Wings union (WECO type)

They are the pressure containing parts of the assembly that provide metal-to-metal primary seal.

Subs are manufactured per different assembly modes:
    Butt weld assembly
    NPT threaded assembly
    NPST threaded assembly
    Sub profiles are also machined / forged as an integral part of a piping element.

Nut :
This is a forged part of assembly that allows connection of the two subs through a specific Acme or Iso thread.

Seal Element :
Seal element is an elastomer component which acts as a secondary seal to protect metal-to-metal seal against corrosion.
Depending on the union figure it can be a lip type ”Seal Ring” or an ”O-Ring”.
Different materials are available to suit fluid service (Buna for Standard service or FKM for H2S service).

NPST (Non Pressure Seal Thread)3604-NPST-EN :
The NPST assembly is a special design for Higher Pressure service which can replace welded or conventionally Threaded union construction.
In this instance it can be seen from the illustration that the threads are not exposed to well effluent which is the case with conventional threaded (ie L.P.) components
This type of construction, on straight flowline and pup joints, is generally more economically priced when compared to integral equipment.

Union weco type 50

Recommended service :
Suction service and very low pressure.
Main characteristics :
- Max pressure: 500 PSI STD & H2S service
- Working T: -20°F / 250°F
- Thread: ACME
- End connection: NPT Thread
- Sealing system : Metal to metal + o-ring on male side
- Material: A105 / A350 LF2 Mod

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 100

Recommended service :
Manifold and line connections Economical low-pressure union
Main characteristics :
- Max pressure: 1000 PSI STD & H2S service
- Working T: 20°F / 300°F
- Thread: ACME
- End connection: NPT Thread
- Sealing system: Metal to metal (fire resistance)
- Material: A395

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 200

Recommended service :
Manifold line connections, suction service, corrosion service.
Main characteristics :
- Max pressure: 2000 PSI STD & H2S service
- Working T: -40°F / 350°F
- Thread: ACME
- End connection: Butt welding (NPT or GAS Thread also available)
- Sealing system : Fig 200 : metal to metal
                              Fig 206: metal to metal + O-ring on male side
- Sub Material: A350 LF2

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used

Union weco type 206

Recommended service :
Manifold line connections, suction service, corrosion service.
Main characteristics :
- Max pressure: 2000 PSI STD & H2S service
- Working T: -40°F / 350°F
- Thread: ACME
- End connection: Butt welding (NPT or GAS Thread also available)
- Sealing system : metal to metal + O-ring on male side
- Sub Material: A350 LF2

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 207

Recommended service :
Seals manifold connections & protects union threads.
Parts interchangeable with Fig 200 & 206.
Main characteristics :
- Max pressure: 2000 PSI STD & H2S service
- Working T: 20°F / 300°F
- Thread: ACME
- End connection: NPT Thread (Butt welding also available)
- Sealing system: O-ring on blanking cap ensures a leak-free seal
- Material: AISI 1040

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 400

Recommended service :
Manifold and line connections, pump suction, mud services.
Main characteristics :
- Max pressure: 4000 PSI STD & H2S service from 2’’ to 4’’
                2500 PSI STD & H2S service from 5’’ to 12’’
- Working T: 20°F / 300°F
- Thread: ACME
- End connection: NPT Thread (Butt welding also available)
- Sealing system: Metal to metal (fire resistance)
- Material: A395 / AISI 1040

All specifications are given as an indication, they may be modified in the interest of our customers.

Note: the operating temperature depends on the type of elastomer used.

Union weco type 602

Recommended service :
Manifold line connections, pump suction & mud services, well test piping lines.
Main characteristics :
- Max pressure: Sch 80 (A350 LF2) 2500 PSI STD & H2S service from 1” to 3”
                                                        2300 PSI STD & H2S service for 4”
- Max pressure: Sch XXH (A350 LF2) 5000 PSI STD & H2S service for 3” & 4”
                                                           6000 PSI STD & H2S service from 1’’ to 2’’
- Max pressure: Sch XXH (AISI 4130) 6000 PSI STD & H2S service from 1’’ to 4’’
- Working T: - 40°F / 350°F
- Thread: ACME (& ISO for 2” & 3”)
- End connection: Butt welding (NPT Thread also available)
- Sealing system: Seal ring
- Sub Material: A350 LF2 / AISI 4130

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Danger : Avoid the DANGER for interconnecting 2" Fig 602 and Fig 1002 with 2" Fig 1502.

