Catalog excerpts
Overspeed Sensing Valve Model 4110 Overview AMOT Model 4110 Overspeed Sensing Valve provides overspeed protection for engines and rotating equipment. Typical Applications • Offshore • Oil & gas • Construction • Marine, oil spill recovery Type 4110 Overspeed Sensing Valve • Mining Model 4110 Overspeed Sensing Valve Key Features and Benefits • Dependable protection from overspeed for engines and rotating equipment - reduces risk of engine damage and injury to personnel • Available settings from 800 - 4200 RPM in several mounting arrangements - adapts to most popular engine makes and models with ease. Trip setting is field adjustable. • Top mounted tachometer drive - can be mounted ‘in-line’ with existing tachometer cable and tachometer • May be mounted in any position • Factory packed bearings - extends life of equipment • Gulfproofed (anodized aluminum) construction - proven corrosion resistance even in offshore environments • No electricity required, fail safe - low cost and simple installation • Compatible with other AMOT safety control sensors - AMOT provides sole source responsibility for shut down system
Open the catalog to page 1Overspeed Sensing Valve - Model 4110B Operation The Model 4110 Overspeed Sensing Valve uses a precision flyweight speed sensor to vent a pneumatic or hydraulic signal (via a built-in two-way valve) at a pre-set RPM. Basic Operation As the drive shaft is turned by the engine, the weights are forced outwards by centrifugal force and move the spool assembly up the drive shaft against the adjusting arm assembly. When the speed exceeds the preset setpoint, the adjusting arm assembly opens a valve and vents the control pressure. The set point is adjusted by increasing or decreasing the spring...
Open the catalog to page 2Overspeed Sensing Valve - Model 4110B Application Diagram Hydro-mechanical Runaway Shutdown System Sensing Valve Under normal operating conditions, lube oil runs through the Model 4110 Overspeed Sensing Valve to the AMOT Model 4261 Intake Air Shutoff Valve. Lube oil pressure holds the Model 4261 open, permitting normal engine operation. When an overspeed condition arises, the Model 4110 vents off lube oil pressure, causing the Model 4261 to trip and shut off intake air to the engine. As an extra safety feature, the engine cannot be started again until the air shutoff valve is manually...
Open the catalog to page 3Overspeed Sensing Valve - Model 4110B How to order Use the table below to select the unique specification of your 4110 Overspeed Sensing Valve. When ordering, please also specify: 1. Speed Range 2. Shaft Size - Shaft F is standard A Service Type Shafts & Mounting Adapter Oil service, Automatic reset, Viton Air service, Manual reset, Nitrile/Buna N Extended mounting adapter with SAE .188/.183 - Gulfproofed Alternative mounting adapter with flexible shaft - Gulfprofed for 3, 4, 6-71 in-line Detroit Diesel Alternative mounting adapter with flexible shaft - Gulfprofed for 6, 8, 12, 16 V 71...
Open the catalog to page 4Overspeed Sensing Valve - Model 4110B Service Kits Service Kits (Oil Service) Service Kits (Oil Service). Order part number 9114X003 which includes the following: Fig 1 Ref Body assembly Retaining ring Pushrod assembly (including retaining ring) Service Kits (Air Service) Service Kits (Air Service). Order part number 9114X001 which includes the following: Fig 2 Ref Valve retainer Retaining ring Valve stem assembly Retaining ring Gasket Kits for alternate mounting adapters Fig 3 Ref
Open the catalog to page 5AMOT USA 8824 Fallbrook Dr Houston TX 77064 USA AMOT Western Way Bury St Edmunds Suffolk, IP33 3SZ UK Asia and Australasia AMOT Shanghai Rm 4102 - 4104 United Plaza 1468 Nanjing Road West Shanghai 200040 China Tel +86 (0) 21 6279 7700 Fax +86 (0) 21 5237 8560 Email shanghai@amot.com AMOT Singapore 10 Eunos Road 8 #12-06 Singapore Post Centre Singapore 408600 Tel +65 6408 6265 Fax +65 6293 3307 Email singapore@amot.com
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