Bailey 716SSD Safety Relief Valve (Metal disc with Dome Top – Suitable for Steam & Liquid Service)

**Features & Benefits** - Dezincification resistant - Lightweight, compact, and straightforward to install and operate - Enhanced leak protection - Increased durability during installation - Available in sizes ranging from 15mm to 28mm - WRAS Approved **Specifications** - UK End Connection: Compression - Ends compliant with BS EN 1254-2:1998 - Operator: Lever - Quarter turn operation for ease of use - PTFE seats and stem seal for reliability - WRAS listed for quality assurance - Suitable for Low Temperature Hot Water (LTHW), chilled, and wholesome (potable) water services **Pressure/Temperature Rating** - Please refer to the datasheet for detailed pressure and temperature ratings. This product is designed to provide optimal performance, ensuring safety and reliability in your water service applications. With WRAS approval and robust materials, you can trust in its quality and efficiency.

Features & Benefits

• Resistant to dezincification
• Lightweight, compact, and easy to install and operate
• More durable to damage during installation
• Available in sizes ranging from 1/4" to 2"
• Compliant with BS EN 331:1998 testing standards

Specifications

• UK End Connection: BS EN 10226-2:2005 (formerly BS21 Taper)
• US End Connection: ANSI B1.20.1:1983
• Operator Type: Lever
• Specification: Quarter turn mechanism with PTFE seats and stem seals
• Tested by GL Industrial Services, meeting the essential requirements of BS EN 331:1998

Pressure/Temperature Rating

• -10 to 100 °C at 25 Barg
• 110 °C at 23.5 Barg

The AURA EXD is an advanced automatic switchover system designed to provide a continuous supply of high-purity gases at inlet pressures of up to 4500 psig. Featuring an integrated EX1 line regulator, the EXD guarantees stable and consistent outlet pressures, even in demanding conditions. At its core, the EXD boasts AURA’s innovative encapsulated seat design, which streamlines multiple moving components into a single unit. This design not only simplifies maintenance but also reduces potential points of failure, enhancing long-term reliability. The seat is protected by a 10-micron, 360° filter, offering superior particle filtration compared to standard pressed-in disks. Unlike conventional regulators that only filter at the pipeline port, the EXD effectively defends against harmful contaminants from all inlet points. AURA employs a precision machining process that achieves ultra-smooth surface finishes of 4–25 Ra, minimising corrosion and prolonging service life. Optional inlet purge or shutoff valve assemblies further decrease the number of required connections, thus reducing potential leak paths and internal volume. This, combined with its minimal internal volume, enhances the EXD's efficiency by lowering purge gas requirements. Each EXD regulator is assembled in a Class 100 cleanroom, ensuring that the complete system is meticulously cleaned for oxygen service and subjected to 100% helium leak testing. Every unit also undergoes rigorous flow and functionality testing, ensuring durability, purity, and reliability, even in the most challenging environments. With its exceptional flexibility, efficiency, and innovative functionality, the AURA EXD is the preferred choice for engineers requiring an uninterrupted supply of high-purity gases.