Potable Water Flow Restrictors

We are pleased to offer a full selection of stainless steel inline flow restrictors ranging from 1.5 gallons per minute to 26.1 gallons per minute that can be used to retrict water flow rates in potable water treatment applications.

These restrictors are commonly used to restrict water flow rates for UV sterilizer applications to ensure that the target UV dose is met. Compatible with Viqua, Trojan, Sterilight, and all other brands of UV sterilizers. Flow restrictors are used to ensure that the maximum flow ratings of ultraviolet (UV) sterilizers are not exceeded, thereby ensuring that an adequate UV dose is always maintained. We recommend that you select a restrictor that has a GPM restriction rating equal to or less than the maximum flow rate of your UV sterilizer based on a UV dose of 40 mJ/cm2.

All Viqua brand restrictors use NSF-61 approved Neoperl inserts.

Flow Restrictors for UV Sterilizers & Other Potable Water Applications
Model Material GPM
Restriction
Rating
Inlet/Outlet Applicable
UVMax
Models
Applicable
Sterilight
Models
Price
FRSS-1.5 Flow Restrictor
Viqua
FRSS-1.5
Flow Restrictor
316
Stainless
Steel
1.5 GPM 1/2" x 1/2"
FNPT
S2Q-PA
MSRP: US$80.00
Our Price: US$39.00
You save: $41.00


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FRSS-2.5 Flow Restrictor
Viqua
FRSS-2.5
Flow Restrictor
316
Stainless
Steel
2.5 GPM 1/2" x 1/2"
FNPT
VT4
MSRP: US$80.00
Our Price: US$39.00
You save: $41.00


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FRSS-3.5 Flow Restrictor
Viqua
FRSS-3.5
Flow Restrictor
316
Stainless
Steel
3.5 GPM 1/2" x 1/2"
FNPT
MSRP: US$80.00
Our Price: US$39.00
You save: $41.00


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FRSS-4.3 Flow Restrictor
Viqua
FRSS-4.3
Flow Restrictor
304
Stainless
Steel
4.3 GPM 3/4" x 3/4"
FNPT
S5Q-PA
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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FRSS-6-34 Flow Restrictor
Viqua
FRSS-6-34
Flow Restrictor
304
Stainless
Steel
6.0 GPM 3/4" x 3/4"
FNPT
VH200
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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FRSS-6 Flow Restrictor
Viqua
FRSS-6
Flow Restrictor
316
Stainless
Steel
6.0 GPM 1" x 1"
FNPT
E4-50+ VH200
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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FR8 Flow Restrictor
Generic
FR8
Flow Restrictor
Stainless
Steel
8.0 GPM 3/4" x 3/4"
FNPT
D4
D4+
D4 Premium
IHS12-D4
IHS22-D4

S8Q-PA
VH200
MSRP: US$57.00
Our Price: US$27.00
You save: $30.00


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FRSS-8 Flow Restrictor
Viqua
FRSS-8
Flow Restrictor
316
Stainless
Steel
8.0 GPM 1" x 1"
FNPT
E4-50+
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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FRSS-8.9 Flow Restrictor
Viqua
FRSS-8.9
Flow Restrictor
304
Stainless
Steel
8.9 GPM 3/4" x 3/4"
FNPT
D4
D4+
D4 Premium
IHS12-D4
IHS22-D4
S8Q-PA
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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FRSS-10 Flow Restrictor
Viqua
FRSS-10
Flow Restrictor
304
Stainless
Steel
10.0 GPM 3/4" x 3/4"
FNPT
MSRP: US$95.00
Our Price: US$49.00
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FRSS-12 Flow Restrictor
Viqua
FRSS-12
Flow Restrictor
316
Stainless
Steel
12.0 GPM 1" x 1"
FNPT
F4-50+ VH410
VH410M
MSRP: US$95.00
Our Price: US$49.00
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FRSS-15 Flow Restrictor
Viqua
FRSS-15
Flow Restrictor
316
Stainless
Steel
15.0 GPM 1" x 1"
FNPT
E4
E4+
IHS22-E4
MSRP: US$95.00
Our Price: US$49.00
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FRSS-15.8 Flow Restrictor
Viqua
FRSS-15.8
Flow Restrictor
316
Stainless
Steel
15.8 GPM 1" x 1"
FNPT
E4
E4+
IHS22-E4
MSRP: US$95.00
Our Price: US$49.00
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FRSS-20 Flow Restrictor
Viqua
FRSS-20
Flow Restrictor
316
Stainless
Steel
20.0 GPM 1" x 1"
FNPT
VP600
VP600M
MSRP: US$95.00
Our Price: US$49.00
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FRSS-26.1 Flow Restrictor
Viqua
FRSS-26.1
Flow Restrictor
316
Stainless
Steel
26.1 GPM 1" x 1"
FNPT
F4
F4+
MSRP: US$95.00
Our Price: US$49.00
You save: $46.00


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