Description

A PVC Nipple male thread 1″ is a short pipe with male threads on both ends, used to connect two female-threaded pipes or fittings. They are a common component in plumbing systems for creating secure, corrosion-resistant connections, especially in low-pressure applications.

Types of PVC nipples

• Barrel nipple: The most common type, with male threads at both ends for general-purpose connections.
• Close nipple: Threads extend along nearly the entire length of the pipe, allowing for the shortest possible connection between two fittings.
• Reducing nipple: Connects fittings of two different sizes, featuring male threads of different diameters on each end. For example, a 1-inch to 3/4-inch reducing nipple.
• Cut-off nipple: Designed with grooves, allowing for easy cutting to a custom length. These are often used for irrigation risers.
• TOE (threaded one end) nipple: A pipe threaded at one end only, often used for specific installations such as tank legs.
• Hex nipple: Has a hexagonal section in the middle, allowing for tightening with a wrench.

Common schedules

PVC Nipple male thread 1″ being common for household plumbing. The nipple’s schedule refers to the pipe’s wall thickness and pressure rating. The two most common schedules for PVC are:

• Schedule 40: Has a standard wall thickness and is suitable for most drainage and low-pressure applications.
• Schedule 80: Features a heavier, thicker wall for use in higher-pressure systems.
• Installation guide
• Follow these steps to install a threaded PVC nipple for a leak-proof connection:
• Prepare the threads. Clean the male threads of the nipple and the female threads of the fitting with a wire brush.
• Apply sealant. Wrap 4–5 rotations of Teflon tape (thread-sealant tape) clockwise around the nipple’s threads. For extra security, apply a thread sealant paste designed for use with plastics.
• Join the pieces. Hand-tighten the nipple into the female fitting until it is snug.
• Tighten with a wrench. Use a wrench to make one to two additional turns.
• Avoid over tightening. Be careful not to over tighten, as this can crack the plastic fitting and cause a leak.

Shopping considerations

• Match schedules: Never combine schedule 40 fittings with schedule 80, even if the size is the same. The different wall thicknesses can cause a mismatch in the threads, leading to leaks.
• Match applications: Use standard PVC fittings for water up to 140°F (60°C). For higher temperatures, use CPVC nipples.
• Look for certification: For potable (drinking) water applications, ensure the fittings are certified for safety (e.g., NSF/ANSI 61 certified).