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SHORV…-O (CCFE) explosion-proof boxes with window (flameproof joints)

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PURPOSE AND SCOPE OF APPLICATION

SHORV...-O explosion-proof boxes with window are stationary devices and can be used for arrangement of analogue and digital apparatuses for visual control, instruments, displays, monitors, signs, indicators, light signaling devices, as well as terminals, control, signaling elements and other electrotechnical components in case of their mounting in hazardous areas. Shape of explosion-proof SHORV enclosures ensure easy access for installation of equipment inside boxes. SHORV...-O enclosures with window have external flange.

SHORV...-O explosion-proof boxes with window (flameproof joints) are the fourth generation of Exd enclosures with over 25 years of flameproof joint service life.

Новая усиленная конструкция, без изменения весо-габаритных параметров оболочек, позволила расширить область применения оборудования для подгруппы IIC.

Cover and walls of explosion-proof SHORV…O enclosures with window are made with high strength characteristics. Windows of explosion-proof SHORV…O enclosures are made from impact-resistant and heat-resistant glass. Borosilicate glass of explosion-proof SHORV…O enclosures has sodium and calcium in its composition, which makes it more resistant to aggressive atmospheres and heat shock due to low coefficient of expansion.

The methods to signigicantly increase the strength of products include: air and water hardening, etching, ion-exchange strengthening in molted salts, application of metal-oxide coatings. "ZAVOD GORELTEX" Co. Ltd. (former "CORTEM-GORELTEX" Co. Ltd.) uses a combined way of increasing the strength of thermal resistant borosylicate glass which is the most efficient one. Special technology of "ZAVOD GORELTEX" Co. Ltd. (former "CORTEM-GORELTEX" Co. Ltd.) of increasing the strength of borosylicate glass to impacts enables to increase the strength limit of the thermal resistant borosylicate glass after special treatment at 7-10 times.

SHORV...-O explosion-proof enclosures with window are highly resistant to the impact of hydrogen sulfide fumes which is proved in a written form in GOST R certificates. Outstanding functional capabilities of SHORV...-O explosion-proof enclosures are complemented by excellent industrial design.

Scope of application – underground mines and pits hazardous with gas (methane), coal dust; outdoor and indoor hazardous areas as per explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996), areas with presence of combustible dust, as per GOST IEC 61241-3-2011, dangerous production facilities of I, II, III, IV hazard class supervised by Rostechnadzor of the RF and national technical supervision bodies of the Customs Union and CIS countries.