Style 131 | Dismantling Joint

Product Description

Product Features:

The Dresser Style 131 Dismantling Joint is a double-ended flanged adapter that allows for longitudinal adjustment in piping systems where flanged end pipe is the standard. This product will provide the maximum in flexibility when installing and maintaining flanged end pipe interfaces with check valves, gate valves, ball valves, pumps, blowers, meters, engines, compressors, various fittings and appurtenances.
A typical dismantling joint would be used anywhere that a flanged end piping accessory, such as a valve or pump, requires quick installation or removal. The product eliminates the need to drop an inlet or discharge pipe leg normally associated with flanged end pipe. It also allows for up to 2 degrees of misalignment, and can be designed to provide from 2” to 20” of longitudinal adjustment to the pipe ends.
This longitudinal adjustment, provided by a telescoping flanged spool piece, can be limited with the addition of tie rods, which are integral with the joint. As a consequence of this flexibility, center to center dimensions become less critical to the installer and installation time is reduced considerably.
Dresser Dismantling Joints are available in diameters ranging from 4” through 24” in standard designs, and through 96” in diameter for custom-engineered designs. Fabricated in either carbon steel or stainless steel, standard design features flanges supplied to AWWA specification C-207 with a maximum working pressure of 150 PSI. Flanges manufactured to other U.S. and international standards and higher pressure ratings available upon request.


Spool Piece: Steel - AISI C1010-C1015
Flange Adapter: Steel - AISI C1010-C1015
Tie Rods (2) (Optional): Steel - ASTM A193 Grade B7
Nuts: ASTM A194 Grade 2H
Gasket: Grade 27 BUNA S

Nominal Size (inch)
$ 797.15

All Domestic products are melted and manufactured in USA.

All Dresser Products are domestically manufactured by GE / Dresser at the plant in Pennsylvania, USA.

All Import Valves, Hammer Unions, Y-Strainers & Frac Tank Supplies are assembled and tested in USA with components made in China

All Import Buttweld, Socketweld & Threaded Fittings are made in China/Taiwan/India

All Import Flanges are made in China/Taiwan/India

All materials are ASTM / ASME equivalent. Visit our Knowledge Central page for more information on material grades, material chemistry and ASTM, ASME & ANSI myth.

If you have any question, call 281.516.8100 or email

Related Products