The PPM Nylon Expanding Pipe Stopper 3 Inch (Model NES75) is an essential tool designed for temporarily sealing pipe ends or openings in various testing and blocking applications. These robust drain plugs are primarily used to seal off water, gases, and foreign objects in newly installed pipes or during repairs of existing pipe work systems. PPM offers a comprehensive range of pipe stoppers, available in multiple styles and sizes, with custom-made options also available for specific pressure testing requirements. This pipe stopper operates on a simple yet effective mechanism: it consists of a central spindle/shaft with two fitted plates, sandwiching a natural rubber tyre (ring). A wing nut on the shaft allows for the compression of these plates, which in turn expands the rubber tyre to create a secure and leak-tight seal within the pipe. Some models are also available with a hollow shaft, enabling connections for standard hoses or the use of fixed or free nipple caps. The Nylon Expanding Pipe Plugs, like the NES75, are the standard choice for testing the leak tightness of foul water lines at the time of installation. Their extensive range of sizes makes them suitable for numerous applications across the water, gas, and other industries where pipes are utilized or where openings need to be blocked. SPECIFICATIONS FOR NES75: • Nominal Pipe Size: 3" / 75 mm • Internal Pipe Diameter Range: 2.91 - 3.38" / 74 - 86 mm • Minimum Insertion Length: 1.4" / 36 mm • Overall Length: 110 mm • Waterway Diameter: 0.5" bsp • Maximum Allowable Back Pressure: 10 psi / 0.7 bar • Weight: 1 lbs / 0.10 kg All PPM Nylon Expanding Pipe Stoppers conform to British Standards BS8005 for low pressure testing and sealing of pipes, ensuring reliability and compliance for professional use.
