Berluto DRV378 Reducing Valve (also DRV303GG)

### Stainless Steel Expansion Vessel for Heating Applications Introducing the Reliance Valves Aquasystem Heating Expansion Vessels, expertly designed for heating applications. Available in capacities ranging from 2 litres to 5000 litres, these vessels can handle maximum pressures between 8.0 and 10.0 bar. Crafted with replaceable membranes, the Aquasystem range allows for efficient in-situ servicing, eliminating water contact with the steel expansion vessel shell to minimise internal corrosion and enhance longevity. #### Features and Benefits - **Corrosion-Resistant Design**: The stainless steel bolted flange ensures maximum protection against corrosion. - **Noise Reduction**: An extra-wide membrane opening effectively mitigates noise caused by restricted flow. - **Internal Membrane Protection**: The vessel's internal membrane prevents water contact with the steel shell, halting internal corrosion and extending lifespan. - **Versatile Capacity Range**: Available in sizes from 2 to 5000 litres, suitable for various applications. - **Serviceability**: All models come with a replaceable membrane, allowing the vessel to be serviced on-site without removal. - **Convenient Pre-charge Valve**: Easily top up air pressure as needed. - **Heating Applications Only**: Specifically designed for use in heating systems. #### Specifications - **Capacity**: 200 Litres - **Colour**: Red - **Pre-Set Pressure (Bar)**: 1.5 - **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**: 1085mm - **Diameter**: 600mm - **Water Connection**: 1" MBSP #### Materials - **Shell**: Epoxy Coated Steel - **Membrane**: EPDM (Ethylene Propylene Diene Monomer) - **Bolted Flange**: Galvanised Steel #### Standards and Approvals - CE marked in accordance with Directive PED 97/23/EC - TÜV Certified Enhance your heating system with our reliable and durable stainless steel expansion vessels from the Reliance Valves Aquasystem range. Ideal for professionals looking for high-quality solutions combined with ease of maintenance.

Features & Benefits

• Our check valves are engineered to allow fluid flow in a single direction while automatically closing if the flow reverses—this functionality is influenced by the pressure and velocity of the fluid.

• The Non-Slam design features a rubber seat and spring-assisted closure, ensuring reliable operation without the risk of slamming.

• The EPDM rubber seat promotes quiet operation and enhances the seating of the disk for superior performance.

• For sizes DN200 and above, eyebolts can be fitted to the tapped holes, complying with BS EN ISO 3226: 2010 (please note, eyebolts are not included with the valve).

• The robust design and construction make this valve particularly suitable for pump duty applications.

Specification

• The face-to-face dimensions adhere to BS EN 558 series 16 standards.

• This valve can be installed in both vertical and horizontal pipelines.

• When installed in vertical pipelines, the flow direction must be upwards.

• Suitable for use with group 2 liquids only, as specified by the Pressure Equipment Directive 2014/68/EU.

Pressure/Temperature Rating

• Model: Figure 866; Pressure Rating: PN25

• Temperature range: -10°C to 120°C

The CONCOA 402 Series six-port brass regulator provides primary pressure control for ultra-high purity inert, non-corrosive, or liquefied gases. Designed for applications tolerant of minor outlet fluctuations or inlet pressures under 500 PSIG (34 BAR), it features a metal-to-metal diaphragm seal, CAPSULE® 360° filtration seat, bare brass body to prevent contamination, pipe-away relief valve, captured vent-capable bonnet, cleanroom assembly, and front/rear panel mounting. Specs: max inlet 3000–4500 PSIG (210–310 BAR), PTFE/PCTFE seats, 10 µm sintered bronze filter, 1/4 in FNPT ports, 2 in gauges, Cv 0.1, -40°F to 140°F (-40°C to 60°C). Conforms to CGA G-4.1, PED 2014/68/EU, ANSI/ASME B40.1, CRN OH5216.