Control Valves for Severe Service Applications

Transcription

1 Control Valves for Severe Service Applications DFT Model HI-00 Severe Service Parameters Pressure diferential > 000 psi (9 bar) Temperatures > 800ºF (7ºC) Highly erosive and/or corrosive service Service with entrained water droplets such as wet steam and mixed phase applications Light slurry service Bufeting or pulsating luid Valve Design The HI-00 Control Valve features an in-line straight-thru venturi low design. The control element, a spherical ball, is contained by a cage that positions the ball relative to the downstream seat by means of linear stem travel. There are no close clearances between the moving parts (i.e. cage, ball and seat). These features enable the valve to operate smoothly and eiciently at high or low temperatures and/or in luids carrying suspended particles such as slurries. FCI 70 Class V shutof is standard. Stem Cage DFT designs products using the latest CAD, FEA, and CFD design technology software and manufactures in Exton, PA. HI-00 Product Line Upstream Wear Bushing Downstream Seat Ball Valve Body Sizes: to * Trim Sizes: ¼ to 8 Pressure Class: ASME 50 to 500 Standard Body Materials: Carbon Steel, Stainless Steel and Chrome-moly End Connections: Weld End and Flanged Stem Seal: Live-loading Packing Top or Bottom Entry to Internal Trim Flow Characteristics: Linear or Equal Percentage Cartridge Assembly Guide Pin * Larger sizes, consult factory.

2 DFT HI-00 Materials of Construction * and Application Guide Body / Bonnet (normally matches pipe) BODY Cage: / to Cast Stellite # A05 F or F A79- Cage: -/ & Larger WC w/stellite # Hardfacing CF8M/Stellite # Cartridge A5 CF8M Guide Pin A9 B7 A9 B8M Gland/ Follower 0 SS TRIM STYLE Trim Code (A) (B) (C) (D) Stem Trim 7- PH A8 A8 Ball: / to PSZ Ceramic 0C Stellite Stellite Ball: and Larger Stellite # Seat: / to 0C Stellite # Stellite # Seat: -/ & Larger 0C SS/Stellite SS/Stellite Wear Bushing 0C Stellite # APPLICATION TRIM CODE APPLICATION TRIM CODE Boiler Feed Pump Bypass A Drum Level Control B Auxiliary Steam Control C Attemperator Spray Control C Sootblower Control (Hi-Temp) D Turbine Bypass C Feed Water Control B Turbine and Boiler Drain B *Standard materials of construction are shown. These materials can be modiied for special applications. Contact the factory for more information. DFT and HI-00 are Registered Trademarks of DFT Inc. All other trademarks are the properties of their respective owners and are used for purposes of identiication only. Flow Characteristics HI-00/MSV-00/Ultra-Trol Flow Characteristics The classic DFT design has a linear low characteristic. This characteristic gives the best low control over the widest range. DFT s venturiball design is the only design that actually works with the physics of the luid low. Incoming low enters through the nozzle to the control area. The smoothly converging nozzle lowers turbulence as the low moves around the curved control path. Note that only rounded surfaces and cones are used for the control function. As the low exits the valve, the diverging nozzle controls expansion and recovery so that no turbulence is added to the low stream. This design provides a superior, smooth low control. The preferred operating range of the valve is between 5% and 90% open. % of Maximum Flow Venturi Ball Flow Characteristics 00% 90% 80% 70% 0% 50% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 50% 0% 70% 80% 90% 00% Valve Percent Open

3 DFT HI-00 Face to Face Dimensions RAISED FACE BUTT WELD END A A Nominal Valve Size HI-00 Face to Face Dimensions* ASME Class 50 ASME Class 00 ASME Class 00 ASME Class 900 ASME Class 500 ASME Class 500 NPS DN in mm in mm in mm in mm in mm in mm / / / / / / / * Dimensions per ASME B.0. Valves can be supplied to meet end user requirements. Class 500 and higher pressure valves are supplied to meet end user requirements. HI-00 Maximum Valve Flow Coeficient Size NPS / /8 / / / / SizeDN Cv (Kv) (0.9).5 (.).5 (.9) 0 (8.) 0 (7) (7) 5 (9) Size NPS / 8 SizeDN Cv (Kv) 80 (9) 5 (08) 80 (55) 0 (75) 70 () 80 (0) DFT and HI-00 are Registered Trademarks of DFT Inc. * Larger sizes consult factory.

