NATIONAL DIVERSIFIED SALES INC U-4000-SClick To Copy PVC Union Slip, 4" Schedule 80, Slip Connection

The National Diversified Sales Inc (NDS) U-4000-S is a 4-inch nominal pipe size PVC union slip, engineered from gray Schedule 80 polyvinyl chloride (PVC). This fitting features slip (socket weld) connections on both ends, designed to join two plain-end PVC pipes and allow for convenient disassembly and reassembly without requiring pipe cutting or permanent adhesives. It incorporates an EPDM O-ring to ensure a leak-resistant seal. Suitable for high-pressure applications, this union is used in various cold-water pressure distribution systems, including commercial, industrial, irrigation, pool and spa, and potable water systems. Schedule 80 PVC has thicker walls for enhanced durability and higher pressure ratings compared to Schedule 40. It is compliant with ASTM International D1784 and D2466 standards and is NSF certified for potable water service, meeting NSF/ANSI 14, 61, and 372 standards. This fitting can withstand service temperatures up to 180°F (60°C