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A Wide Range of Vent Solutions A Wide Range of Vent Solutions
Protect Your Storage Tanks, Vessels, & Other Equipment from Overpressure & Vacuum Conditions

Protect Your Storage Tanks, Vessels, & Other Equipment from Overpressure & Vacuum Conditions

Consider these advantages when you partner with Scallon Controls:
  • No waiting; most of our PVRVs are in stock and available
  • We can service all your valves, in the field or right at our shop in Beaumont, TX
  • For traditional PVRVs, we offer Enhanced Sealing via the Enardo line
  • For maximum reliability, our Low-Pressure Pilot option will get you to zero emissions

Explore our Pressure Relief and Low Pressure Pilot-Operated Relief Valves

An Ideal Replacement Valve: Varec 2010B
An Ideal Replacement Valve: Varec 2010B
If you are looking for a replacement valve, consider the Varec 2010B. These weight-loaded relief valves protect tanks from damage or deformation and minimize emissions and loss of product due to evaporation.
  • These valves come in both vent-to-atmosphere or pipe away models.
  • The modular design provides flexibility of field installation and allows easy reconfiguration, repair, or on-site upgrading.
  • Oversized pressure and vacuum ports provide maximum flow capacity.
Enhanced Sealing and Emissions Compliance:<br>Enardo ES-850 and ES-950
Enhanced Sealing and Emissions Compliance:
Enardo ES-850 and ES-950
Both the Enardo ES-850 and ES-950 protect against positive overpressure and evaporative loss of product, and also suppress odorous and potentially hazardous vapors. Here’s how they work: when overpressure occurs, the weighted pallet lifts, breaking the seal between the seat and pallet, allowing vapors to pass through the valve orifice and relieving the pressure or vacuum buildup. The valve then reseals upon relief and remains sealed.
Superior Monitoring and Reliable Tight Shutoff Capabilities: Anderson Greenwood 9300
Superior Monitoring and Reliable Tight Shutoff Capabilities: Anderson Greenwood 9300

When maximum reliability is desired, the Anderson Greenwood 9300 Low Pressure Pilot Operated Relief Valve is king. Here’s why: the opening and closing of these relief valves can be monitored by measuring the differential pressure between the main valve dome and valve inlet. This technology can provide real-time information, enabling you to proactively develop corrective actions, optimize maintenance schedules, and improve asset management while reducing emissions. Immediate notification of relief events helps keep workers safe and ensures compliance with environmental regulations.

Get in touch with an expert, find your nearest office location, or send us a note about your next project!
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Featured Products

Varec Series 2010B/2020B Pressure and Vacuum Relief Valves
Emerson
Pressure/Vacuum Relief Valves
Varec Series 2010B/2020B Pressure and Vacuum Relief Valves
Enardo Series 850 High-Performance Pipe-Away Pressure Vacuum Relief Valves
Emerson
Pressure/Vacuum Relief Valves
Enardo Series 850 High-Performance Pipe-Away Pressure Vacuum Relief Valves
Enardo Series 950 Vent-to-Atmosphere Pressure/Vacuum Relief Valve
Emerson
Pressure/Vacuum Relief Valves
Enardo Series 950 Vent-to-Atmosphere Pressure/Vacuum Relief Valve
Anderson Greenwood Series 9300H Low Pressure Pilot Relief Valves
Emerson
Pressure Relief & Safety Valves
Anderson Greenwood Series 9300H Low Pressure Pilot Relief Valves