4 DFT Control Valve Operation Closed Position In the closed position, pressure moves the ball into the conical seating surface and holds it in place. Line contact between the ball and the seat results in high surface loads between the seat and the ball producing tight closure. As pressure increases, the seat load increases improving the seal. During each valve stroke, the ball rotates and repositions itself presenting a new sealing surface to the seat, prolonging the tight shutof capability. Temperature changes do not afect the tight shutof since there is freedom of movement between the ball and the seat. The ball cannot become wedged into the seat. The guide pin is used to set the valve position. During normal operation, it has no function. Full Open Position In the full open position a straight-thru lowpath exists and the valve operates with the inherently high low capacity of a venturi. The ball is irmly held out of the low stream by four inclined pads on the cage which oppose the pressure diferential force. The Bernoulli pressure diferential moves the suspended particles towards the center of the luid stream, preventing them from settling out into the body. This keeps the valve clean and free of material deposits in all positions during the valve stroke. Close Throttling Position As the valve opens, it operates in the close throttling position. In this position, the ball is supported by the two forward inclined pads on the cage and the seat surface which oppose the pressure diferential force caused by the Bernoulli effect. The ball is supported and stable throughout the valve stroke and does not pinwheel or chatter. Intermediate Throttling Position In the intermediate throttling position, the ball rests on the four cage pads and is opposed by the same diferential pressure force. The stable suspension of the ball throughout the valve stroke permits extremely close and repeatable control throughout the entire valve stroke.

5 Cavitation Control Using the illustration below, at P the luid stream is all liquid. Liquid lashes at the valve port when the pressure at the vena contracta (P VC ) drops below the liquid vapor pressure. As the velocity decreases in the exit nozzle, the pressure increases (or recovers) to P and the vapor bubbles collapse. This is known as the potentially damaging phenomena called cavitation. Unlike tortuous path valves, our control valves manage cavitation. Bubbles form at the lowest pressure (highest velocity) which is at the center of the luid stream. The subsequent collapse is within the hydraulic barrier, not on metal surfaces. Our nozzle design provides a smooth recovery prior to the luid exiting the valve. P P P VC The Bernoulli Principle Bernoulli Energy per unit volume at inlet = Energy per unit volume at outlet P + /ρv + ρgh = P + /ρv + ρgh Where: P = Pressure Energy; /ρv = Kinetic Energy; ρgh = Potential Energy The best example of the Bernoulli Principle is often called the Bernoulli Efect which states that luid pressure decreases as luid velocity increases. P P The illustration shows the typical change in pressure as the luid moves through the valve. At inlet, the pressure is P. Velocity increases through the valve to a maximum as it moves through the valve port. At the valve port, the pressure drops to P VC (pressure at the vena contracta), which is the lowest pressure in the valve. As the luid exits the valve, pressure recovers to P which is lower than P. P VC 5

6 Nomenclature HI-00 Control Valve GLAND FOLLOWER GLAND PACKING GUIDE RING STEM BONNET BUSHING BONNET BONNET SEAL UPSTREAM WEAR BUSHING UPSTREAM SEAT CAGE BALL DOWNSTREAM SEAT DOWNSTREAM WEAR BUSHING FLOW WEAR BUSHING SEAL WEAR BUSHING SEAL SEAT SEAL SEAT SEAL CARTRIDGE ASSEMBLY GUIDE PIN SEAL GUIDE PIN BODY

