Reliance RWC 107 Series Pressure Relief Valve 1/2" M x 15mm 3.5 Bar - PREL107020
**PREL107020 Potable Water Pressure Relief Valve**
The PREL107020 Potable Water Pressure Relief Valve is specifically engineered to safeguard unvented cylinders from cold water over-pressurisation. Part of the Reliance Valves 107 Series, this pressure relief valve effectively discharges water from the system when a designated pressure threshold is exceeded, ensuring optimal safety and performance. The valves come pre-set and securely locked to a specific pressure; should the system experience over-pressurisation, the valve will lift from its seat, allowing excess water to flow to waste. This valve acts as the primary safety device within any unvented system.
Available in pressure settings ranging from 3.5 to 6 bar, the PREL107020 also features various connection sizes, providing flexibility for installation.
**Features and Benefits:**
- **Diaphragm Design:** Enhanced resistance to scale build-up.
- **Over-Pressurisation Protection:** Ensures your system operates safely, preventing potential damage.
- **Multiple Connection Options:** Allows for versatile installation to suit different setups.
- **Set Relief Pressure Range:** 3.5 - 6.0 bar, accommodating various system requirements.
- **Cold Water Use Only:** Specifically designed for cold water systems, ensuring efficiency and safety.
**Specifications:**
- **Size:** 1/2" x 15mm
- **Connections:** BSP Male Inlet x Compression Outlet
- **Materials:** Hot Pressed DZR Brass
- **Medium:** Water
- **Set Pressure:** 3.5 Barg
- **Temperature Rating:** Up to +110°C
- **Product Code:** PREL107020
- **Notes:** WRAS approved
Enhance the reliability and safety of your unvented water systems with the PREL107020 Potable Water Pressure Relief Valve – the essential component for effective pressure management.
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Niezgodka Type 30.2 Safety Valve - Stainless - Lever
### Product Specification
- **Size Options**: 1/2", 3/4", 1", 1.1/4", 1.1/2", 2", 2.1/2", 3", 4"
- **Connections**: Available in Flanged DIN or ANSI
- **Head Type**: A (Gas Tight Lever)
- **Materials**: Crafted from Stainless Steel (30.2 & 30.7)
- **Disk Variants**: Choose from Metal, Viton, or Nylon, depending on the pressure requirements
- **Joints & Seals**: Options include NBR, FPM, and EPDM based on the specific model
- **Medium Compatibility**: Designed for Steam, Gases, and Liquids
- **Set Pressure Range**: 0.05 to 40 Barg (utilising multiple springs)
- **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
**Notes**: The temperature range is relevant for valves featuring a Metal disk. For models 30.1 and 30.2, the temperature range will vary depending on the size of the body.
This high-performance valve is essential for optimal control in various industrial applications. Whether handling steam, gases, or liquids, our valves are designed to provide reliability and efficiency under pressure. Explore our range today to find the perfect fit for your needs.
Hattersley Fig 2900 2910 Thermometer - 000TH2900JW
• Our thermometer is designed to accommodate all sizes.
Product Code: 000TH2900JW
Reliance RWC 4000 Litre Aquasystem Potable Expansion Vessel Pre Set 4 Bar - XVES050210
**Stainless Steel Expansion Vessel for Potable Water Applications**
Introducing the Reliance Valves Aquasystem Replaceable Membrane Potable Water Expansion Vessels, expertly designed to manage the additional load within your water system as water heats and expands. These high-quality stainless steel expansion vessels play a crucial role in maintaining safe operating levels by preventing pressure build-up in both sealed heating systems and cold water systems.
Featuring a replaceable membrane, our vessels effectively prevent corrosion and contamination, ensuring the water remains safe for human consumption. This innovative design allows for quick and easy servicing in situ, eliminating the need to remove the vessel entirely.
**Key Features and Benefits:**
- **Corrosion-Resistant Design:** The stainless steel bolted flange helps to prevent corrosion.
- **Enhanced Flow:** Extra wide membrane opening substantially reduces noise caused by restricted flow.
- **Internal Protection:** The internal membrane prevents any contact between water and the steel shell, effectively stopping internal corrosion.
- **Extensive Range:** Available in capacities from 2 to 5000 litres, catering to a variety of applications.
- **Serviceable Design:** All models come equipped with a replaceable membrane for straightforward servicing without removal.
- **User-Friendly:** Pre-charge valve for easy topping up of air pressure.
- **Versatile Compatibility:** Suitable for hot and cold water systems only.
**Specifications:**
- **Capacity:** 4000 Litre
- **Colour:** Red
- **Pre-Set Pressure (Bar):** 4
- **Max Pressure (Bar):** 10.0
- **Minimum Temperature:** -10°C
- **Maximum Temperature:** 99°C
- **Height:** 3200mm
- **Diameter:** 1450mm
- **Water Connection:** DN80
**Product Code:** XVES050210
**Materials:**
- **Shell:** Epoxy Coated
- **Membrane:** EPDM
- **Bolted Flange:** Stainless Steel
**Standards and Approvals:**
- WRAS approved for models up to 1000 litres
- CE marked in accordance with Directive PED 97/23/CE
- TÜV Certified
- Materials for 1000 - 5000 litre models comply with BS 6920
Choose the Reliance Valves Aquasystem Potable Water Expansion Vessel for a reliable and efficient solution to your water system needs!
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.