This page explains how Safety Valve is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A pressure relief device designed to automatically release excess pressure from a gas cylinder or generator to prevent catastrophic failure.
Technical details and manufacturing context for Safety Valve
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 15–100 mm | Standard flange sizes for piping integration.ISO 5208 |
| Set Pressure | 0.1–42 MPa | Pressure at which the valve opens.ISO 4126-1 |
| Operating Temperature | -40–450 °C | Temperature range for continuous service.ISO 4126-1 |
| Flow Capacity (Cv) | 0.5–120 Cv | Determines relief capacity at set pressure.ISO 4126-1 |
| Leakage Rate | ≤0.05 ml/min | Maximum allowable seat leakage at 90% set pressure.ISO 5208 |
| Response Time | ≤0.5 s | Time from pressure exceedance to full opening.ISO 4126-1 |
| Material Grade | 316L ASTM | Corrosion-resistant stainless steel for wetted parts.ASTM A351 |
| Weight | 2.5–35 kg | Depends on size and pressure rating. |
| Connection Type | Flanged DIN PN16–PN40 | Flange rating matches system pressure.DIN EN 1092-1 |
| Pressure Rating | PN16–PN40 bar | Maximum allowable working pressure at 20°C.DIN EN 1092-1 |
| Seat Tightness Class | Class VI ISO 5208 | Meets stringent leakage requirements for gas service.ISO 5208 |
| Repeatability | ±1 % | Consistency of set pressure across cycles.ISO 4126-1 |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Set pressure range: 1 to 300 bar |
| flow rate: | Based on orifice size (e.g., D to T orifice per API 526) |
| temperature: | -20°C to 150°C |
| slurry concentration: | Not applicable for gas cylinders/generators; suitable for clean gases only |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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The set pressure range is 0.1–42 MPa, per ISO 4126-1. However, the exact set pressure for your application must be confirmed with the manufacturer, as it depends on the system design and safety requirements.
The valve is available in stainless steel or brass. For wetted parts, the material grade is stainless steel 316L (ASTM A351). Confirm the material compatibility with your process media and operating conditions.
The maximum allowable seat leakage at 90% set pressure is ≤0.05 ml/min, per ISO 5208. This ensures minimal leakage during normal operation. Verify the actual leakage performance with the manufacturer for your specific model.
The valve references ISO 4126-1 for set pressure, flow capacity, response time, and repeatability; ISO 5208 for leakage rate and seat tightness class; and DIN EN 1092-1 for connection type and pressure rating. Compliance must be verified with the manufacturer for the specific model.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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