CMR/ATEX, CAS/ATEX, CBPN/ATEX, CDXR/ATEX explosion-proof centrifugal fans ATEX 2G/2D
Country: · Model: CMR/ATEX, CAS/ATEX, CBPN/ATEX, CDXR/ATEX
The four series of centrifugal fans CMR/ATEX, CAS/ATEX, CBPN/ATEX and CDXR/ATEX are ATEX-certified for categories 2G and 2D, and the largest airflow of the CDXR/ATEX range reaches ~105 600 m³/h. They extract gases, vapors and dust-air mixtures where an explosive atmosphere is possible. They are installed in paint booths and in solvent stores.
- Type
- centrifugal fans for explosive gas and dust atmospheres, copper spark-safe inlet ring
- Marking (Ex db / Ex eb / Ex tb)
- II 2G Ex h IIB T4 Gb / II 2G Ex h IIB T3 Gb / II 2D Ex h IIIC T135 °C Db
- CMR/ATEX
- medium pressure, backward-curved impeller; CMR/ATEX-1240 … 2380; up to ~48 000 m³/h
- CAS/ATEX
- high pressure; CAS/ATEX-242 … 1090; 0.37…45 kW; up to ~12 000 m³/h
Technical specifications
| Type | centrifugal fans for explosive gas and dust atmospheres, copper spark-safe inlet ring |
|---|---|
| Marking (Ex db / Ex eb / Ex tb) | II 2G Ex h IIB T4 Gb / II 2G Ex h IIB T3 Gb / II 2D Ex h IIIC T135 °C Db |
| CMR/ATEX | medium pressure, backward-curved impeller; CMR/ATEX-1240 … 2380; up to ~48 000 m³/h |
| CAS/ATEX | high pressure; CAS/ATEX-242 … 1090; 0.37…45 kW; up to ~12 000 m³/h |
| CBPN/ATEX | medium pressure for paint booths; 1445…2063; hatch; Ex n version — II 3G Ex h IIB T3 Gc (only inside the fan) |
| CDXR/ATEX | double-inlet, belt drive, shaft on both sides; II 2G Ex h IIB T6 Gb and II 2D Ex h IIIC 85 °C Db; sizes 200…1000; up to ~105 600 m³/h |
| Handled air temperature | CMR/ATEX, CAS/ATEX: −25…+88 °C (T4) or +120 °C (T3); CBPN/ATEX: up to +120 °C; CDXR/ATEX: −25…+48 °C |
| Coating | ATEX paint without iron-containing components, polyester 190 °C; CDXR/ATEX — galvanized steel |
| Motors | Ex db, Ex eb or Ex tb, built-in PTC |
| Related series | CMP/ATEX, CMA/ATEX, CA/ATEX, CPV/ATEX, PF/ATEX, CJPF/ATEX |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The design complies with EN 14986. To exclude a spark if the impeller touches the casing, the inlet ring is made of copper, and all parts without a welded joint are connected with earthing conductors. The ATEX paint contains no iron components, and the polyester is polymerized at 190 °C. The motor has one of three types of protection. With Ex db the fan marking is II 2G Ex h IIB T4 Gb, with Ex eb II 2G Ex h IIB T3 Gb, and with Ex tb II 2D Ex h IIIC T135 °C Db, in all cases with built-in PTC thermistors. CMR/ATEX-1240 … CMR/ATEX-2380 works with air from −25 to +88 °C for class T4 or up to +120 °C for T3 and gives about 48 000 m³/h. For CAS/ATEX-242 … CAS/ATEX-1090 the temperature range is the same, models 242–260 and 640–650 have an aluminum impeller, and the motors are 2-pole, 0.37–45 kW.
How to choose
CMR/ATEX and CAS/ATEX are chosen by the required pressure. CBPN/ATEX is designed for paint booths, has an inspection hatch and sizes 1445–2063, and its Ex n version has a motor without an ATEX category. For a large airflow with a belt, CDXR/ATEX with double-inlet suction and sizes 200–1000 is suitable, but its air is only from −25 to +48 °C, and the marking is II 2G Ex h IIB T6 Gb and II 2D Ex h IIIC 85 °C Db.
Request a price and lead time
CMR/ATEX, CAS/ATEX, CBPN/ATEX, CDXR/ATEX explosion-proof centrifugal fans ATEX 2G/2D. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What marking do the fans have depending on the motor type?
With an Ex db motor II 2G Ex h IIB T4 Gb, with Ex eb II 2G Ex h IIB T3 Gb, with Ex tb II 2D Ex h IIIC T135 °C Db.
Which fan of this line should be chosen for a paint booth?
CBPN/ATEX with an inspection hatch, with an air temperature of up to +120 °C. There is also an Ex n version with the marking II 3G Ex h IIB T3 Gc.
What is the largest airflow in this line?
For CDXR/ATEX up to ~105 600 m³/h, for CMR/ATEX up to ~48 000 m³/h, for CAS/ATEX up to ~12 000 m³/h.
How is spark formation excluded in these fans?
The inlet ring is copper, and parts without welded joints are earthed.
Up to what air temperature does CDXR/ATEX work?
From −25 to +48 °C, while CMR/ATEX and CAS/ATEX withstand +88 °C for T4.
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.