Clarkson C-Valve Slurry Throttling Valve 1” Thru 10”

Clarkson C-Valve Slurry Throttling Valve 1” thru 10”

This unique valve provides both high performance and long life in the toughest of environments and features a truly variable orifice for throttling control of abrasive slurries.

Features • Specifically designed for slurry service. •No metal parts in contact with the flowing slurry. • Molded elastomer sleeve, no fabric. •Inherent abrasion resistance of sleeve provides both high performance and long life. • The C-Valve closes in compression, not tension, creating less stress on the sleeve, therefore the sleeve is not subject to tear propagation resulting from solid particles passing through the valve at high velocity. • Rubber muscle constricts a full 360-degrees around the sleeve maintaining a perfectly round and concentric aperture across the full throttling range. • Round orifice provides high capacity, straight through, unobstructed slurry flow. • Modified linear characteristic make the valve compatible with most automatic control requirements. • Throttling range from wide open to 50% reduction in diameter, or 75% reduction in orifice open area, up to a 90% reduction of maximum flow. • Field-replaceable, elastomer wear Shown with optional actuator and parts are standard. control accessories •Automated or manual valve actuation. •Valve sizing and applications assistance available. General applications Technical data •Mining Size range : 1” thru 10” (larger sizes •Power may be available) Operating • Pulp and paper pressure : 100 psi • Alumina Sleeve : Gum rubber standard • Chemical Temperatures: Standard sleeve rated to • Cement 160°F, up to 400°F with proper elastomer selection Options Reduced port sleeves available down to 3/16” diameter allows throttling range to be optimized for process conditions.

Flow Control

Total Flow Control Solutions™ Tyco reserves the right to change product designs and specifications CLKMC-0109-US-0307 without notice. Copyright © 2003 by Tyco International Ltd. Clarkson C-Valve Slurry Throttling Valve 1” thru 10”

Features The design of the C-Valve takes into account the many culprits in slurry systems that cause problems for other types of valves including abrasion, cavitation, corrosion, sanding, scaling, and temperature. It is rugged and abrasion-resistant with good control characteristics. It features a straight-through flow path with no metal parts in direct contact with the slurry. The C-Valve consists of an elastomer sleeve, available in various materials, surrounded by an elastomer “muscle”, inside a cast ductile iron body housing. To throttle the slurry flow, the muscle is compressed inward by hydraulic pressure, reducing the orifice size of the sleeve in a 360-degree squeeze. As it constricts, a round and concentric aperture is maintained across the entire throttling range, from wide open to 50% reduction in diameter. Elastomer This equates to a 75% reduction in open area sleeve or up to 90% reduction of maximum flow. Its closure pattern provides modified linear control. Various sleeves available to suit Sleeve retainer application in size and media The standard C-Valve sleeve orifice is full port in the wide-open condition; however, many Elastomer muscle Ductile iron body housing times a reduced port is better suited to the Face drilled and tapped to ANSI B16.5/150 application. Optional reduced-port sleeves are available to change the size of the orifice. Available Sleeve Sizes They are inexpensive, easily installed and give the user the flexibility of varying the valve size Valve Size 1 1.50 2 3 4 6 8 to meet changing conditions. Additionally, in Full Port 1 x 1 1.5 x 1.5 2 x 2 3 x 3 4 x 4 6 x 6 8 x 8 applications where the exact process Reduced Port 1 x .75 1.5 x 1 2 x 1.50 3 x 2.5 4 x 3 6 x 5 8 x 7 conditions are not initially known, a smaller 1 x .50 2 x 1 3 x 2 4 x 2 6 x 4 8 x 6 bore reducing sleeve valve can be installed to correct inadvertent oversizing. 1 x .38 3 x 1.50 6 x 3 8 x 4 1 x .25 The standard sleeve is made from gum 1 x .19 rubber, the best all-around elastomer. It combines superior physical properties with a wide range of chemical compatibility. Other available elastomers include: Chlorobutyl: A high temperature elastomer having good physical properties for services up to 260°F. EPDM: High temperature applications up to 250°F. Neoprene: Compatible with many oils and solvents at temperatures up to 200°F.Modest abrasion resistance limits its use and poor permanent set qualities. Viton®, Nitrile, Hypalon and Urethane are also available on an application basis. Note Contact the factory for assistance in sizing and proper application of the available Viton® is a registered trademark of DuPont Dow Elastomers. elastomers.

