Reliance RWC 107 Series Pressure Relief Valve 1/2" x 1/2" M x F 6 Bar - PREL107015

The CONCOA 312 Series is a five-port, chrome-plated brass barstock, dual-stage cylinder regulator designed for high-purity inert gas applications. It provides primary pressure control for non-corrosive, high-purity (up to grade 5.5) or liquefied gases. Its two-stage design reduces pressure fluctuations caused by supply cylinder depletion, making it ideal for applications requiring stable delivery pressure. Configurable at the factory, it can serve as a single-station manifold with options such as purge, low-pressure alarm, or multiple inlets.

Features:

• 316L stainless steel diaphragm prevents inboard diffusion

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

• Verified helium leak integrity via spectrometric testing

Specifications:

• Max inlet pressure: 3000 PSIG (210 BAR); options: 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: PCTFE (first stage), PTFE (second stage)

• 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 rate: 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

The FSSCDF Forward Acting Rupture Discs feature precision micro-scored sections that open in controlled petals, using four, six, or more radial score lines to ensure a clean, reliable opening while minimising the risk of petal separation. This design makes them particularly well suited for high burst pressure applications and for systems operating under cycling or pulsating conditions with gases or liquids, without compromising safety margins.

These discs respond to overpressure within milliseconds, opening fully without fragmentation, and are ideal for protecting safety relief valves. They support an operating-to-burst pressure ratio of up to 85%, offer excellent corrosion resistance, and can be further enhanced with an optional PTFE lining. In many applications, the discs can also withstand full vacuum conditions without additional supports, providing flexible installation options.

Key Specifications:

• Sizes: 1" (DN25) to 36" (DN900)

• Materials: Stainless steel, Alloy 201, 400, 600, 625, C276, Titanium

• Burst Pressure Range: 2–413 bar g (30–6000 psi g), depending on size and material

• Krl: 1.33

• Tolerance: ±5% to ±20%

• Operating Margin: Up to 85%

• Temperature Range: –196°C to 600°C

• Fragmentation: None – clean, petal opening

• Use Under Valve: Yes

• Corrosion Resistance: Very good

• Linings: Optional

• Holders: FSHI/A, FSHI/P, FSHI/F, FSHTC

• Rupture Detection: Electrical, Magnetic, Inductive, Optical

• Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD

Introducing the Resideo FV300 Float Controlled Filling Valve, an essential solution for water supply systems in both industrial and commercial applications. This valve is designed for efficient filling of reservoirs, tanks, and cisterns. Its operation is managed through a float valve linked to the main storage medium via impulse link pipework. To prevent continuous filling, the valve features a pilot valve that can be finely adjusted, allowing for varying differential fill levels that control the valve’s opening and closing mechanism.

**Certifications**

• DVGW
• WRAS (up to 23 °C)

**Key Features**

• High flow capacity
• Durable powder-coated finish, both inside and out, using safe and non-toxic materials
• Integrated control circuit and ball valves
• Built-in fine filter
• No external energy source required for operation
• Compact and lightweight design

**Available Part Numbers:**

FV300-50A, FV300-65A, FV300-80A, FV300-100A, FV300-150A, FV300-200A

For reliable filling solutions, choose the Resideo FV300 Filling Valve for your water management needs.