WZ type sight glasses for flameproof casings

Description

Typoszereg wzierników typu WZ do obudów ognioszczelnych

Application:

WZ sight glasses for flameproof enclosures are intended for use in flameproof enclosures in IT3S .. flameproof transformers, ROK .. switchgears and other devices and flameproof enclosures.

The sight glass is made of a polycarbonate lens made of Lexan Exell D material. The sight glass holder is made of steel. The sight glass is mounted in the frame by gluing with a special glue, and then the whole thing is pressed.

 

Technical parameters of WZ type sight glasses:

TypeData
Series:WZA-90
WZA-70
WZA-40
WZGA
Working temperature:-10oC to +90oC
Maximum instantaneous temperature:+120oC
Relative humidity:up to 95%
Work location:any
Environment:moderately chemically aggressive

 

WZ type sight glasses:

Type of sight glassOuter diameter[mm]Field of view diameter [mm]Housing thickness [mm]The thickness of the field of view [mm]
WZA-90Ø90.00-0.075Ø78.0014.509.50
WZA-70Ø70.00-0.075Ø58.0014.509.50
WZA-40Ø40.00-0.075Ø28.0014.509.50
WZGAM38 x 1,5Ø24.0014.509.50

 

Certificate

On November 15, 2007 WZ type of sight glasses has received an EC-type examination certificate: FTZÚ 07ATEX0246U

Physical-Technical Testing Institute (Fyzikálne technickz zkusebni ustav, s.p), Notified Body No. 1026 in accordance with Article 9 of Council Directive 94/9 / EC of 23 March 1994, certifies that the above-mentioned device or protective system has been checked for compliance with the basic safety and health requirements regarding the design, construction of the device and protective system intended for use in potentially explosive atmospheres specified in Annex II to this Directive.

The basic requirements of safety and health protection were implemented by meeting the requirements of the following standards:

  • PN-EN 60079-0:2013
  • PN-EN 60079-1:2010

The series of types of the WZ sight glasses is marked:

FTZÚ 07ATEX0246U
I M2 Ex d I Mb

1461

 

Download the catalog card:

Series of types of type sight glasses WZ

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