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Cherne® DEFLECTION GAUGE, 8 IN. FIXED SDR 26 5%
Features
- Durable, zinc-plated construction resists corrosion
- Nine-arm design ensures testing accuracy
- Open design allows gravel and debris pass-through
- Conforms to mandrel sizing specification-blade length is equal to or greater than the nominal pipe size
- Fixed steel design
Manufacturer Resources
Product Specs
- Average Pipe I D :
- 7.715 in. (195.96 mm)
- Base Pipe I D :
- 7.488 in. (190.20 mm)
- Volume:
- 0.001
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Fittings
- Product Type:
- General Fittings
- Product Weight:
- 7.3
OATEY 286018 – Frequently Asked Questions
1) Is this a fixed mandrel or an adjustable one?
Fixed. The 286018 is a one-piece fixed steel mandrel, so there is nothing to set, calibrate or recheck on site, and no chance of an arm drifting out of position between manholes. The tradeoff is that it tests one size and one deflection value only. If you inspect several pipe sizes or several SDRs, you need a separate fixed gauge for each combination.
2) Will the deflection gauge hang up on gravel or debris in the sewer line?
The nine-arm open frame lets gravel and debris pass through rather than packing up in front of the mandrel, which is what keeps a dirty line from producing a false failure. The arms themselves are the measuring surface, so contact with the pipe wall is what stops it, not accumulated grit.
3) How heavy is the 8 inch Cherne mandrel to pull through a line?
It weighs 7.3 pounds. That is light enough for one person to pull by rope through a run between manholes, but the mass plus the nine rigid arms means you want a steady pull rather than a jerk, so a hang-up reads as a genuine deflection point and not a snagged rope.
4) Will a steel deflection mandrel rust out sitting in a wet truck bed?
The 286018 is zinc-plated steel, which is what handles the corrosion exposure from wet lines and muddy storage between jobs. Plated construction also keeps the arm dimensions stable over time, which matters on a fixed gauge where the arms are the calibration.
5) What is the exact part number to order this 8 inch deflection gauge?
Order Oatey Cherne model 286018. That single number covers the complete fixed mandrel, 8 inch, SDR 26, 5 percent deflection. There are no handing, finish or length options to specify with it.
How fast can I get the OATEY 286018 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 286018 come with a warranty?
Absolutely. The OATEY 286018 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 286018?
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 286018 from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.