Unival

1/2 3/4 PRV Safety Pressure Reducing Valve 1,5-10 Bar

(8 reviews) Write a Review
SKU:
167
UPC:
0616932559396
Availability:
UK Stock - Immediate Dispatch
Shipping:
£3.99 (or free for orders over £50)
£9.99
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Description

Safety pressure redcuing valves are designed to protect systems against exceeding the allowable pressure value. The opening pressure of the reducing valve is set at the factory and can not be changed. Safety reducing valves can be used in pressurized water and central heating installations. 

Specifications:
- Material: high quality brass;
- ​Size: 1/2" or 3/4" BSP;
- Thread type: Male or Female;
- Working temperature range: -20C to +120C;
- Max. working pressure: 1,5bar, 1,8bar, 2,5bar, 3bar, 4bar, 4,5bar, 6bar, 8bar or 10bar.

A safety valve or safety relief valve is a device that protects the pressure vessel or installation (e.g. a pipe or a boiler) against bursting due to excessively high pressure in the installation. It can be used in all kinds of appliances, including boilers and water heaters. As it is known, a liquid or gas flows in the pipe (the so-called “medium”) and the safety relief valve is designed to control and decrease the pressure. It assures the safe flow of the medium to the designated target.
How does such a valve work? Well, the importance of the setting is essential at this point. Some devices have one factory setting, but there are also some available ones where you settings can adjust settings.. The point is that the suitable pressure is set to prevent installation from bursting or even explosion. The purpose of installing a pressure relief valve is to protect the installation from explosion and allow gas to be drained from the system or compressor when the pressure rises above the allowable standards.
Why does it happen at all? There might be different reasons and one of them is a failure of one of the components. When gas is released into the atmosphere through the safety valve, the pressure is . decreased. The mechanism of action is as follows:
The spring which is an integral part of the pressure relief valve expands and the valve closes. When the pressure rises above a certain level, the spring is compressed and the valve is opened. Once the valve is opened, the water or steam is able to pass through. When the pressure drops below a fixed level, the spring expands again, closing the valve. The mechanism of operation of the valve is therefore quite simple. Nevertheless, each valve element must be made of the highest quality materials, so that we can be sure that this element will work at the right time and at the right level.
Taking into account the purpose and functionality of the valves, they can be either called pressure relief valves, pressure realese valves or if it is desinged for a specific installation, for instance; boiler pressure relief valves.
It is worth bearing in mind that the variety of valves is huge. They are distinguished not only by the material of manufacture, but also by construction features, intended installation place, resistance to high pressure and many other parameters.
PRV valves are relatively small elements. They are mainly made of various metal alloys. Brass valves are highly valued, because of their wide application. Components made of this material are resistant to high temperatures, and what is more, they are corrsion resistant. Steel safety valves are a bit worse and have limited use. However, in the case of compressed air, their use is usually possible.
Why is a safety valve necessary? In the light what was written above, PRVs are needed to reduce the pressure in the installations or compressors. Nevertheless, why is it so important to lower pressure in devices? Well, its growth can have serious consequences, such as: compressor failure, engine damage, damage of installation components, explosion as well as a real health and life threat for householders and all people nearby.

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Warranty Information

All products supplied are covered by the terms and conditions of the Manufacturer's Warranty for a period of 12 months.

However, some manufactures have a lifetime guarantee. In this case please contact us. This guarantee specifically excludes faults caused by accident, neglect, and misuse. In addition routine maintenance (cleaning of dirty audio/video heads etc.), consumables (styli, plug fuses, cables, batteries, etc.), cosmetic damage and tuning of channels are not covered.

The seller will be wholly responsible for the cost of return delivery and safe return of the goods. We will provide pre-paid label to return goods to us for orders which have been purchased in Europe or will expect goods to be shipped back to us by buyer by using the cheapest possible courier services and we will reimburse the shipping cost to the customer when goods received if goods to be returned from outside Europe. Proof of postage is not proof of delivery and you are therefore strongly advised to send your package by recorded delivery, registered post or courier, and to maintain sufficient insurance to cover the value of the goods.

Regardless of the warranty, you have right to cancel your order within 30 days without giving any reason. The cancellation period will expire after 30 days from the day when order has been delivered. To gain the right to cancel, you must inform us about your decision to cancel the order by a clear statement. To meet the cancellation deadline, it is sufficient for you to contact us about your decision before the cancellation period has expired.

Effects of cancellation: If you cancel the order, we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least ex-pensive type of standard delivery offered by us). We may make a deduction from the reimbursement for loss in value of any goods supplied, if the loss is the result of unnecessary handling by you.
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Additional Information

sizechart:
BSP
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8 Reviews

  • 4

    Customer review

    Posted by www.TrustedShops.com on 4th Jun 2018

    Previous one lasted for only a year

  • 5

    Customer review

    Posted by www.TrustedShops.com on 15th Nov 2017

    Bought as a replacement for an old and broken one. Modern version is much smaller and smarter.

  • 5

    Customer review

    Posted by www.TrustedShops.com on 28th May 2017

    As described good quality

  • 4

    Customer review

    Posted by Ezekiah on 14th Mar 2017

    This was a product not for sale in the US ,couldn't buy ,is a perfect replacement for my wine press ,4 bar is what I needed .Shipping was fast and safe .thank you very much…

  • 4

    Customer review

    Posted by John on 7th Dec 2015

    came as expected

  • 4

    Customer review

    Posted by Johny on 20th Nov 2015

    Very good.Thankyou!

  • 4

    Customer review

    Posted by Michael on 2nd Aug 2015

    Item as described Thank you so much

  • 4

    Customer review

    Posted by Mark P. on 18th Apr 2015

    i have bought before as i am with this what makes it even better was the quality of service i received and the time taken for delivery from a product coming in from overseas. Next purchase will be with you guys for sure.

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