Reliance RWC 300 Litre Aquasystem Potable Expansion Vessel Pre Set 3.5 Bar - XVES050140

Reliance RWC 300 Litre Aquasystem Potable Expansion Vessel Pre Set 3.5 Bar - XVES050140

**Stainless Steel Expansion Vessels for Potable Water Applications** Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels—expertly crafted for managing the additional load within water systems as the water heats and expands. These vessels are designed to maintain safe operating conditions by preventing pressure build-up in both sealed heating systems and cold water systems. Our expansion vessels feature a unique replaceable membrane that protects the water from contact with steel, thereby reducing the risk of corrosion and contamination. This ensures that the water remains safe for human consumption. The replaceable membrane also facilitates easy servicing without the need for removal, enabling rapid maintenance directly in situ. **Key Features and Benefits:** - **Corrosion-Resistant Construction:** The stainless steel bolted flange ensures durability and long-lasting performance. - **Enhanced Flow Design:** An extra wide membrane opening minimises noise caused by restricted flow. - **Internal Protection:** The internal membrane eliminates any water contact with the steel shell to prevent internal corrosion. - **Versatile Capacity Range:** Available in sizes from 2 to 5000 litres, catering to a variety of applications. - **Servicing Ease:** Each model comes equipped with a replaceable membrane for convenient servicing without the need to remove the vessel. - **Air Pressure Maintenance:** Each vessel includes a pre-charge valve for easy air pressure topping up. - **Temperature Compatibility:** Suitable for both hot and cold water. **Specifications:** - **Capacity:** 300 Litres - **Colour:** Blue - **Pre-Set Pressure (Bar):** 3.5 - **Max Pressure (Bar):** 10.0 - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 1240mm - **Diameter:** 650mm - **Water Connection:** 1.1/4" MBSP - **Product Code:** XVES050140 **Materials:** - **Shell:** Epoxy Coated Shell - **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 - TUV Certified - Materials for 1000 - 5000 litre models comply with BS 6920 Ensure optimal performance and safety in your water systems with our premium stainless steel expansion vessels. Perfect for both residential and commercial settings, trust Reliance Valves for your potable water needs.
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Other Products and Services from Flowstar (UK) Ltd

CONCOA 315 Series Regulator

CONCOA 315 Series Regulator

The CONCOA 315 Series is a chrome-plated brass, dual-stage cylinder regulator designed for inert and non-corrosive gases in medical laboratory applications. Its two-stage design ensures stable outlet pressure or flow by compensating for gradual cylinder pressure drops. The regulator provides point-of-use control across five pressure ranges, from 0–15 PSIG (0–2 BAR) to 0–200 PSIG (0–14 BAR). It comes with a standard 2–15 lpm flowgauge calibrated for CO₂ (for lasers and cell growth chambers) or a custom thermal mass flowmeter-calibrated gauge for specific gases. While suitable for medical lab use, it is not intended for therapeutic use in humans.

Features:

  • Field-adjustable pressure limit for application flexibility

  • 316L stainless steel diaphragm prevents inboard diffusion

  • CAPSULE® seat design with 360° integral filtration in both stages

  • Helium leak-tested for integrity

Specifications:

  • Max inlet pressure: 3000 PSIG (210 BAR)

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

  • Gauges: 2" (50 mm) plated case

  • Seats: PCTFE (first stage), PTFE (second stage)

  • Filter: 10-micron sintered bronze

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

  • Diaphragm: 316L stainless steel; Cv: 0.1

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

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

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

COI TECH SLK Type D Safety Valve

COI TECH SLK Type D Safety Valve

Specifications

Sizes: Available in 1/2" x 1", 3/4" x 1", 1" x 1", 1/2" x 1.1/2", 3/4" x 1.1/2", and 1" x 1.1/2".
Connections: Female GAS x Female GAS
Materials: Nozzle made from 316L stainless steel; Bonnet available in either carbon or stainless steel; Disk options include PTFE or PEEK.
Joints & Seals:
Medium: Designed for gases
Set Pressure: Ranging from 0.5 to 380 Barg (for a 10mm Orifice) and 0.5 to 180 Barg (for a 14mm Orifice)
Temperature Range: -45 to +200 degrees Celsius Max
Design Notes: Approved under PED regulations.

Make your selection with confidence knowing our valves offer a reliable performance for various gaseous applications. Choose from a variety of sizes and materials to fit your specific needs. Our products are designed to provide high performance under stringent regulations, ensuring safety and reliability.
Hattersley Fig 100EXT PN25 Ball Valve - Extended Stem

Hattersley Fig 100EXT PN25 Ball Valve - Extended Stem

Features & Benefits

• Resistant to dezincification
• Lightweight, compact design for easy installation and operation
• Enhanced leak protection
• Greater durability during installation
• Available in sizes ranging from 1/2" to 2"
• WRAS approved for use with hot and cold water systems up to 85°C
• Compliant with BS EN 13547

Specifications

• UK End Connection: BS EN 10226-2:2005 (formerly BS21 Taper)
• US End Connection: ANSI B1.20.1:1983
• Operator Type: Lever
• Specification: DZR Brass (CW602N) Body Ball Valve, constructed in accordance with BS EN 13547, featuring a two-piece design, floating stainless steel SS304 ball, anti blow-out stem, PTFE seats, threaded ends, and PN25 rated
• Suitable for Group 2 Gas and Group 1 and Group 2 Liquids as defined by the Pressure Equipment Directive 2014/68/EU, as amended
• Not suitable for Group 1 Gases or unstable liquids.

Pressure/Temperature Ratings

• Operating temperature range: -10 to 100°C with a pressure rating of 25 Barg
• Operating temperature of 120°C with a pressure rating of 21.8 Barg

Flowstar UK Ltd

Flowstar (UK) Ltd

Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom

Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.