Connector, welded fittings
// Pipe fittings that simply fit together.
Filter products
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Pipe connector
- Ductile iron pipe fittings | T-pieces
- Ductile iron pipe fittings | Elbows
- Ductile iron pipe fittings | Cross pieces
- Ductile iron pipe connectors | Wall brackets / base plates
- Ductile iron pipe connectors | Handrails
- Ductile iron pipe coupler | Adjustable angle
- Ductile iron pipe couplings | Clamping rings / Flanges
- Ductile iron pipe couplings | Elbows
- Ductile iron pipe couplings | Extension pieces
- Ductile iron pipe couplings | Variable diameter
- Ductile iron pipe couplings | Accessories
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Stainless steel components
- Plate holder
- Glass and panel holders
- Stainless steel glass holder
- Glass balustrades
- Glass point holder
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Stainless steel balustrades
- Cover rosettes | Post covers
- Anchor plates
- Spacers
- Balustrade posts | Post fixings
- Handrail bracket
- Handrail supports
- Mounting plate
- Support pins for handrail brackets
- Carrying handle
- Cross-bar bracket
- Pipe plug
- Post caps
- Klöpper-formed stainless steel bottoms
- Ronden
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Pipe bends
- 90-degree elbow (welded fittings, Type 3 DIN)
- 45-degree elbow (welded fittings, Type 3 DIN)
- 180-degree elbow (welded fittings, Type 3 DIN)
- 90-degree elbow (welded fittings, Type 2 DIN)
- 90-degree elbow (welded fittings, Type 5)
- Pipe bends, special-angle fittings, welded fittings
- 90-degree elbow welded fittings
- T-piece welded fittings
- Connector, welded fittings
- Cross-piece welded fittings
- Connectors
- Decorative fittings
- Wall anchors | Floor anchors
- Clamping profile
- Glass and door systems
- LED handrail
- Balls | Cones | Cubes
- Stainless steel tubes | Bar stock
- Grooved pipes
- Push-fit fittings / End caps for grooved pipes
- Home | Garden
- Door construction | Door locks | Door handles
- Stainless steel cables | Wire rope clamps | Accessories
- Marine | Boat supplies
- Accessories | Screws | Adhesives
- Black Lane – Powder-coated stainless steel parts
- Sliding glass door
- BRENK-fix® Base Holder
- RAIL FIX Installation Guide
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wrought iron
- Caps
- Anchor plates
- Weld-on strips
- Weld-on brackets
- Baroque programme
- letters
- Drive-in plug
- Flat-rolled steel, unworked
- Handrail brackets + accessories
- House numbers
- balls
- Plastic handrails
- Rings | Crosses
- Ronden
- Locks | Door handles | Other accessories
- Bar stock
- pipe bend
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Door hinges
- Gate hinge with welded sleeve
- Door hinge with slotted plate
- Door hinge with a long thread
- Door hinges, 4-way adjustable
- Self-closing gate hinges
- Threaded sleeves for gate hinges – spares & accessories
- with a weld-on plate
- Up-and-over door fittings
- Adjustable wall plates for gate hinges
- Brass washers for hot-dip galvanised gate hinges
- Eye bolts, sold individually, for gate hinges
- for embedding in concrete
- with a hinged flap
- with a wall plate
- Fence posts
- fence posts
- Decorative strips
- Enamel and paints
- Blacksmithing Basic Line
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Grating steps
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Grating
- Light well grating, building standard grating
- Grating fixing
- Grating, grating for channels, suitable for vehicle traffic
- Industrial grating
- Press-welded grating
- Press-Podestroste mit Antrittskante
- Safety toe cap
- Door frames
- Boat jetty
- Custom-made grating
- SEPGRATE designer covers
- Pulverbeschichtung für Gitterroste
- GRP
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Marine | Boat accessories
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Sliding gate fittings
- Sliding gate fitting 0 | Gate weight per leaf up to 90 kg
- Sliding gate fitting 1 | Gate weight per leaf up to 200 kg
- Sliding gate fitting 2 | Gate weight per leaf up to 400 kg
- Sliding gate fitting 3 | Gate weight per leaf up to 600 kg
- Sliding gate fitting 4 | Gate weight per leaf up to 1200 kg
- Sliding gate fitting 5 | Gate weight per leaf up to 2000 kg
- Full range
- Fits all sizes 1 to 5
- Cast iron rollers for sliding gates
- Freitragende Schiebetore (Kragarm)
- Bodengeführte Schiebetore
- Torantriebe & Steuerung
- Zubehör Schiebetor
- Schlösser & Riegel
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Sealing plugs and protective caps
- Aluminium fences and aluminium gates
- New arrivals
Filter products
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
Available, : Lieferzeit 5-10 Werktage
The professional way to extend tubes: our stainless steel tube connectors for welding. This solid fitting is inserted into the ends of the tubes (flush-mounted) and serves as the perfect centring device for a stable and straight welded joint in stainless steel tubes (e.g. 42.4 mm) in V2A and V4A grades.
How it works: Recessed rather than butt-jointed
Unlike conventional methods, where pipes have to be held in place loosely ‘butt-to-butt’, this connector provides internal guidance.
How it works (illustrated):
- The tenon: The turned ends fit exactly into the respective pipe (interference fit).
- The stop (flange): There is often a small flange or thickened section in the centre. This automatically ensures the correct welding gap between the pipes.
- The result: The pipes are automatically centred and aligned straight. You simply weld the gap over the solid core.
The advantages of this design
- Enormous strength: As the solid connector remains inside, the joint is often stronger than the pipe itself. It is almost impossible for the weld to fail.
- No burn-through: The solid steel core prevents you from accidentally ‘burning through’ the thin-walled tube whilst welding. It acts as a weld pool protection.
- Invisible finish: Once the weld has been completed and the seam ground down, the connector is no longer visible from the outside. Your handrail looks as though it is made from a single piece.
Technical details
Designed for standard wall thicknesses (e.g. 42.4 x 2.0 mm). The connector has the appropriate diameter to fit snugly into the tube.
Available in V2A (AISI 304) and V4A (AISI 316) – choose the material to match your tubes to prevent contact corrosion.
Installation tip: Tap the connector into place → push the tubes together as far as they will go → weld the V-seam → grind smooth.