{"product_id":"upvc-solvent-weld-pipe-coupler-straight-fitting-20mm-63mm","title":"UPVC Fitting Klebefittings Durchführung Rohrverbinder Muffe 20mm-75mm Aquarium","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eUPVC Solvent Weld Straight Coupler — Leak-Free Pipe Connections from 20mm to 63mm\u003c\/h2\u003e\n    \u003cp\u003eDealing with leaky joints or mismatched fittings is one of the most frustrating setbacks for aquarium builders, irrigation installers, and DIY plumbers. These UPVC solvent weld straight couplers are engineered for makers and builders who need a reliable, tool-free connection that holds under continuous water pressure without seeping or loosening over time.\u003c\/p\u003e\n    \u003cp\u003eEach coupler is manufactured from rigid unplasticized PVC (UPVC), offering a smooth internal bore and uniform wall thickness for consistent flow. The range covers six nominal pipe sizes — 20mm (DN15), 25mm (DN20), 32mm (DN25), 40mm (DN32), 50mm (DN40), and 63mm (DN50) — spanning approximately 0.79 in to 2.48 in outer diameter. Solvent cement (not included) creates a permanent, pressure-rated bond in seconds.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include aquarium sump and return plumbing where vibration-resistant joints are essential, drip irrigation manifolds requiring long-term UV and chemical resistance, and residential cold-water supply lines where a lightweight yet rigid alternative to metal fittings is preferred. Search terms like \"UPVC straight coupler for aquarium sump\", \"solvent weld pipe joiner DN20\", and \"PVC pipe connector for irrigation\" all lead here.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard UPVC \/ PVC-U pressure pipe in Schedule 40 and metric PN10\/PN16 dimensions. Confirm your pipe's outer diameter before ordering. Not suitable for CPVC, ABS, or threaded (BSP\/NPT) connections.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These UPVC Solvent Weld Straight Couplers\u003c\/h2\u003e\n    \u003cdiv class=\"hdiy-list\"\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\n        \u003cstrong\u003eLeak-Free Solvent Bond\u003c\/strong\u003e\n        \u003cp\u003eThe socket-and-spigot design accepts standard UPVC solvent cement for a chemically fused, pressure-rated joint that will not loosen under vibration or thermal cycling.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n        \u003cstrong\u003eSix Size Options in One Listing\u003c\/strong\u003e\n        \u003cp\u003eAvailable in DN15 through DN50 (20mm–63mm OD), covering the most common residential and light-commercial pipe diameters so you can match your existing system without adapters.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\n        \u003cstrong\u003eCorrosion and Chemical Resistance\u003c\/strong\u003e\n        \u003cp\u003eRigid UPVC is inherently resistant to chlorinated water, mild acids, and common fertilizer solutions, making these couplers suitable for both potable-water and irrigation service.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e⚖️\u003c\/span\u003e\n        \u003cstrong\u003eLightweight Yet Rigid Construction\u003c\/strong\u003e\n        \u003cp\u003eUPVC weighs a fraction of copper or galvanized steel while maintaining the structural rigidity needed for buried, wall-mounted, or overhead pipe runs.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🐠\u003c\/span\u003e\n        \u003cstrong\u003eAquarium and Sump Safe\u003c\/strong\u003e\n        \u003cp\u003eNon-toxic, fish-safe material with a smooth bore that minimizes turbulence — ideal for return lines, overflow boxes, and sump plumbing in freshwater and marine tanks.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n        \u003cstrong\u003eTool-Free Installation\u003c\/strong\u003e\n        \u003cp\u003eNo threading, no compression rings, no special tools required. Apply solvent cement, push, hold for 30 seconds, and the joint is set — cutting installation time significantly on multi-connection projects.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — UPVC Straight Pipe Coupler\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eRigid UPVC (Unplasticized PVC)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003eSolvent weld (socket × socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Sizes (OD)\u003c\/th\u003e\n\u003ctd\u003e20mm \/ 25mm \/ 32mm \/ 40mm \/ 50mm \/ 63mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNominal Pipe Size (DN)\u003c\/th\u003e\n\u003ctd\u003eDN15 \/ DN20 \/ DN25 \/ DN32 \/ DN40 \/ DN50\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApproximate OD Range\u003c\/th\u003e\n\u003ctd\u003e20mm–63mm (0.79 in–2.48 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePressure Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor \/ Finish\u003c\/th\u003e\n\u003ctd\u003eGrey (standard UPVC)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTemperature Range\u003c\/th\u003e\n\u003ctd\u003e0°C to 60°C (32°F to 140°F) for cold-water service\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSolvent Cement Required\u003c\/th\u003e\n\u003ctd\u003eYes (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSuitable Fluids\u003c\/th\u003e\n\u003ctd\u003eCold water, irrigation solutions, aquarium water\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003ePVC Fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right size coupler for my pipe?