X-PURGETM & Y-PURGETM
All Purging Systems are Third Party Listed by " ETL " for :
"X" Type Purging System - Division I outside the enclosure to General Purpose inside the Enclosure.
"Y" Type Puring System - Division I outside the Enclosure to Division 2 inside the Enclosure.
"Z" Type Puring System - Division 2 outside the Enclosure to General Purpose inside the Enclosure.
All three type of Purging Systems are Listed for:
Class I, Groups ABCD and Class II, Gorups EFG
Matticks Industries, Purge Systems come in several sizes:
2 Cubic Foot, 15 Cubic Foot, 75 Cubic Foot, 150 Cubic Foot and 300 Cubic Foot
Standard features are:
Swagelock Stainless Steel Fittings
Stainless Steel Tubing
Stainless Steel Mounting Panel
Stainless Steel Valves
Dwyer Pressure Gauge
Dwyer Magnehelic Guage
Cabinet Relief Valve Supplied
Six Differant Mounting Patterns
Advantages of Purging an Enclosure:
Lower cost per cubic foot as the enclosure size increases.
Lower weight fo ptotected equipment.
Allows the use of Division 2 or General Purpose equipment in a Division I area, depending on the type of Purging System being used.
Unlimited Enclosure Shapes.
Disadvantages of Explosion Proof Equipment:
Cost increases per cubic foot as the enclosure size increases.
Weight increases as the area of the enclosure increases.
THE ABC'S OF PURGING SYSTEM SIZING
|SYSTEM SIZE||DIVISION||MOUNTING||GROUP||WITH ALRAM/WITHOUT ALARM|
MPS 15 1 - 3 - BCD - A
( A )
Use Total Volume of all wire ways, devices and enclosures.
Height x Width x Depth (in inches) Divided by 1728 = Total Cubic Feet
( Cylindrical Size ) :
3.141593 x Cylinder Length (in inches) Divided by 1728 = Total Cubic feet
( B )
Choosing the Division:
Division 1 Applications - Areas in which Hazardous Gases or Hazardous Dust is present under normal operating conditions.
Division 2 Applications - Areas in which Hazardous Gases or Hazardous Dust is not present under normal operating conditions.
( C )
1 - Left Hand Mount, 2 - Bottom Mount
3 - Right Hand Mount, 4 - Top Mount
5 - Door Mount, 6 - Wall Mount
( D )
Choosing a Group:
A - Acetylene, B - Hydrogne
C - Ethyl Ether, D - Acetone
E - Aluminum, F - Carbon
( E )
A - With Alarm Contacts
NA - Without Alarm Contacts