Dip Pipe

PTFE Lined and Covered Steel Dip Pipes
PSI Dip Pipes are designed to provide the ultimate in corrosion-resistant, non-contaminating construction to 350°F for loading vessels below the liquid level, and decanting and unloading without the need for bottom outlets. The maximum recommended operating pressure is 150 psi. They are designed to withstand high mechanical loads imposed by mixing or agitation in process vessels and reactors. The schedule 80 steel pipe is protected from corrosion by an extruded, high density, chemically inert PTFE liner and jacket which are fused together at the bottom. Both the liner and the jacket are applied in a manner which compensates for thermal expansion.

Warning: Exceeding the maximum recommended service temperature and/or pressure, or recommended unsupported length can result in premature failure and personnel and/or equipment hazard.

Dimensional Data

Pipe & Connecting Flange Size	Nozzle Flange Size*	Min. Diameter of Jacket Gasket Seal	Diameter of Liner Gasket Seal	Nom. O.D.*	Max. Recommended Unsupported Length in ft.**
1/2"	1	1 7/8	1 3/8	1	3
1"	1 1/2	2 3/4	2	1 7/16	4
1 1/2"	2	3 1/2	2 7/8	2 1/64	5
2"	3	4 3/8	3 5/8	2 1/2	6
3"	4	5 7/16	5	3 5/8	8

*Note: The nozzle flange sizes shown are the only sizes available. To connect a dip pipe to a larger nozzle, a special PSI reducing flange must be used. Contact factory for more information as not all standard reducing flanges are suitable.
**Recommended maximum length for mild agitation is shown as a general guide for liquids having about the same density and viscosity as water. For longer lengths, or more severe operating loads (density, viscosity and velocity of fluid at the pipe), a larger size of internal bracing should be employed.