jasonsong889@gmail.com

Diagram showing the three conditions that cause hydrogen cracking in pipeline welding: diffusible hydrogen, tensile stress, and a hard susceptible microstructure

How to Prevent Hydrogen Cracking in Pipeline Welding

Để lại bình luận / Blog / Bởi

Hydrogen cracking in pipeline welding is the delayed cold cracking failure that occurs when diffusible hydrogen, a hard susceptible microstructure, and tensile stress act together in a finished weld. You prevent it by using low-hydrogen consumables, correct preheat, interpass control, and delayed inspection so hidden cracks cannot reach service. This guide explains the hydrogen cracking mechanism, the three conditions that

How to Prevent Hydrogen Cracking in Pipeline Welding Read More »

Infographic showing the five core NDT methods used in pipeline welding inspection: visual testing, radiographic testing, ultrasonic testing, magnetic particle testing, and liquid penetrant testing applied to a pipeline girth weld

Pipeline Welding Inspection Checklist: NDT Methods for Quality Assurance

Để lại bình luận / Blog / Bởi

A pipeline welding inspection checklist is a stage-by-stage quality plan that verifies every girth weld against the acceptance criteria of the governing code before final pipeline inspection and commissioning. It pairs visual examination with non-destructive testing (NDT) methods, specifically radiographic testing (RT), ultrasonic testing (UT), magnetic particle testing (MT), and liquid penetrant testing (PT), to

Pipeline Welding Inspection Checklist: NDT Methods for Quality Assurance Read More »

Welding technician performing in-service pipeline welding on a pressurized live pipeline with hot tap fittings and equipment

Complete Guide to In-Service Pipeline Welding

Để lại bình luận / Blog / Bởi

In-service pipeline welding is the controlled practice of welding onto a pressurized pipeline while it remains in operation, typically for hot tapping, line stopping, and repair connections that would otherwise force a shutdown. To weld on a live line safely, you must qualify the procedure for the actual service conditions, measure the remaining wall thickness,

Complete Guide to In-Service Pipeline Welding Read More »

Infographic comparing API 1104 and ASME B31.3 application scopes: cross-country pipeline welding on one side and in-plant process piping on the other

API 1104 vs ASME B31.3: Which Standard Applies to Your Pipeline Project?

Để lại bình luận / Blog / Bởi

Deciding between API 1104 vs ASME B31.3 comes down to one question: where does your pipe sit? ASME B31.3 applies to process piping inside facilities such as refineries, chemical plants, and power stations, while API 1104 governs the field welding of cross-country pipelines built to ASME B31.4 or ASME B31.8; when a project combines both,

API 1104 vs ASME B31.3: Which Standard Applies to Your Pipeline Project? Read More »

burn through prevention live pipeline welding cover

How to Prevent Burn-Through When Welding Live Pipelines

Để lại bình luận / Blog / Bởi

Burn-through is the failure that occurs when the weld pool melts through the remaining pipe wall of a live pipeline and the internal pressure blows out the weakened area. To prevent burn-through when welding live pipelines, you must verify the remaining wall thickness first, weld to a qualified in-service welding procedure, keep heat input low

How to Prevent Burn-Through When Welding Live Pipelines Read More »

ASME superheated steam leak repair clamp JSW installation

ASME-Compliant Steam-Leak Repair Clamps for Refinery Piping: 400°C+ and 5MPa Engineering Guide

Để lại bình luận / Blog / Bởi

For refinery interconnecting piping handling superheated steam at 400°C+ and 5MPa, ASME Section VIII or PCC-2 compliant engineered leak repair clamps are the only certified mechanical solutions for live containment without plant shutdown. Standard elastomeric repair methods fail under these extreme thermal loads, requiring specialized graphite or mica-based sealing systems to manage thermal expansion and prevent “steam

ASME-Compliant Steam-Leak Repair Clamps for Refinery Piping: 400°C+ and 5MPa Engineering Guide Read More »

JSW high-pressure clamp with RGD-resistant seals for sCO2 pipeline repair.

sCO2 Pipeline Leak Sealing: RGD Resistance & Clamp Guide

Để lại bình luận / Blog / Bởi

Supercritical CO2 (sCO2) pipeline leak sealing is achieved by installing structural mechanical clamps integrated with NORSOK M-710 certified RGD-resistant seals. For CCUS infrastructure, these seals must withstand phase-change pressures exceeding 74 bar (1,070 psi). The primary sealing mechanism involves controlled radial compression that neutralizes the “explosive decompression” effect of sCO2, ensuring long-term integrity in high-pressure transport environments. This guide provides

sCO2 Pipeline Leak Sealing: RGD Resistance & Clamp Guide Read More »

Industrial 316L stainless steel repair clamp on carbon steel pipe with NACE-compliant dielectric insulation buffer.

Làm thế nào để ngăn ngừa hiện tượng ăn mòn điện hóa ở các kẹp thép không gỉ trên đường ống thép cacbon?

Để lại bình luận / Blog / Bởi

Are you facing accelerated pipe thinning where you’ve installed stainless steel clamps? The underlying risk of Galvanic Corrosion Stainless Steel Clamps on carbon steel systems is often underestimated. To protect refinery assets, the definitive solution is dielectric isolation per NACE SP0169, utilizing non-conductive buffers like EPDM or PTFE to break the electrochemical circuit. This comprehensive guide provides technical

Làm thế nào để ngăn ngừa hiện tượng ăn mòn điện hóa ở các kẹp thép không gỉ trên đường ống thép cacbon? Read More »

Kẹp sửa chữa kết cấu chịu tải nặng dành cho các đường ống dẫn dầu dưới biển đang được lắp đặt bởi một thiết bị ROV chuyên dụng trên đáy biển sâu, có vỏ kim loại chịu áp suất cao.

Xác định kích thước và thiết kế kẹp sửa chữa kết cấu chịu tải nặng cho đường ống dẫn dầu dưới biển chịu áp suất thủy tĩnh bên ngoài cao

Để lại bình luận / Blog / Bởi

What is the Correct Sizing for a Subsea Pipeline Repair Clamp in High-Pressure Environments? Sizing a subsea pipeline repair clamp for deepwater (>1,000m / 3,280 ft) requires calculating the specific pressure differential between internal fluids and external hydrostatic head. In deepwater environments exceeding 1,000 meters, this sizing process is primarily dictated by the external hydrostatic pressure and the pressure

Xác định kích thước và thiết kế kẹp sửa chữa kết cấu chịu tải nặng cho đường ống dẫn dầu dưới biển chịu áp suất thủy tĩnh bên ngoài cao Read More »

Engineered bolt-on leak repair clamp vs welded repair sleeve comparison chart highlighting differences in installation time, hotwork requirements, reusability, and cost-effectiveness for industrial pipe repair strategies.

Kẹp sửa chữa rò rỉ kiểu bắt vít so với ống bọc hàn: Tiêu chí lựa chọn theo tiêu chuẩn ASME PCC-2 và API 570

Để lại bình luận / Blog / Bởi

1. Quick Decision: When to Choose Bolt-On Clamps over Welded Sleeves? The core answer for pipeline integrity engineers: Use Engineered Bolt-On Clamps (designed per ASME Section VIII and ASME PCC-2 Article 2.1) whenever hot work is prohibited or the remaining wall thickness (t_rem) is below 3.2mm (1/8 in). These clamps provide a 100% cold-work solution that restores 100% MAWP without the risk of burn-through.

Kẹp sửa chữa rò rỉ kiểu bắt vít so với ống bọc hàn: Tiêu chí lựa chọn theo tiêu chuẩn ASME PCC-2 và API 570 Read More »