2 Page / Contents 2-4 Unique and patented features 5 Multiport valves 6-11 Special application configurations 12 Pressure-temperature ratings 13 Cv factors, dimensions, and weights Page / Contents 16 Manual operators and actuators 17 Actuator mounting hole configurations 18 Quick reference selection table 19 How to order Design more economical, flexible, and compact fluid handling systems. Bi-directional flow, simple actuation, lightweight, compact design, and multiport configurations all facilitate improved system design. Superior, longer-lasting in-line sealing. The inert PTFE sleeve completely surrounds the plug. The sleeve provides a large, circumferential sealing surface from port to port. Open, closed, or rotating, the seal is assured. No ball or gate valve can match this sealing power. Secure sealing with no cold-flow, deformation, or rotation of the sleeve. The sleeve is securely nestled in the valve body. High pressure ribs, top and bottom retention, and 360 port lips all assure sleeve containment. No seizing. No sticking. As the plug rotates, the 360 port lips provide a self-cleaning action to remove scaling and adhering media. High Pressure sealing ribs Top retention of sleeve Sleeve relief area Bottom retention of the sleeve 360 lips No cavities. No contamination. There are no body cavities where flow media can accumulate and contaminate future processing. This cavity-free design also prevents sticking. 2 Copyright Xomox Corporation 1965, All rights reserved. Xomox, Tufline. Tufline XP and Matryx are registered trademarks of Xomox Corporation. Xomox XRP is a trademark of Xomox Corporation.
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4 The Tufline sleeved plug valve pays for itself many times over with more up-time and greatly extended service life. There s a fully adjustable in-line seal and dual stem seal. Bolts in the top cover provide quick and easy adjustment. Adjust out in-line leakage between shutdowns. Adjust out potential stem leakage. No ball or gate valve offers this capability. Stem Seal 1. The primary stem seal is around the circumference of the plug. Flow media is prevented from reaching the stem. Stem Seal 2. There are two independent environmental seals. You get double seal protection at no extra cost. The secondary backup seal system provides a wide comprehensive backup seal along the top edge of the plug and the stem. Unmatched stem sealing. The Tufline standard dual stem seal is clearly superior to those of gate valves, ball valves, other plug valves, and many expensive valves with extended auxiliary packing. 360 lips. Port defining lips were developed and patented by Tufline. The lips surround the ports. The lips improve valve performance and extend service life by: Preventing sleeve cold flow and deformation. Eliminating sleeve rotation. Breaking up and removing adhering, scaly deposits from the outer surface of the plug as it rotates. 4
5 Multiport valves 0 position 90 position 180 position Tufline Multiport Sleeved Plug Valves bring economy and more compact system design to thousands of applications. Bi-directional flow for more flexibility. In the diagrams the color indicates the path of fluid flow. Bi-directional flow permits more system design options. Type A Type AX Type C 3-way arrangements. Only the Type A plug will shut off the flow. With the Type AX, C, and D plugs, there is always flow between the bottom port and one of the side ports. Type C pos. 1&2 only Type C pos. 2&3 only Type D Type D pos. 1&2 only 4-way and 5-way valves. For optimum system flexibility 4-way and 5-way multiported valves are available. For details such as sizes available and dimensional information visit or contact the factory. Type D pos. 2&3 only 5
6 Fire Tested Valves Wedge Ring PTFE Diaphragm Metal Diaphragm Thrust Collar Flexible Graphite Cover Seal API-607 Standards. Tufline Fire Tested Sleeved Plug Valves have been tested in accordance with API Fourth Edition - Section Specifications For External Leakage. These valves exceed the sealing requirements specified in those standards. A tight external seal was maintained even after the PTFE sleeve and sealing parts were totally destroyed by fire. Fire tested stem seal. A metal diaphragm overlays the PTFE diaphragm. If the PTFE diaphragm and wedge ring are destroyed by fire, the metal diaphragm maintains the seal. 6 Fire tested cover seal. In the standard valve, if the PTFE sleeve and diaphragm are destroyed by fire, leakage would occur at the cover joint. The flexible graphite cover seal prevents this. It is fitted into a machined counterbore in the valve body. The cover bolts compress the graphite ring between the valve body and cover. Even if fire occurs, this seal is maintained. Vented plug. In fire tested valves, the plug is vented on the upstream side. This relieves the expansive pressure caused by the heat of the fire. Valves with vented plugs are unidirectional. An arrow stamped on the valve body indicates the flow direction. Sizes: - 6. For larger sizes use the Tertiary Top Seal shown on the next page. Configurations: 2, 3, 4, and 5-way. Also partially and fully jacketed. End connections: Screwed, flanged, weld. Pressure ratings: ANSI 150, 300, and 600.
