diff --git a/aioesphomeapi/client.py b/aioesphomeapi/client.py
index 4ca1e29..26210ef 100644
--- a/aioesphomeapi/client.py
+++ b/aioesphomeapi/client.py
@@ -1164,17 +1164,13 @@ class APIClient:
         position: float | None = None,
         stop: bool = False,
     ) -> None:
-        connection = self._get_connection()
         req = ValveCommandRequest(key=key)
-        apiv = self.api_version
-        if TYPE_CHECKING:
-            assert apiv is not None
         if position is not None:
             req.has_position = True
             req.position = position
         if stop:
             req.stop = stop
-        connection.send_message(req)
+        self._get_connection().send_message(req)
 
     def media_player_command(
         self,
diff --git a/aioesphomeapi/core.py b/aioesphomeapi/core.py
index e50360b..ab33c69 100644
--- a/aioesphomeapi/core.py
+++ b/aioesphomeapi/core.py
@@ -372,6 +372,6 @@ MESSAGE_TYPE_TO_PROTO = {
     105: TimeCommandRequest,
     106: VoiceAssistantAudio,
     109: ListEntitiesValveResponse,
-    110: ValveCommandRequest,
-    111: ValveStateResponse,
+    110: ValveStateResponse,
+    111: ValveCommandRequest,
 }
diff --git a/aioesphomeapi/model.py b/aioesphomeapi/model.py
index 0baf291..87de4a3 100644
--- a/aioesphomeapi/model.py
+++ b/aioesphomeapi/model.py
@@ -756,10 +756,10 @@ class LockEntityState(EntityState):
 # ==================== VALVE ====================
 @_frozen_dataclass_decorator
 class ValveInfo(EntityInfo):
+    device_class: str = ""
     assumed_state: bool = False
     supports_stop: bool = False
     supports_position: bool = False
-    device_class: str = ""
 
 
 class ValveOperation(APIIntEnum):
@@ -777,9 +777,6 @@ class ValveState(EntityState):
         default=ValveOperation.IDLE, converter=ValveOperation.convert
     )
 
-    def is_closed(self) -> bool:
-        return self.position == 0.0
-
 
 # ==================== MEDIA PLAYER ====================
 class MediaPlayerState(APIIntEnum):