Protego FA-I-V, FA-I-P Flame Arrester, In-Line, ATEX
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For Vacuum Pumps, Compressors snd Blowers
Special Features and Advantages
Explosion Group: IIA, IIB3, IIB, IIC
- Customized protection for vacuum pumps, blowers and compressors
- Modular design provides every user with the optimal flame arrester
- Flexible design parameters result in lowest pressure drops
- Modular flame arrester unit enables individual FLAMEFILTER to be replaced and cleaned
- Modular design reduces spare parts cost
- Worldwide, long-term availability of spare parts
Function and Description
PROTEGO FA-I-V and FA-I-P flame arresters are specifically designed for vacuum pumps, blowers, and compressors. The high flow velocity in the small gaps of these machines can lead to undesirable ignitions within the housing. One of the safest measures against explosion propagation are flame arrester units that are installed on the vacuum and pressure side of the equipment. PROTEGO FA-I-V devices for the vacuum side and PROTEGO FA-I-P devices for the pressure side provide a unique modular design that gives every manufacturer of vacuum pumps or comparable devices the option of using optimised and adapted flame arresters. Our expert technical staff will assist you with the proper selection of the devices as well as execution of type testing.
PROTEGO FA-I-V and FA-I-P devices are symmetrical in design. The arrester essentially consists of two housing parts (1) and the PROTEGO flame arrester unit (2) in the center. The PROTEGO flame arrester unit is modular and consists of several FLAMEFILTER (3) and spacers firmly held in a FLAMEFILTER cage. The number of FLAMEFILTER® and their gap size depends on the arrester´s conditions of use. PROTEGO FA-I-V and FA-I-P flame arresters are available for explosion groups IIA to IIC (NEC groups D to B) and special gases such as ethylene oxide.
Selection of Explosion Group| FLAMEFILTER gap | MESG | Expl. Gr. (IEC / CEN) | Gas Group (NEC) |
|
| 0.7 mm | >0.90 mm | IIA | D |
| 0.5 mm | ≥ 0.65 mm | IIB3 | C |
| 0.3 mm | ≥0.50 mm | IIB | C |
| 0.2 mm | <0.50 mm | IIC | B |
Special approvals upon request.
Material Selection For Housing| Design | A | B | C |
|
| Housing | Steel | Stainless Steel | Hastelloy |
| Gasket | PTFE | PTFE | PTFE |
| Flame arretser unit | A,B | B | C |
The housing can be delivered in steel with an ECTFE coating.
Special materials upon request.
Material Combinations of Flame Arrester Unit| Design | A | C | D |
|
| FLAMEFILTER cage | Steel | Stainless Steel | Hastelloy |
| FLAMEFILTER | Stainless Steel | Stainless Steel | Hastelloy |
| Spacers | Stainless Steel | Stainless Steel | Hastelloy |
The FLAMEFILTER is also available in the materials Tantalum, Inconel and Copper etc.
Special materials upon request.
Flange Connection Type| EN 1092-1; Form B1 |
|
| ASME B16.5 CL 150 RFSF |
Other connections upon request.
Design Types and Specifications| FA-I-V | Flame arrester for low pressure side in the basic design |
| FA-I-V-T | Flame arrester for the low pressure side with integrated temperature sensor* for additional protection against short-time burning on one side |
| FA-I-P-- | Flame arrester for the pressure side in the basic design |
| FA-I-P-T | Flame arrester for the pressure side with integrated temperature sensor* for additional protection agaisnt short-time burning on one (recommended) |
Additional special devices available upon request.
*Resistance thermometer for device group II, category (1) 2 (GII cat. (1) 2).
