Masoneilan78400/18400 Series Lincoln Log

Product Description

Masoneilan 78400 and 18400 Series Lincoln Log™ Control ValvesThe Masoneilan Lincoln Log™ is a premier multi-stage, axial-flow trim design developed for severe high-pressure liquid letdown applications. Capable of incorporating up to 10 stages of pressure reduction, the Lincoln Log valve effectively manages extreme pressure drops exceeding 8,000 psi (550 bar). Renowned for its robust construction, the Lincoln Log is repeatedly specified for the industry’s most demanding liquid service conditions. Its advanced anti-cavitation design reduces cavitation damage while withstanding direct impingement from abrasive particles such as sand or metal entrained in the process fluid.FeaturesDynamic stability across all operating conditionsTight control performance under high differential pressure (DP)Minimal vibration in severe service applicationsProtected seating surfaces ensuring ANSI/FCI Class V leakage complianceLarge flow passages capable of passing particles up to 1/10 of valve sizeSpecificationsSizes: 1" to 10"; 2" through 24" (50–600 mm)Ratings & Connections:Flanged: ANSI 150–2500, UNI-DIN 10–400Butt weld (BW) or socket weld (SW)Ring type Joint (RTJ)Threaded: NPT up to 2" (50 mm)Body Materials: Carbon steel, stainless steel, chrome-moly, NACE-compliant alloys, and othersBody Styles: Globe and angle pattern designsActuators:Model 87/88 multi-spring diaphragmCylinder, spring-return or double-acting, with integrated volume tankTrim Options: Multi-stage axial flow, engineered staging ratios, and modified linear flow characteristics