MODEL 140 LIQUID RELIEF VALVE
• Compact design requires minimum installation space.
• Angle lapped seat provides tight shutoff.
• Tested and inspected for pressure setting and leakage.
• Female NPT inlet option available.
• 50 psig (3.45 barg) maximum back pressure[1].
NOTE
1. Back pressure increases set pressure on a one to one basis, and reduces capacity. Back pressure in excess of 10% of set pressure is not recommended.
GENERAL APPLICATION
Model 140 is a general utility valve of all stainless steel construction, including spring, for non-code liquid applications.
TECHNICAL DATA
| Connections: | Threaded NPT |
| Temperature range: | -60° to 406°F (-51° to 208°C) |
| Pressure range: | 10 to 300 psig (1.69 to 20.7 barg) |
PARTS AND MATERIALS
| No. | Part Name | Material |
| 1 | Nozzle | SS A582-303 |
| 2 | O-ring | PTFE |
| 3 | Disc | SS A743-CF8 |
| 4 | Bonnet | SS A743-CF8 |
| 5 | Spring | SS A313-302 |
| 6 | Gasket | PTFE |
| 7 | Compression screw | SS A479-304 |
| 8 | Cap | SS A479-304 |
SPECIFICATIONS
| Size | Dimensions (in) | Weight | |||
| Inlet | Outlet | A | B | C | (oz) |
| ⅜” or ½” | ½” | 2¼ | 11/16 | 4 | 14 |
Dimensions are for reference only
SELECTION GUIDE
| Example: | 0140 | - | B | 01 | - | M | E | 0100 |
| Model 0140 | ||||||||
| Inlet size B ⅜" C ½" | ||||||||
| Variation 01 Catalog standard 02 FNPT x FNPT | ||||||||
| Design revision Indicates non-interchangeable revision Dash (-) if original design | ||||||||
| Service M Non-code liquid | ||||||||
| Spring material E 302 SS | ||||||||
| Set pressure 0060 60 psig (4 barg) 4000 4000 psig (276 barg) |
CAPACITIES FOR NON-CODE LIQUID – 25% ACCUMULATION (GPM)
| Set pressure | Capacity |
| psig | GPM |
| 10 | 0.9 |
| 20 | 1.5 |
| 30 | 2.1 |
| 40 | 2.8 |
| 50 | 3.4 |
| 60 | 4.1 |
| 70 | 4.8 |
| 80 | 5.5 |
| 90 | 6.2 |
| 100 | 6.9 |
| 110 | 7.6 |
| 120 | 8.3 |
| 130 | 9.0 |
| 140 | 9.6 |
| 150 | 10.2 |
| 160 | 10.8 |
| 170 | 11.3 |
| 180 | 11.8 |
| 190 | 12.3 |
| 200 | 12.8 |
| 210 | 13.2 |
| 220 | 13.5 |
| 230 | 13.8 |
| 240 | 14.1 |
| 250 | 14.3 |
| 260 | 14.5 |
| 270 | 14.6 |
| 270 | 14.6 |
| 290 | 14.6 |
| 300 | 14.5 |
