PARTIALLY CLOSED POSITION

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1 Technical Appendix Designer s guide technical characteristics and design parameters of DMIC Ball Valves Figure 1 Fully Open DMIC s Ball Valves are preferred by sophisticated cusmers who rely on proper facry support, because if there s ever an Engineering problem, we don t dial we call an Engineering meeting in our boardroom - and SOLVE IT! This technical appendix is provided for the audience of Engineers and Designers who have selected DMIC Ball Valves for their application and wish verify operational or Engineering parameters of our valves as they relate the project. While we strive for tal accuracy in all our publications, if you spot an error, please call DMIC HelpLine ll free at DMIC and we will amend the next catalog reprint. Floating Balanced Ball Design, Principle of Operation This discussion of DMIC s Floating Balanced Ball Valve Design operation is primarily applicable DMIC s High Pressure Ball Valves, although many aspects of operation are shared among the trunnion ball multiway designs and the lower pressure brass valves. FULLY OPEN POSITION (Figure 1) When a DMIC ball valve is fully open, the internal parts are aligned within the steel valve body as illustrated in Figure 1. The handle is parallel the axis of fluid flow (facry default), and the ball openings are concentric with the inner holes of the ball seals. A cam path cut in the spwasher permits handle travel only through 90 of arc, which is why a 2-way ball valve is considered a quarter-turn valve. DMIC provides a Pressure Balancing Orifice in its balls which allows the medium permeate the cavity within the valve at line pressure moisten and prevent deterioration of valves left stationary for long periods of time. PARTIALLY CLOSED POSITION (Figure 2) When the handle is turned from the 0 position, the tab at the botm of the spindle causes the ball rotate proportionally and alters the ball valve assembly s effective cross-sectional area, thereby closing the valve. As the angle increases between the ball fluid passage and the axis of flow, the ball, which was previously constrained pivot radially by the spindle tab (perpendicular the axis of flow), is now permitted pivot axially along the hypotenuse of a right triangle drawn between the axis of flow and the ball fluid passage (with force generated upon the ball seals proportional the sine of the angle formed). At 90, the sine equals one, the valve is fully closed, and all force exerted by fluid pressure acts move the ball against the ball seals - hence, the ball is now fully FLOATING because it is free pivot against and exert a force upon either downstream ball seal in response forces arising from pressure at the upstream closed port. Figure 2 Partial Closure Figure 3 Fully Closed FULLY CLOSED POSITION (Figure 3) In the fully closed position, the solid ball surface completely blocks the valve fluid passage and upstream line pressure exerts force upon the floating ball, pressing it in the downstream hard thermoplastic ball seal. With the ball s slight axial displacement ward the downstream seal, the upstream ball seal breaks contact with the ball and rides the meniscus. DMIC s innovative Pressure Balancing Orifice in each of our balls allows fluid at upstream pressure permeate the entire cavity of the closed valve, getting all the way around the only ball seal that is actually sealing, and even behind it. A precision ridge machined opposite the ball seat of DMIC s Ball Seals acts as an additional surface upon which full line pressure is exerted, improving both low and high pressure sealing in DMIC Ball Valves relative ordinary brands. For lower pressures (<1500 PSI) and vacuum, DMIC s softer PTFE Teflon Ball Seals are recommended. DMIC Ball Valves Catalog DBV-0001E Call Toll Free Copyright 2001 Delaware Mfg. Page 46 In Canada

2 Flow Characteristic Curves for DMIC 2-Way Ball Valves DMIC s unrestricted bore ball valves provide a fluid path which in most cases imposes no discernible pressure drop in standard hydraulic circuits. As a result, you can treat our valves as just a like length of fluid line, unless you are working with closed loop or other fancy circuits where a tiny pressure drop carries a price tag in heat generation, etc. The selection chart at right may be used as a guide for confirming your choice of ball valve/fluid line size relative the expected flow in U.S. GPM at a given velocity. Determining Pressure Drop at a Specific Flow Rate DMIC Ball Valves promote smooth laminar flow with STRAIGHT BALL PASSAGE & UNRESTRICTED BORE design. DMIC s 2-Way Ball Valves such as the BVH and BVAL/M/H series, impose so little pressure drop on their own that we include the curves with a 10 foot section of fluid line in the measurement loop. This chart will give you an real-world indication of Ball Valve P