Midland Industries SB-300-SP Bottom Hole Strainer 3in Fip

Product Description

The MIDLAND INDUSTRIES SB-300-SP is a rubber bottom hole strainer designed to filter debris at the intake point of a suction line. It mounts at the bottom of a drop pipe or suction hose and uses a perforated rubber body to block solids from entering the line while allowing water to pass freely. The FIP connection provides a standard threaded interface for straightforward installation. With a 3-inch nominal size and 3/8-inch perforations, this strainer suits applications where moderate particle filtration is needed at the source. It weighs 2.64 pounds and is handled by plumbers, irrigation technicians, and fire suppression system installers.

This strainer is used in foot valve and suction strainer applications common to fire hose assemblies, portable pump setups, and water transfer systems. Its bottom hole design draws water from the lowest point of a sump, tank, or open water source, reducing the risk of air entrainment and pump cavitation. The rubber construction provides resistance to corrosion and moderate chemical exposure, making it a practical choice for wet environments where metal strainers may corrode over time.

Key Features

• 3-inch nominal size with FIP threaded connection for standard pipe compatibility
• 3/8-inch perforation size filters debris while maintaining adequate flow
• Rubber construction resists corrosion in submerged and wet service conditions
• Bottom hole design draws from the lowest point of the water source
• Lightweight at 2.64 pounds for easy handling and installation

Compatibility

Designed as an OEM-style replacement or new-installation strainer for 3-inch FIP suction lines in fire hose, portable pump, and water transfer applications.

Installation Notes

Installation is performed by licensed plumbers or fire suppression system technicians following applicable IPC and NFPA guidelines. Isolate and depressurize the line before servicing or replacing the strainer. Use thread sealant appropriate for rubber-to-metal FIP joints and avoid overtightening, which can crack the rubber body. Inspect perforations for clogging periodically, especially in high-sediment environments.