{"product_id":"upvc-water-tank-drain-valve-kit-g12-to-g2-bulkhead-assembly-with-ball-valve-hose-barb-clamp-set-atradesen","title":"UPVC Water Tank Drain Valve Kit  G12 to G2 Bulkhead Assembly with Ball Valve \u0026 Hose Barb Clamp Set - Atradesen","description":"\u003ch2\u003ePremium UPVC Water Tank Drain Valve Assembly Kits\u003c\/h2\u003e\n\u003cp\u003e\n  Establish a secure, high-flow discharge system on your water towers, buckets, ponds, and fish tanks with our premium UPVC water tank drain valve assembly kits, available at \u003ca href=\"https:\/\/atradesen.com\" target=\"_blank\"\u003eAtradesen.com\u003c\/a\u003e. Crafted from potable water-grade and chemical-grade UPVC, this complete mechanical kit is engineered to withstand up to 16kg (1.6 MPa) of pipeline pressure. It provides a leak-free, ready-to-assemble drainage switch that hooks directly into flexible soft hoses.\n\u003c\/p\u003e\n\u003cp\u003e\n  Featuring standard parallel pipe threads, this linear assembly ensures massive flow volume and extremely low pressure loss, making it the exceptional choice for bulk water discharge and routing.\n\u003c\/p\u003e\n\n\u003ch3\u003eComplete 5-Piece Professional Plumbing Package\u003c\/h3\u003e\n\u003cp\u003e\n  Each package comes fully equipped with all necessary professional installation components, eliminating the need to source separate fittings:\n\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Composite Bulkhead Tank Connector:\u003c\/strong\u003e Features twin rubber washers for dual-sided clamping on both smooth inner and outer tank walls. Equipped with an internal socket port.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Male-to-Female Threaded Ball Valve:\u003c\/strong\u003e Smooth-bore, high-capacity flow control with a slip-resistant blue butterfly lever.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Male Threaded Hose Barb (Pagoda) Connector:\u003c\/strong\u003e Provides a tapered, slip-on transition directly to your flexible soft hoses.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x Roll of High-Density PTFE Thread Seal Tape:\u003c\/strong\u003e For wrapping male threads to secure watertight, leak-proof mechanical joints.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1 x 304 Stainless Steel Hose Clamp:\u003c\/strong\u003e Equipped with an easy-turn yellow thumb-key for secure, tool-free hose locking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSingle-Side Port Design \u0026amp; Left-Hand Locking Nut\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Socket Port:\u003c\/strong\u003e The compound bulkhead connector is engineered with an internal smooth socket on its inner side. This allows you to solvent-weld an additional rigid PVC pipe inside the tank to act as an inlet feeder or vertical overflow tube without modifying the tank wall.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeft-Hand Thread Warning:\u003c\/strong\u003e The large outer locknut of the bulkhead tank connector features a \u003cstrong\u003eleft-hand thread (reverse thread \/ counter-clockwise to tighten)\u003c\/strong\u003e. Turn the nut counter-clockwise to secure it against the tank wall, and clockwise to loosen it. For larger sizes, utilizing a hex wrench or pipe wrench is highly recommended to achieve tight gasket compression.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2; text-align: left;\"\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold;\"\u003eMaterial\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eIndustrial Potable-Grade UPVC (Lead-Free \u0026amp; Non-Toxic)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold;\"\u003eThread Standard\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStandard G-Thread \/ BSP Parallel (Bulkhead locknut is reverse-threaded)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold;\"\u003eMaximum Pressure Rating\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1.6 MPa (16kg \/ 232 PSI)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold;\"\u003eWorking Temperature Range\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0°C to 55°C (32°F to 131°F)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd; font-weight: bold;\"\u003eHose Clamp Material\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003ePremium 304 Stainless Steel with integrated thumb-turn key\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why does the bulkhead locknut tighten counter-clockwise (reverse thread)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: When you screw a standard right-hand threaded ball valve onto the bulkhead's external threads, the clockwise turning force would normally loosen a standard bulkhead nut. The left-hand (reverse) thread design ensures that tightening the ball valve actually locks the bulkhead nut even tighter against the tank wall, preventing accidental loosening and leakage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What can I connect to the inner socket port of the bulkhead connector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The inner port features a standard smooth socket designed for solvent welding. You can glue in a rigid PVC pipe to act as a standpipe, a vertical overflow bypass, or an intake screen, allowing you to control the water level from inside the tank.\u003c\/p\u003e\n\n\u003c!