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Cherne® 2in.- 3in. MS2® Plug
Features
- Nylon strap and safety handle prevents plug from sliding down a line
- Long enough to seal wye vertical riser and sewer run
- Includes 5' extension hose
- Multi-stage deflation eliminates backsplash
- Designed for waste stack testing from floor drain to sewer pipe
- Pressure relief valve to safeguard against over-inflation
Manufacturer Resources
Product Specs
- Chain Eye Bolts:
- Strap and Handle
- Deflated Diameter:
- 1.58 in. (37 mm)
- Deflated Length:
- 19.44 in.
- Inflation Pressure:
- 40 psi (2,8 bar)
- Inflation Thread:
- tank valve
- Maximum Back Pressure:
- 13 psi (0,9 bar)/30 ft. (9.1 M)
- Volume:
- 0.18
- Department:
- Plumbing
- Product Group:
- Plumbing Testing
- Product Subgroup:
- Testing Products
- Product Type:
- Test Plug
- Product Finish:
- Black
- Product Weight:
- 1.65
- Product Nominal Size:
- 2 in. - 3 in. (50-75 mm)
OATEY 274518 – Frequently Asked Questions
1) How much head of water can this plug hold back during a waste stack test?
The MS2 274518 is rated to 13 psi (0,9 bar) back pressure, which equates to a 30 ft. (9.1 M) column of water. Plan your test section so the head above the plug stays within that 30 feet; taller stacks need to be tested in stages.
2) How do you inflate the Cherne MS2 plug and to what pressure?
It inflates through a tank valve, the same fitting as a tire stem, so a standard hand pump or compressor chuck works. Inflation pressure is 40 psi (2,8 bar). A pressure relief valve is built in to guard against over-inflation, and a 5 ft. extension hose comes with the plug so you can inflate from outside the drain.
3) Can one plug seal both a wye vertical riser and the horizontal sewer run?
Yes. At 19.44 in. deflated length, the MS2 is long enough to bridge and seal a wye vertical riser as well as a sewer run, which is why it is used for waste stack testing from floor drain down to sewer pipe. A short stubby plug will not span a wye fitting the same way.
4) Will this plug stay put, or can it slide down the line once it is in?
The 274518 uses a nylon strap and safety handle rather than a chain eye bolt, and that strap is what keeps the plug from sliding down the pipe. You tie off at the opening and retrieve by the handle, which matters on a vertical riser where a loose plug would drop out of reach.
5) How do you deflate a test plug without flooding the floor you are standing on?
The MS2 uses multi-stage deflation, which lets the water pass gradually instead of releasing the full head at once, so you do not get the backsplash a single-stage plug gives you when it drops out. On an occupied building or a finished floor that is the difference between a clean test and a cleanup.
6) Is the Cherne 274518 a one-time plug or reusable test equipment?
It is reusable inflatable test equipment, not a throwaway. The 2 in. - 3 in. MS2 weighs 1.65 lb, inflates through a tank valve and deflates for removal, so the same plug goes job to job as long as the bladder is sound. Keep it within the 40 psi inflation rating and off sharp pipe burrs.
How fast can I get the OATEY 274518 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 274518 come with a warranty?
Absolutely. The OATEY 274518 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 274518?
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product
selection,
installation tips, and troubleshooting. Contact Us
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