Enpu Machinery Industries Co., Ltd.

Enpu Machinery Industries Co., Ltd. is an excellently developing private one which specializes in producing, Electric power accessories automobile fittings and hydraulic pressure flange of British standard, American standard and international standard. Our professional technology is canonized by the professional field. Since long time ago we had provided qualified products at home and overseas.

Our factory is located in the Lotus Country Shipping Hydraulic Pressure Fa Bridge Industrial Zone which is at the side of the Ningheng Road in Yin country, Ningbo, Zhejiang. We exert the advantage of the geography field of shipping fittings. We focus on the customers, the best quality and do well everything. "We gradually improve the quality and the skill of management, and customize the factory, based on the tenet. Response flexibly, provide the products on time, best quality and perfect service".

Welcome to our factory visiting the assembly line and do business with us. We believe our factory will be your best reliable partner.

We are also the leading manufacturer of oil country tubular fittings, swages, and bull plugs. We are in the heart of the oil patch market. We recognize our customers delivery and special requirements. We take that extra step to accommodate these needs. We are dedicated to a continuous quality improvement process to maximize all aspects of the company and service our customers needs.

Line Pipe Bull Plugs

Nominal Pipe Size Range 1/8" - 8" NPS

Bull plugs available in schedule 40 (standard), schedule 80 (extra heavy), schedule 160 (S160), (double extra heavy (XXH), or solid.

All bull plugs can be tapped.

End finishes are available: Current API threads, beveled for weld, square cut (socket weld) or grooved

Tubing Bull Plugs

Nominal Sizes 1" - 4 1/2" upset and non-upset.

Tubing Bull Plugs are available with all current API threads (8 or 10 round, 11 1/2V, 10V, 8V).

Wall thickness′ available are standard through double extra heavy.

Standard materials are J-55, K-55, N-80 or L-80.

Thread types are color-coded for easy identification.

Casing Bull Plugs

Sizes Range 4 1/2" - 9 5/8" O. D.

Casing bull plugs available with all current API threads or beveled for welding.

Casing bull plugs available in standard, extra heavy, double extra heavy.

Standard materials are J-55, K-55, N-80 or L-80.

Thread types are color-coded for easy identification.

Refinery Plugs - Nominal Sizes 1/8" - 2 1/2".

Wall thickness′ available are standard through double extra heavy.

Manufactured out of cold drawn bar which is heat treated in accordance with ASTM A234-04 WPB.

Line Pipe Bull Plugs

Nominal Pipe Size Range 1/8" - 8" NPS

Bull plugs available in schedule 40 (standard), schedule 80 (extra heavy), schedule 160 (S160), (double extra heavy (XXH), or solid.

All bull plugs can be tapped.

Tubing Bull Plugs

Nominal Sizes 1" - 4 1/2" upset and non-upset.

Tubing Bull Plugs are available with all current API threads (8 or 10 round, 11 1/2V, 10V, 8V).

Wall thickness′ available are standard through double extra heavy.

Standard materials are J-55, K-55, N-80 or L-80.

Thread types are color-coded for easy identification.

Casing Bull Plugs

Sizes Range 4 1/2" - 9 5/8" O. D.

Casing bull plugs available with all current API threads or beveled for welding.

Casing bull plugs available in standard, extra heavy, double extra heavy.

Standard materials are J-55, K-55, N-80 or L-80.

Thread types are color-coded for easy identification.

Refinery Plugs - Nominal Sizes 1/8" - 2 1/2".

Wall thickness′ available are standard through double extra heavy.

Manufactured out of cold drawn bar which is heat treated in accordance with ASTM A234-04 WPB.

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