrawText("Autostop Valve", "Trebuchet24",0,6,Color(0,0,0,255))
+    end)
 end
 
 function ENT:OnButtonPressed(button)
diff --git a/lua/entities/gmod_subway_81-717_mvm/init.lua b/lua/entities/gmod_subway_81-717_mvm/init.lua
index 09fc955..241a84b 100644
--- a/lua/entities/gmod_subway_81-717_mvm/init.lua
+++ b/lua/entities/gmod_subway_81-717_mvm/init.lua
@@ -200,6 +200,10 @@ function ENT:Initialize()
             ID = "AirDistributorDisconnectToggle",
             Pos = Vector(-177, -66, -50), Radius = 20,
         },
+        {
+            ID = "AutostopValveToggle",
+            Pos = Vector(377, -66, -50), Radius = 20,
+        },
     }
 
     local vX = Angle(0,-90-0.2,56.3):Forward() -- For ARS panel
diff --git a/lua/metrostroi/systems/sys_81_717_pneumatic.lua b/lua/metrostroi/systems/sys_81_717_pneumatic.lua
index 307ccd2..5a7538c 100644
--- a/lua/metrostroi/systems/sys_81_717_pneumatic.lua
+++ b/lua/metrostroi/systems/sys_81_717_pneumatic.lua
@@ -175,8 +175,13 @@ function TRAIN_SYSTEM:TriggerInput(name,value)
         local HaveUAVA = not self.Train.SubwayTrain or not self.Train.SubwayTrain.ARS or not self.Train.SubwayTrain.ARS.NoUAVA
         if HaveUAVA and self.Train.UAVA.Value == 0 then
             self.EmergencyValve = true
-            self.Train.UAVAC:TriggerInput("Set",0)
-            if value > 0 then RunConsoleCommand("say","Autostop braking",self.Train:GetDriverName()) end
+            if value ~= 2 then
+				self.Train.UAVAC:TriggerInput("Set",0)
+				if not self.Train.autosaid then
+					self.Train.autosaid = true
+					RunConsoleCommand("say","Autostop braking",self.Train:GetDriverName())
+				end
+			end
         end
     end
 end
@@ -317,7 +322,9 @@ function TRAIN_SYSTEM:Think(dT)
     self.ParkingBrakePressure_dPdT = 0.0
 	self.WorkingChamberPressure_dPdT = 0.0
 
-	self.KM013offset = self.KM013offset or math.random()*0.2 + 5.0		--регулировочное давление
+	local rnd = math.random(1,10)
+	local offs = 0.1
+	self.KM013offset = self.KM013offset or math.Clamp(5.1 + (rnd >= 3 and rnd <= 7 and offs or -offs),5.0,5.2)
 
     -- Reduce pressure for brake line
     self.TrainToBrakeReducedPressure = math.min(self.KM013offset,self.TrainLinePressure) -- * 0.725)
@@ -328,11 +335,10 @@ function TRAIN_SYSTEM:Think(dT)
     local HaveEPK = not Train.SubwayTrain or not Train.SubwayTrain.ARS or not Train.SubwayTrain.ARS.NoEPK
 
     local BLDisconnect,pr_speed = true,1
-	---[[ работа срывного клапана
-	if Train.AutostopValve.Value ~= 0 then
-		if self.BrakeLinePressure > 1.86 then self:TriggerInput("Autostop",1) end
-		Train.AutostopValve.Value = 0
-	end--]]
+	-- работа срывного клапана
+	if Train.AutostopValve.Value > 0 then
+		self:TriggerInput("Autostop",self.BrakeLinePressure > 1.86 and 1 or 2)	--value == 2 — просто открыть срывной клапан без размыкания контактов УАВА
+	end
 
     if self.ValveType == 1 then
         BLDisconnect = Train.DriverValveBLDisconnect.Value > 0
@@ -459,13 +465,14 @@ function TRAIN_SYSTEM:Think(dT)
     if self.EmergencyValveDisable then--and (self.BrakeLinePressure-self.OldBrakeLinePressure)>0.01 then
         self.EmergencyValveDisable=false
         self.EmergencyValve=false
+		Train.autosaid=false
     end
     self.OldBrakeLinePressure = self.BrakeLinePressure
     local leak = 0
     if self.EmergencyValve then
 		local leakst = BLDisconnect and math.max(0.3,math.log(80*self.BrakeLinePressure - 200,3)) or 1.1*(Train:GetWagonCount())*math.Clamp(self.BrakeLinePressure/4,0,1)
         leak = self:equalizePressure(dT,"BrakeLinePressure", 0.0,leakst)--,false,false,10)
-        if (self.BrakeLinePressure < 1.82 or Train.UAVA.Value > 0) then
+        if Train.UAVA.Value > 0 or (self.BrakeLinePressure < 1.82 and Train.AutostopValve.Value == 0) then	--пока держим ЛКМ нажатой, срывной клапан открыт
             self.EmergencyValveDisable = true
         end
         self.Leak = true