{"product_id":"18-fvdp-xwb-double-arm-float-valve-with-pivot-extra-weighted-ball-inline","title":"18\" FVDP-XWB Double Arm Float Valve with Pivot \u0026Extra Weighted Ball - Inline","description":"\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"markdown markdown-main-panel md-content enable-luminous-fast-follows enable-updated-hr-color stronger tutor-markdown-rendering\" id=\"model-response-message-contentr_6841141dc0a68efd\" aria-busy=\"false\" aria-live=\"polite\" dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"0\" class=\"first-token\"\u003e\u003cspan class=\"\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"4\"\u003e18\" FVDP-XWB Double Arm Float Valve with Pivot \u0026amp; Extra Weighted Ball – Inline\u003c\/b\u003e\u003cspan\u003e (catalog part number \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"103\"\u003e18FVDP-XWB-IL\u003c\/b\u003e\u003cspan\u003e or \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"120\"\u003e18FVDP-XWB\u003c\/b\u003e\u003cspan\u003e) is an ultra-heavy-duty,\u003c\/span\u003e\u003cspan\u003e balanced-leverage,\u003c\/span\u003e\u003cspan\u003e large-bore commercial mechanical water-level control valve engineered for pressurized or submerged inline piping inside mega-capacity aquatic surge tanks,\u003c\/span\u003e\u003cspan\u003e collector pits,\u003c\/span\u003e\u003cspan\u003e and balance tanks.\u003c\/span\u003e\u003cspan\u003e Constructed with a corrosion-proof Schedule 80 PVC inline body,\u003c\/span\u003e\u003cspan\u003e a symmetrical twin-arm clevis pivot linkage,\u003c\/span\u003e\u003cspan\u003e and an internally ballasted \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"502\"\u003eExtra Weighted Ball (\u003ccode data-path-to-node=\"0\" data-index-in-node=\"523\"\u003e-XWB\u003c\/code\u003e)\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e it mounts directly in-series within a closed or submerged 18-inch piping run to modulate ultra-high-volume flow without air entrainment while delivering balanced axial closing force and amplified downward opening torque to overcome line pressure and shaft seal friction across a 254.\u003c\/span\u003e\u003cspan\u003e5 sq.\u003c\/span\u003e\u003cspan\u003e in.\u003c\/span\u003e\u003cspan\u003e bore.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"horizontal-scroll-wrapper md-has-block-component\"\u003e\n\u003cdiv class=\"table-block-component\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003cdiv class=\"table-block has-export-button new-table-style is-at-scroll-start is-at-scroll-end\"\u003e\n\u003cdiv class=\"table-content md-content\" data-hveid=\"0\" data-ved=\"0CAAQ3ecQahgKEwjD4Jri4IKYAxUAAAAAHQAAAAAQ6wk\"\u003e\n\u003ctable data-path-to-node=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"1,0,0,0\"\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan data-path-to-node=\"1,0,1,0\"\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,1,0,0\"\u003e\u003cb data-path-to-node=\"1,1,0,0\" data-index-in-node=\"0\"\u003ePart \/ Model Reference\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,1,1,0\"\u003e\u003cb data-path-to-node=\"1,1,1,0\" data-index-in-node=\"0\"\u003e18FVDP-XWB\u003c\/b\u003e \/ \u003cb data-path-to-node=\"1,1,1,0\" data-index-in-node=\"13\"\u003e18FVDP-XWB-IL\u003c\/b\u003e (18\" Float Valve, Double-Arm, PVC Inline Body with Dual Pivot Linkage \u0026amp; Extra Weighted Ball)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,2,0,0\"\u003e\u003cb data-path-to-node=\"1,2,0,0\" data-index-in-node=\"0\"\u003eNominal Pipe Size\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,2,1,0\"\u003e18.0 in (450 mm \/ DN450)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,3,0,0\"\u003e\u003cb data-path-to-node=\"1,3,0,0\" data-index-in-node=\"0\"\u003eConnection Configuration\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,3,1,0\"\u003e\u003cb data-path-to-node=\"1,3,1,0\" data-index-in-node=\"0\"\u003eInline\u003c\/b\u003e (Inlet x Outlet): Female IPS Slip Sockets (Schedule 40\/80 PVC, 18.000\" OD pipe sizing) or ANSI Class 150 Flanged ends for continuous inline piping integration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,4,0,0\"\u003e\u003cb data-path-to-node=\"1,4,0,0\" data-index-in-node=\"0\"\u003eActuation \u0026amp; Pivot Mechanism\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,4,1,0\"\u003eArticulated Double-Arm Yoke Lever with Dual Clevis