The Dixon 5000AIRHD is a heavy-duty pneumatic air interlock valve designed with a roller end configuration for tank trailer applications. Constructed with an aluminum body and featuring Baylast seals, this valve provides reliable service in demanding petroleum and chemical transport operations. The roller end accommodates various mounting angles while large air ports ensure high airflow capacity for effective brake system control. The heavy-duty design makes it ideal for severe service applications where increased air flow and durability are required.