Concentrated sulfuric acid is highly corrosive. Lined gate valves address this by lining all wetted parts—body, gate, and stem—with fluoroplastics like FEP (F46) or PFA. This isolates the metal from

In high‑chloride environments like seawater desalination and offshore platforms, duplex stainless steel (2205/2507) offers superior resistance to chloride stress corrosion cracking and pitting, with

In petrochemical, gas transmission, and pharmaceutical plants, explosion-proof electric gate valves are essential for safe shut-off. CT6 (Exd IIC T6) is the highest protection level – suitable for hy

For liquid nitrogen, LNG, and ethylene services at -196°C, standard carbon steel (WCB) and low‑temperature steel (LCB/LCC) become brittle. Austenitic stainless steel (304/316L) is mandatory.

Hastelloy (C-276/C-22) is the top choice for strong acids (hydrochloric, sulfuric, hydrofluoric), alkalis, and mixed corrosive media. DN65 (2.5″) is common in chemical, pharmaceutical, and hydrometal

Bronze gate valves resist seawater corrosion and biofouling, making them the classic choice for ship piping. Tin bronze (ZCuSn10Zn2) is cost‑effective; nickel‑aluminum bronze (C95800) offers higher

For strong acids (sulfuric, hydrochloric, hydrofluoric), alkalis, and organic solvents, a lined gate valve combines carbon steel strength with FEP (F46) fluoroplastic inertness. DN100 (4″) is common

For water, HVAC, and general industrial lines following Japanese standards, the DN80 (3″) JIS 10K cast iron gate valve is a common choice. But do not confuse 10K with PN16 – their flanges are not in