Description
316 Stainless Steel Filter Regulator – Shako USFR02, USFR03 & USFR04
High Pressure Stainless Steel Air Filter & Pressure Regulator
The Shako USFR Series combines high-efficiency compressed air filtration with precision pressure regulation in a single compact 316 stainless steel assembly, providing clean, regulated compressed air for demanding industrial applications.
Designed for operating pressures up to 60 Bar (900 psi), the USFR Series delivers excellent corrosion resistance, accurate pressure control and reliable filtration for food processing, pharmaceutical manufacturing, chemical plants, offshore installations and hygienic compressed air systems.
Manufactured entirely from 316 stainless steel, the USFR Series provides long service life in corrosive and high-pressure environments while reducing installation space by combining filtration and regulation into one compact FRL unit.
Function & Operation
Function: Combined compressed air filter and pressure regulator
Port sizes: 1/4", 3/8" or 1/2" BSP
Optional threads: NPT or Rc
Working media: Compressed air and inert gases
Maximum inlet pressure: 60 Bar
Outlet pressure ranges:
0.5–12 Bar
0.5–30 Bar
Proof pressure: 80 Bar
Ambient temperature: -10°C to +70°C
Regulator type: Precision piston regulator
Filtration
Standard filter element:
5 micron 316 stainless steel
Optional filter element:
40 micron stainless steel
The stainless steel filter element efficiently removes water and solid contaminants while providing clean compressed air for downstream pneumatic equipment.
Construction
Body: 316 stainless steel
Filter bowl: 316 stainless steel
Regulator piston: 316 stainless steel
Pressure gauge case: SUS304 stainless steel
Pressure gauge thread: SUS316 stainless steel
Spring: SUS303 / alloy steel
Seals: FKM (Viton)
Filter bowl capacity: 110 cc
Drain options:
Semi-automatic (standard)
Automatically drains below 0.5 Bar
Optional:
Manual drain
Fully automatic drain (up to 10 Bar)
Viewer bowl option for 0–12 Bar version
Performance
Maximum flow (ANR):
1/4": 2200 L/min
3/8": 2500 L/min
1/2": 3800 L/min
Weight: 2000 g
Supplied Complete
Pressure gauge
Mounting bracket
Mounting screws
Blanking plug
Factory assembled and boxed ready for installation
Compliance & Options
ATEX certified
II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T135°C Db
Standards:
EN ISO 80079-36:2016
EN ISO 80079-37:2016
Certificate: CML 24ATEXT322
Valid until 11 November 2034
Metallic components comply with NACE MR0175
Options available:
NSF H1 food-grade lubricant compatibility
Oxygen cleaned for oxygen service
Non-relieving version (USFRV)
Viewer bowl (0–12 Bar models)
Applications
Ideal for:
Food and beverage production
Breweries
Pharmaceutical manufacturing
Chemical processing
Offshore and marine installations
Hygienic compressed air systems
Clean process air
Industrial automation
Corrosive industrial environments
High-pressure pneumatic systems
Key Features
Combined filter and pressure regulator
Full 316 stainless steel construction
Operating pressure up to 60 Bar
Available in 1/4", 3/8" and 1/2" BSP
Precision piston pressure regulation
5 micron stainless steel filtration as standard
Flow rates up to 3800 L/min
110 cc stainless steel filter bowl
ATEX certified
Excellent corrosion and chemical resistance
Compatible with stainless steel FRL assemblies
High Pressure Stainless Steel Air Preparation
Unlike conventional aluminium FRL units, the Shako USFR Series is engineered for corrosive, hygienic and high-pressure compressed air systems where reliable filtration and accurate pressure regulation are essential.
The combination of full 316 stainless steel construction, stainless steel filter elements, FKM seals and precision piston regulation provides dependable long-term performance in demanding industrial environments while helping protect downstream pneumatic equipment from contamination and pressure fluctuations.
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