control valve brochure
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Control and On/Off Valves Engineered Control Specialists in Process Efficiency and Energy Conservation

Maximum technology, minimum maintenance For over five decades Forbes Marshall has manufactured and provided advanced quality instrumentation products for various For over 25 years Malema Sensors has manufactured and provided advanced quality instrumentation products for various industries such as Power, Oil & Gas, Food & Beverages, Pharmaceuticals, Pulp & Paper, Chemicals and HVAC. industries such as Semiconductor, Power, Oil & Gas, Food & Beverages, Pharmaceuticals, Pulp & Paper, Chemicals and HVAC. Marshall control valves and actuators are designed to cater to a variety of industrial...

What is a control valve ? Process plants consist of hundreds or even thousands of control loops all networked together to produce a product to be offered for sale. Each of these control loops is designed to keep some important process variable such as pressure, flow, level, temperature, etc, within a required operating range to ensure quality of the end product. Each of these loops receives and internally creates disturbances that detrimentally affect the process variable and interaction from other loops of the network provides disturbances that influence the process variable. To reduce the...

Series 100 Single seat, 3 flanged control valve body. - For all standard flow control, pressure control and ON/OFF applications. Forbes Marshall series 100 valve all standard industrial for all applications in Carbon steel, Series 100 valve bodies are designed forbodies are designed control standard industrial controlAlloy applications in Carbon steel, They are manufactured using advanced automatic forming and casting steel and Stainless steel materials.Alloy steel and Stainless steel materials. They are manufactured using advanced automatic forming and casting techniques to ensure high...

Series 140/160 - Single seat, 4 flanged control valve body - For critical pressure control and flow control applications. Series 140 / 160 valves are designed for use in are designed for high in applicationsand critical operating Forbes Marshall - Series 140 / 160 valves applications with use pressure drops with high conditions.drops and critical with high loadable shaft guiding on topplug bottom makes pressure Its parabolic plug operating conditions. Its parabolic and with high loadable it suitable for extreme operating conditions. shaft guiding on top and bottom makes it suitable for...

Technical data: Series 100,140&160 CV Values Parabolic 0.5 Valve Size (Inch) 4 Valve size, Parabolic Plug CV and Silencer basket CV data Size (inch) Single Fold Silencer Basket CV 2 Fold Silencer Basket CV CV value perforated trim Valve size Lift (Inch) (Inch) • Noise reduction same as that of perforated trims. However more economical • Application of Roboter (pneumatic pressure reducer) possible with silencer baskets • For calculations and selection of summary KV/CV values, it is necessary to apply the correct x values in the calculation • Applicable for pressure ratings of ANSI 150 and...

Multi Spring Actuator MSA Pneumatic diaphragm actuator The Forbes actuator model MSA actuator model used with series to be used with Multi springMarshall multi spring is designed to beMSA is designed100, 140 & 160 control Series 100, The MSA control valve bodies. The MSA thrust values with a actuator is valve bodies.140 & 160series comes with a wide range ofseries comes and thewide range of thrust values and the field reversible to suit your control action. actuator is field reversible to suit your control action. Its rolling diaphragm design offers high reliability, power and actuator...

Universal Diaphragm Actuator - Series UI,UIII & UV - high actuating power at affordable cost Forbes Marshall universal diaphragm actuator series UI, UIIIa& UV features a pneumatic actuator Universal diaphragm actuator series UI, UIII & UV features pneumatic actuator designed for designed for applications thatactuating high actuating power. Its optional reinforced spring with applications that demand high demand power. Its optional reinforced spring with compact air compact delivers up todeliverslbf thrust forcelbf thrust force for extreme pressure control chamber air chamber 14000 up to...

Combined Pressure Reducing & Desuperheating Valve Both steam pressure reduction & temperature reduction (Desuperheating) are done in a single valve making it an extremely efficient, cost effective and compact solution. Compact design High rangeability 40:1 Reduced noise level Efficient cooling water atomization Reduced straight runs for pressure & temperature measurements Better control over change in flow E Combined PRDS valve - water entry through bottom Combined PRDS valve - water entry through top Size Rating (inch) ANSI Size Rating (inch) ANSI Weight Weight (Lbs) Flanged (Lbs) BW...

Three -way valves For control & on/off function mixing and flow dividing. Applications: • All thermodynamic processes • Cooling system of motor ships • Heating and cooling systems for plate pressing, vulcanizing and other presses • Attemperator application Rating ANSI Valve mounted pressure controller model 902 The model 902 is a valve mounted pneumatic controller used with Malema control The model 902 is a valve mounted pneumatic controller used with Forbes Marshall control valves for pressure control or over flow control application. The controller comes valves for pressure control or...

Positioner Technical Information Nomenclature Description Pneumatic Weatherproof Electro pneumatic Weatherproof Electropneumatic with position Tx Electropneumatic with limit switch Electro pneumatic Ex proof Electro pneumatic Ex proof with position Tx Electro pneumatic Ex proof with limit switch Type Input Working resistance Impedence Supply pressure Air consumption Air flow capacity Linearity Hysterisis Repeatability Air connection Gauge connection Ambient temperature Protection class Weight Ex proof certification Electric connection 820-PP Pneumatic 3 15 psig NA NA 21 90 Psig 3 Litres/min...