{"id":12040,"date":"2026-11-10T04:01:44","date_gmt":"2026-11-10T04:01:44","guid":{"rendered":"https:\/\/www.fleyendavalve.com\/?page_id=12040"},"modified":"2026-11-10T05:54:21","modified_gmt":"2026-11-10T05:54:21","slug":"ptfe-pfa-lined-electric-actuated-ball-valve-2","status":"publish","type":"page","link":"https:\/\/www.fleyendavalve.com\/ru\/ptfe-pfa-lined-electric-actuated-ball-valve-2\/","title":{"rendered":"PFA PTFE Lined Electric Actuated Ball Valve | FLE-Q-F"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"12040\" class=\"elementor elementor-12040\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c9e77bb e-con-full e-flex wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no wpr-column-slider-no wpr-equal-height-no e-con e-parent\" data-id=\"c9e77bb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e8f5974 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var(--line)}.fyqf .feature-grid,.fyqf .apps,.fyqf .steps{grid-template-columns:1fr}.fyqf .feature:nth-child(n){padding:19px 0;border-right:0}.fyqf .app{min-height:245px}.fyqf .compare{grid-template-columns:1fr}.fyqf .compare>div{padding:20px 0}.fyqf .compare>div+div{padding-left:0;border-left:0;border-top:1px solid rgba(255,255,255,.3)}.fyqf .step:nth-child(n){padding:16px 0;border-right:0;border-bottom:1px solid var(--line)}.fyqf .dim-table{overflow-x:auto}.fyqf .dim-intro{align-items:start;flex-direction:column;gap:4px}.fyqf .dim-points{grid-template-columns:1fr 1fr}.fyqf .cta-row{display:block}.fyqf .cta-row .btn{margin-top:20px}}\r\n<\/style>\r\n\r\n<div class=\"fyqf\">\r\n  <section class=\"hero\">\r\n    <div class=\"wrap\">\r\n      <div class=\"hero-grid\">\r\n        <div>\r\n          <div class=\"eyebrow\">FLE-Q-F \u00b7 Corrosive Media Flow Control<\/div>\r\n          <h1>PTFE\/PFA-Lined Electric Actuated Ball Valve<\/h1>\r\n          <p class=\"intro\">The FLE-Q-F fluoropolymer-lined electric ball valve is designed for automated isolation of corrosive process media. A PTFE or PFA lining separates the process fluid from the metallic valve body, helping protect wetted surfaces in chemical transfer, acid and alkali handling, and chemical wastewater systems. The electric quarter-turn actuator supports remote on\/off operation and selected modulating control configurations.<\/p>\r\n          <div class=\"spec-strip\">\r\n            <div class=\"spec\"><b>DN15\u2013DN300*<\/b><span>Nominal size range<\/span><\/div>\r\n            <div class=\"spec\"><b>PN10\u2013PN16*<\/b><span>Pressure class<\/span><\/div>\r\n            <div class=\"spec\"><b>\u221220 to +180\u00b0C*<\/b><span>Temperature range<\/span><\/div>\r\n            <div class=\"spec\"><b>PTFE \/ PFA<\/b><span>Lining options<\/span><\/div>\r\n          <\/div>\r\n          <div class=\"actions\">\r\n            <a class=\"btn\" href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20PTFE%2FPFA-Lined%20Electric%20Ball%20Valve%20Inquiry\">Request a Technical Quote<\/a>\r\n            <a class=\"btn outline\" href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Technical%20Datasheet%20Request\">Request Datasheet<\/a>\r\n          <\/div>\r\n          <div class=\"mail-line\">Technical enquiries: <a href=\"mailto:inquiry@fleyendaflow.com\">inquiry@fleyendaflow.com<\/a><\/div>\r\n        <\/div>\r\n        <div class=\"hero-img\">\r\n          \r\n          <img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/FLE-Q-F-PTFEPFA-Lined-Electric-Ball-Valve-1.webp\" alt=\"FLE-Q-F PTFE PFA fluoropolymer lined electric actuated ball valve\" fetchpriority=\"high\">\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section\">\r\n    <div class=\"wrap\">\r\n      <div class=\"head-row\">\r\n        <div><div class=\"eyebrow\">Engineered for corrosive service<\/div><h2>Protect the Flow Path from Aggressive Process Media<\/h2><\/div>\r\n        <p>In corrosive-duty pipelines, the wetted material is a critical part of valve selection. FLE-Q-F uses a fluoropolymer-lined flow path to reduce direct contact between the process medium and the metallic pressure-containing body. PTFE and PFA lining options are selected according to the chemical medium and operating conditions.