in a hypothetical 10 foot line. DMIC s Multiway and Manifold Mounted Ball Valves introduce a pressure drop component because instead of a straight fluid path, media must change direction as it travels through the valve. We have included valve pressure drop curves for each principal type of DMIC specialty ball valve. All flows quoted in this section taken with petroleum based fluid, 150 SUS, at 100 F (38 C). Pressure Drop of DMIC Specialty Ball Valves DMIC s specialty Ball Valves are precision designed maximize available cross sectional area and minimize the protrusion of parts throughout internal fluid passages. However, the nature of DMIC s trunnion ball multiway valves and manifold mounted valves, results in a pressure drop component that should be taken in account when designing circuits bearing these valve types. DMIC s quality oriented engineering bias results in valves which cost more manufacture but provide among the best performance available among like valves in the field. Please verify your application s operating conditions confirm that the pressure drop is accounted for in your system design. Copyright 2001 Delaware Mfg. Page 47 In Canada

3 Order Code Sealing Materials Technical Data Never operate DMIC Ball Valves outside the temperature range published below for your selected ic & Elasmer materials, even if the combination is approved in the Media Acceptability Table (next page). You may experience valve leakage or failure, and will void the warranty. DMIC Description Temperature Range Seal Compound Identification Acro nym Classification Synthesis Trade Names Chemical Resistance Examples F C Suitable Not Suitable Ball Seal Materials (Digit 3) 1 Delrin PTFE Teflon PEEK Hi-Temp ULTRA LOW FRICTION Lo-Temp FERROUS Special Applications -22 F 212 F -76 F 356 F -40 F 482 F -310 F 482 F -30 C 100 C -60 C 180 C -40 C 250 C -190 C 250 C Delrin Polyoxymethylene Polytetrafluoroethylene Polyether-ether-kene Proprietary DM PTFE PEEK PAI Call DMIC Cast Iron PI Saturated heteropolymer of heterogeneous polymer chains Homogeneous, pure polymer chains, containing fluorine. Aromatic Linear Polymer O-Ring & Backup Seal Materials (Digit 4) 1 Buna-N 2 EPR 3 Vin 4 Teflon 5 Urethane 6 Silicone 7 Neoprene 8 Buna-S 9 Corfam 300 F -20 F 350 F -320 F 500 F -20 F -135 F 400 F 212 F 121 C 148 C -28 C 176 C -195 C 260 C -28 C 121 C -92 C 204 C 121 C -65 C 250 C 100 C Nitrile Butadiene rubber Ethylene-propylenediene rubber Fluoropropylene methylene Polytetrafluoroethylene Polyurethane Silicone Rubber Chloroprene Rubber Styrene and butadiene rubber Corfam porometric substrate impregnated with adiprene polyurethane rubber NBR EPR FPM PTFE PUR SI CR COR Elasmer Unsaturated heteropolymer compounded from acrylonitrate and butadiene. Elasmer Saturated heteropolymer utilizing double valence bands outside the primary chain Elasmer Multiple monomers & fluorine compounded in saturated heteropolymer Homogeneous, pure polymer chains, containing fluorine. ic Elasmer Crosslinked addition polymer Elasmer Made from silicone, oxygen, hydrogen, carbon. Elasmer Homopolymers of chlorobutadiene Elasmer Styrene and butadiene rubber. Substitute for natural rubber. Totally new material with high abrasion, oil and fuel resistance. Waterproof. Available with silicone or teflon coating. Copyright 2001 Delaware Mfg. Page 48 In Canada Delrin Teflon Hostaflon Fluon Victrex Nitrile Perbunan Chemigum Elaprim Krynac Buna AP Dutral Epcar Keltran Nordel Vin Fluorel Technoflon Teflon Hostaflon Fluon Aclathan Durethan U Ultrathan Hydraulic Fluids Water Inert Gases Air Alcohols Glycols Petroleum based fluids Foodstuffs Acids & alkalis Organic & Inorganic Solvents Most fluids acceptable with Delrin Moly Radioactive use Hydraulic fluids Many acids Alcohols & organic solvents Call DMIC Petroleum based fluids Water Air Phosphate esters Brake Fluid Acids & Alkalis NBR compatible fluids Acids & alkalis Foodstuffs Organic & Inorganic Solvents Gasoline Glycols Cold Water High aniline point oils Chlorinated biphenyls Some water glycols Freons High aniline point petroleum Silicate Ester Brake fluid Alcohols Water Kenes General purpose Petroleaum Water Glycols Water/oil emulsion Water soluble oil High molar acids & alkalis Fluorines Liquids for human consumption Fluorines Liquid alkali metals High molar acids & alkalis Hot Water Steam Strong Alkalis Phosphate esters Petroleum based oil & grease Chlorinated hydrocarbons Phosphate esters Fluorines Liquid alkali metals Oxidants Hot media DOT 3/4 Brake Fluid Phosphate ester Ozone Petroleum High test gasoline Hot detergent water Phosphate This information provided as is, for reference purposes only. DMIC makes no guarantee as the accuracy of this information. In the event of misapplication, the entire responsibility rests with the user. Verify your selection with your system s seal manufacturer for a final authority.

