Adjustable Fixed Flow Regulator
Series 3980
Description
The 3980 series provides the control of the single fixed flow regulators with the advantage of being able to change flow rates as required for different applications. This regulator eliminates the need to have multiple regulators on-site. There are models suitable for use with non-corrosive gases and mildly corrosive gases. Commonly called the “click” regulator it has 12 flow positions, OFF, 0.3, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 5.0, 6.0, 7.0, and 8.0 slpm. NOTE: Flow rates are estimated. Actual flow rates will vary depending on gas service and pressure.
Features
- Adjustable delivery pressure.
- Integral needle valve for shut-off and to control flow.
- Integral CGA 600 connection provides compactness and minimal loss of gas during installation and removal.
- 0-300 psig inlet pressure gauge to monitor cylinder pressure.
Specifications
- 12 fixed flow settings.
- 0-3000 psig cylinder pressure gauge.
- Max. inlet pressure 3000 psig.
- Available with standard C-10 (5/8”-18 UNF) or a standard CGA cylinder connection.
- 3/16” hose barb outlet.
- 40 micron inlet filter.
Materials of Construction
3981
- Body: clear anodized aluminum
- Piston: brass
- Orifice plate: ceramic
- Main valve seat: Teflon®
- Piston seals: Viton®
- Pressure gauge: SS case with brass socket
3982
- Body: clear anodized aluminum
- Piston: stainless steel
- Orifice plate: ceramic
- Main valve seat: Teflon®
- Piston seals: Viton®
- Pressure gauge: stainless steel
How To Order
| Model No.* | Description |
|---|---|
| 3981 | non-corrosive gas regulator with C-10 connection |
| 3981-CGA* | non-corrosive gas regulator with standard CGA connection |
| 3982 | corrosive gas regulator with C-10 connection |
| 3982-3K | corrosive gas regulator with C-10 connection rated for 3000 psig |
| 3982-CGA* | corrosive gas regulator with standard CGA connection |
|
*Specify CGA connection when ordering. |
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