Full Flow Drain Valve for Water Heater, Brass

Rheem AP16830D Drain Valve – OEM Full-Flow Ball Valve for Tank Drainage

The Rheem AP16830D is a factory-authorized drain valve featuring a full-port ball valve design for efficient tank drainage. Constructed with corrosion-resistant materials, it is engineered for use in gas and electric water heaters requiring periodic draining for maintenance, sediment flushing, or decommissioning. The AP16830D supports full-bore internal flow to reduce drain times and facilitate routine service procedures.

Product Function & Use Case

This valve provides a reliable shut-off and discharge mechanism at the tank’s lower drain port. The full-flow profile ensures maximum throughput, minimizing downtime during scheduled maintenance or flushing cycles. The ball valve mechanism offers positive shutoff with minimal wear over repeated use. Designed for Rheem and compatible models, it meets OEM dimensional and material specifications.

Technical Specifications

• Model Number: AP16830D
• Valve Type: Full-port ball valve
• Material: Corrosion-resistant brass body and handle
• Thread Size: 3/4” NPT Male
• Connection Method: Threaded tank fitting (bottom drain outlet)
• Operating Method: Manual quarter-turn handle

Installation Requirements

Installation should be performed with the system depressurized and isolated. Use thread sealant or Teflon tape to ensure leak-free connections. Apply torque in accordance with manufacturer guidelines to avoid tank fitting damage. Ensure valve handle orientation is clear of obstructions for safe operation. For replacements, flush any residual sediment before removal of the existing valve. Installation must comply with applicable plumbing codes and safety regulations.

Contractor Use & Field Application

Commonly used during routine maintenance to flush scale and sediment from the bottom of the tank, the AP16830D is a standard replacement valve in service kits for both preventive and corrective maintenance. Stocking this component is recommended for plumbing and mechanical contractors servicing Rheem systems in residential or light commercial installations.