4 Seal Compound Media Compatibility Table Legend: R - M - U - X - Recommended Marginal Probably not acceptable Not recommended This media compatibility table is provided for your reference as an INDICATION of acceptable usage. Please bear in mind that DMIC relies upon suppliers of seal raw materials and premium brand O-Rings for much of this information and it is advised that you consult your system s seal supplier if there is any question or doubt. The seal manufacturer s data shall be considered a final authority in case of discrepancy. DMIC supplies this data as is, for reference purposes only, and the user is responsible in case of valve misapplication. Acetaldehyde U U R U U U R U U X Acetamide R U R R U U M U R R Acetic Acid M M R R U U R U U U Acene U M R M U U M U U U Acephenone U U R U U U U U U X Acetylene R R R R X X R R X X Ammonia R R R R U X R U U R Ammonium Hydrozid R R R R U U R R R R Amyl Acetate U U M U U U U U U U Anderol L-774 M U U U R U U R M X Antifreeze R R R R U U R R X X Aniline U U R U U U U M M R Ansul Ether M U M U U R U U M U Aroclors M U R U U X M R M R Askarel R U U U U U U R M R ASTM #1 R U U R R R R R R R ASTM #3 R U U U R R U R R R ASTM Fuel A R U U R R R U R R M ASTM Fuel B R U U U U R U R R U ASTM Fuel C R U U U U R U R M U ASTM Fuel D M U U U U R U R X X Au Transmission R U U M R R M R X R Benzaldehyde R R R R U U R R R R Benzene U U R U U U U U U M Benzine R U U R R R U R R M Benzoic Acid U U U U U U U R M R Benzophenenone U U R X U U U R R X Bezyl Alcohol U U R R U U X R M R Bleach R R R R U U U R M R Borax R R U R R R R R M R Boric Acid R R R U R R R R R R Brake Fluid (non Bromine U R R U U U R U U R Bromobenzene U U U U U U U R M M Bunker R U U U R R U R R R Butane R M R R R U U R R M Butler R U R R R R R R R R Butyl Acetate U U U U U U U U U U Butyl Alcohol R R R U U U R R R R Butyl Amine M U U U U U R U U M Butyl Carbil U U M U U X U M U M Butyl Cellosolve M U M U U U X U U X Butylraldhyde U U U U U U U U U X Carbil R R R U U U R R M R Carbil Acetate U U U U U U U R X R Carbon Disulfide U U U U U X U R R R Carbon Tetrachlor R U U U U U U R M M Carbonic Acid R R R R R R R R R R Casr Oil R R R R R R R R R R Cellosolve U R U U U U U U U M Chassis Grease R U M R R X U R X X Chloracetic Acid U U U U U U X U U X Chloracene U U M X X X U R X U Chlordane R U M X X X U R M X Chlorine U U U U U U X R R X Chlorobenzol U U U U U U U R X X Chloroform U U U U U U U R M U Chorosulfonic Aci U U U U U U U U U M Chrome Plating So U U U U U U R R U R Chromic Acid U U U X X X M R U R Citric Acid R R R X X X R R R R Cod Liver Oil R U R R R U R R R R Coffee R R R U U U R R R X Corn Oil R U U R R U R R R R Creosote R U R R R M U R R R Creosote Oil R U M X X X M R X X Creosylic Acid U U U U U U U R M R Crude Oil R U U R R X U R M X Cycloherxane R U M R R R U R R M Cyclohexanol R U R X X X U R R R Decalin U U U U U U U R R M Denatured Alcohol R R R U U U R R R R Diacene U U U U U U U U U M Dibutyl Amine U U M U U U U U U R Dibutyl Phthalate U U U U U X X M U M Dichloro Aniline U U U U U U U M X X Dichloro Butane R U U U U U U R M R Diesel Oil R U M U U U U R R R Diethylamine R R R U U M R U U M Diethyl Benzene M U U U X X X R X X Diethylene Glycol R R R R U U R R R R Dimrthyl Ether U U U M M R U U U U Dimethyl Formamid U X R X X X R U X M Dimethyl U U R U U X X R X M Copyright 2001 Delaware Mfg. Page 49 In Canada

