1. The perfect fit for corrosive wet areas Maintenance Units, Series MH1
Customer Presentation

2. Strengths at a glance
Highest corrosion resistance with stainless steel 316 SS (V4A)
Complies with NACE-MR0175/
ISO 15156
à For oil & gas applications
Pressure regulator “Hygienic” version à designed in accordance with the EHEDG directives
NSF H1-registered grease à approved for F&B

3. Filter pressure regulator
Product family
Filter pressure regulator
Pressure regulator
“Standard”
Pressure regulator
“Hygienic”
Filter
Pressure gauge
Mounting
3/4-way ball valve
Distributor

4. Key technical data - Dimensions -
Standard 1/4
Hygienic 1/4
Standard 1/2
Hygienic 1/2
Pressure regulator example
Connection thread
G1/4, ¼ NPT
G1/4
G1/2, ½ NPT
G1/2
Width [mm] 40 64
Nominal flow
[std l/min]
510
3,000

5. Key technical data - Dimensions -
Nominal size: 1/4, 1/2
Air connection: G1/4, 1/4 NPT
G1/2, 1/2 NPT
Pressure gauge connection: G1/8, 1/8 NPT
Condensate drain: G1/8
Maximum P1 pressure range: 17 bar
Permissible temperature range: -30°C to +80°C
RGS/FRE/ FLS flow rate Measured acc. to ISO 6953
Specifications: (p1 = 6.3 bar, Δp = 1 bar)
FLC/FLA flow rate specifications: Measured acc. to ISO (p1 = 6.3 bar, Δp = 0.2 bar)

6. Materials used Feature Advantage Benefits
Material: stainless steel 316 SS (V4A)
Highly corrosion-resistant
For use in corrosive environments/applications
Extremely robust
Suitable for high-pressure cleaning
Materials comply with NACE-MR0175, ISO 15156
Suitable for applications in the oil industry
Suitable for applications in e.g. refineries
Grease: NSF H1-registered
Fulfills the requirements of the food & beverage industry
Application in wet areas of the food & beverage industry
Seals: NBR
(Acrylonitrile butadiene rubber)
Meets food & beverage requirements
(FDA-approved material)
For use in food & beverage applications
Proven sealing material
Long seal service life

7. Standard pressure regulator, filter pressure regulator
Feature
Advantage
Benefits
Pressure setting via a hexagon screw
A tool is needed to adjust the set pressure
Additional security to prevent manipulation of the set pressure
Adjustment screw secured by a hexagon lock nut
A tool is needed to release the hexagon lock nut
Adjustment screw secured by a clamping effect
The adjustment screw is not loosened by vibrations
Relieving exhaust with M5 thread connection
Possible to connect a restricted relieving exhaust
Suitable for applications in sensitive areas

8. Standard filter, filter pressure regulator
Feature
Advantage
Benefits
New condensate drain
Opens the condensate drain if there are pressure fluctuations in the system
Use as a fully-automatic condensate drain
Maintenance-friendly
 no need to check the condensate
Opens the condensate drain when the compressed air is switched off
No condensate remains in the reservoir once the compressed air is switched off
High functional reliability, even at low temperatures
5 µm filter
Achievable compressed air class: 6:7:4
Filter to separate water, oil, and solids for standard applications

9. Filter Feature Advantage Benefits 0.01 µm filter
Achievable compressed air class: 1:_:2
For extremely demanding compressed air purity requirements
Active carbon filter
Achieve compressed air class: _:_:1
The oil vapor molecules held in the compressed air are absorbed by the active carbon

10. “Hygienic” pressure regulator
Feature
Advantage
Benefits
Designed in accordance with the EHEDG directives
Hygienic design
 smooth, easy-to-clean surface
For use in food zones
Cover over the adjustment screw with M5 thread connection
Connection for restricted relieving exhaust
No exhaust air in the food zone
No connection for pressure gauge *
No blanking screw needed
Smooth, easy-to-clean surface
* No pressure gauge with a rear thread connection complies with the EHEDG directives

11. Application examples Food industry/beverage industry/dairies Offshore
Food zone (only “Hygienic” pressure regulator)
Splash zone
Non-food zone
Offshore
Medicine
Chemical industry
Natural gas/acid gas/sulfur-rich gas
Printing & paper
Monitoring of emissions
Use in sewage treatment plants
Use in car washes