Mares XR Over Pressure Relief Valve
Mares XR Over Pressure Relief Valve
SKU:416404
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The Mares XR Over Pressure Relief Valve fits into one of the low pressure ports of your first stage and acts as a fail safe against free flows caused by excessive intermediate pressure and intermediate pressure creep that can occur in a malfunctioning first stage or a first stage that requires a service.
Rather than the excess pressure being forced out of a second stage which could cause a free flow, the over pressure relief valve will be forced open at 13bar (+/- 0.5 bar).
Features
- Standard LP port thread, 3/8 UNF
- Set to 13bar, nominally, with +/-0.5bar tolerance
- Chrome plated brass
- Standard regulator spring
Delivery Information
We offer free tracked UK standard delivery on orders over £50. We are also offering extended returns until Jan the 31st just in case that Xmas present isn't quite right :)
Standard UK delivery and Next Business Day UK delivery rates are calculated at checkout and offers a number of courier options for maximum convenience to you.
International shipping rates depend on items, shipment weight and destination. Shipping costs are calculated at checkout.
Estimated delivery times are shown during checkout and reflect your chosen delivery method.
Returns Information
If you change your mind, it doesn’t fit, or you become inflicted with buyer’s regret - that's OK!
Mike's Dive Store offer an extended returns policy of 30 days - so you can be rest assured if the suit, piece of diving equipment or gift doesn't suit then just send it back, and we will either exchange it or offer a full refund less any postage costs. Too easy!
Please note that there are some special order items on our website that will be subject to a 20% re-stocking fee, but we will let you know about these items before we 'special order' them so that you are aware of this. If this is the case we can always help with correct sizing so that we minimise the risk of return.

Stock that shows as 'In Stock' in either location can be shipped for a next day service. If the item is only showing as available 'In Suppliers Warehouse' will only be able to be shipped on a 2-3 days service.
If you would like to collect your items from our Chiswick Store and save yourself the postage costs please simply choose 'Pick up location' at checkout