5 Media Compatibility Table, cont. Dimethyl Terephth U U U U U U U R X X Dioctyl Phthalate U U R U U U M R M M Dioxane U U R U U U U U U U Diphenyl U U U U U U U R M U Dow Corning 550 U R R R R R R R R X Dow Gard R R R R M M R R R X Dowtherm A&E U U U U U U U R M X Elco 28 R U U M R R R R R X Epoxy Resins X X R R X X X U X X Ethane R U U R R M U R M R Ethanol R R R R U R R R R X Ethanolamine R R R R U M R U U R Ethyl Acetata U U R U U U R U U U Ethyl Benzene U U U U U U U R R U Ethyl Cellulose R R R R U R R U U R Ethyl Cloride R R R R M R U R R M Ethyl Ether M U M U U R U U M U Ethyl Formate U U R R X X X R R R Ethyl Hexanol M R R R X X X R R X Ethyl Merlaptan U U X M X X M R X M Ethylene Cloride U U U U U U U R X R Ethylene Oxide U U R U U U U U X U Formaldehyde M M R M U U R U U M Formic Acid M R R R X X M U X X Freon 12 R R R R X R U R U X Fuel Oil R U U R R U U R R R Furan U U X U U X X X X X Furfural U U R U U X U U X X Furfuyl Alcohol U U R U U U U X U X Fyrquel U U R U U U R R U X Gallic Acid R R R R U U X R R R Gasoline R U U U U R U R R M Gelatin R R R R U U R R R R Glucose R R R R X U R R R R Glycerine R R R R U U R R R R Heplane R U U R R R U R R X Hexaldehydee U U R R X X R U U U Hexane R U U R R R U R R M Hexanol R R M R U U R R X X Home Heating Oil R U U M R R R R X X Hydazine R R R R X X R X X X Hydrochloric Acid R M R R M U U R U R Hydrocyanic Acid R R R R U X M R U R Hydrogen Peroxide R R R R U X R R R R Hyydrogen Sulfide U U R R U X M U U R Hydroquinone M U U U U X X R M X Hypoid Gear Lube R U U M R R M R X X Iodine R R R U X X X R R X Isocyanate X X X X X X X R X X Iso Octane R U U R R R U R R M Iso Phorone U U R U U U U U M U Isopar R X U R R R U R X X Isopropanol R R R R U U R R R X Isopropyl Acetate U U R U U U U U U X JP-4(MIL-J5624) R U U U R R U R M X JP-5(MIL-5624) R U U U R R U R M X Kerosine R U U R R R U R R R Latic Acid R R R R U X X R R R Lacquers U U U U U U U U U U Lard R U R R R R R R R R Linoleic Acid R U U R X X R R X R Linseed Oil R U M M R X R R R R Lye Solutions R R R R U U R R M R Malathion R U U X X X U R M X Maleic Acid U U U U U X X R X R Mercury R R R R X X X R X R Meter-Cresol U U U R U U U R X X Methane R U U R R M U R M R Methanol R R R R U U R U R X Methyl Acetate U U R R U U U U U U Methacrylic Acid U U R R U U U M U X Methyl Cellosolve M U R M U U U U U X Methylene Chlorid U U U U U U U R M X Methyl Ethyl Ke U U R U U U U U U U Methyl Mercaptan X X R X X X X X X X Milk R R R R U U R R R R Mineral Oil R U M R R R R R R R Mineral Spirits R U U U R R U R X X Monovinyl Acetyle R R R R X X R R X R Mustard X E R X X X R R X X Naphtha R U U U R R U R M M Naphthalene U U U U X X U R R M Naphthenic Acid R U U U X X U R R M Natural Gas R R U R R R R R M R Neatsfoot Oil R U R U R R R R R R Nitric Acid U M R U U U U M U R Nitrobenzene U U U U U U U R U X Nitropropane U U R U U U U U U X Octane R U U U U U U R M M Octanol R R R R U U R R X X Oleic Acid M U U M X X U R X R Oleum R U U M X X U R X R Oronite 8200 R U U R X R U R R X Oxalic Acid R R R R X X R R R R Peanut Oil R U M M R X R R R R Pentane R M U R R U U R M X Perchlorethylene R U U U U U U R M X Petroleum Ether U U U U U U U R X X Copyright 2001 Delaware Mfg. Page 50 In Canada

