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NFPA-69
YOUR FIRE SAFETY STANDARD
CLICK &
DRAG HERE
Fire safety at the core
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Minimum 6-vane, completely steel rotor
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Ignition point removed entirely with outboard bearings
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Close cold clearance configuration to quench any possible ignitions*
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Rotary Airlock manufactured valves meet or exceed NFPA standards, carrying a 20+ PSI rating (14+ PMAX required for NFPA)
*Depending on the materials of construction & operating temperature
*Stainless steel & high temperature rotary valves generally require clearances greater than 0.0079 in.
HOVER HERE!
Rotary Airlock has engineered and developed NFPA compliant valves that can meet or exceed suggested safety standards across all makes and models.
Rotary Airlock's NFPA Valves contain a minimum of 6 completely steel vanes instead of the non-compliant rubber-tipped vanes of some valves (primarily dust collectors). These completely steel vanes carry cold clearances no more than .0079in from the housing*. This NFPA compliant clearance suffocates a fire, quenching its oxygen supply and helping contain the flames, ultimately aiding to extinguish it.
Completely Steel Rotor
With a minimum of 6 vanes, these all-steel rotors are built to withstand the extreme heat and pressure generated by an explosion with ease.
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Ignition Point Removed
With Rotary Airlock's Outboard Bearing System, the endcap configuration has removed the ignition point from the equation entirely.
You can rest easy knowing your valves won't become a fire hazard.
Clearances
Then cold clearances under .0079in these rotors help suffocate fires too, keeping them from spreading and aiding in extinguishing flames sooner.
PREMIER SAFETY OPTIONS
THE ULTIMATE SAFETY VALVE. . .
Those upgrades are just the base for every NFPA compliant valve Rotary Airlock manufactures. We have gone even further to offer Direct Drives for ANY make & model as well.
This Plug-N-Play set-up is the industry safety standard that minimizes access to moving parts and alleviates additional parts & inventory requirements. It also requires less maintenance time & labor, thus saving your budget and ultimately increasing profits all while eliminating hazard points for you and your team.
YOUR DEFENSE
AGAINST PLANT
FIRES & DEFLAGS
Starting with Rotary Airlocks premium construction standards, (American Sourced, carbon steel, hand-welded, full steel rotors & housing, with close clearance configurations, and maintenance geared outboard systems), makes Rotary Airlocks NFPA compliant valves what the rest of the industry strive to be.
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SAFETY FIRST
With so many valves (especially dust collectors) fabricated from foreign gauged rolled steel and containing rubber-tipped vanes (wiper blades), the safety of your plant and people needs to start right at the construction standards of your equipment. Here is a look at Rotary Airlocks NFPA compliant dust collector construction materials and thickness.
Outboard CLF Bearing System
3/4" Carbon Steel Housing
5/8" Carbon Steel Endcaps
Completely Steel Vanes
Close Cold Clearances (.0079 or less)
Why It Matters—Especially in Dust Collection Systems
With the dust collection system doing, well, precisely what it's supposed to,
collecting dust, it becomes the perfect fuel for a plant fire or explosion. It's a system
of highly flammable, well-ventilated material that has an express lane across a plant.
Dust Collector valves within that system could play a significant role in containing a
fire before it travels further down the line.
Most Dust Collectors are non-compliant because they have rubber-tipped vanes that
can't withstand heat from a fire or contain an explosion. Let's not forget the housing.
Most Dust Collector housings have thin sheet steel that is bent into shape. These
valves can't stand up against the pressure from an explosion, allowing a fire to
expand and grow.
Most Dust Collectors have non-compliant inboard bearings. When a seal fails, it allows
product to reach the bearing, leading to catastrophic bearing failure. Bearing failure
can result in metal-to-metal contact, causing sparks. This turns a dust collector into
a flint and tinderbox, sparking a fire with no obstacles to contain or extinguish it.
Frequently asked questions
1.
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Must have a minimum of 6 fully steel vanes
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Outboard bearings
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Must have close cold clearances of 0.0079 inches or less
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Must have a PSI of 14+ (PMAX)
How do I know if my valves are NFPA-compliant? Give us a call at (815) 626-0388 or email Sales@RotaryAirlock.com.
2.
In these situations, NFPA allows for a head of product to be used as an isolation option. The amount of product varies based on the valve model. Contact us if you have questions.
What if im not in compliance? Based on operating temperature & materials of construction, you may not be able to meet NFPA compliance requirements.
Absolutely Not! Rotary Airlock can, and has, engineered and reconstructed most makes & models of airlocks to be NFPA-compliant across all industries.
So you'll get YOUR airlock the way YOU deserve.
Do I really have to buy whole new valves?
3.
Last year in the US alone large-loss fires (those with over $10 Million in losses) resulted in 52 deaths, 233 injuries, and an estimated $12.5 billion in direct property losses.
Don't let the loss of those dollar signs and, more importantly, the loss of those human lives land at your feet.
Why do I need to be NFPA compliant?
4.
How do I know if my valves are NFPA-compliant? Give us a call at (815) 626-0388 or email Sales@RotaryAirlock.com.
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Must have a minimum of 6 fully steel vanes
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Outboard bearings
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Must have close cold clearances of 0.0079 inches or less
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Must have a Pmax of 14+
What if im not in compliance? Based on operating temperature & materials of construction, you may not be able to meet NFPA compliance requirements.
In these situations, maintaining a continuous head of product above the rotary valve may provide an alternative means of meeting explosion isolation requirements. Contact us to learn more and determine whether this approach is suitable for your application.