Technical guidance on safety relief valves, ignitors and valve parts from the people who sell and source them. If you have a question that isn’t answered here, send us the part number and ask.
Why Is My Kunkle Valve Leaking? The Two Most Common Causes
Nine times in ten it’s one of two things — the valve isn’t mounted vertically, or operating pressure is too close to set pressure.
How Often Should Safety Relief Valves Be Recertified?
ASME and the National Board don’t set the interval — your jurisdiction and your insurance inspector do. Practical guidance for boiler, steam and process valves.
Safety Relief Valve vs. Regulator: Which Do You Actually Need?
One protects against emergency overpressure, the other controls pressure continuously. Using a relief valve to regulate will wear it out fast.
Vacuum Relief vs. Pressure Relief: They Are Not the Same Valve
A safety valve protects against too much pressure. It does nothing when a vessel goes into vacuum — and most tanks collapse long before they burst.
Sentinel Valve vs. Safety Valve: One Warns, One Protects
A sentinel valve whistles when pressure rises — it does not relieve it. The giveaway is that its datasheet publishes no relieving capacity at all.