6 Media Compatibility Table, cont. Phenol U U U U U U U R M X Phenylhydrazine U M U U U X X R X R Phosphoric Acid R R R R M U R R M R Pine Oil R U U U X X U R R R Potassium Hydroxi R R R R U U M U M R Propane R U U R R M U R M R Propanol R R R R U U R R X X Propyl Acetate U U R R U U U U U U Pydraul U U R R U U U R U R Pyranol R U U R R R U R X R Pyridine U R U U U X U U X R Rapeseed Oil R U R R R R U R R R Resurcinol X R R X X X X X X X SAE 10W30 R U U M R R R R X X Seawater R R R R U U R X R R Silicone Grease R R R R R R R R R R Silver Nitrate R R R R R R R R R R Skelly Solvent R U U U X X X R R X Skydrol U U R U U U U R X R Skydrol 500 U U R U U U U U M R Sodium Hydroxide R R R R U R R R M R Sovasol R U U R R R U R R X Soy Bean Oil R U M M R X R R R R Stearic Acid R R R R X X R X X R Sddard Solvent R U U R R R U R R M Sucrose R R R R U U R R R R Sulfuric Acid R R R R R U U R U R Tail Oil R U U M R U X R X X Tannic Acid R R R R U X R R X R Tar R U U M U X R R R R Tartaric Acid R R R R X X R R R R Tetrachloro Ethan U U U U U U U R M X Tetralin U U U U U U U R R R Tidewater Oil R U U R R R R R R R Toluene U U U U U U U R M X Trichloro Ethyloe M U U U U U U R M R Triethanol Amine M R R R U U X U U R Turbine Oil R U U U R R U R R R Turpentine R U U U R U U R M R UCDN 50HB280X R R R R X X R R X X Univs J-43 R U U R R R U R X X Varnish R U U U U M U R M X Vinegar R R R R U U R R M R Water R R R R U U R R R R Wheat Germ Oil R U U M R R R R X X Whiskey & Wine R R R R U U R R R R Wood Oil R U U R X M U R M R One Year Limited Warranty DELAWARE MANUFACTURING INDUSTRIES CORPORATION, HEREINAFTER REFERRED TO AS DMIC, WARRANTS ITS PRODUCTS (CONSUMABLE ITEMS EXCEPTED) TO BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP, UNDER NORMAL USE AND SERVICE, FOR A PERIOD OF SIX MONTHS FROM DATE OF INITIAL USE, OR ONE YEAR FROM DATE OF SHIPMENT FROM FACTORY, WHICHEVER IS FIRST. THIS LIMITED WARRANTY IS EFFECTIVE ONLY IF THE EQUIPMENT OR APPARATUS IS USED AS DIRECTED, IS NOT SUBJECTED TO MISUSE, NEGLIGENCE, OR ACCIDENT, AND IS NOT ALTERED, TREATED, OR REPAIRED BY ANYONE OTHER THAN DMIC TECHNICAL STAFF. THE BUYER S EXCLUSIVE REMEDY FOR BREACH OF THIS LIMITED WARRANTY SHALL BE, AT THE SOLE DISCRETION OF DMIC, EITHER REPAIR OR REPLACEMENT OF THE NON-CONFORMING MATERIAL BY DMIC, OR REIMBURSEMENT BY DMIC FOR THE PRICE OF SAID NON-CONFORMING MATERIAL. IN ORDER TO OBTAIN SAID REMEDY, THE BUYER SHALL DELIVER WRITTEN NOTICE OF THE ALLEGED BREACH AND REQUEST A RETURN GOODS AUTHORIZATION ( RGA ) FROM DMIC. THE BUYER SHALL RETURN THE NON-CONFORMING MATERIAL TO DMIC FREIGHT PREPAID WITHIN THIRTY DAYS AFTER THE BUYER HAS BEEN GRANTED THE RGA. NO INCIDENTAL, PROXIMATE, CONSEQUENTIAL, OR OTHER DAMAGES SHALL