Globe valve_SF6 density relay globe valve device

Overview

Globe Valve_SF6 Density Relay Globe Valve_SF6 Density Relay Globe Valve Device (Winfoss-A21-3IN) is mainly used in high-voltage equipment in the power industry that uses SF6 gas as the arc extinguishing medium. By operating the knob on the online detection valve, the valve is realized. Connect and disconnect the gas circuit with the equipment body, 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.

According to Article 13.1.6 of "The Twenty-Five Key Requirements of the National Energy Administration on Preventing Power Production Accidents" (Guo Neng Security [2014] No. 161): the connection between the sulfur hexafluoride density relay and the switchgear body The method should meet the requirement of not disassembling the verification density relay.

WINFOSS-A21-3IN series SF6 density relay online verification three-way valve is mainly used in high-voltage equipment in the power industry that uses SF6 gas as the arc extinguishing medium. The SF6 density relay verification three-way valve is operated by operating the handle knob on the three-way valve. Realize the opening and closing of the three-way valve and the gas path of the equipment body, so as to realize the on-line verification and replacement of the equipment body's inflation, air supply and SF6 density controller.

2. Main indicators

1. Pressure class: PN68;

2. Sealing performance: absolute air leakage rate ≤1×10-9Pa.m3/s;

3. Impact performance: 600m/s2, impact time: 11ms

4. Operating life: 105 times;

5. Ambient temperature: -40～+75℃.

3. Operation Instructions

WINFOSS-A21-3I series SF6 density relay globe valve device is a combined valve with multiple functions. After being installed on the switch body, the air passage with the body can be connected and disconnected by operating the handle on the valve body. The following functions can be realized: operate.

1 When the equipment is running normally, make sure that the status arrow set on the handle on the valve body indicates the "ON/ON" position. At this time, the SF6 density relay is connected to the gas circuit of the equipment, and the pressure change in the gas chamber is monitored in real time;

2. The status arrow set on the handle indicates the "ON/ON" position, which can be used to supplement the equipment, take gas during the test of micro-water and purity, and directly connect the test equipment joint with the self-sealing valve joint reserved for the three-way valve. operational;

3 When the SF6 density relay is not disassembled for direct calibration, the arrow of the state of the rotary handle indicates the "OFF/OFF" position. At this time, the air circuit of the body is cut off. Connect the connector of the tester to the calibration port on the three-way valve. The calibration operation can be carried out. After the operation is completed, rotate the handle to the "ON/ON" state, and then tighten the metal protective cap of the air supply/calibration port.

4. Instructions for ordering

Please provide the following when ordering, so that we can choose the right product for you:

1. The form and size of the interface of the switch body and the equipment manufacturer;

2. The number, form and size of self-sealing valves at the interface of the three-way valve are verified online for the pre-installed SF6 density relay, and the connection part of the SF6 density relay or the interface form and size with transition transition;

3. Body material: aluminum alloy, stainless steel, brass;

4. SF6 density relay on-line verification of the installation space of the three-way valve.

Five, matters needing attention

1. When the equipment is running, make sure that the valve status is in the "open/ON" position;

2. After the SF6 density relay verification, switch gas supply, and gas intake operations are completed, tighten the metal protective cap.

6. Drawings (technical specifications and dimensions)