Control Valves

Ernie Graves Company delivers innovative control valve solutions designed to increase process availability and help reduce maintenance cost. This is enabled by world class products from Warren Controls, Siemens, and Brodie International.

Piston Control

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On/Off Flow Control BV10-11
Pressure Reducing BV50
Flow Rate Control BV54
Back Pressure/Pressure Relief BV60
Differential Control BV70
Two Stage Hydraulic Control BV86
Digital Control BV88

BRODIE Piston Control Valves

Piston Control Valves use combinations of pilots and solenoids for multiple applications ranging from back pressure control to differential control. The valves are pilot operated and operate on a balanced piston principle, spring biased to a closed position.

Flange Connections: ANSI
Pressure Ratings: 150#/285; 300#/740 ANSI
Materials of Construction:

Body: Cast Steel
Cylinder/Piston/Seat Ring: Stainless Steel

Globe Control

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WARREN CONTROLS Heavy Globe Control Valves

Series 1800 models are Heavy Duty Globe Valves with versions for severe service applications including high pressure differentials, corrosive materials, liquids, gases, and steam. They are for modulating or on/off control in 2-way or 3-way mixing or diverting designs, available in steel & iron with a wide selection of trims, actuators, and accessory instrumentation.

Sizes: ½” to 12”
Two-Way & Three Way, Linear
Body: Iron, Steel or Stainless Steel
Temperature: -20° to 800°F
Pressure: up to 740 PSI
Cv: up to 1649
Shutoff: Class III, IV

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WARREN CONTROLS Precision Globe Control Valves

Precision Globe Control Valves Series 2800 models are lower cost, high precision bronze or stainless steel, threaded or buttweld style Globe Valves. Particularly suited for gases, steam, or liquids including corrosive materials that are not highly viscous or solids bearing.

Sizes: ½” to 2”
Two-Way & Three Way, Linear
Body: Bonze or Stainless Steel
Temperature: -20° to 500°F
Pressure: up to 720 PSI
Cv: up to 40
Shutoff: Class III, IV, VI

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WARREN CONTROLS High Capacity Globe Control Valves

High Capacity Globe Control Valves Series 2900 models are cast iron, 2-way balanced or unbalanced, modulating, on/off or 3-way mixing or diverting designs. Particularly selected for moderate pressure drops, temperatures below 400 degrees, high capacity steam, water or compatible liquids, and gas applications. A cage retained seat and balanced trim style that's the best there is from a standpoint of repair or maintenance.

Sizes: 2-½” to 10”
Two-Way & Three Way, Linear
Body: Cast Iron
Temperature: -20° to 400°F
Pressure: up to 400 PSI
Cv: up to 960
Shutoff: Class II, III, IV

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warren controls Compact Globe Control Valves

Compact Globe Control Valves Series 5800 models are of compact design for tight fit applications. The small footprint, high-efficiency designs are typically for steam, chemicals and dirty fluids with high pressure drops. Besides being compact, this valve has an extremely rugged design with top and bottom guiding, highly resistant to damage in boiler feed water control.

Sizes: ½” to 4”
Two-Way Balanced/Unbalanced Cage Retained Seat
Body: Bonze, Steel, or Stainless Steel
Temperature: -20° to 800°F
Pressure: up to 740 PSI
Cv: up to 170
Shutoff: Class IV, VI

Rotary Globe Control

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WARREN CONTROLS E-Ball Rotary Control Valves

E-Ball Rotary Control Valves Series 3800 models are eccentric, segmented ball, characterized rotary valves, particularly best suited for erosive service. Various trim selections include stainless steel, Alloy 6, and Teflon or PEEK for Class VI shutoff, or ceramic trim for slurries or gritty material control applications. Models are available in essentially any castable alloy body material. Unbeatable for highly erosive slurries in power plants like flyash and lime slurries with the ceramic trim design.

Sizes: 1” to 8”
Two-Way Rotary, Flow to Open / Flow to Close
Body: Steel, Stainless Steel, or Custom Alloys
Temperature: -20° to 800°F
Pressure: up to 740 PSI
Cv: up to 1420
Shutoff: Class IV, IV+, VI

Level Control

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WARREN CONTROLS Lever Valves

Lever Valves Pilot operated 1/2” through 2” threaded bronze or stainless steel body; semi-balanced 2 1/2” through 3 flanged iron body. Lever actuators can be reversed from rising lever opens valve to rising lever closes valve.