<\/p>\r\n      <\/div>\r\n      <div class=\"feature-grid\">\r\n        <div class=\"feature\"><div class=\"num\">01 \/ LINING PROTECTION<\/div><h3>PTFE or PFA Lining<\/h3><p>Fluoropolymer lining options provide broad chemical resistance for compatible acids, alkalis, solvents and corrosive wastewater. Select the grade against the actual chemical concentration and operating temperature.<\/p><\/div>\r\n        <div class=\"feature\"><div class=\"num\">02 \/ AUTOMATION<\/div><h3>Electric Quarter-Turn Actuation<\/h3><p>Remote 0\u201390\u00b0 operation supports automated isolation from a PLC, relay panel or plant control system. On\/off and selected regulating configurations are available.<\/p><\/div>\r\n        <div class=\"feature\"><div class=\"num\">03 \/ BODY OPTIONS<\/div><h3>Metallic Pressure Body<\/h3><p>Carbon steel or stainless-steel body options provide the structural base, while the fluoropolymer lining protects the wetted flow surfaces.<\/p><\/div>\r\n        <div class=\"feature\"><div class=\"num\">04 \/ SEALING<\/div><h3>Corrosion-Service Seat System<\/h3><p>PTFE-based seat and sealing options are selected to match the medium and temperature range, helping maintain shutoff performance in compatible service.<\/p><\/div>\r\n        <div class=\"feature\"><div class=\"num\">05 \/ CONTROL<\/div><h3>Flexible Actuator Configuration<\/h3><p>Voltage, control circuit, position feedback, manual override and selected fail-safe functions can be specified according to the automation requirements.<\/p><\/div>\r\n        <div class=\"feature\"><div class=\"num\">06 \/ INSTALLATION<\/div><h3>Multiple Flange Standards<\/h3><p>Flanged connection options can be configured to applicable GB, ANSI, DIN or JIS project requirements. Confirm facing, drilling and pressure class before ordering.<\/p><\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section alt\">\r\n    <div class=\"wrap two-col\">\r\n      <div>\r\n        <div class=\"eyebrow\">Lining material selection<\/div>\r\n        <h2>PTFE vs PFA: Select the Lining for Your Process Conditions<\/h2>\r\n        <p>Both PTFE and PFA are fluoropolymers used in corrosive-fluid service. Selection depends on chemical compatibility, operating temperature, pressure and the required service life.<\/p>\r\n        <ul class=\"clean-list\">\r\n          <li><strong>PTFE lining:<\/strong> broad chemical resistance for many strong acids, alkalis and solvents.<\/li>\r\n          <li><strong>PFA lining:<\/strong> considered for demanding corrosive duties where lining process, permeability and temperature requirements call for it.<\/li>\r\n          <li><strong>Seat and seal compatibility:<\/strong> check all wetted components, not only the body lining.<\/li>\r\n          <li><strong>Operating envelope:<\/strong> assess pressure and temperature together; do not assume the maximum values apply simultaneously.<\/li>\r\n          <li><strong>Vacuum and cycling:<\/strong> confirm suitability for vacuum, thermal shock and frequent operating cycles.<\/li>\r\n        <\/ul>\r\n        <div class=\"mail-line\">Not sure which lining is suitable? <a href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Lining%20Material%20Selection\">Send your chemical and operating conditions<\/a>.