The Cherne 10" Iron Grip Bypass Plug (part #268-108) is a heavy-duty cast iron mechanical test plug with 1/2" NPT bypass for 10" sewer and storm pipe. Rated for 3.5 PSI / 8 ft. head pressure. Fits 10" pipe (usage range 9.8"–10.2" ID). At 23 lbs and 17" long, this is a two-person plug designed for large municipal pipe. Cast iron body with natural rubber O-ring seals round and out-of-round pipes.

Key Features

Cast iron construction — heavy-duty durability for repeated field use
1/2" NPT threaded bypass — controlled flow-through during testing
3.5 PSI / 8 ft. head pressure — rated for low-pressure water and air tests
Natural rubber O-ring — seals round and out-of-round pipes
Large wing nut design — easy, tool-free installation and superior sealing

Technical Specifications

Cherne Part Number	268-108
Nominal Pipe Size	10"
Usage Range (Pipe ID)	9.8–10.2"
Bypass Size	1/2" NPT
Max Back Pressure	3.5 PSI
Max Head Pressure	8 ft.
Body Material	Cast iron
Seal	Natural rubber O-ring
Hardware	Large wing nut (tool-free)
Body Length	17"
Weight	23 lbs
Pipe Compatibility	Round and out-of-round sewer and drain pipe

Applications

Low-pressure bypass plugging on 10" sewer mains, temporary blocking during major pipe repairs, and flow diversion on municipal storm systems. The 3.5 PSI max rating makes this a low-head application plug. For higher pressure at 10", consider the T-Handle Gripper with Bypass (10 PSI) or the I-Series Muni-Ball.

Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — same-day shipping on in-stock items, tax-exempt purchasing for qualified accounts.

Enchufe de derivación de hierro Cherne de 10", 3,5 PSI, ½" de derivación