7 Our Unique Venturi-Cage Valve Straight-thru Design- solves your performance problems. Eliminates Damage: Our unique nozzle design smoothes turbulence which eliminates body, trim and piping damage caused by high velocity luid impingement in your system.. Handles Greater Flow: Since we have no tortuous path through our valve, our valves have a higher Cv than that of the same size valve made by competitors, often saving you money.. Precision Modulation & Control: Our 00: turndown ratio and linear low characteristic gives you precise control over the entire operating range. Unique Trim Design lowers your cost of ownership. In-Line Repair: All styles can be repaired in-line without the need for expensive special tools saving you time and money.. Long Life: Our trim design uses wear components at the critical places along the low path maximizing design life for the application.. Low Replacement Costs: Our unique ball, cage and wear bushing design allows you the lexibility to replace only the worn parts, lowering your cost of repair signiicantly when compared to our competition. Wide Application Range- can be used in nearly any service. ANSI 50 to 500: Handles all ANSI applications, pressures up to,000psi and temperatures from -5 F to 900 F.. Liquid, Gas, Steam, Slurry: Our non-tortuous path design handles liquids, gases, steam (including mixed phase low), abrasives and many slurry applications.. Materials: Standard body materials are Carbon, Alloy and Stainless Steel. High nickel and exotic alloys are also available any weldable alloy that is available as a forged material can be used. Venturi Nozzle Design reduces turbulence in your piping system. Cavitation Control: Our nozzle design controls cavitation and reduces the associated noise and vibration.. Particulate and Mixed Phase Flow: Our nozzle design moves particles and water droplets to the middle of the lowstream avoiding costly damage.. Prevents Erosion: Our nozzle design smoothes the low and reduces the potential for valve body and pipe erosion. Class V Shutof Actuation The actuator (Linear: pneumatic, hydraulic, electric etc.) and accessories (positioners, limit switches, manual over-rides, etc.) of your choice can be mounted on the valve. 7

8 Applications Aerospace Air Fuel Oil Gas High Pressure Water with ines Methane Vapor Chemical Abrasive Slurry Control Hot Hydrogen Gas Pitch Blend Control Powerhouse Applications Super Critical Water Oxidation Government/Military Test Air Cryogenic Nitrogen Gas Steam High Pressure Water Pulp & Paper Powerhouse Steam Control Power Bottom Ash Condensate Drain Drum Emergency Blowdown Drum Level Control Feedwater Control Feedwater Recirculation Fuel Oil Control Geothermal Water Injection Power Operated Relief Soot Blower Control Spray Control (Attemperator, Reheat/Superheat) Steam PRV Thermal Drain Turbine Bypass Turbine Steam Extraction Steel Powerhouse Reinery Abrasive Slurry Control Amine Service Butadiene DEA Desulphurization Sour Water HS, NH, Hydrocarbon Hydrocarbon Sluicing Level Control Pitch Blending Control Platinum Catalyst Slurry Quench Water to Coker Sour Water Sulfur Recovery Throttling Valve Pipeline Gas Plant Pigging Pipeline Control Petrochemical Heavy Oil Upgrading 8

9 Codes & Standards ASME B.5 Pipe Flanges & Flanged Fittings ASME B.0 Face to Face & End to End Dimensions of Valves ASME B. Valves Flanged, Threaded & Welding Ends ANSI/FCI 70- Control Valve Seat Leakage HI-00 & Ultra-Trol seat test ANSI/ISA 75.0 Flow Equations for Sizing Control Valves ANSI/ISA Face-to-Face Dimensions for Flanged Globe-Style Control Valve Bodies - LSV-00 API 598 Valve Inspection & Testing Unilo seat test MSS-SP 5 Standard Marking System for Valves, Fittings, Flanges & Unions Sizing DFT Control Valves DFT Control Valves are sized using standard ISA sizing formulae for liquid, gas and steam applications. Please complete the Application Data Sheet on page 0 so that we can specify the proper valve for your application. Additional information concerning any valve that is being replaced by our valve such as the Cv of that valve and the original data sheet can be used to efectively specify the proper valve as well. Accessories The following accessories are available for the DFT Control Valves ACTUATORS ACTUATOR ACCESSORIES PACKING SPECIAL TRIM Pneumatic Diaphragm Air Filter Regulator Graphite Feedwater Pneumatic Piston Air Set Telon (CVH) Steam Electric Limit Switches Live Loaded Catalyst Electro-Hydraulic Manual Override Emission Compliant Slurry Hydraulic Positioner Manual Solenoid Transducer 9

