Rubber hose – Flexible hose high pressure – Hose assemblies – Quick coupling – Flexibles for fluid transfer

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.


SHEMA NPST
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
Weco type 2202 BW coupe weco soude joint segments
General dimension FIG. 2002 Butt Welding
Part N° Nominal pipe size (inch) A (mm) B (mm) øOD (mm) øID (Special SCH) Weight (kg)
Union weco 2202 - 2" BW 2" 224 95 73 33 10
Union weco 2202 - 3" BW 3" 267 155 140 76 24

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.

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)

Weco type 1502 filete coupe weco filete joint

General dimension FIG. 1502 - NPT Thread
Part N° Nominal pipe size (inch) A (mm) B (mm) øOD (mm) Weight (kg)
Union weco 1502 - 1" NPT 1" 110 73 55 4,1
Union weco 1502 - 1"1/2 NPT 1"1/2 137 93 75 7,7
Union weco 1502 - 2" NPT 2" 178 99 81 8,6
Union weco 1502 - 2"1/2 NPT 2"1/2 184 106 95 10
Union weco 1502 - 3" NPT 3" 194 114 112 13,6
Union weco 1502 - 4" NPT 4" 216 300 146 29
Union weco 1502 - 5" NPT 5" - - - -


Weco type 1502 BW coupe weco soude joint

General dimension FIG. 1502 Butt Welding
Part N° Nominal pipe size (inch) A (mm) B (mm) øOD (mm) øID (SCH XXH) Weight (kg)
Union weco 1502 - 1" BW 1" 110,7 68,6 33,4 15,2 3,7
Union weco 1502 - 1"1/2 BW 1"1/2 136,9 92,2 65 28 7,5
Union weco 1502 - 2" BW 2" 160 100 60,3 38,1 9,5
Union weco 1502 - 2"1/2 BW 2"1/2 136 106 73 45 10
Union weco 1502 - 3" BW 3" 134 115 88,9 58,4 13
Union weco 1502 - 4" BW 4" 216 154 114,3 80,1 34
Union weco 1502 - 5" BW 5" 228,6 165 141,3 103,2 43

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.

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
Weco type 2002 BW coupe weco soude joint segments
General dimension FIG. 2002 Butt Welding
Part N° Nominal pipe size (inch) A (mm) B (mm) øOD (mm) øID (Special SCH) Weight (kg)
Union weco 2002 - 2" BW 2" 188 95 66 33 9,5
Union weco 2002 - 3" BW 3" 267 155 140 76 21,8

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.

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
Weco type 1003 coupe weco filete joint

WECO Wing Unions, type 1003 - NPT Thread     
Part N° Nominal pipe size (inch) A (mm) B (mm) øOD (mm) Weight (kg)
Union weco 1003 - 2" NPT 2"  118  95 76  5,4
Union weco 1003 - 3" NPT 3"  232  124  111  20,4
Union weco 1003 - 4" NPT 4"  278  146  140  33,6
Union weco 1003 - 5" NPT 5"  -  -  -  -


Weco type 1003 BW coupe weco soude joint alignable

General dimension FIG. 1003 Butt Welding
Part N° Nominal pipe size (inch) A (mm) B (mm) X° max øOD (mm) øID (SCH XXH) Weight (kg)
Union weco 1003 - 2" BW 2" 120 88,9 4 60,3 38,1 6
Union weco 1003 - 3" BW 3" 231,7 123 7,5 88,9 58,4 20,1
Union weco 1003 - 4" BW 4" 277,7 140 7,5 114,3 81,1 36,9
Union weco 1003 - 5" BW 5" 277,7 140 7,5 141,3 103,2 39,4

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.

Tuyaux flexibles off shore
Tuyaux flexibles eau
Tuyaux flexibles Abrasifs
Tuyaux flexibles Air Gaz
Tuyaux flexibles Vapeur
Tuyaux flexibles Chimie
Tuyaux flexibles Hydrocarbures
Tuyaux flexibles Alimentaire
Tuyaux flexibles Siderurgie
Tuyaux flexibles Marine
Tuyaux flexibles Securite civile
Tuyaux flexibles inox

Certifications :

Our compliance with the standards for all of our products and our commitment to quality demonstrates our pledge to safety and performance.


Logo certifications veritas

- ISO 9001 : 2015
Production of flexible hydraulic hoses
Sales of hydraulic hoses and connectors
Manufacturing of pneumatic tubes

- ISO 9001 : 2015
Production of industrial and hydraulic flexible hoses
Industrial rubber hoses trade


certification bureau veritas marine

- VERITAS marine division certification : 2012
Off-shore flexible hoses for ship-to-ship open sea oil transfer

- VERITAS marine division certification : 2016
Fire resistant flexible hoses for marine and offshore use


Logo certifications dreal

Type approvals issued by the management of regional industry, research, and the Brittany Environment


materiels sapeur pompier afnor

AFNOR Certification
NF 377 label (fire fighting material)

N° : 111.TA.06
N° : 111.TSR.06
N° : 111.TSR.07


certification AEO

Certified Authorized Economic Operator

AEO-C1 CERTIFICATE: Customs simplifications
AEO-S2 CERTIFICATE: Safety and security
AEO-F3 CERTIFICATE: Security and safety/customs simplification




tuyaux caoutchouc test de resistance
tuyaux caoutchouc flexibles applatissable
tuyaux caoutchouc flexibles brides