Description
Mechanical Tee (Thread)
ARGCO’s Model 403 Mechanical Tee (Thread) is a fast and efficient fitting designed to provide a mid-pipe threaded branch outlet without the need for welding. This fitting simplifies installation by allowing a hole to be cut or drilled at the desired outlet location and secured using a bolted housing assembly.
Constructed with ductile iron housings, a Grade E EPDM gasket, and heat-treated carbon steel track bolts and nuts, the Model 403 delivers reliable performance in fire protection and general piping systems. :contentReference[oaicite:1]{index=1}
Key Features
- Mechanical tee design provides threaded branch outlet without welding
- Ideal for mid-pipe outlet connections in grooved piping systems
- Rigid connection restricts axial and angular movement
- Maximum working pressure up to 300 psi (20 bar)
- Compatible with Schedule 10 and Schedule 40 carbon steel pipe
- Available in multiple outlet sizes from 2" through 8" mains
- Ductile iron construction per ASTM A536 Grade 65-45-12
- Standard orange enamel coating with optional hot dipped galvanized finish
- Includes Grade E EPDM (Type A) gasket for reliable sealing
- UL, ULC, and FM listed/approved
Typical Applications
Commonly used in fire protection systems and general piping installations where threaded branch outlets are required. Ideal for adding sprinkler drops, gauges, drains, or auxiliary connections without welding existing piping.
Construction Details
Manufactured from ductile iron conforming to ASTM A536 Grade 65-45-12, providing durability and long-term performance. The standard finish is orange enamel, with optional hot dipped galvanizing available for enhanced corrosion resistance. :contentReference[oaicite:2]{index=2}
The assembly includes heat-treated carbon steel track bolts and hex nuts (zinc electroplated per ASTM B633), with optional stainless steel hardware available for demanding environments.
Important Notes
Installation requires cutting or drilling a hole in the pipe to the specified diameter. Nuts should be torqued to approximately 50 ft-lbs (68 N·m) and not exceed 70 ft-lbs (90 N·m), as excessive torque may cause product failure. Always follow ARGCO installation instructions and applicable codes. :contentReference[oaicite:3]{index=3}
