lmnc safety valve factory

-It is designed for the 12ax7 tube to be soldered straight to the board without a socket to save excessive height. in this module provided you don’t chuck it off a balcony the valve will be fine, in this design it is also running cold so you wont have any worries of it prematurely breaking. It will last just as long if not longer than other components in the module.

-The valve also doesn’t even have to be soldered to function, if your feeling fancy look closely at the module in the above images you will notice i didn’t solder the valve in, the PCB actually holds onto the valve enough to provide sufficient contact, nearly as much as a socket would anyway! I am not sure how this will change over time, but for not it works fine. However if you want reliable and worry free use i would recommend to just solder it on down and forget about it.

-Touching the valve? This is a bit of a myth in respects to the fact that yes in some high temperature high reliability applications valves don’t want to be touched as over time the grease may indeed weaken the glass. But for general use and general purpose valves like the 12ax7 its completely negligible. in-fact this tube in this application doesn’t even get as hot as a cup of PG tips. So dont worry about it.

-Status LED! try to get a super bright 3mm LED, it will really make the tube illuminate as the heater filament in this application does not glow much if at all. In theory! a Bi Coloured LED would work too! Dont poke the LED all the way through the hole, just enough so that it is flush with the pcb, this means you can seat the valve right down to the PCB.

Of all the challenges you face keeping your customers’ plants operating at full capacity, safety and relief valves shouldn’t be one of them. NASVI’s job is to give you the confidence that your valve supply chain is rock solid regardless the pressure it’s under.

With more than 1,050 employees and 130,000 safety valves produced per year, LESER is the largest manufacturer of safety valves in Europe and one of the leading companies in its industry worldwide.

LESER offers spring loaded and pilot operated safety valves for all industrial applications according to the Pressure Equipment Directive and ASME XIII. Major companies in the chemical, oil and gas, petrochemical, energy, technical gases, LNG/LPG, pharmaceutical, food and beverage, shipbuilding and heating and air conditioning industries use LESER safety valves.

LESER safety valves are developed for the international market in Hamburg and manufactured in the modern plant in Hohenwestedt/Germany. In addition, LESER produces safety valves to the same standards in India and China for the local markets. Nine subsidiaries and offices in Europe, America, the Middle East and Asia as well as authorized contacts in over 80 countries guarantee competent customer advice and fast, reliable deliveries.

The primary purpose of a safety valve is to protect life, property and the environment. Safety valves are designed to open and release excess pressure from vessels or equipment and then close again.

The function of safety valves differs depending on the load or main type of the valve. The main types of safety valves are spring-loaded, weight-loaded and controlled safety valves.

Regardless of the type or load, safety valves are set to a specific set pressure at which the medium is discharged in a controlled manner, thus preventing overpressure of the equipment. In dependence of several parameters such as the contained medium, the set pressure is individual for each safety application.

SVI Industrial offers both shop and field diagnostic and control valve repair services. By utilizing “Bench Mark” diagnostic equipment, we can input your control valve’s configuration information, run baseline tests, then provide detailed documentation that will show the valve’s performance. This information can be used to determine if your control valve needs minor instrumentation calibrations or possibly a major overhaul.

We can work independently or with your reliability engineers to establish a database of your safety relief devices throughout your plant. You can count on our experience and knowledge to establish a recommended frequency of safety valve testing and repairs of your safety valves, that meet your corporate requirements and requirements set by your state inspector and insurance auditor based on “best practices” from the National Board.

SVI Industrial holds three “VR” certificates from the National Board of Boiler and Pressure Inspectors authorizing our technicians to repair, set and certify safety pressure valves inline, on our customer’s site and at any of our shop locations for both ASME Section I and VIII code stamped safety valves. Our skilled valve technicians will evaluate the condition of your safety valve, make the proper recommendations and work diligently to get your safety valves tested, repaired and set to the correct specifications and back in-line as quickly as possible in order to minimize interruption of your daily operations.

We are a turnkey service provider with the capability to service, repair or replace your welded in-line steam safety valves, including pipe prep, welding, removal and heat treating. SVI Industrial is your one-stop source for all of your industrial safety valve repair and other maintenance needs.

because in this design they are running below recommended operating temperatures and voltages which means they are going to last longer, even though valves are incredibly robust when it comes to longevity compared to capacitors for instance. This means there is as much chance of the valve dieing as other components, so swapping it out doesn’t seem to justify a socket.

it simplifies the build process, because there are no sockets the valve wont stick out as much meaning it can go on the same pcb as potentiometers etc. This means less circuit boards and less faff

over time especially in a touring synth valve sockets on the front of modules get looser and looser. This causes a bit of a temperamental module where valves sometimes wriggle themselves to a loose connection.

also another thing I thought worth mentioning is handling valves with your fingers. In the application of the safety valve it doesnt really matter, even in most household applications of valves it doesn’t really matter handling these with your hands. purely because they aren’t on all the time and most importantly they don’t get hot enough. handling with your fingers is more an issue in valves in places like radio studios and power stations of old where operating temperatures were a lot closer to the crunch point in glass and over such a long amount of time that yes oils and such could pose a corroding issue.

In the safety valve because the 12ax7 is a pretty darn robust valve and the fact that the safety valve operates below recommended temperature of the 12ax7 its fine its the same as holding a glass with mulled wine in it