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Model 621 & 622 Under Pump/In-Line Check ValvesUnder pump/in-line check valves are designed to be installed directly in the inlet of the dispenser pumping unit to maintain prime on a suction system fuel line. The under pump/in-line check valve can also be used in a pressurized system at the submersible pump outlet to hold product in the line. |
Highlights/Advantages
- Cast in hex for sturdy wrenching surface.
- NPT threads on both ends are designed to receive female threaded product lines.
- Pressure relief models relieve thermal expansion in the pumping unit reducing the chance of vapor lock.
Materials
- Body: Brass
- Cap: Brass
- Seals: Fluorocarbon
- Spring: Stainless steal
Ordering Information
| Size | Weight | ||||
|---|---|---|---|---|---|
| PART | IN. | MM. | PRESSURE RELIEF | LBS. | KG. |
| 621-200-01 | 1.5 | 38.1 | No | 1.31 | .59 |
| 621-300-01 | 1.5 | 38.1 | Yes | 1.61 | .73 |
| 622-200-01 | 2.0 | 51.0 | No | 1.11 | .50 |
| 622-300-01* | 2.0 | 51.0 | Yes | 1.87 | .85 |
| 620-201-01 | 1.5 | 38.1 | No | 1.31 | .59 |
| *Dresser | |||||
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