Reliance RWC 102 Series Pressure Relief Valve 1/2" M x 15mm 4 Bar - PREL102111
The PREL102111 Reliance Water Controls (RWC) 102 Series potable water pressure relief valve is designed to efficiently discharge water from the system at a specified pressure in the event of cold water over-pressurisation within an unvented cylinder. The Reliance Valves 102 Series Potable Water Pressure Relief Valves serve a crucial role in safeguarding an unvented system from the dangers of over-pressurisation. Each valve is pre-set and securely locked to a specific pressure; should the system exceed this threshold, the valve will lift off its seat, allowing water to discharge safely to waste. This essential safety device is the first line of defence in any unvented system. These pressure relief valves feature a robust single-piece cartridge and are available in various pressure settings, ranging from 3.5 to 8 bar, along with multiple connection sizes for versatile installation.
**Features and Benefits:**
- Quick and easy removal of the single-piece cartridge for hassle-free cleaning or replacement.
- Innovative diaphragm design enhances resistance to scale build-up.
- Provides reliable protection against over-pressurisation.
- Flexible installation options with multiple connection sizes.
- Adjustable relief pressure settings from 3.5 to 8 bar.
- Designed specifically for cold water applications only.
**Specifications:**
- Size: 1/2" x 15mm
- Connections: BSP Male Inlet x Compression Outlet
- Materials: Hot pressed DZR Brass
- Medium: Cold Water
- Set Pressure: 4 Barg
- Temperature: Up to +140°C
- Product Code: PREL102111
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CONCOA 332 Series Regulator
The CONCOA 332 Series is a five-port, stainless steel, dual-stage cylinder regulator designed for primary pressure control of high-purity inert gases (up to grade 5.5), including mildly reactive gases—but not toxic or highly corrosive gases. Its two-stage design minimizes pressure fluctuations from cylinder depletion, providing stable delivery pressure for critical applications. Factory-configurable options make it ideal for university labs, research facilities, and pharmaceutical manufacturing.
Features:
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); optional 4500 PSIG (310 BAR)
Body: 316L stainless steel barstock; Bonnet: Chrome-plated die-cast zinc
Gauges: 2" (50 mm) stainless steel plated case
Seats: PCTFE (first stage), PTFE (second stage)
Filter: Patented 10-micron 316 stainless steel mesh
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, ANSI/ASME B40.1, PED 2014/68/EU, CRN OH5216
Niezgodka Type 10.2 Safety Valve - Stainless - Lever
Product Specifications
Size Options: 3/8", 1/2", 3/4", 1"
Connections: Screwed BSPP or NPT
Materials:
- Nozzle: Stainless Steel
- Spring Bonnet: Stainless Steel
- Disk: Metal
- Joints & Seals: NBR, FPM, EPDM (varies by model)
Head Type: A (Gas-tight Lever)
Medium Compatibility: Steam, Gases, and Liquids
Set Pressure Range: 0.05 to 500 Barg (dependent on size)
Temperature Range: -60 to 280 °C
Additional Information: We offer various other variants (please refer to downloads) featuring alternative (a) O-ring and disk materials, (b) NPT connections, (c) orifice sizes, and (d) head types. For further details, kindly get in touch with us.
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.