Worm gear screw jacks/ Linear Drives

Product catalog summary

Overview: This document provides a comprehensive checklist and guidelines for the use of Pfaff-silberblau worm gear screw jacks and linear drives in potentially explosive areas, in compliance with the 94/9/EC (ATEX) directive. It outlines responsibilities, device categories, zoning, temperature classes, explosion groups, and necessary certifications.

1. Responsibility: The customer is responsible for providing necessary data, checking applicability, and ensuring compliance with operating instructions to maintain the validity of the declaration of conformity.

2. Device Categories and Zoning: Devices are categorized into three zones based on the probability of explosive atmospheres: Zone 0/20 (permanent), Zone 1/21 (occasional), and Zone 2/22 (rare). The document specifies the design criteria for these zones, including temperature limits and safety factors.

3. Temperature Classes and Explosion Groups: The document lists temperature classes (T1 to T6) and corresponding maximum surface temperatures, along with examples of substances for each class. It also categorizes gases into explosion groups (IIA, IIB, IIC) based on their dangerousness.

4. Certification Requirements: For Zones 1/21 and 2/22, an EC type examination certificate and internal process control by the manufacturer are required. The document outlines the necessary documentation and checks for explosion protection.

5. Types of Protection: Pfaff-silberblau drive elements are designed with various types of protection, including constructional safety (c), liquid immersion (k), and control of ignition source (b). The document references relevant EN standards for each type.

6. Hazard Analysis: The document emphasizes the importance of hazard analysis to identify ignition risks and implement safety precautions, including addressing hot surfaces, sparks, electrostatic charging, and chemical reactions.

7. Documentation and Markings: A checklist for explosion protection data, including device group, category, zone allocation, and type of protection, is provided. The document also specifies the necessary markings for devices, such as Ex-marking and temperature class.

Catalog excerpts

Worm gear screw jacks/ Linear Drives according to 94/9/EC (ATEX) for use in potentially explosive areas Safety - Made by Pfaff-silberblau

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1 Responsibility • Our customer undertakes to provide us with all the required data. • Our customer must check the applicability based on the information provided by us. • The operator is responsible for - complying with the maximum capacity of the drive mechanism/lifting system - avoiding explosive atmospheres - minimizing or limiting the time of the explosion hazard - observing the information in the operating instructions supplied by us. If the operating instructions are not adhered to, the declaration of conformity will cease to be valid in accordance with 94/9/EC. • During the offer/order...

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2.5 Type of protection for non-electrical equipment for use in potentially explosive areas: Protection Protection Protection Protection Protection Protection Protection flow restricting enclosure „fr“ flameproof enclosure „d“ inherent safety „g“ constructional safety „c“ control of ignition source „b“ pressurization „p“ liquid immersion „k“ • Pfaff-silberblau drive elements are designed in accordance with type of protection „c - Protection by constructional safety“. • Drive elements produced for use in Zones 1 and 2 (gas) are designed in accordance with type of protection „k - Protection by liquid...

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Questionnaire - Page 1 Pfaff-silberblau Hebezeugfabrik GmbH Am Silberpark 2-8, 86438 Kissing Phone +49 / 83 33 / 21 21-800, Fax +49 / 83 33 / 21 21-805 E-Mail: [email protected], Internet: www.pfaff-silberblau.com 5.2 CHECKLIST for explosion protection data To enable Pfaff-silberblau lifting units/drive elements to be designed in accordance with EC directive 94/9/EC it is imperative that this checklist is completed and all outstanding questions regarding explosion protection be answered conscientiously. ■ Device group, device category and zone allocation (see Item 2.1) Device...

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Questionnaire - Page 2 ■ Explosion group for gas (see Item 2.4) Gases are divided into explosion groups. The dangerousness of the gases increases from group II A to II C. The explosion group is only specified for types of protection „d“, „i“, „nC" and „nL“ in the identifying markings. Please enter a cross ■ Type of protection (see Item 2.5) • Pfaff-silberblau drive elements are designed in accordance with type of protection „c - Protection by constructional safety“. • Drive elements intended for use in Zones 1 and 2 (gas) are designed in accordance with type of protection „k - Protection by liquid...

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Actuator Technology Rail Technology Stage Technology Pfaff-silberblau Hebezeugfabrik GmbH Am Silberpark 2-8 86438 Kissing / GERMANY [email protected] www.pfaff-silberblau.com Phone +49 / 8233 / 2121-887 Fax +49 / 8233 / 2121-885 eest! GmbH & Co. KG, Augsburg Lifting & Material Handling Equipement

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Worm gear screw jacks/ Linear Drives

Worm gear screw jacks/ Linear Drives

Catalog excerpts

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