System Overview

kstone is a recommended manufacturer of mixed gas equipment for China State Grid, according to the 2022 (290) document.

Technical Configuration Table

Operational Capabilities

• Gas Mixing Precision: Achieves 3:7 SF6/N2 ratio tolerance within ±0.5%
• Environmental Applications: Supports low-GWP gas mixtures for GIS switchgear
• System Functions: Vacuum pumping (≤10Pa), dynamic gas blending, high-pressure charging (up to 5MPa)

Equipment Specifications

Manufacturer of SF6 testing instruments and equipment with the most complete range of products from China, with 13 years of professional experience

Company Profile

Leading SF6 testing equipment manufacturer (with over 1000 customers all over the world)

Passed ISO9001 new version certification

Double soft certification enterprise

National level high-tech enterprise, specialized and innovative enterprise, national level technology-based small and medium-sized enterprise

National standard: "GB/T11023-2018 High voltage switchgear - SF6 gas sealing test method" standard formulation

Industry Standard of the Energy Administration of the People's Republic of China: "DL/T1366-2023 Sulfur Hexafluoride Gas for Power Equipment" Revision Unit

Industry Standard of the Energy Administration of the People's Republic of China: DL/T2756-2024 Guidelines for Detection and Recovery of Sulfur Hexafluoride and Its Mixtures for Electrical Equipment Participating Units

Industry Standard of the Energy Administration of the People's Republic of China: DL/T1353-2024 Technical Specification Standard for Sulfur Hexafluoride Treatment System Participating Units

Group Standard: Technical Specification and Standard for Perfluoroisobutyronitrile Gas Replenishment Device Participating Units

Recommended manufacturer of SF6 mixed gas GIS tools for State Grid Corporation of China (2022) No. 290.

Member of China Electrical Equipment Industry Association and China Fluorosilicon Organic Materials Industry Association.

SF6 leak detector, dew point meter, comprehensive testing instrument, recovery vacuum separation and purification device, mixed gas filling device; C4F7N gas instruments and equipment.