Altecnic Pressure Relief Valve - 1/2" - 6 Bar
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eBayAltecnic Caleffi 311460 Pressure Relief Safety Valve 1/2"" 6 Bar - Brand New
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Altecnic 1/2"" Female Pressure Relief Valve 6 Bar Model 311460 Boiler NEWFree delivery in 1–3 days£15.99Visit shop →
Safety Valve for Central Heating 1/2"" Female Thread 6 bar 311460£13.20 delivery£27.35Visit shop →
Product Information
Full details
The Altecnic Pressure Relief Valve (1/2" - 6 Bar) is designed for homeowners and plumbing professionals needing reliable overpressure protection for domestic hot water and heating systems. Its key benefit is safeguarding essential components like boilers and hot water cylinders from damage caused by excessive pressure, ensuring system longevity and safety. A minor consideration is its specific 6 bar pre-set relief point, which may not suit all specialized system requirements. This WRAS-approved valve automatically discharges excess pressure at 6 bar, preventing dangerous build-ups and maintaining system integrity.
All features
| Model Part Number | 311460 |
|---|---|
| Brand | Altecnic |
Extended Product Information
FAQs
What does WRAS approval mean?
WRAS (Water Regulations Advisory Scheme) approval means the product has been assessed and complies with the Water Supply (Water Fittings) Regulations 1999 in England and Wales, and the Water Byelaws 2014 in Scotland. It ensures the valve is safe for use with drinking water.
What happens when the valve discharges?
When system pressure reaches 6 bar, the valve automatically opens, releasing water from the system to the atmosphere via its connected discharge pipe. This reduces the system pressure back to a safe level.
How do I know if my system needs a pressure relief valve?
Most unvented hot water systems and many domestic heating systems require a pressure relief valve as a safety measure. If you are unsure, consult your system's installation manual or a qualified heating engineer.
Can I adjust the 6 bar pressure setting?
No, this specific model has a pre-set 6 bar relief pressure and is not adjustable. For different pressure requirements, a valve with an alternative set pressure would be needed.
What is the lifespan of this valve?
The lifespan depends on water quality and system operating conditions. However, as a safety device, it's recommended to have it inspected periodically and replaced if any signs of malfunction or wear are observed, typically every 5-10 years as a preventative measure.
Do I need a special tool to install it?
Standard plumbing tools such as a pipe wrench or adjustable spanner are generally sufficient for installation. Ensure a good seal is made using appropriate PTFE tape or sealant on the male thread.
Troubleshooting
Valve is constantly dripping or discharging water.
This indicates the system pressure is at or above 6 bar. Check for a malfunctioning pressure-reducing valve, a faulty expansion vessel, or excessive thermal expansion. Address the underlying pressure issue. If the valve seat is damaged, the valve may need replacement.
Valve does not discharge water when pressure is high.
This is a critical safety failure. The valve may be seized or blocked. The system pressure may not have reached the 6 bar threshold. If pressure is confirmed to be above 6 bar and no discharge occurs, the valve requires immediate replacement by a qualified professional.
Corrosion or mineral build-up on the valve.
This can impede function. If minor, attempt to clear debris via manual testing (if applicable). If severe, the valve should be replaced.
Pros and Cons
Pros
- Provides essential overpressure protection for domestic systems.
- Prevents damage to boilers and hot water cylinders.
- WRAS approval ensures compliance with UK water regulations.
- Simple to install with a standard 1/2" BSP connection.
- Enhances safety by preventing dangerous pressure build-ups.
Cons
- Fixed 6 bar relief pressure may not be suitable for all systems.
- Discharges water to the atmosphere, requiring appropriate drainage.
- Requires manual reset or replacement if the valve seat is damaged.
- Not designed for industrial or high-pressure commercial applications.
Setup, Compatibility & Care
Setup:
- Isolation: Ensure the system's water supply is isolated and drained down to a safe level before installation.
- Connection: The valve features a 1/2" BSP male thread. Screw this directly into a suitable threaded port on the hot water or heating system, typically near the boiler or hot water cylinder.
- Orientation: Install the valve in an upright position to ensure proper function.
- Discharge Pipe: Connect a suitable discharge pipe to the valve's outlet. This pipe must direct any released water to a safe location (e.g., a tundish and drain) where it will not cause damage or injury.
- System Refill: Once installed, refill the system and check for leaks.
Compatibility:
- Connection Size: Compatible with any system requiring a 1/2" BSP female thread for a relief valve.
- Pressure Setting: Suitable for systems where a 6 bar overpressure cut-off is appropriate. This is common for many domestic heating and hot water systems.
- Fluid Type: Designed for use with potable water and standard heating system water.
Care:
- Regular Checks: Periodically check that the discharge pipe is clear and not blocked.
- Manual Test (Optional): If possible and safe to do so, briefly lift the manual test lever (if present) to ensure the valve is not seized. This should only be done if you are familiar with system pressure and drainage. The valve may discharge water when tested.
- Inspection: Visually inspect the valve for any signs of corrosion or damage.
- Replacement: If the valve is found to be leaking, corroded, or damaged, it should be replaced immediately by a qualified professional.