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Steam Safety Valve Manufacturer in Italy – Valvesonly Europe

Valvesonly Europe is a trusted Steam Safety Valve Manufacturer in Italy, producing high-quality spring-loaded and pilot-operated safety valves designed to protect pressurized systems from overpressure conditions. Our valves are manufactured in Italy under strict quality control and certified according to PED 2014/68/EU, EN ISO 4126, and ASME Section VIII. Built for durability, precision, and quick response, these valves ensure safe and reliable operation in steam, boiler, and thermal process applications.

Function & Working

A steam safety valve automatically releases excess pressure when system pressure exceeds the set limit. The valve is held closed by a calibrated spring load that balances against inlet pressure. When the set pressure is reached, the force overcomes the spring tension, lifting the disc and releasing steam until pressure returns to safe levels. When system pressure drops below the reseat value, the valve closes tightly to prevent steam loss.
Valvesonly Europe designs both spring-loaded and pilot-operated configurations to cover the full range of steam, condensate, and thermal service requirements in power and industrial plants.

Advantages

Certified to EN ISO 4126, ASME Section VIII, and PED 2014/68/EU
Quick-opening, full-lift design for instant pressure relief
High seat tightness to minimize steam leakage
Corrosion and erosion-resistant internals for long service life
Soft-seat and metal-seat options available based on process conditions
Suitable for saturated and superheated steam duties
Available with open bonnet, closed bonnet, or balanced bellows designs

Types of Steam Safety Valves Offered

Spring Loaded Safety Valve
Pilot Operated Safety Valve
Full Lift Safety Valve
High Pressure Safety Valve
Low Pressure and Thermal Relief Valve
Bellow Sealed Safety Valve

Industries Served

Power Generation and Boiler Systems
Petrochemical and Refinery Plants
Thermal Oil and Process Heating Systems
Textile, Paper, and Food Processing Industries
Marine and Offshore Steam Utilities
District Heating and Cogeneration Systems

Materials (Body, Bonnet, Trim, and Seat)

Technical Specifications

Design Standards: EN ISO 4126, ASME Section VIII, PED 2014/68/EU, API 526
Testing Standards: API 527, EN 12266-1
Size Range: DN15 – DN300 (½″ – 12″)
Pressure Ratings: PN10 – PN400 / Class 150 – 2500
Temperature Range: –46 °C to +550 °C (depending on material)
End Connections: Flanged (EN 1092 / ASME B16.5), Threaded (NPT/BSP), Welded (BW/SW)
Set Pressure Range: 1 bar to 250 bar
Seat Type: Metal-to-Metal or Soft-Seated
Operation: Spring-Loaded or Pilot-Operated

Special Features

Full lift for maximum discharge capacity
Anti-corrosion and anti-sticking stem design
Balanced bellows option for fluctuating backpressure
Soft seat or metal seat based on process requirements
Custom orifice sizing per EN ISO 4126 and API 526

Why Choose Valvesonly Europe

Italian manufacturing precision with PED and ISO-certified design
Reliable operation for power plants, boilers, and industrial utilities
Comprehensive range covering all steam and thermal relief applications
Custom-built materials and seat configurations for process-specific demands
Fast delivery across Europe with full test certificates and documentation