Reliance RWC 104 Series Pressure Relief Valve 1" x 1.1/4" F x F 8 Bar - PREL104017
The PREL104017 High Capacity Potable Water Pressure Relief Valve is designed to safely discharge water from the system when cold water over-pressurisation occurs in an unvented cylinder. This high-flow valve suits larger capacity systems, protecting them from the risks associated with excessive pressure. The Reliance Valves 104 Series High Capacity Potable Water Pressure Relief Valve features a pre-set and locked pressure setting; if the system exceeds this limit, the valve will lift from its seat, allowing water to discharge safely into the waste system. The outlet connection is one size larger than the inlet, ensuring that the valve can manage a high-capacity discharge effectively. This valve acts as the primary safety device in an unvented system. Various pressure settings are available, ranging from 3.5 to 8 bar, along with multiple connection sizes to facilitate flexible installation.
**Features and Benefits:**
- High-flow design ideal for larger capacity systems
- Quick removal of the single-piece cartridge for easy cleaning or replacement
- Diaphragm design enhances resistance to scale build-up
- Provides essential protection against over-pressurisation
- Diverse connection options allow for versatile installation
- Relief pressure range adjustable from 3.5 to 8.0 bar
- Designed exclusively for cold water applications
Specifications:
- Size: 1" x 1.1/4"
- Connections: BSP Female Inlet x BSP Female Outlet
- Materials: Hot pressed DZR Brass
- Medium: Cold water
- Set Pressure: 8 Barg
- Temperature: +140 °C
- Product Code: PREL104017
Other Products and Services from Flowstar (UK) Ltd
Refrigeration Safety Valve
Refrigeration Safety Valve: Essential Protection for Industrial Systems
A refrigeration safety valve is a vital safety feature within industrial refrigeration systems, engineered to prevent overpressure in pressure vessels, pipelines, and various system components. These valves play a crucial role in safeguarding the system from catastrophic failures by venting excess refrigerant whenever the pressure surpasses a predetermined limit.
Our refrigeration safety valves are available with the same dimensions and technical specifications as PARKER Herl Refrigeration Safety Valves, ensuring reliable performance and compatibility.
Specifications
- Sizes: 3/8" to 2.1/2"
- Connections: Flanged or Screwed
- Materials: Steel or Stainless Steel
- Medium: Glycol-based cold brine refrigerant EN 378 p. 1, including NH3, R134a, R290 (propane), R507, and blends with refrigerator oil, as well as neutral gas and liquid media
- Set Pressure: 4 to 63 Barg (dependent on size)
- Temperature Range: -60 to +180 °C Max
Design Notes: Custom designs to alleviate back pressure can also be provided.
Investing in our refrigeration safety valves will enhance the safety and reliability of your industrial refrigeration systems, ultimately ensuring operational efficiency and compliance with relevant safety standards.
Self Closing Lever Globe Valve / Flushing Valve
A marine self-closing lever valve is a manually operated valve featuring a spring-loaded lever mechanism that automatically returns to the closed position once the operator releases the lever. These valves are essential in scenarios where a brief, controlled release or sampling of fluids is required — particularly in marine settings to ensure safety and protect the environment.
Purpose of a Self-Closing Lever Valve
- Enables controlled manual release or draining of liquids.
- Safeguards against accidental or unattended open positions.
- Commonly utilised in:
- Fuel and oil drain lines
- Tank sampling points
- Bilge or sludge drains
- Lube oil system drains
We supply self-closing lever globe valves and flushing valves from several leading manufacturers. Please get in touch with us for your specific requirements.
Hattersley Fig 775 PN10 Automatic Air Vent
The Hattersley Fig 775 PN10 Automatic Air Vent safely removes trapped air from single or multi-boiler and calorifier systems, simplifying venting and saving time and costs. WRAS approved for closed circuits, with an optional ½" shut-off valve (specify when ordering Fig. 776).
Features & Benefits: Removes trapped air, simplifies venting, saves time/costs, WRAS approved, optional shut-off valve, meets BS EN 1074-4.
Specification: Brass body & cover, polypropylene float, EPDM seals, BSP parallel thread, optional ½" shut-off valve.
Pressure/Temperature Rating: 10 bar at 120°C.
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.