Specifications from the Dwyer Series UV Installation and Operating Instructions, Bulletin F-60 Rev. 7 (FR# 443147-00), reviewed 2026-10-18.
Its corrosion-resistant polysulfone body is an ultra-pure, laboratory grade design rated for temperatures up to 212 °F (100 °C) and pressures up to 150 psi (10.34 bar). The body removes quickly for cleaning while all fittings stay in place. Install it indoors only, away from direct sunlight, because polysulfone is adversely affected by ultraviolet light.
Best For
- Chill water flow, reverse osmosis, deionized water, potable water and remediation systems listed as Series UV applications, where flow is within 1.0 to 10.0 GPM (4 to 38 LPM)
- Applications that need a corrosion-resistant polysulfone body, with media compatible with polysulfone, fluoroelastomer and PTFE wetted parts
- Indoor installations away from direct sunlight, mounted in an exact vertical plane
- Systems operating within 150 psi (10.34 bar) and 35 to 212 °F (2 to 100 °C)
Warranty
Key Features
Corrosion-Resistant Polysulfone Body
Corrosion-resistant polysulfone body for applications where other flowmeters fail. Wetted parts are a polysulfone body and fittings, fluoroelastomer O-rings and a virgin PTFE float.
Dual Scale
Reads 1.0 to 10.0 GPM water with a second scale of 4 to 38 LPM.
Easy Cleaning
Self-operating, with no maintenance other than occasional cleaning with mild soap and a bottle brush. The body removes without disturbing the fittings.
Temperature and Pressure Limits
Temperature limits of 35 to 212 °F (2 to 100 °C) and a pressure limit of 150 psi (10.34 bar).
Installation Options
Standard connections are 1 in. female NPT in-line. An optional 90° polysulfone elbow with 1 in. male NPT and the A-801 panel mount kit with polysulfone fittings are available.
ZOT Supply is an authorized distributor of Dwyer products.
Technical Specifications
| Model | UV-2112 |
| Series | UV Ultra-View™ Polysulfone Flowmeter |
| Flow Range | 1.0 to 10.0 GPM water (4 to 38 LPM) |
| Scale | Dual scale, GPM and LPM |
| Service | Compatible liquids and gases |
| Wetted Materials | Polysulfone body and fittings, fluoroelastomer O-rings, virgin PTFE float |
| Temperature Limits | 35 to 212 °F (2 to 100 °C) |
| Pressure Limit | 150 psi (10.34 bar) |
| Accuracy | ±2% FS at 70 °F ±2 °F (21.1 °C) and 14.7 psia (in-line connection rating only) |
| Repeatability | ±1% FS at 70 °F ±2 °F (21.1 °C) and 14.7 psia (in-line connection rating only) |
| Process Connections | 1 in. female NPT in-line |
| Fitting Torque | Maximum 22 ft-lb |
| Mounting | Exact vertical plane, supported at top and bottom |
| Installation Location | Indoor only, away from direct sunlight |
Compatible Accessories
- A-162 In-line fitting replacement kit. Two 1 in. female NPT connection fittings included in kit
- A-801 Panel mount kit, polysulfone fittings
Documentation
Frequently Asked Questions
What does the Dwyer UV-2112 do?
The UV-2112 measures water flow from 1.0 to 10.0 GPM (4 to 38 LPM) on a dual scale, using a float in a polysulfone body with 1 in. female NPT in-line connections.
What is the flow range of the UV-2112?
The UV-2112 reads 1.0 to 10.0 GPM water, with a second scale of 4 to 38 LPM.
What are the pressure and temperature limits of the UV-2112?
The pressure limit is 150 psi (10.34 bar) and the temperature limits are 35 to 212 °F (2 to 100 °C). Ball valves can create a water cannon effect on opening, and pressure above the ratings will damage the flowmeter.
How accurate is the UV-2112?
Accuracy is ±2% FS and repeatability is ±1% FS, both at 70 °F ±2 °F (21.1 °C) and 14.7 psia, for the in-line connection rating only.
Can the UV-2112 be used in reverse osmosis or deionized water systems?
Reverse osmosis, deionized water, chill water, potable water and remediation systems are listed applications for the Series UV. Confirm the flow falls within 1.0 to 10.0 GPM (4 to 38 LPM), the system stays within 150 psi and 35 to 212 °F, and the fluid is compatible with polysulfone, fluoroelastomer and PTFE wetted parts.
Does the UV-2112 include the polycarbonate shield?
The protective polycarbonate shield is an order option designated by the -SHD suffix, and the UV-2112 part number does not carry that suffix. The A-162 in-line fitting replacement kit and A-801 panel mount kit are separate accessories.
Can the UV-2112 be installed outdoors?
No. Series UV flowmeters are for indoor use only or areas without direct sunlight, because polysulfone is adversely affected by ultraviolet light.
How should the UV-2112 be piped?
Install it in an exact vertical plane with structural supports at the top and bottom, and use pipe thread sealant tape. Pipe dope compounds can craze and crack the polysulfone housing. Maximum fitting torque is 22 ft-lb.
- Series:
- UV
- Flowmeter Type:
- Variable Area
- Flow Range:
- 1.0 to 10.0 GPM (4 to 38 LPM)
- Scale Media:
- Water
- Process Connection:
- 1 in. Female NPT
- Body Material:
- Polysulfone
- Float Material:
- PTFE
- Seal Material:
- Fluoroelastomer
- Max Pressure:
- 150 psi (10.34 bar)
- Temperature Range:
- 35 to 212 F (2 to 100 C)
