Emsal Vana
Products / Flanges and pipe fittings · 390–419 / Butt-weld cap
PRODUCT GROUP 402 · FLANGES AND PIPE FITTINGS

Butt-weld cap

Butt-weld caps close pipe ends permanently and safely. They are used for line terminations, pressure testing and closing lines that will be extended later. Their strength makes them the choice for high pressures, high temperatures and corrosive media.

BUTT-WELD CAPTYPE 402 · EMSAL VANA
DN
15 – 1000
PN
6–63
MATERIAL
SS316 · SS304
STANDARD
DIN·ASME
CONNECTION
ASME B16.9
TEST
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Butt-weld cap

Technical data

01
Nominal sizeDN15 – DN1000
Pressure ratingPN6 – PN63
StandardDIN · ASME
Connection typeWelded
DesignASME B16.9ASME B16.9Factory-made wrought buttwelding fittings DIN 2617 EN 10253EN 10253Butt-welding pipe fittings
End connection standardASME B16.9ASME B16.9Factory-made wrought buttwelding fittings DIN 2617 EN 10253EN 10253Butt-welding pipe fittings

The standards listed apply to stocked products. Contact us for other standards.

Material

02
Material
SS316SS304St37

Features

03

Design

  • Butt-welded to the end of the pipeline.
  • Dome-shaped and convex, which increases resistance to internal pressure.
  • Diameter and wall thickness follow the relevant pipe standard and pressure class.
  • Manufacture: seamless → for high-strength systems; welded → for economical applications.

Advantages

  • Provides a leak-tight end closure.
  • High strength against internal pressure and mechanical loads.
  • Long-lasting and maintenance-free.
  • Manufactured to standards such as ASME B16.9, DIN 2617 and EN 10253.

Considerations

  • Surface preparation before welding is important; clean, even mating surfaces are required.
  • Verify weld quality with NDT (radiography, ultrasonic testing).
  • Check material certificates and compliance with the standard.
  • Choose cap shape and thickness to suit system pressure and temperature.

Downloads

04
DatasheetPDF · TR · dimension and weight table
IN PREPARATION
CAD modelSTEP · DXF · by nominal size
IN PREPARATION
3.1 certificate samplePDF · EN 10204 · TR/EN
Open sample

Related products

05
Butt-weld cap · 402 · SS316 · DN15–DN1000 · PN6–PN63