Maria Valve
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| Sealing Material | Temperature Range | Key Features |
|---|---|---|
| FKM | -30 ~ 180℃ | Oil, gas, chemical media resistance |
| PTFE | -60 ~ 170℃ | Strong chemical resistance |
| RPTFE | -60 ~ 220℃ | High-temp stability |
| EPDM | -40 ~ 110℃ | Hot water, HVAC systems |
| Metal-to-Metal | Higher | Long-life durability |
• System pressure acts on the disc from the inlet side.
• The pre-compressed spring keeps the disc tightly sealed under normal operation.
• When pressure reaches the set point, upward force overcomes spring force and the disc pops open instantly.
• High-velocity discharge stabilizes the valve in a full-open position for rapid pressure release.
• As pressure drops below the reseating point, the spring pushes the disc back to the seat for a leak-free seal.
| Inlet | d | Outlet | Lift | L1 | L2 | H |
|---|---|---|---|---|---|---|
| 1/2" | 13 | 1/2" | 0.5 | 30.5 | 46 | 157 |
| 3/4" | 19 | 3/4" | 0.7 | 35 | 54 | 169.5 |
| 1" | 25 | 1" | 0.9 | 40.5 | 66.5 | 200 |
| 1 1/4" | 32 | 1 1/4" | 1.2 | 50 | 73.5 | 216 |
| 1 1/2" | 38 | 1 1/2" | 1.4 | 59 | 86 | 243.5 |
| 2" | 50 | 2" | 1.8 | 65 | 95.5 | 281.5 |
Each valve is tested individually for set-point accuracy.
Disc, seat, spindle, and body processed with high precision for perfect fit.
All-metal structure ensures a long lifespan even in harsh environments.
Set pressure, connection type, and lever styles can be tailored to requirements.
