Altecnic / Caleffi Pressure Relief Valve 3/4" Loose Nut Connection x 1/2" F 6 Bar - A311501CST

**Stainless Steel Expansion Vessel for Heating Applications** Introducing the Reliance Valves Aquasystem Heating Expansion Vessels, expertly designed for superior performance in heating applications. Available in a variety of sizes, from 2 litres to an impressive 5000 litres capacity, these expansion vessels feature a maximum pressure range of 8.0 to 10.0 bar. Engineered with replaceable membranes, the Aquasystem range ensures easy servicing on-site, preventing any water contact with the steel shell to eliminate internal corrosion and significantly prolong the vessel's lifespan. **Key Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange effectively prevents corrosion, ensuring durability and reliability. - **Noise Reduction:** An extra-wide membrane opening mitigates noise that can arise from restricted flow. - **Internal Protection:** The internal membrane guarantees no water contact with the steel shell, thus preventing internal corrosion. - **Comprehensive Range:** Our expansion vessels are available in capacities from 2 to 5000 litres, catering to all heating application needs. - **Efficient Servicing:** Each vessel comes equipped with a replaceable membrane, allowing for service without the need for removal. - **Convenient Pre-Charge Valve:** Easily top up air pressure with the included pre-charge valve. - **Specialised for Heating Applications:** These vessels are specifically designed for heating systems only. **Specifications:** - **Capacity:** 1000 Litres - **Colour:** Red - **Pre-Set Pressure (Bar):** 4 - **Maximum Pressure (Bar):** - Up to 500 Litres: 8.0 bar - 750 Litres and above: 10.0 bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 2160mm - **Diameter:** 800mm - **Water Connection:** 2" MBSP **Materials:** - **Shell:** Epoxy Coated Steel - **Membrane:** EPDM - **Bolted Flange:** Galvanised Steel **Standards and Approvals:** - CE marked in accordance with Directive PED 97/23/CE - TUV Certified Upgrade your heating system with the superior quality and reliability of Reliance Valves Aquasystem Heating Expansion Vessels today!

**Stainless Steel Expansion Vessel for Potable Water Applications** The Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels are expertly designed to accommodate the increased load within a water system as water heats and expands. These expansion vessels play a crucial role in maintaining safe operating levels by effectively preventing pressure build-up in both sealed heating systems and cold water systems. Featuring a replaceable membrane, these vessels prevent water from coming into contact with the steel shell, thereby avoiding corrosion and contamination, ensuring that the water remains safe for human consumption. The replaceable membrane also allows for easy servicing without the need to remove the vessel, enabling quick and efficient in-situ maintenance. **Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange prevents corrosion, ensuring durability and longevity. - **Quiet Operation:** The extra-wide membrane opening helps reduce noise resulting from restricted flow. - **Protective Internal Membrane:** Prevents any direct contact between water and the steel shell to stop internal corrosion. - **Versatile Capacity Range:** Available in sizes from 2 to 5000 litres, suitable for a variety of applications. - **Easy Servicing:** All models come equipped with a replaceable membrane, allowing for servicing without vessel removal. - **Pre-Charge Valve:** Convenient for topping up air pressure. - **Hot and Cold Water Compatibility:** Designed specifically for hot and cold water use only. **Specifications:** - **Capacity:** 24 Litres - **Colour:** White - **Pre-Set Pressure (Bar):** 3 - **Max Pressure (Bar):** 10.0 - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 489mm - **Diameter:** 280mm - **Water Connection:** 3/4" MBSP - **Miscellaneous:** Comes complete with wall bracket and accessories - **Product Code:** XVES050065 **Materials:** - **Shell:** Epoxy Coated Steel - **Membrane:** EPDM - **Bolted Flange:** Stainless Steel **Standards and Approvals:** - WRAS approved for tanks up to 1000 litres - CE marked in accordance with Directive PED 97/23/CE - TÜV Certified - Materials for 1000 - 5000 litre models comply with BS 6920 Enhance your potable water system with the Reliance Valves Aquasystem Expansion Vessel, designed for efficiency, safety, and ease of maintenance.

The CONCOA 205 Series is a four-port, chrome-plated forged brass point-of-use regulator designed for high purity inert gas applications. It delivers secondary pressure control for non-corrosive, liquefied, high purity gases (up to grade 4.5) and is well suited to high purity gas distribution systems. With a maximum inlet pressure rating of at least 3000 PSIG (210 BAR), depending on configuration, it supports safe operation with high-pressure cylinders. Factory-installed options allow the regulator to be configured as a single-station manifold, with or without purge functionality.

Features:

• 316L stainless steel diaphragm reduces inboard diffusion

• CAPSULE® seat design provides integral 360° filtration

• 3000 PSIG inlet rating enables safe high-pressure use

• Standard relief valve protects gauges and diaphragm

• Helium leak-tested to ensure leak integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR)

• Body: Chrome-plated forged brass; Bonnet: Chrome-plated die-cast zinc

• Gauge: 2½" (63 mm) plated case

• Seat: PTFE; Filter: 10-micron sintered bronze

• Temperature range: -40°F to 140°F (-40°C to 60°C)

• Diaphragm: 316L stainless steel; Cv: 0.28

• Helium leak integrity: 1 × 10⁻⁸ scc/sec

• Internal seals: PTFE; Ports: 1/4" FNPT

• Compliance: CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, CRN OH5216