<\/div>\r\n      <\/div>\r\n      <div class=\"visual\">\r\n        <img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/ImageForArticle_765_1752137688324333-1.webp\" alt=\"Industrial chemical process equipment and piping\" loading=\"lazy\">\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section\">\r\n    <div class=\"wrap\">\r\n      <div class=\"head-row\">\r\n        <div><div class=\"eyebrow\">Technical data<\/div><h2>FLE-Q-F Technical Specifications<\/h2><\/div>\r\n        <p>Available configurations cover a range of sizes, pressure classes, lining materials and electric actuator options for corrosive-fluid service.<\/p>\r\n      <\/div>\r\n      <div class=\"table-wrap\">\r\n        <table>\r\n          <tbody>\r\n            <tr><th>Parameter<\/th><th>Specification<\/th><\/tr>\r\n            <tr><td>Model<\/td><td>FLE-Q-F<\/td><\/tr>\r\n            <tr><td>Valve type<\/td><td>2-way PTFE \/ PFA fluoropolymer-lined electric ball valve<\/td><\/tr>\r\n            <tr><td>Nominal size<\/td><td>DN15\u2013DN300 (\u00bd\u2033\u201312\u2033), subject to size and lining configuration<\/td><\/tr>\r\n            <tr><td>Working pressure<\/td><td>PN10\u2013PN16 (up to 1.6 MPa \/ 150 PSI), subject to size<\/td><\/tr>\r\n            <tr><td>Working temperature<\/td><td>\u221220\u00b0C to +180\u00b0C, depending on lining, seat and medium<\/td><\/tr>\r\n            <tr><td>Body material<\/td><td>Carbon steel \/ stainless steel (WCB, CF8, CF8M)<\/td><\/tr>\r\n            <tr><td>Ball \/ wetted material<\/td><td>Stainless steel grades and fluoropolymer-lined wetted surfaces, according to construction<\/td><\/tr>\r\n            <tr><td>Lining options<\/td><td>PTFE \/ PFA; other fluoropolymer options subject to confirmation<\/td><\/tr>\r\n            <tr><td>Seat \/ sealing options<\/td><td>PTFE, Nylon or PPL options according to configuration<\/td><\/tr>\r\n            <tr><td>Connection<\/td><td>Flanged; ANSI, DIN, JIS or GB standard options<\/td><\/tr>\r\n            <tr><td>Applicable media<\/td><td>Compatible acids, alkalis, chlorine-containing media, solvents and chemical wastewater<\/td><\/tr>\r\n            <tr><td>Actuator type<\/td><td>Electric quarter-turn actuator<\/td><\/tr>\r\n            <tr><td>Voltage options<\/td><td>DC24V, AC24V, AC110V, AC220V, AC380V<\/td><\/tr>\r\n            <tr><td>Control options<\/td><td>ON\/OFF, regulating, intelligent<\/td><\/tr>\r\n            <tr><td>Design references<\/td><td>GB\/T 12237, ISO 5211, ASME B16.34, as applicable<\/td><\/tr>\r\n            <tr><td>Testing references<\/td><td>GB\/T 13927 \/ API 598, according to product configuration<\/td><\/tr>\r\n            <tr><td>Actuator protection<\/td><td>IP67 standard configuration; IP68 optional<\/td><\/tr>\r\n            <tr><td>Explosion-proof option<\/td><td>Selected Ex d II BT4 \/ CT4 \/ CT6 Gb configurations<\/td><\/tr>\r\n            <tr><td>Fail-safe option<\/td><td>Fail-open, fail-closed or no-reset, subject to actuator configuration<\/td><\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n      <div class=\"mail-line\">Need a size-specific rating or material confirmation? <a href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Technical%20Specification%20Review\">Request a technical review<\/a>.<\/div>\r\n\r\n      <div class=\"actuator-table\">\r\n        <div class=\"dim-intro\"><h3>Electric Actuator Model and Torque Options<\/h3><span>Quarter-turn \u00b7 0\u201390\u00b0 adjustable<\/span><\/div>\r\n        <div class=\"table-wrap\">\r\n          <table>\r\n            <thead><tr><th>Actuator model<\/th><th>Standard time \/ torque<\/th><th>Optional time \/ torque<\/th><th>Weight<\/th><\/tr><\/thead>\r\n            <tbody>\r\n              <tr><td>FLE-105<\/td><td>25 s \/ 50 Nm<\/td><td>4 s \/ 20 Nm; 10 s \/ 30 Nm<\/td><td>2.2 kg<\/td><\/tr>\r\n              <tr><td>FLE-110<\/td><td>25 s \/ 100 Nm<\/td><td>15 s \/ 50 