Hattersley Fig 425 Pressure Gauge - 004VBR0425J

**Product Specification** **Size Options:** 1/2", 3/4", 1", 1¼", 1½", 2", 2½", 3", 4" **Connections:** Flanged DIN or ANSI **Head Type:** C (Gas Tight Cap) **Materials Used:** Stainless Steel (30.2 & 30.7) **Disk Options:** Metal, Viton or Nylon (varies depending on pressure) **Joints & Seals:** NBR, FPM, EPDM (varies with model) **Medium Compatibility:** Suitable for Steam, Gases, and Liquids **Set Pressure Range:** 0.05 to 40 Barg (using various spring sizes) **Temperature Specifications:** - Model 30.1: -10 to +280 °C - Model 30.2: -60 to +280 °C - Model 30.7: -200 to +280 °C **Design Certification:** TUV Approved **Important Notes:** The temperature range applies specifically to valves featuring a metal disk. Please be aware that for Models 30.1 and 30.2, the temperature range varies depending on the body size. This robust range of valves is designed for high-performance applications, providing reliability in the management of steam, gases, and liquids across various industries. Ensure optimal function and longevity by selecting the appropriate materials and configurations for your specific requirements.

The CONCOA 302 Series is a four-port, chrome-plated brass, single-stage cylinder regulator designed for primary pressure control of high-purity, non-corrosive, or liquefied gases. Single-stage regulation is recommended for cylinders under 500 PSIG (34 BAR) or applications where minor outlet pressure fluctuations from cylinder depletion are acceptable, or where inlet pressure is stable.

Features:

• 316L stainless steel diaphragm prevents inboard diffusion

• CAPSULE® seat with 360° integral filtration

• Field-adjustable pressure limit for flexible applications

• Rear panel mounting simplifies installation

• Helium leak-tested for integrity

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR); optional 3500 PSIG (240 BAR) or 4500 PSIG (310 BAR)

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

• Gauges: 2" (50 mm) plated case

• Seats: PTFE; PCTFE for higher-pressure options

• Filter: 10-micron sintered bronze

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

• Cv: 0.1; Diaphragm: 316L stainless steel

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

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

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

**Stainless Steel Expansion Vessel for Heating Applications** Introducing the Reliance Valves Aquasystem Heating Expansion Vessels, engineered for optimal performance in heating systems. Available in capacities ranging from 2 litres to 5000 litres, these expansion vessels are designed to handle maximum pressures between 8.0 to 10.0 bar. With their innovative replaceable membranes, the Aquasystem range facilitates in-situ servicing, effectively preventing water contact with the stainless steel vessel shell and minimising the risk of internal corrosion to extend the product's lifespan. **Features and Benefits:** - **Corrosion-Resistant Design:** The stainless steel bolted flange ensures exceptional durability and resistance to corrosion. - **Noise Reduction:** An extra-wide membrane opening allows for unrestricted flow, minimising noise caused by pressure changes. - **Internal Protection:** The internal membrane design prevents any contact between water and the steel shell, significantly reducing the risk of internal corrosion. - **Diverse Capacity Options:** Ranging from 2 to 5000 litres, our vessels are suitable for a wide array of heating applications. - **Simple Maintenance:** Each vessel is supplied with a replaceable membrane, enabling easy servicing without removal. - **Convenient Pre-Charge Valve:** Easily top up air pressure as needed with the integrated pre-charge valve. - **Specific Application Use:** Designed exclusively for heating applications. **Specifications:** - **Capacity:** 750 Litres - **Colour:** Red - **Pre-Set Pressure (Bar):** 4 - **Max Pressure:** Up to 500 Litres - 8.0 bar / 750 Litres and above - 10.0 bar - **Minimum Temperature:** -10°C - **Maximum Temperature:** 99°C - **Height:** 1820mm - **Diameter:** 800mm - **Water Connection:** 2" MBSP **Materials:** - **Shell:** Epoxy Coated - **Membrane:** EPDM - **Bolted Flange:** Galvanised Steel **Standards and Approvals:** - CE marked in accordance with Directive PED 97/23/CE - TUV Certified Explore the reliability and longevity of the Reliance Valves Aquasystem Heating Expansion Vessels for your heating applications and ensure optimal system performance.