Bolted Bonnet Gate Valves

A bolted bonnet gate valve is a classic multi-turn linear-motion isolation valve featuring a heavy-duty body-to-bonnet flange joint secured by high-tensile studs and nuts with a embedded gasket seal, designed for easy field disassembly, inspection, and maintenance. The bolted bonnet construction provides high structural stability and dependable leak-tight containment across low-to-medium pressure ratings (Class 150 to Class 600 LB), allowing for straightforward wedge and seat replacement during routine turnarounds. Conforming to standards like API 600, ASME B16.34, and BS 1414, these widely deployed isolation valves are standard specifications across oil and gas refineries, chemical manufacturing units, and utility steam plants, allowing maintenance managers to secure reliable, repairable shut-off by importing certified bolted bonnet gate valves directly from leading manufacturers in China via our advanced B2B commercial platform.