CONCOA 493 Series Regulator

The Resideo Braukmann BS300 backflow preventer offers reliable protection against back pressure, backflow, and back siphonage for fluids classified up to category 4. This device is essential for maintaining the integrity of drinking water systems.

For further information on backflow prevention, we invite you to explore our informative article in the Technical section of our website.

**Product Specifications**

**Sizes Available:** 2.1/2", 3", and 4" in stock (6" and 8" available to order)
**Connections:** Flanged PN10
**Materials:** Ductile iron housing, powder coated with polyamide
**Suitable Medium:** Drinking Water
**Inlet Water Pressure:** 1.5 to 10 Barg
**Maximum Water Temperature:** 60°C
**Notes:** WRAS approved

The Altecnic / Caleffi 253 Solar Safety Valve - 253044 is essential for regulating pressure in the primary circuits of solar heating systems. This valve is specially selected based on the required set pressure. When the pressure exceeds the predefined limit, the valve opens and vents excess pressure to the atmosphere, effectively preventing excessive pressure that could harm solar collectors and other integral components within the system.

Specifications

Size: 1/2" x 3/4"
Connections: BSP Female Inlet x BSP Female Outlet
Materials: Brass (Chrome Plated)
Medium: Water, Glycol Solutions (Maximum Glycol Percentage: 50%)
Set Pressure: 4 Barg
Temperature Range: -30 to +160 °C
Product Code: 253044
Notes: CE marked

The Medenus RS255 Gas Pressure Regulator and Shut Off Valve guarantees a consistent outlet pressure, irrespective of the primary inlet pressure. This device adeptly manages variations in gas usage, providing rapid pressure regulation when there are sudden changes in flow rate. Additionally, the integrated safety shut off valve ensures secure operation by shutting off in the event of excessively high or low pressure levels.

The Medenus RS255 Gas Pressure Regulator and Shut Off Valve complies with DVGW Code of Practice G260/262 and is suitable for all neutral and non-corrosive gases (other gases available upon request). It comes with flange connections ranging from DN50 to DN100 and is capable of handling working pressures up to 16 bar. All gas pressure regulators in this range are certified by DVGW and carry CE certification.

Every regulator in the RS series boasts several options, including a safety membrane, vent valve, remote release for the shut off valve (SSV), noise reduction features, and more. For comprehensive details, please consult our documentation or reach out to our team.

Specifications

• Sizes: 2" (DN50) to 4" (DN100)
• Connections: Flanged PN or ANSI
• Materials: Housing: Silumin Casting, Internal Parts: Stainless Steel, Disk: NBR (vulcanised), Joints & Seals: Diaphragms: NBR
• Medium: Gas
• Inlet Pressure (Max): 16 Barg
• Outlet Pressure (Max): 3 Barg
• Temperature: -20 to +60 degC

Note: The regulator can be installed in any orientation and features a gas-tight zero position.