Nm<\/td><td>5.1 kg<\/td><\/tr>\r\n              <tr><td>FLE-116<\/td><td>25 s \/ 160 Nm<\/td><td>15 s \/ 80 Nm<\/td><td>5.1 kg<\/td><\/tr>\r\n              <tr><td>FLE-120<\/td><td>25 s \/ 200 Nm<\/td><td>15 s \/ 100 Nm<\/td><td>7.5 kg<\/td><\/tr>\r\n              <tr><td>FLE-140<\/td><td>25 s \/ 400 Nm<\/td><td>15 s \/ 200 Nm<\/td><td>7.5 kg<\/td><\/tr>\r\n              <tr><td>FLE-160<\/td><td>25 s \/ 600 Nm<\/td><td>15 s \/ 300 Nm<\/td><td>8.1 kg<\/td><\/tr>\r\n              <tr><td>FLE-1100<\/td><td>50 s \/ 1000 Nm<\/td><td>25 s \/ 500 Nm<\/td><td>12.7 kg<\/td><\/tr>\r\n              <tr><td>FLE-1200<\/td><td>50 s \/ 2000 Nm<\/td><td>25 s \/ 1000 Nm<\/td><td>12.7 kg<\/td><\/tr>\r\n            <\/tbody>\r\n          <\/table>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section alt\">\r\n    <div class=\"wrap two-col\">\r\n      <div>\r\n        <div class=\"eyebrow\">Flanged connection dimensions<\/div>\r\n        <h2>Flange Size and Installation Reference<\/h2>\r\n        <p>Flange dimensions are provided for pipeline matching and installation planning. Flange drilling and pressure class are available according to the selected connection standard.<\/p>\r\n        <div class=\"mail-line\">Need a certified dimensional drawing? <a href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Flange%20Dimension%20Drawing\">Request the FLE-Q-F outline drawing<\/a>.<\/div>\r\n      <\/div>\r\n      <div class=\"dim-sketch\">\r\n        \r\n        <img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/FLE-Q-F-PTFEPFA-Lined-Electric-Ball-Valve-2.webp\" alt=\"FLE-Q-F PTFE lined electric ball valve flange outline drawing\" loading=\"lazy\">\r\n      <\/div>\r\n    <\/div>\r\n    <div class=\"wrap\">\r\n      <div class=\"dim-intro\"><h3>Main Outline and Connecting Flange Size<\/h3><span>Dimensions: mm<\/span><\/div>\r\n      <div class=\"table-wrap dim-table\">\r\n        <table>\r\n          <thead>\r\n            <tr><th>DN<\/th><th>DN15<\/th><th>DN20<\/th><th>DN25<\/th><th>DN32<\/th><th>DN40<\/th><th>DN50<\/th><th>DN65<\/th><th>DN80<\/th><th>DN100<\/th><th>DN125<\/th><th>DN150<\/th><th>DN200<\/th><\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr><td>Inch<\/td><td>1\/2\u2033<\/td><td>3\/4\u2033<\/td><td>1\u2033<\/td><td>1-1\/4\u2033<\/td><td>1-1\/2\u2033<\/td><td>2\u2033<\/td><td>2-1\/2\u2033<\/td><td>3\u2033<\/td><td>4\u2033<\/td><td>5\u2033<\/td><td>6\u2033<\/td><td>8\u2033<\/td><\/tr>\r\n            <tr><td>D3<\/td><td>15<\/td><td>20<\/td><td>25<\/td><td>30<\/td><td>40<\/td><td>50<\/td><td>65<\/td><td>80<\/td><td>100<\/td><td>125<\/td><td>150<\/td><td>200<\/td><\/tr>\r\n            <tr><td>D2<\/td><td>45<\/td><td>55<\/td><td>65<\/td><td>78<\/td><td>85<\/td><td>100<\/td><td>120<\/td><td>135<\/td><td>155<\/td><td>185<\/td><td>210<\/td><td>265<\/td><\/tr>\r\n            <tr><td>D1<\/td><td>65<\/td><td>75<\/td><td>85<\/td><td>100<\/td><td>110<\/td><td>125<\/td><td>145<\/td><td>160<\/td><td>180<\/td><td>210<\/td><td>240<\/td><td>295<\/td><\/tr>\r\n            <tr><td>D<\/td><td>95<\/td><td>105<\/td><td>115<\/td><td>135<\/td><td>145<\/td><td>160<\/td><td>180<\/td><td>195<\/td><td>215<\/td><td>245<\/td><td>280<\/td><td>335<\/td><\/tr>\r\n            <tr><td>b<\/td><td>14<\/td><td>16<\/td><td>16<\/td><td>18<\/td><td>18<\/td><td>20<\/td><td>20<\/td><td>22<\/td><td>22<\/td><td>24<\/td><td>24<\/td><td>26<\/td><\/tr>\r\n            <tr><td>L<\/td><td>140<\/td><td>140<\/td><td>150<\/td><td>165<\/td><td>180<\/td><td>200<\/td><td>220<\/td><td>250<\/td><td>280<\/td><td>320<\/td><td>360<\/td><td>400<\/td><\/tr>\r\n            <tr><td>n\u2013\u03c6d<\/td><td>4\u2013\u03c614<\/td><td>4\u2013\u03c614<\/td><td>4\u2013\u03c614<\/td><td>4\u2013\u03c618<\/td><td>4\u2013\u03c618<\/td><td>4\u2013\u03c618<\/td><td>4\u2013\u03c618<\/td><td>4\/8\u2013\u03c618<\/td><td>8\u2013\u03c618<\/td><td>8\u2013\u03c618<\/td><td>8\u2013\u03c623<\/td><td>12\u2013\u03c623<\/td><\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n      \r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section dark\">\r\n    <div class=\"wrap\">\r\n      <div class=\"eyebrow\" style=\"color:#dce7ff\">Corrosive process applications<\/div>\r\n      <h2>Automated Isolation for Chemical and Industrial Fluid Systems<\/h2>\r\n      <p>FLE-Q-F is intended for process lines where the chemical resistance of the wetted flow path is a primary selection factor. Confirm chemical concentration, temperature, pressure and cleaning conditions before specifying the lining.<\/p>\r\n      <div class=\"compare\">\r\n        <div><h3>Acid & Alkali Transfer<\/h3><p>Isolation in compatible acid, alkali and chemical dosing lines.<\/p><ul><li>Sulfuric and phosphoric acid duties, subject to concentration and temperature review<\/li><li>Alkali and salt solutions<\/li><li>Corrosive chemical storage and transfer skids<\/li><\/ul><\/div>\r\n        <div><h3>Chlorine & Chemical Wastewater<\/h3><p>Remote shutoff for selected chlorine-containing media and corrosive wastewater services.<\/p><ul><li>Chlorine-related process lines, subject to compatibility review<\/li><li>Chemical wastewater collection and treatment<\/li><li>Corrosive process utility isolation<\/li><\/ul><\/div>\r\n      <\/div>\r\n      <div class=\"actions\"><a class=\"btn\" style=\"background:#fff;color:#133F98!important\" href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Corrosive%20Media%20Application%20Review\">Discuss Your Chemical Service<\/a><\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section\">\r\n    <div class=\"wrap\">\r\n      <div class=\"head-row\">\r\n        <div><div class=\"eyebrow\">Typical industries<\/div><h2>Applications of PTFE\/PFA-Lined Electric Ball Valves<\/h2><\/div>\r\n        <p>Fluoropolymer-lined valves are selected for compatible corrosive duties across chemical production, pharmaceutical processing, petrochemical operations and environmental treatment systems.<\/p>\r\n      <\/div>\r\n      <div class=\"apps\">\r\n        <div class=\"app\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/NEPSI-Chemical-Industries-Page-Photo-1000x600-1.webp\" alt=\"Chemical manufacturing plant process equipment\" loading=\"lazy\"><div class=\"app-copy\"><h3>Chemical Manufacturing<\/h3><p>Acid, alkali and corrosive reagent transfer.<\/p><\/div><\/div>\r\n        <div class=\"app\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/Shutterstock_2399334555.webp\" alt=\"Industrial pharmaceutical production facility\" loading=\"lazy\"><div class=\"app-copy\"><h3>Pharmaceutical Processing<\/h3><p>Compatible chemical and process utility lines.<\/p><\/div><\/div>\r\n        <div class=\"app\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/08\/iir_industry_news_chemical_processing_article_thumbnail_07.webp\" alt=\"Petrochemical industrial plant\" loading=\"lazy\"><div class=\"app-copy\"><h3>Petrochemical Plants<\/h3><p>Corrosive media isolation in process systems.<\/p><\/div><\/div>\r\n        <div class=\"app\"><img decoding=\"async\" src=\"https:\/\/www.fleyendavalve.com\/wp-content\/uploads\/2026\/11\/images-8.webp\" alt=\"Wastewater treatment industrial facility\" loading=\"lazy\"><div class=\"app-copy\"><h3>Chemical Wastewater<\/h3><p>Automated isolation in corrosive treatment lines.<\/p><\/div><\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  \r\n\r\n  <section class=\"section\">\r\n    <div class=\"wrap\">\r\n      <div class=\"head-row\">\r\n        <div><div class=\"eyebrow\">Engineering selection<\/div><h2>Information Required for Correct Valve Selection<\/h2><\/div>\r\n        <p>Fluoropolymer-lined valves need a process-specific review. Sharing the following information helps match the lining, pressure body, seat system and electric actuator to the application.