Restrictors
Hosco Stainless Steel Restrictors provide reliable, long life fluid flow control to an applicator. The family of products consists of recirculating and non-circulating versions that can be internally set (tamperproof) or externally adjusted even while dispensing. The long tapered needle design of the restrictors provide fine flow rate adjustments from complete shut off to over 1000 cc/min (depending on pressure and viscosity). Settings are repeatable from restrictor to restrictor station so set up is relatively easy. The internally set styles may require the RAB-6 Tool to provide initial set point adjustment while the restrictor is “on line”. The externally adjusted versions require an allen wrench for adjustment which is included with the restrictor.
Name
Description
RIA-6
Externally-Adjustable, 3/8" NPS (F) x 3/8" NPS (M)
Restricted Outlet Size
0.51
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
3/8 NPS
Through Hole ID
0.1
Weight
66g
Length
1.69
RIA-6B
Externally-Adjustable, 3/8" BSP (F) x 3/8" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
3/8 BSP
Weight
66g
RIA-4
Externally-Adjustable, 3/8" NPS (F) x 1/4" NPS (M)
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
1/4 NPS
Weight
66g
RIA-4B
Externally-Adjustable, 3/8" BSP (F) x 1/4" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
1/4 BSP
Weight
66g
RY-6-AJ
Externally-Adjustable, 3/8" NPS (F) x 3/8" NPS (M)
Restricted Outlet Size
0.48
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
3/8 NPS
Through Hole ID
0.28
Weight
141g
Length
2.74
RY-6B-AJ
Externally-Adjustable, 3/8" BSP (F) x 3/8" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
3/8 BSP
Weight
141g
RY-4-AJ
Externally-Adjustable, 3/8" NPS (F) x 1/4" NPS (M)
Restricted Outlet Size
0.25
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
1/4 NPS
Through Hole ID
0.236
Weight
144g
Length
2.60
RY-4B-AJ
Externally-Adjustable, 3/8" NPS (F) x 1/4" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
1/4 BSP
Weight
144g
RY-4
Internally-Adjustable, 3/8" NPS (F) x 1/4" NPS (M)
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
1/4 NPS
Weight
122g
RY-4B
Internally-Adjustable, 3/8" BSP (F) x 1/4" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
1/4 BSP
Weight
122g
RY-6
Internally-Adjustable, 3/8" NPS (F) x 3/8" NPS (M)
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
3/8 NPS
Weight
122g
Length
2.60
RY-6B
Internally-Adjustable, 3/8" NPS (F) x 3/8" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
3/8 BSP
Weight
122g
RIL-6
Internally-Adjustable, 3/8" NPS (F) x 3/8" NPS (M)
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
3/8 NPS
Through Hole ID
0.55
Weight
39g
Length
1.14
RIL-6B
Internally-Adjustable, 3/8" BSP (F) x 3/8" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
3/8 BSP
Weight
39g
RIL-2T
Internally-Adjustable, 3/8" NPS (F) x 1/8" NPT (M)
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
1/8 NPT
Through Hole ID
0.55
Weight
37g
Length
1.04
HRU-6
Internally-Adjustable, 3/8" NPS (F) x 3/8" NPS (M)
Restricted Outlet Size
0.47
Circulating Inlet Size
3/8 NPS
Circulating Outlet Size
3/8 NPS
Through Hole ID
0.34
Length
1.98
HRU-6B
Internally-Adjustable, 3/8" BSP (F) x 3/8" BSP (M)
Circulating Inlet Size
3/8 BSP
Circulating Outlet Size
3/8 BSP
Downloads
Feature and Benefits
SST Construction
• Long life
• Compatible with all coatings and
adhesive materials known
Compact Design
• Allows spray operators to maneuver
the spraygun into small areas or tight
spaces much easier than alternatives
• Much smaller and lighter than regulator
based alternatives
Multiple Configurations
• Tamperproof or externally adjustable
versions
• Circulating or non-circulating versions
• In-line or 45 degree hose connection
versions on circulating versions to
keep hoses away from the product
being coated
Low Shear Design
• 0.350” smooth bore passageways
in circulating versions protect the
coating from excessive shear during
operation and minimize pressure loss
of the recirculating function
Highest ROI Flow Control Device
• Hosco Restrictors are generally 1/3
the cost of older regulator versions,
and last easily 10X longer between
service events or replacement
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