About Safety Valve
HYDRAULIC FEATURES |
| The "light" model security valve with manual hand wheel is an automatic safety valve designed to open in the event the internal pressure of the system reaches a predetermined maximum pressure (Preset Nominal Pressure: Pnr) allowing the water to be released through it. The security valve resets automatically when the internal pressure of the system returns below the predetermined maximum pressure. All the moving parts of this safety valve, including the regulating spring, are isolated from heat-transfer fluids by an industrial rubber diaphragm. The "light" model security valve with manual hand wheel satisfies the essential safety requirements stipulated in the EU Pressure Equipment Directive (PED) 97/23/EC. |
| Pressure : | |
| | Maximum allowable working pressure (PN) | | 10 bar | | Preset nominal pressure (Pnr) | | 3-4-5-6-7-8 bar (factory set and sealed) | | Minimum accumulation pressure (Pc) | | Minimum accumulation pressure (Pc) | | Temperature : | |
| | Maximum temperature | | 115° C (water or air - Class 1 Liquids) | | Threading: | |
| | Pipeline connection | | Threads according to ISO 228/1 | | Compatible fluids: | | | Heat transfer fluids in compliance with Italian national standards (UNI 8065 § 6) | | | | Glycolate solutions (glycol) | | 50% | | Requirements and tests as per: | | EN 1489 | | PED TECHNICAL REQUIREMENTS | | | | Maximum allowable temperature (TS) | | 115° C (water or air - Class 1 Liquids) | | Maximum allowable working pressure (PS) | | 10 bar | | Conformity assessment procedures | | modules B and D | | PED risk category | | IV (CE 1115) | | Flow Coefficient | | (K) = 0.05 - Classified as an "Ordinary Valve" by the ISPESL (Italian Institute for Occupational Safety Prevention) | | DESIGN | | Brass Body EN 12165 - CW617N | | | | Head valve in PA66-GF30 polyamide (nylon 66) reinforced with glass fiber | | | | Handwheel in PA66 polyamide (nylon) | | | | Diaphragm in 70 Sh preshaped EPDM rubber (peroxide cured) | | | | Sm GALVANIZED STEEL spring - EN 10270-1 | | PRODUCT SIZES | | 15 - M - 1/2" | | | | SETTINGS |
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Engineered for Maximum Safety and PerformanceThis safety relief valve combines full-lift technology and spring actuation to deliver superior discharge rates and instant response to overpressure scenarios. Incorporating a high-tensile stainless steel spring and robust materials like cast iron, stainless steel, or brass, it guarantees durability in harsh operating conditions. Available in corrosion-resistant finishes and customizable connections, installation is straightforward for a wide variety of industrial setups.
Versatile Applications and Enhanced LongevityEngineered to handle diverse mediaair, steam, water, gas, and oilthe valve suits boilers, pipelines, oil & gas installations, and other pressure vessel systems. The option of metal-to-metal or soft seated sealing ensures optimal sealing integrity and service longevity. Combined with low maintenance requirements and optional inspection port, this valve reduces operational downtime and ensures ongoing system reliability.
FAQs of Safety Valve:
Q: How is this safety valve installed, and in what positions can it be mounted?
A: The safety valve is designed for vertical installation and is available with either screwed (BSP/NPT) or custom flanged end connections. This enables easy integration into most standard pipelines or vessels where pressure relief is required.
Q: What is the process for the valves operation during overpressure situations?
A: When system pressure exceeds the set value, the high-tensile stainless steel spring compresses, causing the valve to open fully (full lift). This rapid action allows high discharge of the mediumair, gas, steam, water, or oilto relieve pressure and protect the system.
Q: Where can the safety valve be applied most effectively?
A: The valve is suitable for use in boilers, pressure vessels, pipelines, and various oil & gas installations, providing essential pressure protection in industrial environments requiring reliable overpressure control.
Q: What are the benefits of the nickel or chrome plated body finish?
A: Nickel or chrome plating offers superior resistance to corrosion and wear, enhancing the longevity and reliability of the safety valve, especially in challenging or corrosive atmospheres.
Q: When should the inspection port feature be considered?
A: The inspection port, available upon request, is beneficial for applications where periodic inspection or maintenance checks are vital to ensure ongoing valve performance and compliance with safety standards.
Q: What media can this safety valve accommodate, and at what temperatures?
A: This valve is compatible with air, gas, steam, water, and oil, functioning effectively within a wide temperature range from -20C to +200C, making it versatile for varied industrial processes.