Special Threaded Tubing Connectors: PIN * PIN Double Male Nipples and PIN *

3. Special Threaded Tubing Nipples/Connectors: PIN * PIN Double Male Nipples
and PIN * BOX Male-Female Finished Nipples

In the process of oil extraction and transportation, tubing nipples and
connectors are essential components for connecting tubing. Their performance
and quality directly affect the stability and safety of the tubing system. In
recent years, with the continuous development of oil extraction technology,
special threaded tubing nipples and connectors have gradually become mainstream
products in the market. There are mainly two types of special threaded tubing
nipples and connectors: PIN * PIN double male nipples and PIN * BOX male-female
finished nipples.

The PIN * PIN double male nipple refers to a nipple with male threads on both
ends. The advantage of this type of nipple is its convenient connection, which
allows for quick connections between tubing sections. The PIN * BOX male-female
finished nipple, on the other hand, has one end with a male thread and the
other with a female thread. The advantage of this type of nipple is its more
secure connection and better sealing performance, which can effectively prevent
the leakage of oil and gas.

Special threaded tubing nipples and connectors are designed and manufactured
using advanced technologies and processes. For example, high-strength steel and
special heat treatment processes are used, which greatly increase the tensile
and torsional strength of the nipples and connectors. At the same time, through
precise machining equipment and strict quality inspection, the dimensional
accuracy and sealing performance of the nipples and connectors are ensured.

In practical applications, special threaded tubing nipples and connectors can
meet the needs of different oil wells. For example, in high-pressure oil wells,
high-strength PIN * BOX male-female finished nipples are required to ensure the
stability and safety of the tubing system. In situations where quick
connections are needed, PIN * PIN double male nipples can be used to improve
work efficiency. In addition, special threaded tubing nipples and connectors
have good compatibility and can be matched with tubing of different brands and
specifications. This provides users with more choices and also reduces the cost
of use.

With the continuous development of oil extraction technology, the design and
manufacturing technology of special threaded tubing nipples and connectors are
also constantly innovating. In the future, more high-performance and high-
reliability products will be introduced to the market, providing strong support
for the sustainable development of the oil industry.

Welcome to the Online Store of Tianjin Longkailai Petroleum Equipment Co., Ltd.

Execution Standards: API-5CT, API-5L, API-5B, API 5D

Company Products: Tubing couplings, tubing collars, thickened tubing couplings,
flush joint tubing couplings, variable thread tubing couplings, extended tubing
couplings, single-end threaded tubing couplings, internal thread tubing
couplings, tubing connectors, variable thread tubing connectors, variable
diameter tubing couplings, tubing conversion connectors, tubing coupling stock,
tubing nipples, tubing short sections, thickened tubing nipples, tubing lifting
nipples, double male tubing nipples, heavy-weight tubing nipples/short
sections, lifting tubing nipples/short sections, variable thread tubing
nipples/short sections, variable diameter tubing short sections/nipples, tubing
conversion connectors, single-end threaded tubing nipples, coupling stock,
thickened tubing, EUE thickened petroleum tubing, high-pressure tubing nipples,
[casing short sections], [casing nipples], [double male casing short sections],
[double male casing nipples], [casing variable thread couplings], [casing
variable thread connectors], [external thread casing nipples/short sections],
[casing conversion connectors], [high-pressure casing nipples], [casing thread
protectors (cap)], [casing coupling stock], [finished casing products], casing
couplings, coupling stock, short round thread casing couplings, long round
casing couplings, tapered casing couplings, variable thread casing couplings,
casing connectors, casing collars, variable diameter casing couplings,
eccentric casing couplings, casing conversion connectors, API casing, single-
end threaded casing couplings, coupling stock.

Casing Specifications: 4-1/2”-20” with thread types such as STC (Short
Round), LTC (Long Round), BTC (Trapezoidal Thread), etc.

Tubing Specifications: 1.05”-4-1/2” with end processing forms NU (Non-Upset)
and EU (Upset).

Custom Processing: We can process couplings, nipples, variable thread
connectors, etc., in various lengths and sizes according to order drawings.

Processing Forms: Straight connection tubing nipples/connectors, PIN * PIN
(double male nipples), PIN * BOX (male-female finished nipples), BOX * PIN
(female-male finished nipples).

Materials: H40, J55, K55, N80, L80, C-90, C95, T95, P110, Q125, 13Cr-80, 13Cr-
110, Super 13Cr, Nickel-based alloy tubing, etc.

Drill Pipe Specifications: 2-3/8”-6-5/8”, etc.

Thickening Forms: Internal thickening, external thickening, internal and
external thickening. Custom-made products such as drill pipe variable thread
connectors, drill pipe nipples, double male drill pipe nipples, and drill pipe
conversion connectors in various lengths according to orders or drawings.

Materials: E-75, X95, G105, S135, etc.

Company Philosophy: We adhere to the management philosophy of people-oriented
and customer-first. Based on advanced equipment and scientific management, we
provide high-quality products for customers. With a complete marketing network
and service system, we ensure satisfactory service for customers. Let's join
hands to create a brilliant future!

Minimum Order: 1 metric tons

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