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{"title":"KS30 SF6 Comprehensive Tester: Dew Point, Purity & Decomposition Gas Detection with Customizable Modules","imgUrl":"https:\/\/img.chinax.com\/nimg\/5f\/f9\/e828956f6e426bb1208cbf953ce6-200x200-1\/ks30_sf6_comprehensive_tester_3a_dew_point_2c_purity_26_decomposition_gas_detection_with_customizable_modules.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS30","Place of Origin":"Shanghai","Price":"$9800-$12000"}}
{"title":"Portable Quantitative SF6 Leak Detector Gas Sensor 0.01ppm Sensitivity With Telescopic Handle","imgUrl":"https:\/\/img.chinax.com\/nimg\/32\/ed\/e1b965695d2429d0aae0f0d0e681-200x200-1\/portable_quantitative_sf6_leak_detector_gas_sensor_0_01ppm_sensitivity_with_telescopic_handle.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"LF-302","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"SMART-01B SF6 Leak Detector with Corona Detection Technology and 3 g\/yr Sensitivity for Portable Handheld Refrigerant Leak Testing","imgUrl":"https:\/\/img.chinax.com\/nimg\/da\/55\/e92b6f0659ba6262340e39a62547-200x200-1\/smart_01b_sf6_leak_detector_with_corona_detection_technology_and_3_g_2fyr_sensitivity_for_portable_handheld_refrigerant_leak_testi.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"SMART-01B","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"Cold Mirror Method, Portable Dew Point Meter, High-Precision Dew Point Meter [KST-V]","imgUrl":"https:\/\/img.chinax.com\/nimg\/50\/ad\/1a1cabe6640f597de45c65b9bfe9-200x200-1\/cold_mirror_method_2c_portable_dew_point_meter_2c_high_precision_dew_point_meter_5bkst_v_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KST-V","Place of Origin":"Shanghai","Price":"$8000-$10000"}}
{"title":"SF6 Online Leak Alarm System [KS100] - Monitors SF6, O2, Temp & Humidity With Alarm & Remote Monitoring\uff0cInfrared principle sensor","imgUrl":"https:\/\/img.chinax.com\/nimg\/c3\/36\/49f605875290a67893283b6cd966-200x200-1\/sf6_online_leak_alarm_system_5bks100_5d_monitors_sf6_2c_o2_2c_temp_26_humidity_with_alarm_26_remote_monitoring_ef_bc_8cinfrared_pr.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS100","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"Remove Moisture From The Gas Box In A Continuously Powered State, Do Not Cut Off Power When Dry [KS3000-YZ]","imgUrl":"https:\/\/img.chinax.com\/nimg\/84\/6d\/c1e3e962431b0c6ac7d176741da0-200x200-1\/remove_moisture_from_the_gas_box_in_a_continuously_powered_state_2c_do_not_cut_off_power_when_dry_5bks3000_yz_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS3000-YZ","Place of Origin":"Shanghai","Price":"$27000-$28000"}}
{"title":"Automatic Gas Mixing Unit Distribution Dilution Device System, Flow Meters [KS3000-N]","imgUrl":"https:\/\/img.chinax.com\/nimg\/37\/1a\/bbc3b8eda25012a0e3d90022c839-200x200-1\/automatic_gas_mixing_unit_distribution_dilution_device_system_2c_flow_meters_5bks3000_n_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS3000-N","Place of Origin":"Shanghai","Price":"$2000-$100000"}}
{"title":"14l Automatic Refrigerant Recovery Machine 134a\/12 For Auto Repair Shops [AC1000]","imgUrl":"https:\/\/img.chinax.com\/nimg\/56\/6a\/95e521dea4603c57809277b88e77-200x200-1\/14l_automatic_refrigerant_recovery_machine_134a_2f12_for_auto_repair_shops_5bac1000_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"AC1000","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"KS-139T Air-Conditioner-Specific Leak Detector","imgUrl":"https:\/\/img.chinax.com\/nimg\/01\/10\/07ba0bbf8fd98a0a3e5e56346995-200x200-1\/ks_139t_air_conditioner_specific_leak_detector.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS-139T","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"High Precision Pressure Gauge, Dry Air Inflation Kit, Density Relay, Safety Valve [KSCQ-5G]","imgUrl":"https:\/\/img.chinax.com\/nimg\/e0\/12\/89c5bf53a43b88598d5250938b8d-200x200-1\/high_precision_pressure_gauge_2c_dry_air_inflation_kit_2c_density_relay_2c_safety_valve_5bkscq_5g_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KSCQ-5G","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"Live Insulator Fault Partial Discharge Detector Tester 6kV-500kV With Laser Aiming [KS9001]","imgUrl":"https:\/\/img.chinax.com\/nimg\/f4\/f0\/9b6330d4ea3ee15cece91898e129-200x200-1\/live_insulator_fault_partial_discharge_detector_tester_6kv_500kv_with_laser_aiming_5bks9001_5d.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS9001","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"KS30-CS SF6 Gas Tester - High Accuracy Dew Point Purity Analyzer for SEA Power & Chemical Industries","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/64\/61a84475d03ca2e905f46362cd46-200x200-1\/ks30_cs_sf6_gas_tester_high_accuracy_dew_point_purity_analyzer_for_sea_power_26_chemical_industries.jpg","attrs":{"Brand Name":"KSTONE","Model Number":"KS30-CS","Certification":"ISO9000","Place of Origin":"Shanghai"}}
{"title":"Helium Hydrogen Mass Spectrometer Leak Detector High Sensitivity Fast Response Automatic Mobile Leak Detector For Industrial KSNH-400","imgUrl":"https:\/\/img.chinax.com\/nimg\/6f\/9c\/8c7c67359bd7d9cdd210da7d5504-200x200-1\/helium_hydrogen_mass_spectrometer_leak_detector_high_sensitivity_fast_response_automatic_mobile_leak_detector_for_industrial_ksnh_.jpg","attrs":{"Brand Name":"Kstone","Model Number":"KSNH-400","Certification":"ISO9000","Place of Origin":"Shanghai"}}
KSTONE is a professional manufacturer specializing in SF6 testing instruments, gas handling equipment, and eco-friendly gas solutions for the global power industry.