Pivot Hinges and Extra-Weighted Ballast Float (symmetrical dual-side extra-heavy-duty arms providing balanced axial torque; requires no electricity or compressed air)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,5,0,0\"\u003e\u003cb data-path-to-node=\"1,5,0,0\" data-index-in-node=\"0\"\u003eValve Body \u0026amp; Housing Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,5,1,0\"\u003eHeavy-duty machined Schedule 80 PVC (non-corrosive, UV- and chlorine-resistant)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,6,0,0\"\u003e\u003cb data-path-to-node=\"1,6,0,0\" data-index-in-node=\"0\"\u003ePivot Arms, Hinges \u0026amp; Fasteners\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,6,1,0\"\u003eDual extra-heavy-gauge 316 Marine-Grade Stainless Steel arms, structural cross-yoke, machined pivot clevises, hinge pins, and locknuts (eliminates torsional deflection and galvanic corrosion)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,7,0,0\"\u003e\u003cb data-path-to-node=\"1,7,0,0\" data-index-in-node=\"0\"\u003eFloat Ball \/ Ballast Element\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,7,1,0\"\u003e\u003cb data-path-to-node=\"1,7,1,0\" data-index-in-node=\"0\"\u003eExtra Weighted Ball (\u003ccode data-path-to-node=\"1,7,1,0\" data-index-in-node=\"21\"\u003eXWB\u003c\/code\u003e)\u003c\/b\u003e: Heavy-wall seamless HDPE, Polypropylene, or 316 Stainless Steel oversized spherical\/cylindrical float (typically 24\" to 30\" diameter, or high-buoyancy dual-float assembly) internally ballasted \/ weighted for high downward breakaway torque on an 18\" bore\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,8,0,0\"\u003e\u003cb data-path-to-node=\"1,8,0,0\" data-index-in-node=\"0\"\u003eInternal Seat \u0026amp; Disc Seal\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,8,1,0\"\u003eReplaceable thick-wall EPDM or Neoprene elastomer throttling disc \/ flapper with low-friction O-ring shaft seals\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,9,0,0\"\u003e\u003cb data-path-to-node=\"1,9,0,0\" data-index-in-node=\"0\"\u003eRecommended Flow Capacity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,9,1,0\"\u003eApprox. 4,500 to 9,000+ US gpm (1,022.1 to 2,044.1+ m³\/h) depending on available gravity or low-pressure line head\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,10,0,0\"\u003e\u003cb data-path-to-node=\"1,10,0,0\" data-index-in-node=\"0\"\u003eMaximum Operating Pressure\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,10,1,0\"\u003e15 to 25 psi (1.03 to 1.72 bar) — reinforced Schedule 80 PVC inline housing and dual-arm yoke withstand differential line pressures and downstream piping containment\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,11,0,0\"\u003e\u003cb data-path-to-node=\"1,11,0,0\" data-index-in-node=\"0\"\u003eOperating Temperature Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,11,1,0\"\u003e32°F to 120°F (0°C to 49°C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,12,0,0\"\u003e\u003cb data-path-to-node=\"1,12,0,0\" data-index-in-node=\"0\"\u003eLevel Adjustment Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,12,1,0\"\u003eIndexed dual-pivot clevises and adjustable float rod pitch allow precise field calibration of operating water elevation (+\/- 4 to 8 in)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,13,0,0\"\u003e\u003cb data-path-to-node=\"1,13,0,0\" data-index-in-node=\"0\"\u003eCompliance \/ Standards\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,13,1,0\"\u003eNSF\/ANSI Standard 50 compatible materials; meets Model Aquatic Health Code (MAHC) surge tank level control requirements\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"table-footer hide-on-print hide-from-message-actions\"\u003e\n\u003c!----\u003e\u003c!