<\/p>\r\n      <\/div>\r\n      <div class=\"steps\">\r\n        <div class=\"step\"><b>01 \/ CHEMICAL MEDIUM<\/b><p>Fluid name, concentration, impurities and compatibility requirements.<\/p><\/div>\r\n        <div class=\"step\"><b>02 \/ OPERATING CONDITIONS<\/b><p>Normal and peak pressure, temperature, vacuum and cycling frequency.<\/p><\/div>\r\n        <div class=\"step\"><b>03 \/ PIPELINE DETAILS<\/b><p>DN size, flange standard, pressure class, facing and installation orientation.<\/p><\/div>\r\n        <div class=\"step\"><b>04 \/ ACTUATOR CONTROL<\/b><p>Voltage, on\/off or modulating signal, feedback, fail position and hazardous-area needs.<\/p><\/div>\r\n      <\/div>\r\n      <div class=\"actions\"><a class=\"btn\" href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20Valve%20Selection%20Request\">Send Process Specifications<\/a><\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"section\">\r\n    <div class=\"wrap\">\r\n      <div class=\"eyebrow\">Frequently asked questions<\/div>\r\n      <h2>PTFE\/PFA-Lined Electric Ball Valve FAQs<\/h2>\r\n      <details><summary>What is a PTFE-lined electric ball valve used for?<\/summary><p>It is used for automated isolation of compatible corrosive fluids in chemical processing, acid and alkali transfer, petrochemical systems and chemical wastewater treatment. The fluoropolymer lining protects the wetted flow path from direct contact with the metallic body.<\/p><\/details>\r\n      <details><summary>What is the difference between PTFE and PFA lining?<\/summary><p>Both are fluoropolymers with broad chemical resistance. Their suitability differs according to temperature, lining process, permeation, mechanical requirements and the specific chemical. The choice should be based on the actual medium and operating envelope.<\/p><\/details>\r\n      <details><summary>Can the FLE-Q-F valve handle sulfuric acid or hydrochloric acid?<\/summary><p>Suitability depends on acid concentration, temperature, pressure and the selected lining and seat materials. Provide the chemical concentration and operating conditions for a compatibility review before ordering.<\/p><\/details>\r\n      <details><summary>What pressure and temperature range is available?<\/summary><p>The published product configuration lists PN10\u2013PN16 and a temperature range up to +180\u00b0C, depending on lining, seat material, size and medium. These maximum values should not be assumed to apply simultaneously; confirm the size-specific rating.<\/p><\/details>\r\n      <details><summary>What is the difference between a fluorine-lined and a standard stainless-steel ball valve?<\/summary><p>A standard stainless-steel ball valve exposes its selected metal wetted surfaces to the process medium. A fluoropolymer-lined design adds a chemical-resistant lining between the medium and the metallic body, making it suitable for selected corrosive services where bare metal may not be compatible.<\/p><\/details>\r\n      <details><summary>Can the electric actuator support modulating control?<\/summary><p>Selected actuator configurations support regulating control, including compatible 4\u201320 mA or 0\u201310 V control circuits. Confirm the required signal, feedback, operating time and torque with the actuator configuration.<\/p><\/details>\r\n      <details><summary>What information should I provide for a quotation?<\/summary><p>Provide valve size, flange standard, medium and concentration, operating pressure and temperature, lining preference, actuator voltage, control mode, quantity and any hazardous-area requirement. A process datasheet or P&amp;ID is useful for engineering review.