With over 13 years of professional experience, KSTONE has become one of the leading manufacturers in China with one of the most complete product ranges in the SF6 industry.
We provide reliable equipment and technical solutions for GIS manufacturers, switchgear companies, electrical utilities, high-voltage testing organizations, and industrial maintenance service providers worldwide.
Today, KSTONE products serve more than 1000 customers across global markets.
Our Product Range
Our main products include:
SF6 Leak Detectors
SF6 Dew Point Meters
SF6 Comprehensive Testing Instruments
SF6 Recovery, Vacuum, Separation & Purification Systems
SF6 Mixed Gas Filling Devices
Density Relay Calibration Equipment
Vacuum Pumping Systems
C4F7N Gas Instruments & Equipment
Eco-Friendly Gas Handling Solutions
All products are designed for industrial applications in GIS, switchgear, and power equipment maintenance.
Certifications & Qualifications
KSTONE has obtained:
ISO9001 Quality Management System Certification
National High-Tech Enterprise Certification
Specialized & Innovative Enterprise Certification
National Technology-Based SME Certification
Double Soft Certification Enterprise
These recognitions reflect our continuous investment in technology, product development, and manufacturing quality.
Industry Standards Participation
KSTONE actively participates in the development and revision of national and industry technical standards for SF6 and environmentally friendly gas technologies.
National Standard Participation
GB/T11023-2018 High Voltage Switchgear — SF6 Gas Sealing Test Method
Industry Standards of the Energy Administration of the People’s Republic of China
DL/T1366-2023 Sulfur Hexafluoride Gas for Power Equipment
DL/T2756-2024 Guidelines for Detection and Recovery of Sulfur Hexafluoride and Its Mixtures for Electrical Equipment
DL/T1353-2024 Technical Specification Standard for Sulfur Hexafluoride Treatment Systems
Group Standard Participation
Technical Specification Standard for Perfluoroisobutyronitrile (C4F7N) Gas Replenishment Devices
Industry Recognition
Recommended Manufacturer of SF6 Mixed Gas GIS Tools for State Grid Corporation of China (2022 No.290)
Member of China Electrical Equipment Industry Association
Member of China Fluorosilicon Organic Materials Industry Association
Trusted By / Our Customers
Supporting global customers in power transmission and gas handling applications.
Our Mission
KSTONE is committed to providing reliable, efficient, and environmentally responsible gas handling solutions for the global power industry.
We continue to focus on SF6 management technologies and next-generation eco-friendly gas applications to support safer and greener electrical systems worldwide.
Basic Information
Company Name:
Shanghai Yushi Technology Development Co., Ltd.
Business Type:
Manufacturer
Brands:
KSTONE
Employee Number:
40~60
Year Established:
2013
Total Sales Annual:
500,00,00-600,00,00
Company Location:
8B, No. 9, Lane 123, Shenmei Road, Zhangjiang High tech Park, Pudong New Area, Shanghai
Factory Location:
Building A, No. 4458 Nanfeng Road, Fengxian District, Shanghai
Trade & Market
Company slogan:
Shanghai Kstone S&T Development Co .,LTD.
OEM Overview:
OEM & ODM Service
We support OEM and ODM cooperation for SF6 gas recovery, purification, evacuation and testing equipment.
From logo customization to complete system development, our engineering team can provide flexible solutions based on customer requirements.
Production Line:
In-House Manufacturing
KSTONE operates a modern production workshop for SF6 gas handling and electrical testing equipment.
R&D:
Engineering & R&D
Our engineering team focuses on SF6 gas handling technology, automation control and equipment reliability improvement.
We continuously optimize gas recovery efficiency, vacuum performance and intelligent control systems for power industry applications.