7 Tertiary Top Seal Valves Cartridge inner ring Encapsulated, flexible graphite stem seal PTFE wedge ring PTFE diaphragm Cartridge outer ring Adjusting bolt Valve cover Metal diaphragm Valve body PTFE sleeve Plug Flexible graphite cover seal Control fugitive emissions. This optional top seal package provides exceptional control of fugitive emissions. It meets or exceeds the most stringent current regulatory requirements. Triple sealed for extra protection. Under normal conditions, there are three active seals between the flow media and the atmosphere. Primary sealing is provided by the interaction of the plug, sleeve, and body. Secondary sealing is provided by the PTFE and metal diaphragms. Tertiary sealing is provided at the stem by the encapsulated, flexible graphite stem seal and at the body/cover joint by the graphite cover seal ring. This simple system assures stem sealing. This simple, compact, patented design harnesses complex dynamic forces to assure effective sealing to atmosphere. The metallic cartridge totally encapsulates the flexible graphite tertiary dynamic stem seal. At its outer edge, the metal diaphragm overlaps the graphite static seal ring to reinforce the tertiary seal at the body-to-cover joint. The PTFE wedge ring concentrates the sealing force of the PTFE diaphragm radially against the valve stem for more reliable prevention of external leakage at this secondary seal. API-607 Standards. Like the fire tested valve, the Tufline Tertiary Top Seal Sleeved Plug valve also exceeds API Fourth Edition - Section Specifications For External Leakage. It is available in a broader range of sizes than the standard fire tested model. Vented plug. If this valve is intended for use in a fire tested application, a vented plug is required. Sizes: 1 / 2 inch - 24 inch. Configurations: 2, 3, 4, and 5-way. Also partially and fully jacketed. End connections: Screwed, flanged, socket weld, and butt weld. Pressure ratings: ANSI 150, 300, and
8 Caged Plug Valves PTFE sleeve protection. Tufline Sleeved Plug Valves can be furnished with caged plugs. This provides soft seat protection in throttling applications and in services with high pressure drop through the valve. Typical applications: Waste sludge Calcium carbonate slurry Alum Brine Green liquor Raw river water Lime mud Sulfuric acid with zinc powder Phosphoric acid slurry Soda ash... and many others The cage is contained within the plug. It is fixed in place by pins that are welded in the bottom of the valve body. Bearings on the cage provide clearance between the plug and the cage, so the plug rotates freely. Metal-to-metal throttling. With caged plugs, there is metal-tometal throttling and metal-to-soft seat shutoff. In throttling applications, the cage protects the seat from erosion by shielding the soft seat from direct flow impingement at the valve ports. High velocity fluids. With high velocity fluids, the cage reduces turbulence and cutting action. The cage provides a more direct, contoured flow path through the valve. Sizes: 1-8. Materials: WCB body with CD4MCu plug and cage. 316SS body with CD4MCu plug and cage. (Other materials upon application. Consult your Tufline Sales Engineer.) 8
9 Sampling Valves Fluid analysis, equipment evaluation, problem solving, and quality control all depend on convenient sampling. Safe, simple sampling. 1. Valve open - normal flow. 2. As the valve is rotated and passes the intermediate position, flow is shut off. A specific amount of media is trapped within the plug. There is no trans-flow. 3. With the valve in the fully closed position, the trapped sample can be transferred into an appropriate container by operating sample and vent valving. Plug Cavity Volume - Cubic inches (approximate) / / Infrequent use. In many applications, sampling valves are cycled infrequently. Tufline Sampling Valves provide excellent operating reliability, even after being left open for long periods of time. Tufline Sampling Valves are available in a full range of classes, sizes, and materials. You can also choose from several levels of fugitive emissions control. Gravity Sampling System. Material drops from the tank or hopper into the plug cavity. The modified plug has an opening on one side only. The plug is rotated 180 and the plug contents are fed into the gravity or vacuum system pipe. The plug rotates 180 to its original position and refills. The valve can be manually or automatically operated. A typical application is metered injection of a pelletized or liquid catalyst. Gravity Plug Cavity Volume - Cubic inches (approximate) 1 / / /
10 Additional configurations Separate descriptive brochures and technical data are available for these valves. Ask your Sales Engineer for details. Severe service Tufline Severe Service Valves provide outstanding protection against external leakage, even with extreme thermal cycling. Class 600 Available in sizes 1/2 thru 24 in a wide variety of materials. Multiported also available. Tufline XP Sleeved Plug Valves have a patented shrink seal lip. During thermal cycling, when fugitive emissions are most likely to escape, this patented shrink-seal lip tightens the seal. To enhance protection against leakage to atmosphere, the PTFE chevron rings provide a secondary (completely redundant) pressureassisted stem seal. Live loaded spring washers provide a constant, uniform pressure on the packing. This is especially important during thermal cycling. To protect the spring washers from damage and particle intrusion, they are completely enclosed. Carbon graphite filled PTFE end rings prevent extrusion of the PTFE packing. The primary external seal is around the top of the plug. An optional monitoring/injection port is also available. 10 2ff7e9595c
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