Dutchwerk

Pipeline Integrity

Permanent Bolted Sleeve

A solution designed to repair damage and permanently strengthen Offshore and Onshore pipelines.

Permanent Bolted Sleeve

A proven methodology for issues that put pipeline integrity at risk

  • Wall loss.
  • Corrosion.
  • Cracks.
  • Leaks.

Technical specifications

Sleeve body

ABS GRADE EH36 OR EN10225 S355 OR EQUIV.

Flange length

ABS GRADE EH36 OR EN10225 S355 OR EQUIV.

Transition flanges

ABS GRADE EH36 OR EN10225 S355 OR EQUIV.

Final closure flange

ABS GRADE EH36 OR EN10225 S355 OR EQUIV.

Load grip

ABS GRADE EH36 OR EN10225 S355 OR EQUIV.

Circumferential bolts

ASTM A193 GRADE B7

Longitudinal bolts

ASTM A193 - B7

Nuts

ASTM A194 GRADE 2H

Longitudinal NBR seals

NBR (Nitrile-butadiene rubber) BS EN 682:2002

Polymeric closure seals

GRAPHITE + POLYURETHANE POLYMER

Aluminum rings

ALUMINUM 6061

El servicio incluye:

Design and Engineering

Design and Engineering

Finite Element Analysis

Finite Element Analysis

Manufacturing

Manufacturing

Welding and Machining

Welding and Machining

Hydrotest

Hydrotest

Training

Training

Success stories

International — 1

International

1 / 8

CENAGAS 2024 — 1

CENAGAS 2024

36" bolted sleeve — active leak

1 / 9

PEP/DIAVAZ 2025 — 1

PEP/DIAVAZ 2025

PEMEX 36" bolted sleeve

1 / 6

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