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Pepperl+Fuchs Blog

Ask an Expert! Purge Systems - Episode 3

Posted by Kristen Barbour on Thu, Dec 18, 2014

Need help with an industrial purge system or purged enclosure? Ask an Expert! In this episode, Product Manager Brent Dean answers these questions:

  1. For an ATEX installation using purging, can I use a purge system with a standard IP6X enclosure?
  2. Will I need to have a notified body evaluate the final purge system and enclosure even though your purge system carries the ATEX certification?
  3. I have one of your Type Y purge systems and have a request to install an operator interface in a Class I, Div. 1 location. The operator interface is rated Class I, Div. 2. If I use a Y purge unit, will it be considered applicable for the area, or will there be an issue if the display protrudes through the enclosure?
  4. Can a 6000 series Type X purge system be used in a Class I, Div. 2 environment?
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Topics: Purge/ Pressurization Systems, Ask an Expert

Dynamic Leakage Compensation for Seasonal Changes with Type X Purge Systems

Posted by Lou Szabo on Thu, Dec 04, 2014

As we head into winter, many of you with tire pressure monitors will notice the low tire pressure indicator light appearing on your dashboard as the weather turns colder. Wouldn’t it be nice to have automatic pressure compensation for these times?

A mud shaker system manufacturer converted to our 6000 series Type X purge system. There were two major reasons for the conversion.
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Topics: Purge/ Pressurization Systems

Connecting Field Devices to a Type X Purge System

Posted by Chris Romano on Wed, Nov 12, 2014

Pepperl+Fuchs' 6000 Series Type X purge system has a new intrinsically safe termination board and cable harness kit that makes it much easier to wire field devices to the 6000 Series purge system. The kit includes an IS termination board that is DIN-rail mounted, and a wire harness that can be ordered in three different lengths. Custom lengths are also available. The video below shows you what's in the kit and the steps to take to connect it properly.

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Topics: Purge/ Pressurization Systems

5500 Series Ex pz Purge System with Optional Manifold

Posted by Chris Romano on Tue, Oct 21, 2014

Part 3- optional manifold systems and mounting kits

The 5500 series is a Z Purge System and an Ex pz Purge System. Part 3 focuses on optional manifold systems to provide you with purging and pressurization. A mounting kit is also available, to allow the manifold system to be mounted inside or outside of the enclosure.

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Topics: Purge/ Pressurization Systems

5500 Series Type Z Purge Control System with Pressure Relief Vent

Posted by Chris Romano on Thu, Oct 09, 2014

Part 2- The pressure relief vent

The 5500 series is a Z purge system and Ex pz purge system. Part 2 of this product introduction gives an overview of the pressure relief vent and associated components for the vent system.

These type Z purge units are certified for ATEX, IECex, NEC class/divisions - Class I, Division 2 and Class II, Division 2, groups A-D and E, F, G, Zone 2 and 22.

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Topics: Purge/ Pressurization Systems

5500 Series Type Z Purge Control System for Division 2 or Zone 2

Posted by Chris Romano on Thu, Sep 25, 2014

Part 1- The control system, mounting components, and hardware

The 5500 series is our new Z purge system and Ex pz purge system. Part 1 of this product introduction takes a close look at the type Z purge control system and its mounting components and hardware.

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Topics: Purge/ Pressurization Systems

Ask an Expert! Purge Systems - Episode 2

Posted by Andy LaMar on Wed, Aug 20, 2014

Need help with an industrial purge system or purged enclosure? Ask an Expert! In this episode, Product Manager Brent Dean answers these questions:

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Topics: Purge/ Pressurization Systems, Ask an Expert

Purged Industrial Displays for Division 1 Hazardous Areas

Posted by Lou Szabo on Thu, Jul 10, 2014

What is the correct purge system to use for a Class I, Div. 1 industrial display?  It’s a common question asked of our technical support experts. Another variation: What choices do I have for HMI visualization and machine control in a Division 1 area and which purge system does it require?

The first two questions to answer are to what is the display connected and what is the HMI software.   This information tells us whether we are looking at an industrial monitor, a panel PC, or a networked monitor via thin client or KVM back to a host in a safe area.

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Topics: Purge/ Pressurization Systems, Industrial Monitors/ HMI

Ask an Expert! Purge Systems - Episode 1

Posted by Andy LaMar on Fri, Jan 17, 2014

When would I choose to use a Type Z purge system over another protection method?

If you have air or some type of inert gas available at your facility and you’re placing general-purpose equipment inside of an enclosure that will be located in a Division 2 location, then I would suggest using our Z purge system.

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Topics: Purge/ Pressurization Systems, Ask an Expert

Class I Applications for Type Y and Type Z Purge Systems

Posted by Brent Dean on Fri, Mar 01, 2013

Differences between the WPS and WPSA pressure switches

When selecting a Type Y or Type Z purge system, how do you know when to select the WPS (EPSK-1) or WPSA (EPSK-1A) pressure switch, and what is the difference? When selecting which pressure switch to use, first you must determine what hazardous gas group your enclosure is going to be located in (Group A, B, C, D, etc.).

The WPS pressure switch is rated for Class I Division 1 or 2 gas groups C and D. The WPSA switch is rated for Class I Division 1 or 2 gas groups A-D. For gas group C or D, you can use either switch. However, for gas group A or B, you must use the WPSA switch because it is certified for this area.

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Topics: Purge/ Pressurization Systems, Ask an Expert, Approvals/ Certifications

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