Menu
- Nipples / Adapters external threads(273)
- Couplings / half coupling - internal threads(341)
- Cast iron reductions / extensions(43)
- Reduction(258)
- Compression Fittings(12)
- Elbows(337)
- Cross(22)
- Tees(172)
- Plugs(155)
- Caps(67)
- Pipe nipple(206)
- Hose-end fittings(91)
- Unions(178)
- Sockolet / Weldolet / Threadolet / Boss / Elbolet / Couplet(145)
- Measuring connection(3)
- Pipes(50)
- Flanges(151)
- Valves(181)
- Gaskets / Sealant tapes(268)
- Thread washers and seals(132)
- Slide bushing(136)
- Socket Weld Fittings(178)
- Air Springs(39)
- Pendant control station(237)
- Limit switches(33)
- Electronics(17)
- Thermostat(4)
- Potentiometer(9)
- BRAHMA(7)
- Rectifiers(15)
- Building supplies(3)
- FACOM(9)
- Screws(26)
- Packaging(3)
- Other products(43)
- Heads(16)
- Flange stubs(9)
- Liquefaction of goods(7)
- New products
- Products on sale
Login
€0.29
€0.24
€87.99
€71.54
€1.28
€1.04
€3.90
€3.17
Half Coupling 1 1/4'' BSPT A105 Class 3000
Regular price:
Regular price:
product unavailable
add to wish list
Description
Half Coupling 1 1/4'' BSPT A105 Class 3000
- Size: 1 1/4''
- Thread type: BSPT (tapered)
- Pressure class: Class 3000 (206 bar)
- Material: ASTM A105 forged carbon steel (equivalent to P245GH, P285GH)
- Dimension D: 60.0 mm
- Dimension V: 34.5 mm
- Dimension L2: 18.4 mm
- High-pressure half coupling
- Excellent weldability
- Applications: boilers, high-pressure piping systems, high-temperature installations, refineries, marine industry, steel mills, ships, industrial machinery, pressure vessels
- 3.1 material certificate available on request (free of charge)
- Origin: European Union
Alternative Name: Half Coupling 1 1/4'' BSPT A105 Class 3000, forged threaded half coupling, BSPT weld-on half coupling, high-pressure half coupling, ASTM A105 threaded fitting, Class 3000 half coupling.
Information
Half Coupling 1 1/4'' BSPT A105 Class 3000 is a high-pressure threaded fitting designed for welded piping systems. It is available in a full range of imperial sizes and provides a reliable threaded connection in demanding pressure applications.
Each half coupling is permanently marked with its size, material grade, heat number, and pressure class, ensuring full traceability. A 3.1 material certificate is available on request.
ASTM A105 Carbon Steel
ASTM A105 is a forged carbon steel widely used for piping components, flanges, and forged fittings operating at ambient and elevated temperatures. It offers excellent weldability, machinability, and mechanical strength for pressure applications.
Equivalent grades: 1.0460, C22.8, P245GH, P265GH.
Advantages
- Easy thread selection
- Wide range of material grades
- Excellent weldability
- High mechanical strength
- Suitable for high-pressure service
Applications
- Boilers
- High-pressure piping systems
- High-temperature installations
- Refineries
- Marine industry
- Steel mills
- Ships
- Industrial machinery
- Pressure vessels
We also offer Half Couplings in other sizes and pressure classes. If you have any questions, please contact us. Call +48 63 261 42 02 or email biuro@polberis.pl.
Learn more about half couplings and couplings here >>
Technical data
| Coupling Type | Half Coupling |
| Material | Carbon Steel |
| Pressure | Pressure Range 101–250 bar |
| Connection 1 | 1 1/4'' |
| Thread Type – Connection 1 | BSP / G / Rp / Rc Thread |
| Connection 2 | 1 1/4'' |
| Thread Type – Connection 2 | BSP / G / Rp / Rc Thread |
Safety
Related products
Steel nipple 1 1/4'' BSPT
Pipe nipple 1 1/4'' BSPT Rc 76mm A106
Coupling 1 1/4" BSPT Class 3000 ASTM A105