<\/p><\/details>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"bottom-cta\">\r\n    <div class=\"wrap cta-row\">\r\n      <div><h2>Need a Corrosion-Resistant Electric Ball Valve?<\/h2><p>Send your chemical medium and operating conditions for FLE-Q-F configuration review.<\/p><div class=\"mail-line\">Email: <a href=\"mailto:inquiry@fleyendaflow.com\">inquiry@fleyendaflow.com<\/a><\/div><\/div>\r\n      <a class=\"btn\" href=\"mailto:inquiry@fleyendaflow.com?subject=FLE-Q-F%20PTFE%2FPFA%20Lined%20Electric%20Ball%20Valve\">Contact Fleyenda<\/a>\r\n    <\/div>\r\n  <\/section>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>FLE-Q-F \u00b7 Corrosive Media Flow Control PTFE\/PFA-Lined Electric Actuated Ball Valve The FLE-Q-F fluoropolymer-lined electric ball valve is designed for automated isolation of corrosive process media. A PTFE or PFA lining separates the process fluid from the metallic valve body, helping protect wetted surfaces in chemical transfer, acid and alkali handling, and chemical wastewater systems. The electric quarter-turn actuator supports remote on\/off operation and selected modulating control configurations. DN15\u2013DN300*Nominal size range PN10\u2013PN16*Pressure class \u221220 to +180\u00b0C*Temperature range PTFE \/ PFALining options Request a Technical Quote Request Datasheet Technical enquiries: inquiry@fleyendaflow.com Engineered for corrosive service Protect the Flow Path from Aggressive Process Media In corrosive-duty pipelines, the wetted material is a critical part of valve selection. FLE-Q-F uses a fluoropolymer-lined flow path to reduce direct contact between the process medium and the metallic pressure-containing body. PTFE and PFA lining options are selected according to the chemical medium and operating conditions. 01 \/ LINING PROTECTION PTFE or PFA Lining Fluoropolymer lining options provide broad chemical resistance for compatible acids, alkalis, solvents and corrosive wastewater. Select the grade against the actual chemical concentration and operating temperature. 02 \/ AUTOMATION Electric Quarter-Turn Actuation Remote 0\u201390\u00b0 operation supports automated isolation from a PLC, relay panel or plant control system. On\/off and selected regulating configurations are available. 03 \/ BODY OPTIONS Metallic Pressure Body Carbon steel or stainless-steel body options provide the structural base, while the fluoropolymer lining protects the wetted flow surfaces. 04 \/ SEALING Corrosion-Service Seat System PTFE-based seat and sealing options are selected to match the medium and temperature range, helping maintain shutoff performance in compatible service. 05 \/ CONTROL Flexible Actuator Configuration Voltage, control circuit, position feedback, manual override and selected fail-safe functions can be specified according to the automation requirements. 06 \/ INSTALLATION Multiple Flange Standards Flanged connection options can be configured to applicable GB, ANSI, DIN or JIS project requirements. Confirm facing, drilling and pressure class before ordering. Lining material selection PTFE vs PFA: Select the Lining for Your Process Conditions Both PTFE and PFA are fluoropolymers used in corrosive-fluid service. Selection depends on chemical compatibility, operating temperature, pressure and the required service life. PTFE lining: broad chemical resistance for many strong acids, alkalis and solvents. PFA lining: considered for demanding corrosive duties where lining process, permeability and temperature requirements call for it. Seat and seal compatibility: check all wetted components, not only the body lining. Operating envelope: assess pressure and temperature together; do not assume the maximum values apply simultaneously. Vacuum and cycling: