Emerson Kunkle 337 Safety Relief Valve 1

The Altecnic / Caleffi Relief Valve - Pushfit Inlet - 312408 BRT is designed for use in domestic hot water systems, providing essential protection for hot water cylinders. Additionally, this relief valve safeguards heating systems, such as boilers and other critical components. The valve is chosen based on the required set pressure; as the pressure within the system increases and reaches the designated discharge pressure, the valve opens, releasing excess pressure to the atmosphere. This action prevents potentially dangerous pressure levels that could affect the boiler, hot water storage cylinder, and personnel nearby.

Product Specifications

Size: 1/2" x 1/2" Connections: Pushfit Inlet x BSP Female Outlet Materials: Brass Medium: Air and Water Set Pressure: 3 Barg Temperature Range: +5 to +110 °C Product Code: 312408 BRT

The Hattersley Fig 1732L Fixed Orifice Double Regulating Valve (FODRV - Low Flow) is a high-performance commissioning solution designed for precise flow regulation. It boasts an impressive accuracy of ±5% across all settings, making it ideal for various applications. The integral fixed orifice design not only enhances accuracy, but also simplifies installation by reducing connections, ultimately leading to lower installation costs.

Features & Benefits

• Delivers precise and accurate flow regulation
• Easy operation with a handwheel and clear numerical indicator
• Combines integral orifice with built-in test points, eliminating the need for separate DRV and metering station
• WRAS Approved for use with potable water at temperatures up to 85°C
• Ensures positive flow control across all handwheel settings
• Maintains ±5% accuracy for both flow regulation and measurement

Specifications

• Complies with BS7350: 1990
• Operated via a handwheel
• Features a numerical indicator for ease of use
• Includes an inside screw non-rising handwheel
• Equipped with a characterised regulating disc
• Contains an integral fixed orifice
• Supplied with two Figure 631 test points
• Threaded end connections
• Available in sizes ranging from 1 to 2" taper threaded
• Conforms to BS EN 10266 (ISO 7-1), formerly BS 21
• Sizes 1/2" & 3/4" conform to ISO 228 parallel
• WRAS Approved Product

Pressure/Temperature Ratings (Threaded Ends)

• BS 7350 PN20
• 17.2 bar at 120ºC
• 20 bar from -10 to 100ºC

Compression Ends

• 5 bar at 120ºC
• 6 bar at 110ºC
• 10 bar at 65ºC
• 16 bar from -10 to 30ºC
• WRAS approval temperature range: -10 to 85ºC

For reliable and accurate flow regulation, choose the Hattersley Fig 1732L Fixed Orifice Double Regulating Valve—engineered for efficiency and approved for potable water use.

Product Specifications

Sizes Available: 3/4", 1", 1.1/4", 1.1/2", 2" Connections: Screwed BSPP Materials: Stainless Steel (69.2) Disk Material: Viton Joints & Seals: Suitable for Liquids Set Pressure Range: 0.3 to 5.7 Barg (depending on size) Temperature Range: (69.2) -60 to +130°C, (69.3) -10 to +130°C Design Compliance: TUV Certified Important Note: The Brass variant (69.3) is no longer available.

Explore our high-quality pressure regulations solutions tailored for optimal performance across a range of applications. Our durable stainless steel construction ensures longevity, while the Viton disk material offers excellent chemical resistance. With precise set pressure settings and a comprehensive temperature range, these products are ideal for various liquid handling requirements.