Never strike, tighten, loosen or attempt repairs on pressurised components or connections.
Always apply essential care, handling and inspection to threaded components before, during and after make-up.
Never use severely worn, eroded or corroded components.
Never strike wing unions nuts having severely flattened and extruded ears.
Always use a bronze hammer in order to avoid sparkling while striking onto a wing union nut.

Union weco type 1002

Recommended service :
Cementing, fracturing, acidizing, testing, choke and kill lines, well test piping lines
Main characteristics :
- Max pressure: Sch XXH (A350 LF2) 5000 PSI STD & H2S service for 1” to 6”
- Max pressure: Sch XXH (AISI 4130) 7500 PSI STD service for 5” & 6”
                                                           10000 PSI STD service from 1” to 4”
                                                            5000 PSI H2S service for 5” & 6”
                                                            7500 PSI H2S service from 1” to 4”
-  Working T: - 40°F / 350°F
- Thread: ACME
- End connection: Butt welding (NPT Thread also available)
- Sealing system : Seal ring
- Sub Material: A350 LF2 / AISI 4130

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Danger : Avoid the DANGER for interconnecting 2" Fig 602 and Fig 1002 with 2" Fig 1502.

Never strike, tighten, loosen or attempt repairs on pressurised components or connections.
Always apply essential care, handling and inspection to threaded components before, during and after make-up.
Never use severely worn, eroded or corroded components.
Never strike wing unions nuts having severely flattened and extruded ears.
Always use a bronze hammer in order to avoid sparkling while striking onto a wing union nut.

Union weco type 1003

Recommended service :
For high-pressure connections where lines cannot be aligned, stand pipe lines.
Main characteristics :
- Max pressure: Sch XXH 10000 PSI STD service for 2” & 3”
                                          7500 PSI H2S service for 2” & 3”
                                          7500 PSI STD service for 4’’ & 5’’
                                          5000 PSI H2S service for 4’’ & 5’’
- Working T: - 40°F / 350°F
- Thread: ACME
- End connection: Butt welding (NPT Thread also available)
- Sealing system: O-ring on male side
- Sub Material: AISI 4130

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 1502

Recommended service :
Cementing, fracturing, acidizing, testing, and choke and kill lines, well test piping lines.
Main characteristics :
- Max pressure: Sch XXH 15000 PSI STD service 10000 PSI H2S service
- Working T: -40°F / 350°F
- Thread: ACME
- End connection: Butt welding (NPT Thread also available)
- Sealing system: Seal ring
- Sub Material: AISI 4130 (A350 LF2 also available)

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Danger : Avoid the DANGER for interconnecting 2" Fig 602 and Fig 1002 with 2" Fig 1502.

Never strike, tighten, loosen or attempt repairs on pressurised components or connections.
Always apply essential care, handling and inspection to threaded components before, during and after make-up.
Never use severely worn, eroded or corroded components.
Never strike wing unions nuts having severely flattened and extruded ears.
Always use a bronze hammer in order to avoid sparkling while striking onto a wing union nut.

Union weco type 1502

Recommended service :
Cementing, fracturing, acidizing, testing, and choke-and-kill lines.

Main characteristics :
- Max pressure: 20000 PSI STD service
- Working T: 20°F / 300°F
- Thread: ACME
- End connection: Butt welding
- Sealing system: Seal ring
- Sub Material: AISI 4130

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.

Union weco type 2202

Recommended service :
Cementing, fracturing, acidizing, testing, and choke-and-kill lines.

Main characteristics :
- Max pressure: 15000 PSI H2S service
- Working T: 20°F / 300°F
- Thread: ACME
- End connection: Butt welding
- Sealing system: Seal ring
- Sub Material: AISI 4130

All specifications are given as an indication, they may be modified in the interest of our customers.
Note: the operating temperature depends on the type of elastomer used.