Seal-Only Bolted Products

Seal-Only Bolted Products for Natural Gas Piping Systems

Proven by years of service on all kinds of pipe, Dresser couplings provide flexible, leak-proof connections that are designed to be low-maintenance and ensure product longevity.

Style 38

Dresser Style 38 bolted couplings provide flexible, leakproof connections with a proven track-record across many industries. No costly threading, beveling, or alignment is required – your operations just got a whole lot easier!

Stab 38

The Dresser STAB-38 Coupling is a true ‘packaged’ pipe joint that is plug-n-play!

This coupling hits the ground running – out of the carton and right onto the pipe. Available in sizes from 2” through 12”, these couplings are factory-assembled with no loose parts. In a few minutes, you can achieve PERMANENT, TIGHT joints for easy, fast pipe joining!

STAB-38 couplings are supplied with armored or armored pinned gaskets and come in clearly marked cartons to simplify warehousing.

Style 39

Insulation? Electric isolation?

The Dresser Style 39 Insulating Couplings are widely used on lines which are to be electrically isolated for cathodic protection, or for insulating between pipe of dissimilar metals.

Similar in design to the Style 38 coupling, but with insulating properties, Style 39 couplings can essentially be used on all sizes of gas and oil pipelines, and can be supplied with insulating features on both ends if required.

Style 39-40

Got widely separated pipe ends?

The Dresser Style 39-40 Insulated Long Couplings have the same basic design and insulating features as the Style 39, but they’re furnished with a longer middle ring body for joining pipe when gas-in pipe ends are wider than usual.

Style 39-62 Insulating/Reducing Couplings

The Dresser Style 39-62 couplings are most widely used where cast-iron and steel pipes are joined in a system.

Additionally, the Style 39-62 eliminates corrosion problems created when joining pipes of dissimilar metals – increasing the life expectancy of the equipment! A plastic insulating sleeve prevents pipe end contact with the middle ring, and a sliding pipe end spacer separates the two pipe ends.

Style 31 Line Caps

Dresser Style 31 Line Caps are used to close off sections of a pipeline during construction and testing, and to cap off dead-ends in the line for future branch connections.

Available in an insulating design with insulating gasket, insulating sleeve and pipe-end separator.

Style 63 Expansion Joints

The Dresser Style 63 Expansion Joint are used when no flexible joints are used in the pipeline or when the amount of concentrated movement at one point is in excess of the amount that can safely be absorbed by standard couplings.

These are built-to-order, with limited-movement options, flanged, lock coupled, or weld ends! Dresser expansion joints are available with Dresser AL-CLAD™ coating for optimum protection against the elements.

Talk to your DPS representative today to learn more!

Style 128 Flange Adapter

Fabricated from high-strength steel, Dresser Style 128 Flange Adapters are offered standard up to 24” diameter in steel and cast-iron pipe sizes.

The compression end of the adapter has a Dresser coupling-type design utilizing a wedge gasket for an efficient, leak-proof seal. Larger sizes are available upon request—talk to your DPS representative today!