10 FAX OR SCAN AND THIS COMPLETED FORM TO THE FACTORY CUSTOMER: ADDRESS: CONTACT: PHONE: FAX: General Process Data Applicaion Size/schedule Size/schedule Min Normal Max Units Valve Type Temperature Fluid properties (if known) Units Entry Orientaion Trim 7 Viscosity Valve Design Conditions 8 Pressure 9 Temperature Units Packing Process Notes 5 Seals Actuator Actuator Accessories. Air Posiioner Digital/EP/Type Signal. Electric 5 Solenoid Type/Model/Voltage Limitswitch Quanity/Locaion. Hydraulic *Notes Type/Model/Voltage psig 8 Gages. Manual 9 Special Notes 0 P O Box 5

11 DFT ULTRA-TROL The DFT ULTRA-TROL Control Valve features hardened sleeves for slurry applications. This style valve is designed for langed end applications and bench replacement of the seat insert. The internal design is the same in-line venturi low design used for the HI-00. The control element, a spherical ball, is contained by a cage which positions it relative to the downstream seat. Stem travel is linear and operating thrusts are low. The result is excellent control in tough environments. The ball, cage and stem can be replaced in-line through the bottom cover. FEATURES: Upstream Seat Liner Ball Straight-thru design / to Carbon Steel, Alloy Steel Stainless and High Alloys ANSI RF, RTJ or DIN Ends Linear Characteristic Hardened Sleeves Temperatures: -5 F to 000 F Bench Repair Manual, Pneumatic, or Electric Low Operating Thrust Bottom Entry Downstream Seat Liner Cage Guide Pin Ultra-Trol Maximum Flow Coeicient Size NPS / / / /.5 Size DN Cv (Kv).5(.9) 0(8.) 0(7) (7) 5(9) 80(9) 5(08) 80(55) 0(75) 70()

12 DFT LSV-00 The LSV-00 Control Valve is an economical control valve designed for flanged applications. Trim is replaceable in the field through the bonnet. Construction is Carbon or Alloy Steel with stainless steel internals. Other materials of construction are available upon request. Can be used for modulating control or for on/off gas, liquid and steam applications. Class IV shutoff is standard. Features: / to ANSI 50 and 00 Carbon Steel and Alloy Steel ANSI RF ends Top entry Globe design Characterized trim Equal Percentage, Linear, Quick Opening Pneumatic Actuation Stem One-Piece Gland Replaceable Seat Plug (See Trim Options) LSV-00 Maximum Flow Coefficient Size NPS / /.5 Size DN Cv (Kv) 5 () 8 (7) () 0 () 50 (0) 7 (00) 7 (50) 5 (80) DFT is a Registered Trademark of DFT Inc. LSV-00 is a trademark of DFT Inc.

