# Cast iron pipe.

- **operation:** document
- **citation:** 49 CFR 192.275
- **title:** Cast iron pipe.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** (a) Each caulked bell and spigot joint in cast iron pipe must be sealed with mechanical leak clamps.

(b) Each mechanical joint in cast iron pipe must have a gasket made of a resilient material as the sealing medium. Each gasket must be suitably confined and retained under compression by a separate 
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-192-275.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-192-275
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-192.275
**body:**

(a) Each caulked bell and spigot joint in cast iron pipe must be sealed with mechanical leak clamps.

(b) Each mechanical joint in cast iron pipe must have a gasket made of a resilient material as the sealing medium. Each gasket must be suitably confined and retained under compression by a separate gland or follower ring.

(c) Cast iron pipe may not be joined by threaded joints.

(d) Cast iron pipe may not be joined by brazing.

[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-62, 54 FR 5628, Feb. 6, 1989]
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- **body characters:** 515