What is a coupling you ask? A coupling is a short length of pipe used to join two pipes together. They are often threaded internally on both ends however weld-on applications are also used. Wellmaster specializes in API grade couplings, reamed and drifted couplings, adapter couplings, weld rings and line pipe couplings.

Wellmaster API couplings are produced under licence from the American Petroleum Institute (API) with close in-plant quality assurance controls. Detailed inspection reports accompany every shipment and each coupling is carefully and thoroughly inspected to API requirements by the producing operator as well as quality assurance personnel.

Wellmaster’s quality check points include: raw material verification, wet mag particle testing, dimensional check of machined part, serial number identification, date of manufacture identification, quality control audit and inspection report.

Our automated plating line closely controls process time for each part, maintaining consistent plating on all machined surfaces. Frequent monitoring of the phosphating and galvanizing processes result in a superior thread finish. Electro-galvanizing is controlled to CSA preece test standards.

Couplings are carefully packed in heavy duty corrugated containers and mounted on wooden pallets. This procedure provides maximum protection in the long term storage of couplings.

Wellmaster has produced and sold couplings to the Canadian, U.S. and world markets. The Wellmaster name assures the best quality available. The employees at Wellmaster have served the drilling industry throughout Canada for over 26 years.

 

 

 

 

 

 

 

M3428100D - 4 1/2" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 5.000" O.D.

M3428200D - 4 1/2" Coupling - API - 8 RD. Thread - Long - K-55 Grade - ERCB Directive 10 - 5.000" O.D.

M3428800D - 5 1/2" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 6.050" O.D.

M3428900D - 5 1/2" Coupling - API - 8 RD. Thread - Long - K-55 Grade - ERCB Directive 10 - 6.050" O.D.

M3429800D - 6 5/8" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 7.390" O.D.

M3430310D - 7" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 7.875" O.D.

M3430410D - 7" Coupling - API - 8 RD. Thread - Long - K-55 Grade - ERCB Directive 10 - 7.875" O.D.

M3432050D - 8 5/8" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 9.625" O.D.

M3432100D - 8 5/8" Coupling - API - 8 RD. Thread - Long - K-55 Grade - ERCB Directive 10 - 9.625" O.D.

M3432500D - 9 5/8" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 10.625" O.D.

M3432600D - 9 5/8" Coupling - API - 8 RD. Thread - Long - K-55 Grade - ERCB Directive 10 - 10.625" O.D.

M3436100D - 10 3/4" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 11.750" O.D.

M3436390D - 11 3/4" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 12.750" O.D.

M3436600D - 13 3/8" Coupling - API - 8 RD. Thread - Short - K-55 Grade - ERCB Directive 10 - 14.375" O.D.

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M3427851D - 1 1/4" Coupling - Reamed & Drifted - 11.5 V. Thread - Black

M3427951D - 1 1/4" Coupling - Reamed & Drifted - 11.5 V. Thread - Galvanized

M3427852D - 1 1/2" Coupling - Reamed & Drifted - 11.5 V. Thread - Black

M3427952D - 1 1/2" Coupling - Reamed & Drifted - 11.5 V. Thread - Galvanized

M3428048D - 2" Coupling - Reamed & Drifted - 11.5 V. Thread - Black

M3428049D - 2" Coupling - Reamed & Drifted - 11.5 V. Thread - Galvanized

M3428052D - 3" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3428053D - 3" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

M3428055D - 4" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3428056D - 4" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

M3427860D - 5" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3427861D - 5" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

M3429610D - 6" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3429612D - 6" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

M3432351D - 8" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3432352D - 8" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

M3436380D - 10" Coupling - Reamed & Drifted - 8 V. Thread - Black

M3436382D - 10" Coupling - Reamed & Drifted - 8 V. Thread - Galvanized

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M3428060 - 4" Adapter Coupling - Weld x 8 V. Thread - 5.200" O.D.

M3429505 - 5" Adapter Coupling - Weld x 8 V. Thread - 6.296" O.D.

