{"product_id":"8-fvd-double-arm-float-valve-open-pipe","title":"8\" FVD Double Arm Float Valve - Open Pipe","description":"\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\"\u003e8\" FVD Double Arm Float Valve – Open Pipe\u003c\/b\u003e\u003cspan\u003e (also cataloged as \u003c\/span\u003e\u003cb data-path-to-node=\"0\" data-index-in-node=\"65\"\u003e8FVDP-OP\u003c\/b\u003e\u003cspan\u003e in standard commercial PVC aquatic flow-control lines) is a heavy-duty,\u003c\/span\u003e\u003cspan\u003e balanced-leverage large-bore mechanical water-level control valve engineered for high-volume commercial aquatic surge tanks,\u003c\/span\u003e\u003cspan\u003e collector pits,\u003c\/span\u003e\u003cspan\u003e balance tanks,\u003c\/span\u003e\u003cspan\u003e and open-channel gravity return systems.\u003c\/span\u003e\u003cspan\u003e Installed directly onto an open-ended 8-inch horizontal or downward-turned gravity return pipe stub inside a surge pit,\u003c\/span\u003e\u003cspan\u003e the dual-arm yoke architecture distributes massive closing forces symmetrically across the 8-inch valve disc—preventing side-loading,\u003c\/span\u003e\u003cspan\u003e torsional twisting,\u003c\/span\u003e\u003cspan\u003e and premature seat wear under elevated gravity static heads or turbulent surge conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\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\"\u003eEquipment \/ Part Reference\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,1,1,0\"\u003e8\" FVD Double Arm Float Valve – Open Pipe (\u003cb data-path-to-node=\"1,1,1,0\" data-index-in-node=\"43\"\u003e8FVDP-OP\u003c\/b\u003e)\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\"\u003e8.0 in (200 mm \/ DN200)\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\"\u003eInlet Connection Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,3,1,0\"\u003eOpen-Pipe Mount: Female Slip Socket (Schedule 40\/80 IPS, 8.625\" ID socket) or Slide-On Locking Hub for bare 8.0\" nominal (8.625\" actual OD) open pipe end\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\"\u003eDischarge Configuration\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,4,1,0\"\u003eUnobstructed Open-Discharge \/ Free-Fall Port (zero downstream backpressure)\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\"\u003eActuation Mechanism\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,5,1,0\"\u003eMechanical Double-Arm Yoke Lever Linkage (symmetrical dual-side arms providing balanced axial closing force; 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=\"1,6,0,0\"\u003e\u003cb data-path-to-node=\"1,6,0,0\" 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=\"1,6,1,0\"\u003eHeavy-duty machined Schedule 80 PVC, CPVC, or molded high-impact ABS \/ FRP composite\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\"\u003ePivot Arms \u0026amp; Linkage Hardware\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,7,1,0\"\u003eDual heavy-gauge 316 Marine-Grade Stainless Steel arms, structural cross-yoke, machined pivot clevises, hinge pins, and locknuts (eliminates torsional twisting and galvanic corrosion)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,8,0,0\"\u003e\u003cb data-path-to-node=\"1,8,0,0\" data-index-in-node=\"0\"\u003eFloat Ball \/ Buoyancy Element\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,8,1,0\"\u003eHeavy-wall seamless Polyethylene (HDPE), Polypropylene, or 316 Stainless Steel oversized spherical\/cylindrical float (typically 14\" to 16\" diameter)\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\"\u003eSeat \u0026amp; Disc Seal Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,9,1,0\"\u003eReplaceable thick-wall EPDM or Neoprene elastomer disc \/ flapper seal for drip-tight shutoff\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\"\u003eRecommended Gravity Flow Capacity\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,10,1,0\"\u003eApprox. 750 to 1,600 US gpm (170.3 to 363.4 m³\/h) at standard gravity head (1 to 4 ft water column)\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\"\u003eMaximum Operating Pressure\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,11,1,0\"\u003e15 to 25 psi (1.03 to 1.72 bar) — significantly higher shutoff stability and pressure tolerance than single-arm 8\" (\u003ccode data-path-to-node=\"1,11,1,0\" data-index-in-node=\"116\"\u003e8FVSP-OP\u003c\/code\u003e) designs due to balanced double-arm leverage\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\"\u003eOperating Temperature Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,12,1,0\"\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=\"1,13,0,0\"\u003e\u003cb data-path-to-node=\"1,13,0,0\" 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=\"1,13,1,0\"\u003eIndexed dual-pivot clevises and adjustable float rod pitch allow precise field calibration of shutoff 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=\"1,14,0,0\"\u003e\u003cb data-path-to-node=\"1,14,0,0\" data-index-in-node=\"0\"\u003eCompliance \/ Standards\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"1,14,1,0\"\u003eNSF\/ANSI Standard 50 compatible materials; meets Model Aquatic Health Code (MAHC) surge tank overflow protection guidelines\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\"\u003eBalanced Dual-Arm Seating on 8-Inch Bores:\u003c\/b\u003e\u003cspan\u003e Across a 50.\u003c\/span\u003e\u003cspan\u003e3 sq.\u003c\/span\u003e\u003cspan\u003e in.\u003c\/span\u003e\u003cspan\u003e orifice area,\u003c\/span\u003e\u003cspan\u003e even modest gravity head generates substantial hydraulic seating resistance.\u003c\/span\u003e\u003cspan\u003e The \u003c\/span\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"160\"\u003e8\" FVD Double Arm\u003c\/b\u003e\u003cspan\u003e straddles both sides of the valve housing with twin heavy-gauge 316 stainless steel arms tied into a rigid cross-yoke,\u003c\/span\u003e\u003cspan\u003e translating buoyancy from the 14\"–16\" float into uniform,\u003c\/span\u003e\u003cspan\u003e perpendicular closing force against the EPDM seat—preventing disc cocking,\u003c\/span\u003e\u003cspan\u003e chatter,\u003c\/span\u003e\u003cspan\u003e or uneven seal wear.\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\"\u003eOpen-Pipe Installation:\u003c\/b\u003e\u003cspan\u003e Built specifically for installations where the 8\" perimeter gutter or main-drain gravity line terminates cleanly inside the surge tank wall without a bolted ANSI flange.\u003c\/span\u003e\u003cspan\u003e The female PVC hub slips directly onto the 8\" pipe stub and is secured via PVC solvent cement or stainless steel mechanical locking screws.\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\"\u003eSurge \u0026amp; Turbulence Stability:\u003c\/b\u003e\u003cspan\u003e The twin-arm structural yoke resists lateral deflection caused by splashing,\u003c\/span\u003e\u003cspan\u003e wave action,\u003c\/span\u003e\u003cspan\u003e or cascading gutter discharge inside turbulent balance pits on Olympic 50-meter pools,\u003c\/span\u003e\u003cspan\u003e wave lagoons,\u003c\/span\u003e\u003cspan\u003e and water parks.\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\"\u003e38 to 52 lbs (17.2 to 23.6 kg)\u003c\/b\u003e\u003cspan\u003e complete with 8\" valve body,\u003c\/span\u003e\u003cspan\u003e dual heavy-duty 316 SS pivot arms,\u003c\/span\u003e\u003cspan\u003e cross-yoke linkage hardware,\u003c\/span\u003e\u003cspan\u003e and oversized float ball.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":68343931011183,"sku":"8FVD-OP","price":2914.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/415F32_AS01.jpg?v=1794498507","url":"https:\/\/commercialpoolandspasupplies.com\/products\/8-fvd-double-arm-float-valve-open-pipe","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}