----\u003e\u003cbutton class=\"mdc-icon-button mat-mdc-icon-button mat-mdc-button-base mat-badge mat-unthemed mat-badge-overlap mat-badge-above mat-badge-after mat-badge-small mat-badge-hidden ng-star-inserted\" aria-label=\"More options\" aria-disabled=\"false\"\u003e\u003cspan class=\"mat-mdc-button-persistent-ripple mdc-icon-button__ripple\"\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003cspan class=\"mat-focus-indicator\"\u003e\u003c\/span\u003e\u003cspan class=\"mat-mdc-button-touch-target\"\u003e\u003c\/span\u003e\u003c\/button\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"2\"\u003eHydraulic \u0026amp; Mechanical Operating Details\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3,0,0\"\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"0\"\u003eNomenclature Breakdown:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"24\"\u003e18\u003c\/code\u003e\u003cspan\u003e = 18-inch nominal bore; \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"51\"\u003eFV\u003c\/code\u003e\u003cspan\u003e = Float Valve; \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"69\"\u003eD\u003c\/code\u003e\u003cspan\u003e = Double-Arm yoke lever mechanism; \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"106\"\u003eP\u003c\/code\u003e\u003cspan\u003e = PVC body construction with articulated dual pivots; \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"162\"\u003eXWB\u003c\/code\u003e\u003cspan\u003e = Extra Weighted Ball float assembly; \u003c\/span\u003e\u003ccode data-path-to-node=\"3,0,0\" data-index-in-node=\"204\"\u003eInline\u003c\/code\u003e\u003cspan\u003e = dual-ended (inlet\/outlet) inline housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3,1,0\"\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"0\"\u003eDual-Pivot Balance + Extra Weighted Ball (\u003ccode data-path-to-node=\"3,1,0\" data-index-in-node=\"42\"\u003eXWB\u003c\/code\u003e) Synergy on an 18\" Bore:\u003c\/b\u003e\u003cspan\u003e Scaling up to an 18-inch inline throttling disc (254.\u003c\/span\u003e\u003cspan\u003e5 sq.\u003c\/span\u003e\u003cspan\u003e in.\u003c\/span\u003e\u003cspan\u003e cross-sectional area—more than 26% larger than a 16\" bore and more than double a 12\" bore) generates immense hydraulic surface loading and substantial shaft O-ring breakaway resistance.\u003c\/span\u003e\u003cspan\u003e The internally ballasted \u003c\/span\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"345\"\u003eExtra Weighted Ball\u003c\/b\u003e\u003cspan\u003e supplies heavy downward gravitational deadweight to reliably crack the 18\" valve open when tank levels drop under differential line pressure,\u003c\/span\u003e\u003cspan\u003e while the twin \u003c\/span\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"522\"\u003eDouble-Arm\u003c\/b\u003e\u003cspan\u003e 316 stainless steel yoke and matched clevis pivots distribute upward buoyancy evenly across both sides of the valve shaft—eliminating side-loading,\u003c\/span\u003e\u003cspan\u003e torsional binding,\u003c\/span\u003e\u003cspan\u003e and uneven seat wear during shutoff.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3,2,0\"\u003e\u003cb data-path-to-node=\"3,2,0\" data-index-in-node=\"0\"\u003eInline Piping Integration:\u003c\/b\u003e\u003cspan\u003e Installed directly in-series along submerged main-drain modulation headers,\u003c\/span\u003e\u003cspan\u003e suction-equalizer lines,\u003c\/span\u003e\u003cspan\u003e or enclosed gravity transfer pipes inside maximum-capacity surge tanks (Olympic 50-meter competition complexes,\u003c\/span\u003e\u003cspan\u003e multi-pool municipal aquatic centers,\u003c\/span\u003e\u003cspan\u003e surf lagoons,\u003c\/span\u003e\u003cspan\u003e and major water park wave pools),\u003c\/span\u003e\u003cspan\u003e keeping ultra-high-volume flow contained within the header without splashing or air entrainment into pump suction manifolds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3,3,0\"\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"0\"\u003eShipping Weight:\u003c\/b\u003e\u003cspan\u003e Approx.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"25\"\u003e170 to 225 lbs (77.1 to 102.1 kg)\u003c\/b\u003e\u003cspan\u003e complete with 18\" Schedule 80 PVC inline valve body,\u003c\/span\u003e\u003cspan\u003e dual extra-heavy-duty 316 SS pivot arms and clevis assemblies,\u003c\/span\u003e\u003cspan\u003e cross-yoke linkage hardware,\u003c\/span\u003e\u003cspan\u003e and oversized extra-weighted ballast float.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/div\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68344169037935,"sku":"18FVDP-XMB","price":20627.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/mermade-filter-modulating-float-valve-474-474-desktop_7e675179-b37e-41da-ad99-600319885e45.jpg?v=1794499553","url":"https:\/\/commercialpoolandspasupplies.com\/products\/18-fvdp-xwb-double-arm-float-valve-with-pivot-extra-weighted-ball-inline","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}