Safety Relief Valves Explained


Boiswood are now distributing in the UK for H+ Valves, a well-respected manufacturer of safety valves and sampling systems that meet strict demands of industrial process. We can offer a vast selection of process and instrumentation safety relief valves - from a standard "ex-stock" range or customised to your specification. 

We can propose a safety valve suitable for your application, sizes from 1/4" to 8", in Stainless or Carbon Steel, threaded or flanged - whatever your specific needs contact us today. 

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Pressure Let Down Panel

Boiswood were asked to design, source and assemble the above pressure let down panel. 

Both panels consisted of 3 pressure reducing regulators and 6 ball valves each. The regulators were mounted directly to the back panel and then connected with a ball valves on both the inlet and outlet side. 

This allowed the customer to pipe the panels as seen straight into their system and connect up to their bottle cylinders.  

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UK AD & Biogas and World Biogas Expo 2017


With the global biogas market estimated at £1trn and energy security, climate change and the UN Sustainable Development Goals driving the need to rapidly increase the uptake of biogas, UK AD & Biogas and World Biogas Expo 2017 is the place to come to find out why and how. Taking place on the 5-6 July at the NEC in Birmingham, it will be the show’s seventh consecutive year and will consolidate its position as the #1 global trade show for the biogas industry.

This year the show will benefit from its new partnership with the World Biogas Association (WBA) to showcase the global biogas industry at ADBA’s leading event, which last year was attended by participants from over 50 countries.

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GO Regulator Workshop

Assembly and Testing

At Boiswood we stock a wide variety of components to assemble Pressure Reducing and Back Pressure regulators. From the GO product range we can generally assemble the PR1, PR2, PR7, PR50, BP3, BP8 and BP60 models to your required specification from stock.

We would then pressure test the assembled regulators using our Nitrogen gas bottle to ensure they are functioning correctly. We can provide a copy of the pressure test certification on request.

With this considered, it means you could have your regulators assembled, tested and despatched on a next-day service, after the processing of your order.


Servicing and Repairs

In order to comply with the BCGA's recommendations of servicing/replacing regulators after a 5-year operation period, many users call on Boiswood to service their GO regulators.

Whether you require repairs for a faulty/broken regulator or just a general service - We will quickly turnaround a detailed corrective action report and recommendation for any spare parts. We can help to diagnose the causes as to why the regulator may have failed in service, always with the objective in mind of lowering your costs.

Again all regulators are assembled and pressure tested before they are returned to you.


Subassembly Design & Construction 

We will work closely with you to provide component subassembly and panel solutions suitable for your application.

Looking at the example to the left, we will take your required specification and produce a solution for you to sign off on. From there we can gather all of the necessary components and begin to create a suitable subassembly for your application.

Whatever your requirements contact us today for technical consultation.


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Level Sensing Technologies

1. Electro-Optic
The electro-optic type level sensors utilise their infrared LED light and receiver to detect. The LED is positioned and directed into a prism which forms the tip of the sensor. As soon as the media (liquid) touches the prism, it disrupts the light and senses the change. This change  can relay to an electronic switch (ie. actuating an alarm or circuit). 


2. Ultrasonic
The ultrasonic type level sensors have no moving parts and require absolutely no maintenance.  It offers an alternative to the generic reed switches and are ideal for applications where foam and condensation could affect the sensor. The ultrasonic pulses emitted reflect off liquid surfaces and the gap area therefore detects its presence or absence.  

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