SF6 anti-mislock valve control three-way valve group

SF6 anti-mislock valve control three-way valve group (Winfoss- A21-3D)

No disassembly for online verification and detection, anti-mislocking mechanism, and can be paired with various specifications of switch interfaces at home and abroad!

Overview

SF6 anti-mislock valve-controlled three-way device (Winfoss-A21-3D) is mainly used in high-voltage equipment in the power industry that uses SF6 gas as the arc extinguishing medium. On and off, so as to realize the on-line verification and replacement of the equipment body's inflation, air supply and SF6 density relay controller. The product is equipped with an anti-mistake mechanical lock to prevent the equipment from being operated during operation and ensure the safety and reliability of the equipment during operation.

The installation of SF6 density relay anti-mislock valve-controlled three-way device is in accordance with Article 13.1.6 of "The 25 Key Requirements of the National Energy Administration on Preventing Electric Power Production Accidents" (Guo Neng Security [2014] No. 161): Six The connection between the sulfur fluoride density relay and the switchgear body should meet the requirements of not disassembling the verification density relay.

Applications

SF6 anti-mislock valve-controlled three-way device is mainly suitable for the electric power industry to meet the requirements of on-line inspection and verification of the density relay without disassembly, and is equipped with an anti-mislock mechanical device to prevent the equipment from being misoperated during operation.

Features

• It can be paired with switch interfaces of various specifications at home and abroad.
• It is convenient to check the SF6 high voltage switch density relay, to measure gas, micro water, decomposition products and purity.
• The manual valve is simple and flexible to operate, and has the function of preventing misoperation.  
• The valve body is made of stainless steel.
• The inside of the valve body is filled with high-purity SF6 gas with pressure > 0.4MPa.

Technical indicators

• Pressure rating: PN64.
• Sealing performance: absolute air leakage rate ≤ 1×10-15Pa.m3/s.
• Impact resistance: 600m/s2, impact time: 11ms.
• Corrosive environment test: IEC60068-2-11 standard test.  
• Ambient temperature: -50～+100℃.
• Life: 100,000 times (on-line detection valve switching times).

Service Guarantee

• Provides live installation demonstration operation.
• Provide detailed Chinese manual and user guide.
• One year free warranty, lifetime spare parts support and maintenance.
• The hotline is available 365 days a day to answer user inquiries.