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WARREN CONTROLS Float Cage

Cast iron construction, 1-1/2” NPT connections, 316 stainless steel float ball, steel lever and turnbuckle assembly. Lever and turnbuckle assembly are adjustable to ease installation and connection to lever valve. Mounting bosses can be tapped for optional sight glass assembly.

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WARREN CONTROLS Overflow Trap

Overflow Trap Features steel chamber, brass/ bronze internal valve, 316 stainless steel float ball, sizes 1” through 2” with NPT connections, and 3” through 6” with 150# flanged connections. Pressure drops to 15 PSI. Condensate capacity to over 500,000 #/HR. large end cover provides easy access to internal assembly.

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WARREN CONTROLS Vacuum Breaker

Vacuum Breaker Opens gradually to admit outside air to relieve a vacuum in a tank and resets when tank pressure is restored. Features iron, steel, or stainless steel body; non-asbestos or TFE disc.

Pressure Independent Control

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WARREN CONTROLS Pressure Independent Control Valves

The PICV allows a building management system to control differential temperature to the coil or HEX and vary the control valve without external disturbances influencing flow rates. Maximizes ?T, stability, efficiency and energy savings. Designed for large complexes where attention to the carbon footprint is important. Allowing ±1 degree of setpoint versus the typical 3 degrees, equaling much less energy wasted, and much tighter temperature control.

Fast Electric Control

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WARREN CONTROLS AmurAct Fast Electrically Actuated Control Valves

The first electric actuator that replicates the speed and tight shutoff of a pneumatic and at 1% of the operating costs of making air. Think about $800/year/valve versus $8/year/valve. Made possible by an innovative, specially designed linkage that enhances a valve’s equal percentage flow characteristic providing rapid response to load changes and accurate, stable control of water, steam and common energy transfer fluids in a variety of demanding industrial and commercial applications. Warren Controls’ compact AmurAct electrically operates 1/2” through 4” control valves with shutoff capability rivaling pneumatics. Works with multiple supply voltages and signals. Electronic fail-safe needs no electrical energy to maintain lockup against elevated water or steam pressures. Stainless steel linkage construction is maintenance-free.

Building Automation

Warren Controls offers control valve configurations to meet the needs of nearly any building automation control system. A configuration is a valve body assembly, complete with an actuator that can modulate the valve plug to control flow. Stem operating forces are dependent upon packing friction, the size of the seat opening, or area of imbalance, and the differential pressure against which the valve must operate or close. Actuator selections include a variety of pneumatic and electric operators.

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WARREN CONTROLS Electric Motor Actuated Valves

For electric actuation … power, efficiency, compactness, flexibility and economy are combined in Warren Controls Series MP and VM actuators. VM motor technology and state-of-the-art electronic control circuitry team up to provide a multitude of control features, high force output and amazingly low energy consumption. So many features are built in that add-ons are seldom needed.

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WARREN CONTROLS Diaphragm Actuated Valves

When an air supply is available, the features of spring-and-diaphragm pneumatic actuators provide a cost effective solution. These powerful operators incorporate large diaphragm areas that in combination with the wide variety of valve types can achieve high close-off and tight shut-off. Warren Controls Building Automation pneumatic actuators use air pressure to extend their stems, and spring force to retract them, so that attached stem-in-to-close valve bodies will open upon reduction or loss of air pressure (fail open), and stem-out-to-close valve bodies will shut (fail shut). Control precision, split range and close-off forces are optimized by the use of positive positioners.

Accessories

WARREN CONTROLS ValveWorks® sizing and selection tool

ValveWorks® sizing and selection tool is a state of the art FREE program, offering sizing solutions for Globe or Rotary 2-Way or 3- Way valves based on ISA 75.01 and proven International standards.

PRESSURE DROP is calculated for efficient control
PRECISE Cv REQUIRED is calculated for single or staged uses
WARNINGS PROVIDED for cavitation or flashing
CALCULATES NOISE level
GRAPHS CURVES for selected valve, stroke vs flow
SELECTS CORRECT actuator and accessories&

Please contact us to receive your free copy of this program

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WARREN CONTROLS Other Accessories

Pneumatic and Electropneumatic Positioners, I/P Converters, Limit Switches, and Solenoids incorporate many years of design, manufacturing, and application experience, creating the most durable, reliable instruments on the market.