Protego BR

DAZ-S

In-Line Detonation Flame Arrester for 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 Spare Parts
Function and Description

In-Line Detonation Flame Arresters with Shock Wave Guide Tube Effect

The In-Line Detonation Flame Arresters Type PROTEGO® DA-SB are the newest generation of Flame Arresters. Based on flow and explosion dynamic calculations as well as decades of field tests, a product line was developed that offers minimum pressure losses with maximum safety. The Flame Arrester uses the Shock Wave Guide Tube Effect (SWGTE) to separate the flame front and shock wave. The result is an in-line detonation arrester without a classic shock absorber, which minimizes the use of FLAMEFILTER® discs.

Main Component – PROTEGO® Flame Arrester Unit

The devices are symmetrical and offer bi-directional flame arresting for deflagrations and stable detonations. The arrester essentially consists of two housing parts with an integrated shock tube (1) and the PROTEGO® Flame Arrester Unit (2) in the center. The PROTEGO® Flame Arrester Unit is modular and consists of several FLAMEFILTER® discs (3) and spacers firmly held in a FLAMEFILTER® casing. 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 of up to +60°C / 140°F and an absolute operating pressure 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

Dimensions

To select nominal width/nominal size (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

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.

Special materials upon request

Material combinations of flame arrester unit

Design AB
FLAMEFILTER® cageSteel Stainless Steel
FLAMEFILTER®*Stainless Steel Stainless Steel
Spacer Stainless Steel Stainless Steel

*Special materials upon request

Flange connection type

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

other connections 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”.