13 MATERIALS OF CONSTRUCTION* COMPONENT CARBON STEEL ALLOY STEEL Body A WCB A7 WC9 Bonnet A WCB A7 WC9 Stem 0 SS Guide Nitronic 0 Plug Gland Follower Seat DFT LSV-00 0 SS 0 SS 0 SS 0 SS Packing Flexible Graphite or Teflon Bonnet Seal Bonnet Bolting Flexible Graphite/ A9 B7/A 9 H *Standard materials of construction are shown. These materials can be modified for special applications. Contact the factory for more information. DFT is a Registered Trademark of DFT Inc. LSV-00 is a trademark of DFT Inc. All other trademarks are the properties of their respective owners and are used for purposes of identification only. TRIM OPTIONS End user specifications are used to determine the appropriate valve configuration for maximum performance. Valve trim is interchangeable, offering reduced port, standard port and full port options in the same valve body. Fast (quick-opening) for on/off service Linear for superior mid-range control Equal percentage for best low range control Flow Characteristics 00% 90% 80% % of Maximum Flow 70% 0% 50% 0% 0% Quick Opening Linear Equal % 0% 0% 0% 0% 0% 0% 0% 0% 50% 0% 70% 80% 90% 00% Valve Percent Open

14 DFT LSV-00 Size Class A in (mm) B in (mm) C in (mm) D in (mm) E in (mm) Weight LB (Kg) (8).8 (0).9 (5) 0.8 (75). (7) 7 () (90).8 (0).9 (5) 0.8 (75). (7) 77 (5) (8).8 (0).9 (5) 0.8 (75). (7) 7 () (9).8 (0).9 (5) 0.8 (75). (7) 77 (5) (8).8 (0).9 (5) 0.8 (75). (7) 7 () (97).8 (0).9 (5) 0.8 (75). (7) 77 (5) ().9 (8).0 (5) 0.8 (75). (7) 8(8) (5).9 (8).0 (5) 0.8 (75). (7) 9 () (5).8 (8) 7. (5).78 (50). (7) 0 (00) (7).8 (8) 7. (5).78 (50). (7) (0) (98).5 (8) 8. (5).78 (50) 5. () (05) 00.5 (8).5 (8) 8. (5).78 (50) 5. () 5 (5) 50.9 (5) 5.75 () 5. () 00.5 (8) 5.75 () 5. () (5) 5.5 (0) 5. () (7). (0) 5. () E is dimension required for disassembly LSV-00 Pressure and Temperature Limits ANSI Class 50 ANSI Class 00 Body Packing Min Temp Max Temp Max CWP Min Temp Max Temp Max CWP WCB Teflon -0 F (-9 C) 00 F (00 C) 85psi (9.bar) -0 F (-9 C) 00 F (00 C) 70psi (5bar) Graphite -0 F (-9 C) 800 F (5 C) 85psi (9.bar) -0 F (-9 C) 800 F (5 C) 70psi (5bar) WC9 Teflon -0 F (-9 C) 00 F (00 C) 90psi (0bar) -0 F (-9 C) 00 F (00 C) 750psi (5.7bar) Graphite -0 F (-9 C) 800 F (5 C) 90psi (0bar) -0 F (-9 C) 800 F (5 C) 750psi (5.7bar)

15 DFT LSV-00 LSV-00 Linear Trim Sizing Coefficients Model LSV-00 Linear Trim FL =.9 All Sizes Xt =.75 All Sizes Size Port Travel Coefficient 0% 0% 0% 0% 50% 0% 70% 80% 90% 00% / C Cv (5).79 (0) Kv / C Cv (5).79 (0) Kv / D Cv (9).79 (0) Kv C Cv (5).79 (0) Kv D Cv (9).79 (0) Kv E Cv ().79 (0) Kv / E Cv ().79 (0) Kv / F Cv ().79 (0) Kv / G Cv (7).79 (0) Kv F Cv ().79 (0) Kv G Cv (7).79 (0) Kv H Cv (8).8 (0) Kv H Cv (8).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv L Cv (7).8 (0) Kv L Cv (7).8 (0) Kv M Cv (5). (0) Kv N Cv (5). (0) Kv

