Huawei engineer: “We installed them and moved straight to the next phase.” When a critical Huawei project was halted by out-of-spec valves from another supplier, JRVAL delivered a solution in just 48 hours.

JRVAL's comprehensive quality control process for butterfly valves includes casting, machining, assembly, and pressure testing, ensuring zero-leakage performance with 20 years of industrial experience.

View our EN 10204 3.1 Certificate sample for Lug Butterfly Valves. Verified chemical analysis, API 598 pressure tests & full material traceability.

A source manufacturer's guide to valve machining. See the 4-stage journey from raw casting to precision-machined, pressure-tested valves for quality.

A complete engineering guide comparing Chemical Composition, Mechanical Properties, and Applications of standard and exotic valve body materials.

This guide decodes P&ID butterfly valve symbols for engineers, preventing specification errors and ensuring project accuracy.

An engineering comparison of semi-lug and full-lug butterfly valves, covering installation, dead-end service, and bolt specifications.

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