Altecnic / Caleffi 253 Solar Series Pressure Safety Relief Valve 1/2" x 3/4" F x F 3 Bar - 253043

The BESA 241 Safety Relief Valve is a flexible and dependable solution tailored for use with water, air, steam, and other neutral liquids, gases, and vapours. Constructed from robust materials such as cast iron, carbon steel, or stainless steel, this valve delivers exceptional performance across a wide range of temperatures and pressures. Featuring flanged connections and available in various sizes, it ensures compatibility with diverse systems. Perfect for industrial applications, the BESA 241 meets PED, ATEX, and other essential design standards.

Specifications

Sizes: 3/4" x 1.1/2", 1" x 1.1/2", 1.1/4" x 2", 1.1/2" x 2.1/2", 2" x 3", 2.1/2" x 4", 3" x 5", 4" x 6" (larger sizes available)

Connections: Flanged PN16 and PN40 (Flanged ANSI available upon request)

Materials: Cast Iron (GS250), Carbon Steel (ASTM A216 WCB), or Stainless Steel (ASTM A351 CF8M)

Disk: Metal, Viton (other materials available upon request)

Joints & Seals:

Medium: Water, Air, Steam, and other neutral liquids, gases, and vapours

Set Pressure: 0.2 to 40 BarG (dependent on size and flange rating)

Temperature: Please contact us for temperature limitations for this valve

Design Standards: PED, ATEX, GOST, RINA

Notes: Optional extras include an open bonnet and PFA lined nozzle.

## Features & Benefits • Pressure Reducing Valves (PRVs) provide precise control of pressure from boosted hot and cold water supplies, tailored to meet site specifications. • Supplied with male union tailpieces for straightforward installation, significantly reducing on-site time. • Equipped with an integral strainer that prevents debris from compromising valve performance. • We recommend installing isolation valves both upstream and downstream of the valve to facilitate easy strainer cleaning. • Performance conforms to the BS EN 1567 standard, ensuring high-quality assurance. • Convenient access for measuring outlet pressure. • A separate pressure gauge can be ordered to monitor outlet pressure for each installed valve. • WRAS Approved for drinking water applications, rated up to 80°C. ## Specification • **Medium:** Water Only • **Connections:** Male union tapered tailpieces compliant with BS EN 10226-1 • **Outlet Pressure Range:** 1-6 bar • **Pre-set Outlet Pressure:** 3 bar • **Design Standard:** BS EN 1567 • **Approvals:** WRAS / PED 2014/68/EU • **Mesh Size:** 0.5mm across all sizes ## Pressure/Temperature Rating For optimised performance and reliability in your water supply systems, choose our WRAS-approved Pressure Reducing Valves, designed to enhance water management while ensuring compliance with UK standards.

The Reliance Water Controls (RWC) TPR15 Pressure and Temperature Relief Valves are compact yet robust solutions, expertly designed to safeguard against over-pressurisation in unvented hot water systems. These essential valves are specifically intended for installation at the upper section of a hot water cylinder, where the highest temperatures are typically encountered. In the event that the system temperature exceeds 95°C, the wax mixture within the temperature probe's element expands, lifting the valve off its seat to release water safely, thereby alleviating pressure within the cylinder. Furthermore, if water pressure escalates without a corresponding temperature rise, the valve remains shut until the predefined pressure of the relief mechanism is reached, at which point it will open to release excess pressure. Certain models feature a PTFE coating on the Male BSP inlet thread, facilitating a quicker and more efficient installation process. 

Features and Benefits:

• Provides protection against temperatures exceeding 95°C
• Prevents over-pressurisation of the system
• Twist top cartridge design for straightforward servicing
• Available with various pressure settings and probe lengths
• Includes PTFE coating in select models

Specifications:

• Size: 1/2" x 15mm
• Connections: BSP Male Inlet x Compression Outlet
• Materials: Brass
• Medium: Hot water only
• Set Pressure (Set & Locked): 7 Barg
• Temperature Relief: +90 to 95°C
• Discharge Capacity: 10 kW
• Probe Length: 95mm
• Product Code: PTEM550854
• Notes: With PTFE, WRAS approved

Invest in the RWC TPR15 Pressure and Temperature Relief Valves for reliable performance and peace of mind in your hot water systems.