16 DFT LSV-00 LSV-00 Equal % Trim Sizing Coefficients Model LSV-00 Equal % Trim FL =.9 All Sizes Xt =.75 All Sizes Size Port Travel Coefficient 0% 0% 0% 0% 50% 0% 70% 80% 90% 00% / C Cv (5).79 (0) Kv / C Cv (5).79 (0) Kv / D Cv (9).79 (0) Kv C Cv (5).79 (0) Kv D Cv (9).79 (0) Kv E Cv ().79 (0) Kv / E Cv ().79 (0) Kv / F Cv ().79 (0) Kv / G Cv (7).79 (0) Kv F Cv ().79 (0) Kv G Cv (7).79 (0) Kv H Cv (8).8 (0) Kv H Cv (8).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv L Cv (7).8 (0) Kv L Cv (7).8 (0) Kv M Cv (5). (0) Kv N Cv (5). (0) Kv

17 DFT LSV-00 Fast Opening Trim Sizing Coefficients Model LSV-00 Fast Opening FL =.9 All Sizes Xt =.75 All Sizes Size Port Travel Coefficient 0% 0% 0% 0% 50% 0% 70% 80% 90% 00% / C Cv (5).79 (0) Kv / C Cv (5).79 (0) Kv / D Cv (9).79 (0) Kv C Cv (5).79 (0) Kv D Cv (9).79 (0) Kv E Cv ().79 (0) Kv / E Cv ().79 (0) Kv / F Cv ().79 (0) Kv / G Cv (7).79 (0) Kv F Cv ().79 (0) Kv G Cv (7).79 (0) Kv H Cv (8).8 (0) Kv H Cv (8).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv J Cv ().8 (0) Kv K Cv (7).8 (0) Kv L Cv (7).8 (0) Kv L Cv (7).8 (0) Kv M Cv (5). (0) Kv N Cv (5). (0) Kv

18 DFT LSV-00 ORDERING INFORMATION Please specify the following: Size Trim Size Actuator Failure Mode Class Characteristic Actuator Accessories End connection Packing Body Material Leakage Class Size Class Ends Body Mat l Trim Size * Trim Mat l / LSV-00 (Includes Diaphragm Actuator Only) Trim Char.** Packing/ Seals Leakage Class Valve Part # 50 Graphite/ LCCARA(A,B,C)(E,L,F)GCD RF WCB C 0 SS E, L or F Class IV () 00 CFG LCCBRA(A,B,C)(E,L,F)GCD 50 Graphite/ LDDARA(B,C,D)(E,L,F)GCD RF WCB C or D 0 SS E, L or F Class IV () 00 CFG LDDBRA(B,C,D)(E,L,F)GCD 50 Graphite/ LEEARA(C,D,E)(E,L,F)GCD RF WCB C,D or E 0 SS E, L or F Class IV () 00 CFG LEEBRA(C,D,E)(E,L,F)GCD 50 Graphite/ LGGARA(E,F,G)(E,L,F)GCD RF WCB E, F or G 0 SS E, L or F Class IV () 00 CFG LGGBRA(E,F,G)(E,L,F)GCD 50 Graphite/ LHHARA(F,G,H)(E,L,F)GCD RF WCB F, G or H 0 SS E, L or F Class IV () 00 CFG LHHBRA(F,G,H)(E,L,F)GCD 50 Graphite/ LKKARA(H,J,K)(E,L,F)GCD RF WCB H, J or K 0 SS E, L or F Class IV () 00 CFG LKKBRA(H,J,K)(E,L,F)GCD 50 Graphite/ LLLARA(J,K,L)(E,L,F)GCD RF WCB J, K or L 0 SS E, L or F Class IV () 00 CFG LLLBRA(J,K,L)(E,L,F)GCD 50 Graphite/ LPPARA(L,M,P)(E,L,F)GCD RF WCB L, M or N 0 SS E, L or F Class IV () 00 CFG LPPBRA(L,M,P)(E,L,F)GCD * Standard (Full sized) Trim is the highest letter code. Single reduced port trim is one letter lower, double reduced port trim is two letters lower. See pages, 5 and for trim designation. ** E = Equal %; L = Linear; F = Fast Opening LSV-00 Actuator Part Number Size Class Fail Open (U) or Close (C) Handwheel Airset Positioner Solenoid & Limitswitch Actuator Part # All Choose (U,C) N = None; Handwheel not currently available A = Included N = None D = Digital E = E-P P = P-P L= Limitswitch S = Solenoid Assigned by Factory Standard Accessories Digital VAC D00 Positioner E-P VAC V00E P-P VAC V00P Airset ControlAir Type 00 Solenoid ASCO 80 Limitswitch TopWorx Other accessories available, consult factory 7

