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Process Safety

Question: Why should I use a REMBE® brand rupture disc?

Answer: REMBE® rupture discs provide tailor-made solutions that fit the specific application and provide true value within a short period of time. Poorly engineered , low-priced pressure/vacuum products actually cost you more in the long run than a specially designed REMBE® KUB®, for instance. REMBE®’s rupture discs, with their precision design and manufacturing, are the only rupture discs you should use when the integrity of your manufacturing process and the safety of your employees are at stake.

Question: Should I use a rupture disc or a pressure relief valve?

Answer: It really depends on the application, but in most cases, it is better to use both a rupture disc and a pressure relief valve as a combination device for maximum protection.

1.  A rupture disc protects the pressure relief valve from sticking and corrosion.
2.  A rupture disc reduces the costs of a valve and reduces the cost of valve maintenance.
3.  Should you experience an overpressure situation, the rupture disc bursts and protects the system.
4.  The pressure relief valve re-seats after relieving excess pressure.

Question: Using a combination of both rupture disc and pressure relief valve is much more expensive, isn’t it?

Answer: Not really. Don’t forget the immense costs of maintaining the pressure relief valve regularly, which results in labor costs and process downtime. By placing a REMBE® rupture disc in front of your pressure relief valve, your business is never down. The rupture disc protects the valve and it does not require maintenance. You can run your process 24/7 all year round. This is true savings!

Question: I have a tank that is very weak and is unable to withstand any pressure. I know I run the risk of overpressure. What can I do, short of replacing the tank?

Answer: REMBE® has the ELEVENT® product which provides reliable protection for limited-strength equipment against excessive pressure and vacuum. The ELEVENT® pressure/vacuum relief valve, often referred to as a breather valve, can protect your weak tank by relieving the overpressure and “breathes,” so the tank won’t implode in the event of vacuum conditions, which must also be considered.

The ELEVENT® can make life easier since it needs minimum maintenance, but is very reliable when it is required to function.



Combustible Dust Explosion Protection

Question: What actually happens when a dust explosion occurs?

Answer: A dust explosion is an exothermic combustion process of combustible material in air during which there is a very sudden, high increase in pressure.

Question: Which activators feed a dust explosion?

Answer: In the explosion triangle, you can find three explosion factors: oxygen in the air, combustible dust or material and an ignition source.

Question: Let’s assume a combustible dust explosion cannot be avoided. How can I protect my employees and my plant?

Answer: You protect both if you take care of eliminating the ignition sources. This measure is called explosion prevention. However, it is rarely a certainty that you can eliminate all ignition sources due to human and other factors. Constructive explosion protection should also be implemented. Appropriate venting and isolation reduce the negative impacts of an dust explosion to a safe level.

Question: What is constructive explosion protection?

Answer: You could theoretically construct your plant to be so high in enclosure strength that, even with a combustible dust explosion, your plant and equipment could withstand the explosion. This option is very costly and not typically feasible for an industrial facility.

You can also construct your plant to withstand a certain level of pressure surge. Should there be a combustible dust explosion, the vessel may show some deformation, but it would not rupture, and it would save lives and equipment. This is constructive explosion protection.

Question: Did REMBE® invent Flameless Venting?

Answer: Yes. In the 1980’s, REMBE® developed the Q-Rohr® – a quench pipe which releases explosion pressure from your equipment but retards burnt and un-burnt combustible dust. Consequently, the flame is trapped inside the Q-Rohr® and you can vent your apparatus wherever you want, either indoors or outdoors.

Question: Is it really safe to use a Q-Rohr®?

Answer: Definitely. The Q-Rohr® stops flames and combustible dust while relieving pressure. The system or vessel is protected without any risk to personnel, property or environment.

Just beware of copies. Not every device which looks like a Q-Rohr-3 has the same level of flameless venting performance. Consult your REMBE® experts for further information about our flameless venting systems and a recommendation for your plant.



Learn More…

Learn more about Dust Explosion Protection and find efficient, cost-saving protections for your manufacturing facility:

(BOSS) Booklet of Safety and Security.pdf