DAZ-S

In-Line Detonation Flame Arresterfor stable detonations and deflagrations in a straight through design, uni-directional

Features

State of the Art Protection
for any hydrogen/air mixture
Low Costs
low operating and lifecycle costs
Extended Application Range
for elevated operating temperatures and pressures
Temperature Sensors Possible
use of temperature sensors for G 1½ and G 2 is possible
Modular Design
allows replacement and cleaning of single FLAMEFILTER®
Spare Parts
cost-effective flame arrester / spare parts
Function and Description

In-line detonation flame arresters with Shock Wave Guide Tube Effect

Main component - PROTEGO® flame arrester

The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable detonations. The arrester essentially consists of two housing Housing A housing is a solid shell, which surrounds a content, either protecting the content from external influences, or protecting the environment from the content. parts with an integrated shock tube (1) and the PROTEGO® flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. (2) in the center. The PROTEGO® flame arrester unit PROTEGO® flame arrester unit The PROTEGO® flame arrester unit is the main component of a flame arrester. It prevents flame propagation. is modular and consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® casing FLAMEFILTER® casing Enclosure for FLAMEFILTER® including insert rings. . The number of FLAMEFILTER® discs and their gap size depends on the arrester‘s intended use.

Many Individual Certifications

By specifying the operating conditions, such as the temperature, pressure, explosion group, and the composition of the fluid, the optimum detonation arrester can be selected from a series of approved devices. The PROTEGO® DA-SB flame arresters are available for all explosion groups. The standard design can be used with an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of up to +60°C / 140°F and an absolute operating pressure Operating pressure Operating pressure is the pressure existing at normal operating conditions within the system being protected. up to bar / 15.9 psi. Numerous devices with special approval for higher pressures (see table 3) and higher temperatures are available upon request. EU conformity according to the currently valid ATEX directive. Approvals according to other national/international regulations on request.
Product Data and Features

Dimensions

To select nominal width/ nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. (NG/DN) - combination, please use the flow capacity charts on the following pages
Additional nominal width/nominal size (NG/DN) - combinations for improved flow capacity upon request



NG 200 / 8"300 / 12"
DN ≤100 / 4" ≤150 / 6"
a 340 / 13.39 445 / 17.52
b IIC-P1,2-X2 - 640 / 25.20
IIC-P1,2-X3 500 / 19.69 -
IIC-P1,3 - 640 / 25.20
c 415 / 16.34 570 / 22.44

Dimensions in mm / inches

Selection of explosion group

MESGExpl. Gr. (IEC / CEN)Gas Group (NEC)
< 0,50 mm IIC B

Special approvals upon request

Selection of max. operating pressure

MarkingNG200 / 8"300 / 12"
DN ≤100 / 4"' ≤150 / 6"
IIC-P1,2-X3 Pmax - 1,2 / 17.4
IIC-P1,2-X2 Pmax 1,2 / 17.4 -
IIC-P1,3 Pmax - 1,3 / 18.9

Pmax = maximum allowable operating pressure in bar / psi absolut, higher operating pressure upon request

in-between size up to Pmax upon request

Specification of max. operating temperature

≤ 60°C / 140°F≤ 180°C / 356°F≤ 200°C / 392°FTmaximum allowable operating temperature in °C
- X2 X3 Designation

Higher operating temperatures upon request

Flange connection type

EN 1092-1; Form B1
ASME B16.5 CL 150 R.F.

other connections upon request

Design Types and Specifications

There are three different designs available:

Material selection for housing

DesignAB
Housing Steel Stainless Steel
Heating jacket (DAZ-S-(T)-H-...) Steel Stainless Steel
Gasket PTFE PTFE
Flame arrester unit A, B B

The housing is also available in carbon steel with an ECTFE coating Coating Coating is the application of a firmly adhering layer of shapeless material to the surface of a workpiece. .

Special materials upon request

Material combinations of flame arrester unit

Design AB
FLAMEFILTER® cageSteel Stainless Steel
FLAMEFILTER®*Stainless Steel Stainless Steel
Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se Stainless Steel Stainless Steel

*Special materials upon request

Flow Capacity Chart

The flow capacity charts have been determined with a calibrated and TÜV certified flow capacity test rig. Volume flow V in (m³/h) and CFH refer to the standard reference conditions of air ISO 6358 (20°C, 1bar). For conversion to other densities and temperatures refer to Sec. 1: “Technical Fundamentals”.

Applications