OATEY 214188 Cherne® I-Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,124.29
$2,074.29
OATEY 214188 Cherne® I-Series Muni-Ball® Plug 12-18 in w/ 3 in Bypass

OATEY 214188 Cherne® I-Series Muni-Ball® Plug 12-18 in w/ 3 in Bypass

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Model: 214188
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,124.29
$2,074.29
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Cherne® I-Series Muni-Ball® Plug 12-18 in w/ 3 in Bypass

  • Features

    • 3/4 in. eyebolts on 15-32 in. and larger plugs
    • Pressure relief valve on 15-32 in. and larger protects plugs from over inflation
    • 48-72 in. & 54-96 in. plugs fit through a 36 in. opening
    • Small deflated diameters
    • Aluminum end plates minimize rust
    • All plugs through 24-60 in. easily fit through a 24 in. manhole frame
    • Full body cording for added durability
    • Superior expansion range
    • Flexible bypass hoses

Manufacturer Resources

Product Specs

Bypass Diameter:
3 in. M
Chain Eye Bolts:
0.25 in. Eyenut
Deflated Diameter:
10.5 in.
Deflated Length:
25 in. (635 mm)
Inflation Pressure:
45 psi (3 bar)
Inflation Thread:
1/4 in.
Maximum Back Pressure:
15 psi (1 bar)
Volume:
3
Department:
Plumbing
Product Group:
Plumbing Testing
Product Subgroup:
Testing Products
Product Type:
Test Plug
Product Finish:
Black
Product Weight:
32
Product Nominal Size:
12 in. - 18 in. (300 - 450 mm)

OATEY 214188 – Frequently Asked Questions

1) What pipe sizes does the Cherne I-Series Muni-Ball 214188 test plug fit?
The 214188 Muni-Ball is sized for 12 in. to 18 in. (300 to 450 mm) nominal lines. That single plug covers the whole range, so one unit handles 12, 15, and 18 inch pipe on the same job rather than carrying three plugs.
2) Will the 12-18 inch Muni-Ball plug fit down a standard manhole?
Deflated, the plug measures 10.5 in. across and 25 in. (635 mm) long, so it passes easily through a 24 in. manhole frame. Cherne states that all plugs through the 24-60 in. size fit a 24 in. frame, and this one is well under that.
3) How much air pressure do I inflate the Cherne Muni-Ball 214188 to, and how much head can it hold back?
Inflate to 45 psi (3 bar). Maximum back pressure is 15 psi (1 bar), which is the limit of what the plug will hold against upstream head, so size your test head to stay under it. Air is fed through a 1/4 in. inflation thread.
4) What is the bypass on this Muni-Ball plug for, and what size is it?
The bypass is a 3 in. male connection running through the plug, so flow can be carried past the plug while the line is blocked, or a pump/hose can be tied in during testing. If you need a full block with no flow-through, order a Muni-Ball without a bypass instead.
5) Does the 214188 plug have a pressure relief valve and eyebolts for a safety line?
Relief valves and 3/4 in. eyebolts are features Cherne puts on the 15-32 in. and larger plugs, which this 12-18 in. size is below. What it does carry is a 0.25 in. eyenut for a chain or tag line, so tether it before it goes in the pipe and watch your inflation gauge, since the 45 psi inflation figure is the ceiling.
6) Will a rubber test plug hold up to repeated use in sewer main testing?
The I-Series Muni-Ball is built for repeat municipal service: full body cording through the rubber for durability and aluminum end plates to keep rust out of the assembly. The wide expansion range is what lets one plug cover 12 through 18 inch line instead of stocking a plug per diameter.
How fast can I get the OATEY 214188 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 214188 come with a warranty?
Absolutely. The OATEY 214188 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 214188?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the OATEY 214188 from ZenSupply?
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