confirm suitability for vacuum, thermal shock and frequent operating cycles. Not sure which lining is suitable? Send your chemical and operating conditions. Technical data FLE-Q-F Technical Specifications Available configurations cover a range of sizes, pressure classes, lining materials and electric actuator options for corrosive-fluid service. Parameter Specification Model FLE-Q-F Valve type 2-way PTFE \/ PFA fluoropolymer-lined electric ball valve Nominal size DN15\u2013DN300 (\u00bd\u2033\u201312\u2033), subject to size and lining configuration Working pressure PN10\u2013PN16 (up to 1.6 MPa \/ 150 PSI), subject to size Working temperature \u221220\u00b0C to +180\u00b0C, depending on lining, seat and medium Body material Carbon steel \/ stainless steel (WCB, CF8, CF8M) Ball \/ wetted material Stainless steel grades and fluoropolymer-lined wetted surfaces, according to construction Lining options PTFE \/ PFA; other fluoropolymer options subject to confirmation Seat \/ sealing options PTFE, Nylon or PPL options according to configuration Connection Flanged; ANSI, DIN, JIS or GB standard options Applicable media Compatible acids, alkalis, chlorine-containing media, solvents and chemical wastewater Actuator type Electric quarter-turn actuator Voltage options DC24V, AC24V, AC110V, AC220V, AC380V Control options ON\/OFF, regulating, intelligent Design references GB\/T 12237, ISO 5211, ASME B16.34, as applicable Testing references GB\/T 13927 \/ API 598, according to product configuration Actuator protection IP67 standard configuration; IP68 optional Explosion-proof option Selected Ex d II BT4 \/ CT4 \/ CT6 Gb configurations Fail-safe option Fail-open, fail-closed or no-reset, subject to actuator configuration Need a size-specific rating or material confirmation? Request a technical review. Electric Actuator Model and Torque Options Quarter-turn \u00b7 0\u201390\u00b0 adjustable Actuator model Standard time \/ torque Optional time \/ torque Weight FLE-105 25 s \/ 50 Nm 4 s \/ 20 Nm; 10 s \/ 30 Nm 2.2 kg FLE-110 25 s \/ 100 Nm 15 s \/ 50 Nm 5.1 kg FLE-116 25 s \/ 160 Nm 15 s \/ 80 Nm 5.1 kg FLE-120 25 s \/ 200 Nm 15 s \/ 100 Nm 7.5 kg FLE-140 25 s \/ 400 Nm 15 s \/ 200 Nm 7.5 kg FLE-160 25 s \/ 600 Nm 15 s \/ 300 Nm 8.1 kg FLE-1100 50 s \/ 1000 Nm 25 s \/ 500 Nm 12.7 kg FLE-1200 50 s \/ 2000 Nm 25 s \/ 1000 Nm 12.7 kg Flanged connection dimensions Flange Size and Installation Reference Flange dimensions are provided for pipeline matching and installation planning. Flange drilling and pressure class are available according to the selected connection standard. Need a certified dimensional drawing? Request the FLE-Q-F outline drawing. Main Outline and Connecting Flange Size Dimensions: mm DN DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN125 DN150 DN200 Inch 1\/2\u2033 3\/4\u2033 1\u2033 1-1\/4\u2033 1-1\/2\u2033 2\u2033 2-1\/2\u2033 3\u2033 4\u2033 5\u2033 6\u2033 8\u2033 D3 15 20 25 30 40 50 65 80 100 125 150 200 D2 45 55 65 78 85 100 120 135 155 185 210 265 D1 65 75 85 100 110 125 145 160 180 210 240 295 D 95 105 115 135 145 160 180 195 215 245 280 335 b 14 16 16 18 18 20 20 22 22 24 24 26 L 140 140 150 165 180 200 220 250 280 320 360 400 n\u2013\u03c6d 4\u2013\u03c614 4\u2013\u03c614 4\u2013\u03c614 4\u2013\u03c618 4\u2013\u03c618 4\u2013\u03c618 4\u2013\u03c618 4\/8\u2013\u03c618 8\u2013\u03c618 8\u2013\u03c618 8\u2013\u03c623 12\u2013\u03c623 Corrosive process applications Automated Isolation for Chemical and Industrial Fluid Systems FLE-Q-F is intended for process lines where the chemical resistance of the wetted flow path is a primary selection factor. Confirm chemical concentration, temperature, pressure and cleaning conditions before specifying the lining. 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