We can supply many kinds of application connections include threaded and coupled connection, flush and semi-flush joint connection without coulple. For example BGT2, TPCQ, BG-GJ, VAM series, Tenaris series, Hydrill series, JFE series, and their equivalent connections. Integral Upset Connection. A kind of flush thread connection with pipe end. Joint Threaded and Coupled Non-Upset Upset Special Clearance Integral Joint Optimum Minimum Maximum Optimum Minimum Maximum S 3 2 3/8 4.00 J55 0.167 2.041 1.947 2.875 7190 6770 0 610 460 760 S 3 L80 9980 9840 0 830 620 1040 S 3 N80 9980 9840 0 830 620 1040 S 3 C90 0 S, ERW 3, A, B 2 3/8 4.60 4.70 J55.

With over 4,000,000 feet of successfully installed, Permalok® casing pipe is the proven leader for trenchless application of steel pipe. Our patented mechanical press fit interlocking connections join pipe sections quicker than any other system in the field.

4 Flush Joint Casing Specs Chart

Permalok® Steel Casing Pipe excels in trenchless jacking construction applications including microtunneling and pipe jacking, auger boring, pipe ramming, and others. Our precision machined joint reduces field time by eliminating butt-weld joints, resulting is a shortened tunneling duration and reduced field costs. Permalok offers the strength and durability of steel piping with a variety of coating options.

With over 4,000,000 feet of pipe successfully installed in the past 25 years, Permalok® stands as the product of choice for trenchless contractors and engineers on their most challenging and significant projects.

Permalok® steel casing pipe dramatically increases field installation efficiency in trenchless projects. Our engineered systems are available in both rolled and sprialweld construction and utilize a proprietary interlocking joint system that connects pipe quickly and eliminates field butt-welding.

Delivered to your jobsite with an integrated interlocking joint, Permalok® steel casing pipe eliminates time-intensive field butt welds in trenchless pipe installation projects. The precision-machined interface is flush with the interior and exterior surfaces of the pipe for quick alignment and connection. Combined with the use of a silicone sealant, the Permalok joint is leak resistant under the most challenging conditions.

Selecting Permalok® casing pipe over field-welded pipe provides an advantage you can take to the bank. Our proprietary airtight joints seal within minutes, compared to hours reserved for joint welding. The below examples demonstrate real savings in time and money in trenchless installations.

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Description

Popular Sizes

The thread dimensions shown in the following chart are those that may be used to determine a thread type in the field. For specific details of the threads, please contact Mills Machine Co.

Popular Sizes

The thread dimensions shown in the following chart are those that may be used to determine a thread type in the field. For specific details of the threads, please contact Mills Machine Co.

API INTERNAL FLUSH (IF)

API FULL HOLE (FH)

8 5 8 Casing Specs

MAYHEW

FAILING EXPLORATION

SQUARE THREAD & DCDMA THREADS

Other Sizes

API X-HOLE (XH)

HACKER

BECO

CA-21 (DEEP ROCK)

E U E

13 3 8 Casing Specs

HACKER FAILING

MOBILE

NATIONAL PIPE THREAD

PK RED DEVIL

ROCKMASTER

WINTER WEISS