Sempell Model MiniS Safety Relief Valve

The Sempell Model MiniS Safety Relief Valve, engineered by Emerson, is a compact, high-performance safety device designed to provide dependable overpressure protection in steam, gas, and liquid systems. Renowned for its precision engineering and durability, the MiniS model combines innovative design, superior materials, and precise opening characteristics to ensure maximum safety and system reliability in demanding applications. Built to meet international pressure relief standards, the MiniS valve is ideal for use in power generation, chemical processing, oil and gas, and general industrial systems, where accurate pressure control is essential. Its compact, lightweight design makes it particularly suitable for installations with limited space, without compromising performance or safety. The valve’s optimized seat and disc design ensures tight shutoff and repeatable lift performance, minimizing leakage and ensuring consistent operation under cyclical pressure conditions. The Sempell MiniS can be configured for a wide range of set pressures, allowing it to be tailored precisely to system requirements.

Technical Specification of Sempell Model MiniS Safety Relief Valve

Size Inlet

DN 15 – 25 NPS ½” – NPS 1″

Pressure rating

PN 10 – 40 Class 150 – 300

Temperature range

-200°C – + 200°C -300°F – +300°F

Set pressure

0.5 bar – 52 bar

Orifice Diameter

14 mm

Design

Flanges and threads according to DIN, BS and ASME

Body material

1.0619 / A216 WCB 1.4408 / A351 CF8M

Accessories

soft seat, lifting lever, test gag, reinforced bellows

Feature of Sempell Model MiniS Safety Relief Valve

• Pop action
• Mechanical lift ensures functional stability
• High allowable back pressure
• One design for steam, gases and liquids
• Self-aligning spring assembly
• Low friction, spring compression
• Low maintenance
• Soft seat options for superior seat tightness