Point of use Nitrogen Dryers

Designed for separating humidity from compressed air flows.

Type FCA..CMSM point of use dryers are mainly designed for separating humidity (water vapour content) from compressed air flows (dry-type filtration). Point of use dryers are therefore used if there are no any liquid contaminants in the compressed air flow and when small amounts (maximum 4 m³/h) of dry compressed air (up to -40°C) for short periods (approximate 20 hours total load capacity) are required.

Type FCA filter housings are made from high-quality, corrosion-resistant aluminium, manufactured in a casting process (gravity casting). For surface finishing purposes and for increasing resistance all filter housings have to go through a chrome(VI)-free passivation process and are finished by an impact-proof and abrasion-proof powder coating which is provided on the outer side of the housing.

The filter housings comply with the requirements of the Pressure Equipment Directive 2014/68/EU, and some (depending on the model and pressure level) have the CE marking of this European directive.

Point of use dryers are provided with a manual drain (code CMS’M‘).

EFST..CMS filter cartridges consist of a loose desiccant filling, embedded between two coarse filter cloths and mesh screens. Furthermore, a pleated general purpose filter element (Z) is fully integrated into the cartridge downstream in order to reliably prevent even the finest desiccant abrasion from leaving the filter cartridge. A transparent perspex cylinder as a main body makes the desiccant filling visible. The pleated general purpose filter media is located between two stainless steel cylinders. Both desiccant and filter stage are completed/separated by plastic end caps. The adsorptive desiccant stage, as well as general purpose filter stage, is fully incorporated in a single, compact cartridge unit. As a result, a further downstream dust filtration is no longer required. The longish shaped desiccant bed ensures a long contact time of the compressed air with the desiccant and thus a low dew point and long lifetime.

All the features mentioned above contribute to a point of use dryer which has a long service life (high adsorption capacity) combined with economic efficiency (low differential pressure, small investment costs) and maximum operating safety (integrated design). This guarantees extremely low dew points and thus dry air.

Basic data

Model

Nominal volume flow (VN)*1

Capacity*2 Max. operating pressure Min./Max. operating temperature

FCA90CMSM

0,5 m³/h

11 m³

16 bar +2°C – +45°C

FCA110CMSM

1.5 m³/h

32 m³

FCA120CMSM

2.5 m³/h

54 m³

FCA130CMSM

4.0 m³/h

95 m³

*1 – refers to 1 bar(a) and 20°C at 7 bar operating pressure for 10 seconds contact time of the compressed air inside the desiccant bed
Reducing the volume flow improves all specifications

*2 – refers to 20°C inlet temperature (17.15 g/m³ humidity) and 20% load capacity of the desiccant referred to its weight

Purity classes according to ISO 8573-1

Contamination

Solid particles

(Class 2)

Water content *3

Class 2

Total oil content

*3 – typical result, on the assumption of suitable inlet concentrations as well as operating and marginal conditions.

Volume flow conversion factors

«F1» – Pressure (in bar)

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

0.125

0.25

0.38

0.50

0.63

0.75

0.88

1.00

1.13

1.25

1.38

1.50

1.63

1.75

1.88

2.00

2.13

«F2» – Temperature (in °C)

2

5

10

15

20

25

30

35

40

45

1.07

1.05

1.04

1.02

1.00

0.98

0.97

0.95

0.94

0.92

Calculation of the converted volume flow

Converted volume flow VK

Nominal required volume flow VNmin

VK = VN x F1 x F2

VNmin = VK / F1 / F2

VK : Converted volume flow calculated for the operating conditions

VNmin: Nominal required volume flow calculated for the operating conditions, based on the volume flow at operating conditions

Maintenance rules

Pressure range

Entire pressure range

Replacement of filter cartridge depending on the operating temperature and there-fore on the specified vapour amount (use of a humidity indicator or dewpoint meter is recommended)

In the course of filter cartridge replacement or cleaning: checking for serious corrosion

Product specific data

Specification

Differential pressure

< 50 mbar

Pressure dew point (nominal)

-40°C

Materials

Component

Filter housing

Aluminium (16 bar VDS no.: 233 ; 50 bar VDS no.: 239 heat treated)

Coatings

Inside and outside: Chrome(VI)-free thin-film passivation ; min. layer thickness 5μ

Outside: 1-component power coating epoxide/polyester basis, layer thickness appr. 80 μ

Mounting parts, fittings

Brass, brass (nickel-plated), steel (galvanically zinc-plated)

Sealing materials

NBR, Teflon (FCA140-190)

Lubricants

Rivolta S.K.D. 4002 or similar

Filling

Molecular sieve (MS)

Filter cloths

Polyester-Polyurethane

Mesh screens

Stainless steel 1.4301

Filter media general purpose filtration

Glass fibre

Bonded joint

PU (Polyurethane)

Cylinder filling

Acrylic

Cylinders filter media

Stainless steel 1.4301

End caps

PA6 (Polyamide)

Sealing materials

NBR

Connections, dimensions and weight

Model

Connection

Condensate Outlet

Height

Width

Depth

Weight

FCA90CMSM

G 1/2

CDM14N

311 mm

130 mm

122 mm

4.0 kg

FCA110CMSM

G 1/2

CDM14N

409 mm

130 mm

122 mm

4.4 kg

FCA120CMSM

G 1/2

CDM14N

509 mm

130 mm

122 mm

4.8 kg

FCA130CMSM

G 1/2

CDM14N

711 mm

130 mm

122 mm

5.8 kg

Classification according to Pressure Equipment Directive 2014/68/EU for group 2 fluids

Model

Volume

Category

Commissioning inspection*6

Routine inspection*6

FCA90CMSM

1.46 litres

FCA110CMSM

2.19 litres

FCA120CMSM

2.91 litres

FCA130CMSM

4.36 litres

I

AP*7

Downloads

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pdf DPB-Product data sheet FST FCA-CMS point of use dryer 453 KB 1046