Slurry throttling valve orifice C-Valve comparison Other slurry throttling valves, like a pinch valve, do not provide any throttling action until it is almost 60% closed. This Full open limited throttling range greatly reduces the effectiveness of the pinch valve to make fine adjustments to flow. The 100 C-Valve, on the other hand, begins to change flow immediately upon 80 actuation. The nearly linear characteristic of the C-Valve changes 60 the flow in proportion with actuator input. The C-Valve has superior 40 abrasion resistance over pinch type valves. With the elastomer sleeve 20 compressed a full 360-degrees around 0 by the muscle, abrasive particles cannot 22 40 60 80 100 initiate cutting and tearing.

By comparison, a pinch valve sleeve is Throttling position always being stretched, creating tension and exposing the pinch valve sleeve to rapid wear. Additionally, the unconfined sleeve is subject to flutter, further contributing to premature failure. Pinch Valve A slurry-throttling valve is a key part of a pipeline system and should be considered along with pumps, sumps, Full open pipe, and fittings in the complete design. A common problem in the handling of slurries is valve sizing. No matter how 100 well designed the slurry valve is, to function properly it must be the correct 80 size. With the C-Valve, Tyco Valves & Controls offers the industry’s most 60 authoritative literature on valve sizing and custom recommendations. So when 40 you need slurry valves, don’t settle for just the hardware. Take advantage of the 20 many years of slurry valve applications 0 experience. 22 40 60 80 100

Throttling position

Valve Sizes

Valve Size 1 1.5 2 3 4 6 8 A 5.38 6.13 7.81 10.44 12.81 18.5 28 B6 7.63 9.25 13 14.5 19 24.88 C 4.25 5 6 7.5 9 11 13.5 BC 3.12 3.88 4.75 6 7.5 9.5 11.75 n x d 4 x 1/2-13 4 x 1/2-13 4 x 5/8-11 4 x 5/8-11 8 x 5/8-11 8 x 3/4-10 8 x 3/4-10

n x d

Tyco reserves the right to change product designs and specifications CLKMC-0109 without notice. Copyright © 2003 by Tyco International Ltd. 3 Clarkson – Series C-Valve Actuator for 1”, 1-1/2” and 2” Slurry Control Valves

Features The Series C-Valve Actuator is designed to function with a Clarkson Series C •Air-over-hydraulic intensifier Slurry Control Valve as a single integrated • Converts available air supply to a unit. The valve and actuator operate higher pressure hydraulic force for together with a slurry system process valve actuation controller and air supply to provide precise throttling control in a slurry line. • Mounts on C-Valve to form single integrated unit The actuator is an air-over-hydraulic • Accepts 3-15 psi instrument air or intensifier that develops the required 4-20 mA electrical signal hydraulic pressure for the control valve to • Self-recharging hydraulic system increase or decrease the slurry flow through the valve. It features a • Rapid response to controller signals self-recharging hydraulic system that • Provides precise control of valve automatically maintains charging volume modulation during operation. This improves actuator • Simplified hydraulic line bleeding reliability and simplifies hydraulic line when installing or reinstalling unit bleeding when installing or reinstalling the • Reliable operation actuator and valve assembly. • Heavy-duty design Responding to the input signal from the slurry system controller, the actuator converts the available air supply to a air hydraulic port hydraulic return springair diaphragm positioner filter (to valve) chamber assembly higher hydraulic pressure that, in turn, operates the control valve. air vent The actuator operates with the slurry system process controller and process sensor in a closed loop feedback system. The actuator automatically adjusts its associated control valve according to changes in pressure, flow, pH, or other slurry system variable functions being monitored. With a change in the monitored value, the controller sends a signal to the actuator to increase or decrease hydraulic pressure on the hydraulic control valve, which increases or gauge decreases the size of the valve orifice, respectively. reservoir check valve air filter bearingseal plunger Modulation is achieved by the positioner which reacts to the incoming control signal by increasing or decreasing the air pressure exerted on the air diaphragm Manual Control assembly resulting in an increase or For manual control, a hydraulic decrease of hydraulic pressure on the hand pump is used to actuate the control valve. valve. The pump, which is furnished complete with reservoir, Unit Options pressure gauge, and connecting The Series C-Valve Actuator can accept a hose, is a portable unit that can be 3-15 psi pneumatic signal from the carried from valve to valve for process controller or a 4-20 mA electrical actuation adjustments. signal when equipped with an optional I/P Transducer. For operation, instrument- quality air supply must be furnished. An optional air/filter regulator is available as Reno Facility Phone: 775-359-4100 part of the control package. Tyco Valves & Controls www.tycovalves.com

The data presented in this bulletin is for general information only. Manufacturer is not responsible for acceptability of these products in relation to system requirements. Patents and Patents Pending in U.S. and foreign countries. All rights reserved. Printed in U.S.A. Tyco reserves the right to change product design and specifications without notice. © Copyright 2003.