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What is the difference between oil-lubricated vacuum pumps and oil-free diaphragm pumps?
2026年07月17日 10時05分46秒

While both generate a vacuum, oil-lubricated pumps and oil-free diaphragm pumps differ significantly in their operating principles, advantages, and applications. Oil-lubricated pumps are typically chosen when a system requires a deep vacuum and strong suction power, whereas diaphragm pumps are preferred for laboratories, chemical processes, and environments where oil vapors must be avoided

Why is the vacuum pump making a loud noise? 6 common causes and how to fix them immediately
2026年07月17日 09時36分33秒

A vacuum pump making louder-than-normal noise often points to issues with the rotating assembly, vanes, pump oil, filters, or the intake piping. The specific sound produced helps narrow down the cause: a sustained whistling sound differs from the rattling inside the pump chamber or a heavy, grinding noise accompanied by strong vibration

Chính thức bỏ đề xuất sở hữu chung cư có thời hạn - Sử dụng nhà ở dựa trên kiểm định thực tế
2026年07月16日 11時35分52秒

Trong dự thảo Luật Nhà ở sửa đổi mới nhất, Bộ Xây dựng đã chính thức loại bỏ đề xuất "Sở hữu chung cư có thời hạn". Người mua căn hộ sẽ không bị giới hạn quyền sở hữu theo số năm. Nhưng công trình vẫn phải được đánh giá định kỳ và có phương án nhằm bảo đảm an toàn cho người sử dụng.

Đừng Lát Sàn Gỗ Nếu Chưa Đo Độ Ẩm Nền Bê Tông
2026年07月15日 14時58分59秒

Máy đo độ ẩm bê tông được thực hiện ngay trước khi thi công thay vì chờ đến khi phát sinh hư hỏng. Chỉ mất vài phút kiểm tra nhưng có thể tránh được việc tháo dỡ và thay thế toàn bộ sàn sau này.

Which Vacuum Pump Should You Choose for a Microbiology Lab to Avoid Affecting Samples?
2026年07月15日 14時45分07秒

Vacuum pumps are utilized in a wide range of microbiology laboratory procedures, from membrane filtration and the aspiration of supernatants following centrifugation to sample concentration and the support of negative-pressure systems. Selecting the appropriate pump not only ensures more stable operational processes but also minimizes the risk of sample contamination, reduces maintenance costs, and extends the equipment's lifespan

QCVN 25:2025/BKHCN Takes Effect: Do Businesses Need to Prepare Electrical Safety Testing Equipment?
2026年07月15日 09時15分04秒

Electrical safety is consistently one of the primary criteria evaluated before electrical or electronic equipment—or industrial components—are released to the market. A product may operate reliably yet still fail to meet requirements if its insulation lacks sufficient durability, its grounding resistance exceeds permissible limits, or leakage current occurs during operation.

Wood Moisture Metert Determine the Lifespan of Furniture
2026年07月14日 16時31分47秒

Controlling wood moisture is not simply about drying timber as much as possible. Different wood species and applications require different wood moisture standards to achieve a state of equilibrium with their surrounding environment.

How to Check Wall Moisture Before Painting
2026年07月14日 15時17分56秒

What is the ideal wall moisture level before painting? Learn the recommended moisture threshold, how to measure it with a wall moisture meter, and the key factors that affect paint adhesion and long-term durability.

Why Is Associated Research Considered an Icon of Hipot Technology?
2026年07月14日 09時05分30秒

When it comes to electrical safety testing equipment specifically Hipot testers—many QA/QC and testing engineers are familiar with the globally renowned brand Associated Research. A subsidiary of the parent company IKONIX, Associated Research (ARI) invented the world's first commercial Hipot tester.

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