Titanium (TA2/Gr2) is the premier material for seawater service. Its dense oxide film gives nearly zero corrosion in marine environments, making it the top choice for offshore platforms, ships, and de

In LNG, ethylene, air separation, and refrigeration systems, valves must withstand -46°C or lower. Standard carbon steel (e.g., WCB) becomes brittle below -29°C, so low-temperature steel (LCB/LCC) i

Hastelloy (C-276/C-22) is the top material for strong acids, alkalis, and mixed corrosive media. DN65 (2.5″) valves are widely used in chemical, pharmaceutical, and hydrometallurgical plants. Below a

A gate valve that seals “bubble‑tight” is ideal, but in real engineering, a certain amount of leakage is allowed. Knowing leakage classes avoids misjudging valve quality and helps you troubleshoot

Ductile iron gate valves are the preferred valve for DN150 municipal water pipelines due to their high strength, corrosion resistance, and low cost. Grade QT450-10 ductile iron offers tensile strength

The SS316L non‑rising stem gate valve DN80 (3″) is ideal for space‑limited piping in corrosive services. Its stem does not lift, saving headroom.

Some gate valves pass the pressure test but leak as soon as they go into service. The problem is often not the valve quality, but incorrect installation or operation.

Gate valves are often considered bidirectional. Many think direction doesn’t matter. But installing a gate valve backwards brings three real problems.