BE RECOVERABLE. DMIC SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES OR CONTINGENT LIABILITIES INCLUDING, BUT NOT LIMITED TO, LOSS OF LIFE, PERSONAL INJURY, LOSS OF CROPS, LOSS DUE TO FIRE OR WATER PROPERTY DAMAGE, AND CONSEQUENTIAL TRADE OR OTHER COMMERCIAL LOSS ARISING OUT OF THE FAILURE OF THE DMIC PRODUCT. ALL WARRANTIES EXPRESS OR IMPLIED ARE SET FORTH IN THIS LIMITED WARRANTY; THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE OF THIS SAID LIMITED WARRANTY. DMIC MAKES NO WARRANTIES OF FREEDOM FROM PATENT INFRINGEMENT, OR MERCHANTABILITY, OF FITNESS FOR A PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING OR USAGE OF TRADE OR OTHER LIKE OR DIFFERENT EXPRESSED OR IMPLIED WARRANTIES, EXCEPT AS MADE ABOVE. DUE TO OUR POLICY OF CONTINUAL PRODUCT IMPROVEMENT, THE SPECIFICATIONS IN THIS CATALOG MAY CHANGE WITHOUT NOTICE. WHEN DESIGNING BY SPEC, PLEASE REQUEST A CERTIFIED PRINT. Copyright 2001 Delaware Mfg. Page 51 In Canada

7 Save time and money with SSW System Are you still using NPT fittings in your suction lines? Throw away your buggywhips! Many users who now swear by DMIC s SSW System were a little skeptical, o. Frequently, the purchase price of SSW adapters is higher than the low cost NPT fittings they replace. When we tried demonstrate how spending a little more on the suction line could save thousands in fabrication cost, cavitation-asted pumps, start-up filtration, leakage, and warranty returns, a majority of first time users accommodated us with a protype SSW HPU. Today, the user list of DMIC SSW reads like the Who s Who of quality power unit fabrication in North America. Don t take our word for it - next time you see a power unit that looks impressively crafted, look for DMIC Ball Valves and SSW System - it ll be there. Dual Limit Switch Bracket with Integrated Lockout Send input the PLC and enable OSHA compliance with this dual purpose accessory. Also available in single switch model. See the full range of accessories on page 12! Step size adapters One size steps can frequently ship the same day. Designers can now maintain nominal ID s even across hose runs.. SNS Suction Line Simplifier Installs in reservoir hole provide valve mounting point, baffle tube / strainer internal thread. Pilot for neat positioning, swivel allows valve alignment after welding phase. O-Ring Sealing right up 6 bore DMIC s ESAE Extended O-Ring Boss system allows you completely eliminate NPT from power units! Adapters in Inline, 45 and 90 configurations Designers of innovative power units can implement flooded suctions and ganged inlets match any reservoir style. SSW adapters are dimensionally interchangeable between U.S. & Metric thread models. Authorized Distribur: Full Member, NFPA National Fluid Power Association, U.S.A. Delaware Manufacturing Industries Corporation Kenmore Avenue Buffalo, NY Tel. (716) Fax (716) Lange Voorhout EH The Hague Tel Fax Hannover Drive St. Catharines, ON L2W 1A3 Tel. (905) Fax (905) Call ll free DMIC (3642). In Canada, please call DMIC Ball Valves Catalog Document No. DBV-0101E Copyright 2001 Delaware Manufacturing Revision 0