
Applications
Overpressure and vapor protection for vessels, tanks, and collectors
Two specialized manufacturers anchor this category: ZOOK for rupture disks and explosion venting, PROTEGO for tank vents, flame arresters, and blanketing.
The short answer
Control Factors Portland supplies ZOOK rupture disks and rupture panels and PROTEGO tank vents, flame arresters, and nitrogen blanketing valves, shipping factory-direct anywhere in the USA, with sizing and code guidance from the factory-trained team.
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Rupture disks and panels (ZOOK)

Reverse-acting and forward-acting disks
Metal disks for gas and liquid service, selected by burst pressure, temperature, and cycling duty.
Graphite disks
For corrosive service where metal disks cannot survive.
Rupture panels and sensors
NFPA-approved explosion venting for dust collectors, with burst indication and alarms.
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Tank protection (PROTEGO)
Pressure/vacuum and emergency vents
Breather protection for low-pressure storage tanks, sized to API and NFPA requirements.
Flame and detonation arresters
Inline and end-of-line protection for vapor control systems.
Tank blanketing
Nitrogen blanketing valves for emissions control and product protection.
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What we need to size it
For disks: set pressure, operating pressure and temperature, media, and holder details. For vents: tank size, pump-in/pump-out rates, product flash point, and blanketing pressure. Send a data sheet or the existing nameplate and we will take it from there.
FAQ
Questions buyers actually ask
How often should rupture disks be replaced?+
It depends on cycling, corrosion, and operating ratio. Disks operating near their burst pressure fatigue faster. We help set a replacement interval from your actual duty and the manufacturer's guidance.
Can you match an existing disk or vent to a current model?+
Yes. A nameplate photo, tag number, or the markings on the existing device is usually enough for us to identify the current equivalent and quote it.
Next in your journey
Liquid Filtration
Ten manufacturers deep, the filtration line card covers everything from a pipeline strainer to a custom ASME vessel: Rosedale, Wessels, Graver, Filter Specialists, Eaton, AJR, United Filters, Cleanova, Filtration Technology Corporation, and Jonell-Nowata-Kaydon.
Explore Liquid FiltrationTell us the service conditions. We will bring the right line.
Request a Quote(503) 669-1185 · sales@cfactors.com