19 Trim Type Description Service Leakage Trim characteristic LSV-00 Top Guided Trim Top guided, unbalanced, single seat trim. This style trim is suitable for pressure drops up to 00 psi in a non-cavitating environment. Your most economic choice for standard control applications. Up to Standard Class 50 Class 00 Class IV Fast Opening Linear Equal % LSV-00 Cage Guided Trim Cage guided balanced and unbalanced trim. This is the preferred trim style for modulating control when moderate flow rates exist. The balanced trim is used for sizes over to reduce actuator force requirements. Up to Standard Class 5/50 Class 50/00 Class 00 Class IV, Class VI Optional Linear Equal % MSV-00 Venturi Ball Design Our unique venturi ball design provides superior control, long life and low maintenance costs for moderate pressure drop applications. The MSV-00 is designed for flanged applications. Seat replacement is accomplished on the bench. Up to 8 Moderate Class 00 Class 900 Class 500 Class V Linear Hi-00 Venturi Ball Design This unique venturi ball design provides superior control, long life and low maintenance costs for severe pressure drop applications. The Hi-00 is designed for in-line repair using quick change trim. Up to Severe All Classes Class V Linear Warranty Each DFT Inc. product is warranted against defects in material and workmanship for a period of one year after being placed in service, but not exceeding 8 months after shipment, when these products are properly installed, maintained and used within the service and temperature and pressure ranges for which they were designed and manufactured, and provided they have not been subject to accident, negligence, alteration, abuse, misuse or the like. This warranty extends to the first purchaser only. All defective material must be returned to the person from whom you purchased the product, transportation prepaid, free of any liens or encumbrances and if found to be defective will be repaired free of charge or replaced, at the warrantor s or DFT s option. FOR A COMPLETE UNDERSTANDING OF YOUR SOLE AND EXCLUSIVE LEGAL RIGHTS AND REMEDIES, AND THE PROCEDURES TO BE FOLLOWED WITH RESPECT TO ANY CLAIMS, PLEASE REFER TO THE LIMITATION AND DISCLAIMER OF WARRANTIES AND LIABILITIES, AVAILABLE ON REQUEST FROM DFT. THE EXPRESS WARRANTIES SET FORTH IN THAT DOCUMENT AND THE OBLIGATIONS AND LIABILITIES OF DFT THEREUNDER ARE EXCLUSIVE AND ARE EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND ALL OTHER OBLIGATIONS AND LIABILITIES OF DFT. IT IS UNDERSTOOD THAT THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION OF THE EXPRESS TERMS IN THE LIMITATION AND DISCLAIMER OF WARRANTIES AND LIABILITIES. UNDER NO CIRCUMSTANCES SHALL DFT BE LIABLE FOR ANY CONSEQUENTIAL, INCIDENTAL, ECONOMICAL, DIRECT, INDIRECT, GENERAL OR SPECIAL DAMAGES, EXPENSES OR LOSSES RELATING TO ANY BREACH OF WARRANTIES. It is expressly understood and agreed that unless a statement is specifically identified in this brochure as a warranty, the statements made herein relating to DFT s products are not express warranties, but are merely for informational, illustrative and identification purposes only. REPRESENTED BY DFT and HI-00 are registered trademarks of DFT Inc. LSV-00 and LSV-00 are trademarks of DFT Inc. All other trademarks are the properties of their respective owners and are used for purposes of identification only. Printed in U.S.A. Copyright 0, DFT Inc., All Rights Reserved LSV-00 Rev. 00 8