
Liquid Controls D4111 Two-Stage Preset 10:1 Unit for LPG & Fuel Systems
Part/SKU: D4111-d3q4g9
$980.46
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Request this quantity →MEC MEV200SIR/250 Semi-Internal Relief Valve – 2" MNPT, 250 PSIThe MEC MEV200SIR/250 Semi-Internal Relief Valve is a high-capacity, OEM pressure relief valve designed for propane and LP gas systems requiring dependable overpressure protection. Featuring a 2-inch MNPT connection and a factory-set 250 PSI relief setting, this valve is ideal for bulk storage, pumping, and transfer applications.
The semi-internal design helps protect the relief mechanism while allowing rapid pressure discharge when system limits are exceeded. Manufactured by Marshall Excelsior, this valve meets the demands of professional gas installations and industrial service environments.
Key Benefits:Genuine MEC / Marshall Excelsior OEM relief valve2" MNPT male connection for high-flow applications
Factory set at 250 PSISemi-internal construction for added protection
Designed for propane & LP gas compliance
Brand New⚠️ Professional installation required. Always verify system pressure ratings and local code compliance before installation.
| Part / SKU | MEV200SIR/250 |
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Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.
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