Sioux Chief 867-P4MU Pvc Roof Drain Cast Iron Dome Strainer

Product Description

The SIOUX CHIEF 867-P4MU is a PVC roof drain assembly designed for commercial and residential roofing applications where reliable surface drainage is required. The unit ships with an enamel-coated cast iron dome strainer that intercepts debris at the drain inlet and an underdeck clamp kit that secures the drain body to the roof deck from below. The PVC body resists corrosion in wet environments, and the cast iron dome provides the durability needed to handle foot traffic and debris loads common on low-slope and flat roofs. Plumbers and roofing contractors install this drain during new construction or re-roofing projects.

This drain is suited for low-slope and flat roof installations on residential and light commercial structures. The underdeck clamp kit allows the drain body to be positively secured to the roof deck membrane or substrate without relying solely on the drain bowl weight. The enamel-coated cast iron dome strainer controls leaf, gravel, and debris entry into the drainage system, reducing the risk of blockages in the horizontal drain lines below. This assembly is intended for use with compatible PVC drain piping systems tied into the building storm drainage network.

Key Features

• PVC drain body resists corrosion and is compatible with standard PVC drain piping
• Enamel-coated cast iron dome strainer provides debris interception at the inlet with added durability
• Included underdeck clamp kit secures the drain assembly to the roof deck from below
• Suitable for low-slope and flat roof drainage applications in residential and light commercial construction
• Complete kit includes drain body, dome strainer, and underdeck clamp hardware

Compatibility

Designed as an OEM-style replacement or new-installation roof drain for flat and low-slope roof drainage systems using PVC drain piping.

Installation Notes

Installation is typically performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and local storm drainage requirements. Ensure the roof membrane is properly flashed and sealed to the drain body flange before securing the underdeck clamp kit. Verify that the drain outlet size matches the connected PVC piping before final assembly. Do not overtighten the underdeck clamp hardware, as excessive force can distort the PVC drain body.

Technical Specifications

• Body Material: PVC
• Strainer Material: Enamel Coated Cast Iron
• Includes: Dome Strainer, Underdeck Clamp Kit
• UPC: 739236373779

Standard Information

• Brand: SIOUX CHIEF
• Manufacturer Part Number: 867-P4MU