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Serving the LPG and NH3 (Anhydrous Ammonia) industries worldwide, we offer a diverse range of products tailored to your specific market needs. Explore our extensive collection and discover the solutions best suited for your segment within these industries
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Discover tailored solutions for LPG and NH3 applications, catering to specific operational requirements. Whether you're in need of LPG systems, bobtails, tankers, or other equipment, find the ideal match to meet your unique needs and optimize your operations.
MEC is Innovation Made Simple
Marshall Excelsior Company is a progressive manufacturer of world class LPG & NH3 equipment, leading the industry in innovation and low emission products, supporting Bulk Plant, Transport, Delivery/ Dispensing, and Domestic and Recreational applications. Our goal is to create the safest equipment solutions for everyday operations while allowing the largest amount of product to be transferred, dispensed, or otherwise used, resulting in an overall savings to the customer.
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Why Choose OPW Propane Energy Solutions?
Experience That Leads the Industry
For over half a century, Marshall Excelsior has delivered advanced, precision-engineered gas control solutions trusted across the globe. Our expertise is built on decades of innovation, workmanship, and industry leadership.
Quality You Can Trust
Every MEC product is manufactured under rigorous quality standards to ensure unmatched reliability and long-term performance. Our commitment to innovation and durability ensures dependable performance worldwide, with regional customization available to meet the unique needs of every market.
A Team Committed to You
At MEC, our customers come first. We provide comprehensive technical assistance, application guidance, support in the field, and a global sales network to support customers at every stage. Our commitment to service ensures reliable performance, safe installations and long-term value. We don’t just supply components-we build long-term partnerships.
LPG
Leading the Industry in Innovation and Quality
Experience the difference with MEC’s industry-leading LPG equipment, expertly designed and thoroughly tested in the USA. Every product we create is built with innovation in mind, helping you work smarter, save time and money, and keep your operations running smoothly. At MEC, quality isn’t just a promise, it’s our standard. Our products come with a 5-year warranty and an impressive 25-year regulator service life, giving you confidence that your investment will go the distance. When you choose MEC, you’re getting more than high-performance equipment. You’re gaining a partner. Our global team of experts is here to support you every step of the way – with dependable technical advice, fast service, and personalized support whenever you need it.
Choose MEC for superior performance, long-lasting reliability, and the support that keeps your business moving forward.
Pilot Operated Pressure Relief Valve
Designed for use with large LP gas and NH3 stationary storage container applications with 4"-300# ANSI flanged openings. The pilot-controlled relief mechanism allows for precision start to discharge set points in conjunction with the high flow angled seat design for high relief flow capacity in a simplified design, which eliminates the need for traditional external pressure relief valves. The dual pilot design allows for the change of either pilot valve without taking the storage tank container out of service, significantly reducing the cost of future service and replacement.
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