M3429620 - 6" Adapter Coupling - Weld x 8 V. Thread - 7.390" O.D.

M3432302 - 8" Adapter Coupling - Weld x 8 V. Thread - 9.625" O.D.

M3432303 - 10" Adapter Coupling - Weld x 8 V. Thread - 11.750" O.D.

M3432304 - 12" Adapter Coupling - Weld x 8 V. Thread - 14.000" O.D.

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M3428058 - 3 1/2" Weld Ring - 3 1/2" Long - 4.000" O.D.

M3428061 - 4 1/2" Weld Ring - 3 1/2" Long - 5.000" O.D.

M4506250 - 5 1/2" Weld Ring - 4" Long - 6.050" O.D.

M3429504 - 5 9/16" Weld Ring - 3 3/4" Long - 6.696" O.D.

M4506252 - 5 9/16" Weld Ring - 4" Long - 6.050" O.D.

M4506253 - 5 9/16" Weld Ring - 5" Long - 5.875" O.D.

M4506254 - 5 9/16" Weld Ring - 5" Long - No Center Lip - 6.050" O.D.

M4506400 - 6 5/8" Weld Ring - 2 1/4" Long - 1/2" Wide Center Lip - 7.000" O.D.

M4506401 - 6 5/8" Weld Ring - 2 1/4" Long - No Center Lip - 7.000" O.D.

M4506415 - 6 5/8" Weld Ring - 3 1/2" Long - 7.000" O.D.

M4506416 - 6 5/8" Weld Ring - 3 1/2" Long - No Center Lip - 7.000" O.D.

M3429618 - 6 5/8" Weld Ring - 4 7/8" Long - 7.390" O.D.

M3429616 - 6 5/8" Weld Ring - 4 7/8" Long - No Center Lip - 7.390" O.D.

M4506475 - 6 5/8" Weld Ring - 8" Long - 7.000" O.D.

M4506800 - 7" Weld Ring - 4" Long - 7.656" O.D.

M4507000 - 8 5/8" Weld Ring - 5 1/4" Long - 9.625" O.D.

M4508000 - 10 3/4" Weld Ring - 4" Long - 11.750" O.D.

M4508001 - 10 3/4" Weld Ring - 4" Long - No Center Lip - 11.750" O.D.

M3436382 - 10 3/4" Weld Ring - 5 9/16" Long - 11.750" O.D.

M4508002 - 12 3/4" Weld Ring - 4" Long - 14.000" O.D.

M4508006 - 16" Weld Ring - 6" Long - 17.000" O.D.

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M3445008 - 2 1/2" Coupling - Line Pipe - 8 V. Thread - 3.375" O.D. - Black

M3445009 - 2 1/2" Coupling - Line Pipe - 8 V. Thread - 3.375" O.D. - Galvanized

M3445010 - 4" Coupling - Line Pipe - 8 V. Thread - 5.200" O.D. - Black

M3445022 - 5" Coupling - Line Pipe - 8 V. Thread - 5.875" O.D. - Black

M3445020 - 5" Coupling - Line Pipe - 8 V. Thread - 6.296" O.D. - Black

M3445021 - 5" Coupling - Line Pipe - 8 V. Thread - 6.296" O.D. - Galvanized

M3429950 - 6" Coupling - Line Pipe - 8 V. Thread - 7.390" O.D. - Black

M3429952 - 6" Coupling - Line Pipe - 8 V. Thread - 7.390" O.D. - Galvanized

M3445030 - 8" Coupling - Line Pipe - 8 V. Thread - 9.625" O.D. - Black

M7003695 - 10" Coupling - Line Pipe - 8 V. Thread - 11.750" O.D. - Black

M3436500 - 12" Coupling - Line Pipe - 8 V. Thread - 14.000" O.D. - Black

M3436510 - 12" Coupling - Line Pipe - 8 V. Thread - 14.000" O.D. - Galvanized

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M3448011D - 6" Coupling - Press x Press - 7.390" O.D.

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M3448010D - 6" Coupling - Press x 8 V. Thread - 7.390" O.D.

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