-- Recommended System Bundles \u0026 Cross-Linking (Strictly 3 Links, Chinese placeholders inside href) --\u003e\n\u003cdiv style=\"background-color: #fcfcfc; border: 1px solid #e5e5e5; padding: 15px; border-radius: 6px; margin-top: 30px;\"\u003e\n  \u003cp style=\"margin: 0 0 10px 0; font-size: 15px; font-weight: bold; color: #333;\"\u003eRecommended System Bundles \u0026amp; Companion Products:\u003c\/p\u003e\n  \u003cul style=\"margin: 0; padding-left: 20px; font-size: 14px; color: #555;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eFor Solid Threaded Tank Connections:\u003c\/strong\u003e If you do not require hose connections, view our basic \n      \u003ca href=\"https:\/\/atradesen.com\/collections\/fish-tank-intake-drainage-joints\/products\/abs-male-threaded-bulkhead-tank-connector-water-inlet-drainage-joint-with-rubber-sealing-gasket-1-2-to-2-atradesen?_pos=1\u0026amp;_sid=8bd2ba9ae\u0026amp;_ss=r\" style=\"text-decoration: underline; font-weight: bold; color: #0056b3;\"\u003eABS Male Threaded Bulkhead Tank Connectors\u003c\/a\u003e.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n      \u003cstrong\u003eFor Symmetrical Water Dispensing:\u003c\/strong\u003e If setting up gravity-fed lines, control terminal flow easily with our \n      \u003ca href=\"https:\/\/atradesen.com\/collections\/misc-adapters-transition-fittings\/products\/water-tank-plastic-faucet-pp-food-grade-valveless-dispenser-tap-for-buckets-storage-tanks-atradesen?_pos=1\u0026amp;_sid=22c418cfa\u0026amp;_ss=r\" style=\"text-decoration: underline; font-weight: bold; color: #0056b3;\"\u003eWater Tank Food-Grade PP Faucets\u003c\/a\u003e.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 0;\"\u003e\n      \u003cstrong\u003eFor Perfect Drum Wall Drilling:\u003c\/strong\u003e Drill clean, burr-free installation holes on plastic water buckets using our \n      \u003ca href=\"https:\/\/atradesen.com\/collections\/hardware-tools\/products\/hss-4241-high-speed-steel-step-drill-bit-symmetrical-pagoda-cone-drill-for-wood-plastic-thin-metal-sheet-4mm-52mm-atradesen\" style=\"text-decoration: underline; font-weight: bold; color: #0056b3;\"\u003eHSS-4241 Step Drill Bits\u003c\/a\u003e.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Atradesen","offers":[{"title":"1\/2\" \/ 10mm","offer_id":56770542993574,"sku":null,"price":5.42,"currency_code":"USD","in_stock":true},{"title":"1\/2\" \/ 12mm","offer_id":56770543026342,"sku":null,"price":5.42,"currency_code":"USD","in_stock":true},{"title":"1\/2\" \/ 14mm","offer_id":56770543059110,"sku":null,"price":5.42,"currency_code":"USD","in_stock":true},{"title":"1\/2\" \/ 16mm","offer_id":56770543091878,"sku":null,"price":5.42,"currency_code":"USD","in_stock":true},{"title":"1\/2\" \/ 20mm","offer_id":56770543124646,"sku":null,"price":6.03,"currency_code":"USD","in_stock":true},{"title":"1\/2\" \/ 25mm","offer_id":56770543157414,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\/2\" \/ 30mm","offer_id":56770543190182,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\/2\" \/ 32mm","offer_id":56770543222950,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\/2\" \/ 40mm","offer_id":56770543255718,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\/2\" \/ 50mm","offer_id":56770543288486,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"3\/4\" \/ 10mm","offer_id":56770543321254,"sku":null,"price":7.86,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 12mm","offer_id":56770543354022,"sku":null,"price":7.86,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 14mm","offer_id":56770543386790,"sku":null,"price":7.86,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 16mm","offer_id":56770543419558,"sku":null,"price":7.86,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 20mm","offer_id":56770543452326,"sku":null,"price":7.86,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 25mm","offer_id":56770543485094,"sku":null,"price":8.64,"currency_code":"USD","in_stock":true},{"title":"3\/4\" \/ 30mm","offer_id":56770543517862,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"3\/4\" \/ 32mm","offer_id":56770543550630,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"3\/4\" \/ 40mm","offer_id":56770543583398,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"3\/4\" \/ 50mm","offer_id":56770543616166,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\" \/ 10mm","offer_id":56770543648934,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\" \/ 12mm","offer_id":56770543681702,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 14mm","offer_id":56770543714470,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\" \/ 16mm","offer_id":56770543747238,"sku":null,"price":10.32,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 20mm","offer_id":56770543780006,"sku":null,"price":10.32,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 25mm","offer_id":56770543812774,"sku":null,"price":10.32,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 30mm","offer_id":56770543845542,"sku":null,"price":10.32,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 32mm","offer_id":56770543878310,"sku":null,"price":11.75,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 40mm","offer_id":56770543911078,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1\" \/ 50mm","offer_id":56770543943846,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1-1\/4\" \/ 10mm","offer_id":56770543976614,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1-1\/4\" \/ 12mm","offer_id":56770544009382,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1-1\/4\" \/ 14mm","offer_id":56770544042150,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1-1\/4\" \/ 16mm","offer_id":56770544074918,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false},{"title":"1-1\/4\" \/ 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