SF6 special gas mask (Winfoss -G11)

Overview

SF6 special gas mask is a single-eye full-face filter gas mask, which is a personal protective equipment. It is specially introduced for the personal safety of personnel engaged in the installation, debugging, operation and maintenance, testing and maintenance of SF6 electrical equipment working on site. It can ensure that the respiratory organs, eyes and facial skin of the above-mentioned personnel are protected from toxic and harmful substances such as hydrofluoric acid, sulfur dioxide, low fluoride and other decomposition products in SF6 high-voltage electrical appliances, so as to achieve effective protection. The mask has been inspected by the National Labor Protection Products Quality Supervision and Inspection Center, and has obtained a certificate of conformity, which meets the relevant provisions of the national standard GB2890-82.

This mask consists of a mask and a canister. The mask can be used directly with the canister. The anti-virus principle is: when the person inhales, the poisoned air is purified by the filter canister and then enters the human respiratory system through the mask.

The Winfoss-G11 full face mask provides exceptional durability and safety for tough tasks requiring face and respiratory protection. In line with the national standard filter gas mask "GB2890-82" standard. The standard threaded port design can be customized with a variety of canisters to protect against gases, organic vapors and particulates. After using for a period of time, you can also purchase SF6 special canister as a spare part to replace the original canister.

Features

• The visor is made of PC material, with a wide field of view, with anti-scratch and anti-solvent coating, to ensure clear and distorted images, optional glasses accessories;
• Good sealing, matching most people's face size
• Silicone rubber provides a comfortable fit
• very durable
• Diaphragm for easy communication
• Bright blue and beautiful
• Good sealing, matching the face size of most people, silicone rubber provides comfortable wearing, and the call diaphragm is convenient for communication;
• Mesh headband to avoid hairpins, quick release buckle, convenient and comfortable to wear for maximum security and stability
• The suspending belt is convenient for hanging the mask on the chest when resting;
• Standard threaded interface allows connection to a variety of canisters, optimal weight distribution and better smooth fit Enhances peripheral vision
• wild .

Structural Principles

• mask unit
• The mask is a new type of single-eye full-face mask, which consists of a mask body, a water blocking mask, a one-way check valve, and a breathing communicator.
• The cover body is integrally molded from rubber, and the sealing frame of the mask adopts a reverse folded edge band with a certain arc shape, which is shaped like an air cushion tube when worn to ensure comfortable wearing and air tightness under various conditions of use. The three-dimensional headband structure, flexible and reliable adjustment of the headband ring, can be freely adjusted according to the user's head shape to meet the needs of various wearers. The eye window adopts a single large lens with high light transmittance, which has a wide field of view and good visual performance. The mask is equipped with a water blocking cover and a one-way check valve. When inhaling, the air passing through the filter canister enters the respiratory tract through the one-way check valve of the water blocking cover. When exhaling, the one-way check valve is closed, and the exhaled moist gas It is discharged from the exhalation valve. Due to the function of the water blocking cover and the one-way check valve, the inhalation and exhalation air flow is ensured, and the lens is prevented from fogging and frosting, which improves the window's bright-keeping performance.
• Breathing talker The exhalation valve, the suction valve and the talker are all in one, with a compact structure and can be disassembled for easy cleaning or replacement. The voice transmission of the intercom is clear and the loss of sound transmission is small.

Canister Unit

• The shell of the canister is made of metal material. The canister is equipped with special impregnated activated carbon and F-03 molecular brush composite adsorbent, as well as screen plate, gauze, wool felt, which can effectively adsorb hydrofluoric acid, sulfur dioxide, fluoride Sulfuryl, decafluoride disulfide-oxygen, dust and other toxic and harmful substances, to achieve the purpose of purification.

Application place

• Places with SF6 equipment both outdoors and indoors;
• The concentration of oxygen gas in the air is not less than 18%;
• Environmental toxic gas content is not higher than 0.5%;
• The ambient temperature is -30～+45℃;
• Atmospheric pressure: 85kpa-106kpa.

Technical indicators

mask unit

• Appearance: It is in good contact with the human face, without obvious pressure, the fixing system has sufficient toughness and strength, and the parts are easy to replace;
• Air leakage coefficient: less than 0.005%.
• Exhalation valve air tightness: more than 45 seconds.
• Actual harmful space: less than 230 ml.
• Viewing angle: The total field of view is greater than 75%; the binocular field of view is greater than 60%; the lower viewing angle is greater than 40 degrees.
• Canister Unit

Air tightness: no bubbles escape within 1 minute, and the can is sealed in a sealed package.

• Resistance to air flow: large and medium tanks <18.0 mm water column (176 Pa); small tanks < 12.0 mm water column (118 Pa).
• Anti-virus time for sulfur dioxide (SO2) (minimum effective protection time): small tank---not less than 20 minutes, SO2 concentration is 8 mg/L (volume concentration is 0.3%, flow rate is 30 L/min).
• The performance of adsorbing acidic substances (calculated as HF): the acidity is 74.3PPMv, and the mixture of SF6 cracking gas and air with a flow rate of 6 liters/min is passed into a small tank, and after 300 minutes of adsorption, the acidity of the permeated gas is 0.35 PPMv.
• The adsorption rate of the impurity sulfur decafluoride-oxygen (S2F10O): the standard gas S2F10O concentration is 5200PPMv, the flow rate is 300 ml/min, after 56 minutes of adsorption in the small tank, the permeated gas concentration is zero, and the permeability is zero.
• The adsorption rate of impurity sulfuryl fluoride (SO2F2): the concentration of standard gas SO2F2 is 9586 PPMv, the flow rate is 300 ml/min, after 56 minutes of adsorption in the small tank, the permeated gas concentration is 131.5PPMv, and the permeability is 1.4% .
• Weight: 200～300g or less.

Service Guarantee

• Provide on-site training guidance and conduct on-site demonstration operations.
• 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.
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