DA-SB-PTFE
In-Line Detonation Flame Arresterfor stable detonations and deflagrations in a straight through design with shock absorber, bidirectional

Features
Low Costs
Temperature Sensors Possible
Bi-Directional Flame Transmission
Modular Design
Differnt Series
Aggressive, Sticky, or Polymerizing Products
Use of Patented Shock Wave Guide Tube Effect (SWGTE)

High-Tech Coating of the Housing

Main component - PROTEGO® flame arrester

For Explosion group IIA
Dimensions
To select nominal width/nominal size (NG/DN) - combination, please use the flow capacity chart on the following pages
| NG | 150 / 6" | 150 / 6" | 200 / 8" | 300 / 12" |
| DN | 50 / 2" | 80 / 3" | 80 / 3" | 100 / 4" |
| a | 287 / 11.30 | 287 / 11.30 | 342 / 13.46 | 447 / 17.60 |
| b | 407 / 15.75 | 407 / 15.75 | 497 / 19.57 | 645 / 25.39 |
| c | 400 / 15.75 | 400 / 15.75 | 530 / 20.87 | 530 / 20.87 |
Dimensions in mm / inches
Selection of explosion group
| MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
| > 0,90 mm | IIA | D |
Special approvals upon request
Selection of max. operating pressure
| NG | 150 / 6" | 150 / 6" | 200 / 8" | 300 / 12" |
| DN | 50 / 2" | 80 / 3" | 80 / 3" | 100 / 4" |
| Pmax | 2,4 / 34.8 | 1,1 / 15.9 | 1,2 / 17.4 | 1,2 / 17.4 |
Pmax = Maximum allowable operating pressure in bar / psi absolut, higher operating pressure upon request
Specification of max. operating temperature
| ≤ 60°C / 140°F | Tmaximum allowable operating temperature in °C |
| - | 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:Additional special flame arresters upon request
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2)
Material for housing
| Design | A |
| Housing | Steel with an ECTFE coating |
| Shock absorber | Steel with an ECTFE coating |
| Gasket | PTFE |
| Flame arrester unit Flame arrester unit Flame arrester casing with FLAMEFILTER® set. | A, B, C |
Special materials upon request
Material combinations of flame arrester unit
| Design | A | B | C |
| FLAMEFILTER® cage | Steel with an ECTFE coating | Hastelloy | Stainless Steel |
| Spider rings | Steel with an ECTFE coating | Hastelloy | Stainless Steel |
| FLAMEFILTER®* | PTFE* | PTFE* | PTFE* |
| Spacer Spacer The spacer is a component that is generally used in a PROTEGO® flame arrester as a spacer within the FLAMEFILTER® se | PEEK / ETFE / FEP | PEEK / ETFE / FEP | PEEK / ETFE / FEP |
* electrically conductive
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”.









