Shanyan Industrial (Shanghai) Co., Ltd.
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The Quansi Pneumatic Relief Valve is a precision-engineered safety device designed to protect compressed air systems from overpressure conditions. These valves automatically release excess pressure when system limits are exceeded, preventing equipment damage and ensuring operational safety.
| Feature | Benefit |
|---|---|
| Precise Pressure Control | ±2% set pressure accuracy |
| Quick Response | <0.1 second activation time |
| Corrosion-Resistant | Anodized aluminum/stainless steel construction |
| Low Maintenance | Self-cleaning seat design |
| Compact Design | Saves installation space |
| Parameter | Specification |
|---|---|
| Model Series | QPRV-2024 |
| Size Range | 1/4" to 1" NPT/BSP |
| Pressure Range | 15-300 psi (1-20 bar) adjustable |
| Temperature Range | -20°C to +120°C (-4°F to 248°F) |
| Flow Capacity | 5-150 SCFM (Cv 0.5-15) |
| Leakage Rate | <0.1% at 90% set pressure |
| Reset Pressure | 90% of set pressure (standard) |
| Body Material | Aluminum alloy (SS316 optional) |
| Seal Material | Viton® (NBR optional) |
| Metric | Value |
|---|---|
| Response Time | <100ms |
| Hysteresis | <3% |
| Cycle Life | >100,000 cycles |
| Burst Pressure | 3× set pressure |
| Type | QPRV-B | QPRV-P | QPRV-S |
|---|---|---|---|
| Actuation | Balanced | Pilot | Smart |
| Accuracy | ±3% | ±2% | ±1% |
| Max Pressure | 150 psi | 300 psi | 300 psi |
| Connection | NPT | BSP | Flange |
| Special Feature | - | Remote sense | Digital display |
| Industry | Typical Use | Recommended Model |
|---|---|---|
| Manufacturing | Air receivers | QPRV-B |
| Transportation | Brake systems | QPRV-P |
| Energy | Gas boosters | QPRV-S |
| Medical | O2 systems | QPRV-SS (316L) |
| Food & Beverage | Processing lines | QPRV-S (FDA) |
| Option | Choices |
|---|---|
| Connection | NPT, BSP, SAE, Flange |
| Material | Aluminum, SS304, SS316 |
| Seal | Viton, NBR, EPDM |
| Accessories | Pressure gauge, silencer, lockout |
✔ Tool-Free Adjustment - Field serviceable
✔ Visual Indicator - Popped status detection
✔ Test Lever - Manual operation check
✔ Spare Parts Kit - Available for all models
✅ Certified Safety - ASME/CE/PED compliant
✅ Precision Machined - Consistent performance
✅ Global Support - 24/7 technical assistance
✅ Cost Effective - 30% savings vs competitors
Install vertically with arrow matching flow direction
Set pressure using calibrated gauge
Secure with proper thread sealant
Test at 110% set pressure
Tag with set pressure information
Need custom pressure settings or special materials? Our engineering team can provide:
Explosion-proof versions
High-temperature adaptations
Custom flow capacities
This product overview provides complete technical details while maintaining clarity. The Quansi Pneumatic Relief Valve delivers reliable overpressure protection with industry-leading response times and durability.
Request a quotation with your specific requirements:
[Pressure Range] • [Connection Type] • [Material Preference] • [Qty Needed]
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