What is a PPR pipe plug actually called?
PPR pipe plugs have several nicknames in the renovation industry: pipe cap, sealing plug, end cap-they're all the same thing! This thumb-sized accessory is specifically used to seal the ends of PPR water pipes, preventing dust from entering or leaking. The name varies by region-northern contractors often call it "pipe plug," while southern contractors prefer "pipe cap," but they all refer to the same thing.
This Small Accessory Has a Big Impact
Don't underestimate the small size of the plug; it's a hidden guardian for plumbing and electrical renovations:
Construction Protection: Temporarily seals exposed pipe openings during renovations, preventing cement residue from clogging the pipes.
System Testing: Seals the end of the pipe during water pressure testing to check its seal.
Aesthetic Finishing: Covers the cut surfaces of exposed water pipes, eliminating the risk of burrs.
Temporary Modification: Quickly seals abandoned water pipe openings; installation requires no special tools.
Purchasing Guide to Avoid Pitfalls
Choosing the right plug can extend the life of your water pipes:
Material Matching: Must be made of PPR material, with the same coefficient of thermal expansion as the water pipe.
Color Identification: White for cold water pipes, red/blue for hot water pipes.
Size Comparison: 20/25/32mm and other sizes must fit the pipe diameter perfectly.
Sealing Test: High-quality plugs have an annular water-stop groove on the inner wall; they won't leak even when tightened by hand.
Emergency Spare Parts: It's recommended to buy 2-3 extra as spares; the price of a single plug is usually less than 1 yuan.