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eMeasure the outer diameter (OD) of your existing pipe with calipers or a tape measure. Match that measurement to the coupler size listed — for example, a pipe with a 25mm OD requires the 25mm (DN20) coupler. Do not measure the inner diameter (ID), as wall thickness varies between pipe schedules.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat pressure can these couplers handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eUPVC solvent weld fittings in this size range are typically rated for PN10 (10 bar \/ 145 psi) or PN16 (16 bar \/ 232 psi) service when used with compatible pipe and correctly applied solvent cement. Confirm the pressure rating of your specific pipe system before installation in high-pressure applications.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these fittings safe for aquarium use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. UPVC is a non-toxic, inert material widely used in aquarium plumbing. Once the solvent cement has fully cured (allow at least 24 hours before filling), the joint is fish-safe for both freshwater and marine environments. Flush the system thoroughly before introducing livestock.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these with CPVC, ABS, or threaded pipe?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo. These couplers are designed exclusively for UPVC (PVC-U) solvent weld pipe. CPVC and ABS require their own dedicated solvent cements and fittings. For threaded (BSP or NPT) connections, you will need a threaded adapter fitting instead.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow long does the solvent weld joint take to cure?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eInitial set time is approximately 30 seconds — hold the joint firmly without twisting during this period. Allow a minimum of 1 hour before handling and at least 24 hours before pressurizing the system. Cure time may be longer in cold or humid conditions.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these couplers be used outdoors or underground?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eUPVC has good UV resistance for short-term outdoor exposure, but prolonged direct sunlight can cause surface degradation over years. For permanent outdoor installations, wrapping the pipe and fittings with UV-protective tape or paint is recommended. These couplers are suitable for buried irrigation and drainage applications when installed below the frost line.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs solvent cement included with the coupler?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo, solvent cement is not included. Use a UPVC-rated solvent cement (sometimes labeled \"PVC cement\" or \"PVC glue\") available at hardware stores. Apply a thin, even coat to both the pipe spigot and the coupler socket, then push together with a slight twisting motion and hold for 30 seconds.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your pipe size (DN \/ mm) above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right size coupler for my pipe?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the outer diameter (OD) of your existing pipe with calipers or a tape measure. Match that measurement to the coupler size listed — for example, a pipe with a 25mm OD requires the 25mm (DN20) coupler. Do not measure the inner diameter (ID), as wall thickness varies between pipe schedules.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What pressure can these couplers handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"UPVC solvent weld fittings in this size range are typically rated for PN10 (10 bar \/ 145 psi) or PN16 (16 bar \/ 232 psi) service when used with compatible pipe and correctly applied solvent cement.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these fittings safe for aquarium use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. UPVC is a non-toxic, inert material widely used in aquarium plumbing. Once the solvent cement has fully cured (allow at least 24 hours before filling), the joint is fish-safe for both freshwater and marine environments.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these with CPVC, ABS, or threaded pipe?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No. These couplers are designed exclusively for UPVC (PVC-U) solvent weld pipe. CPVC and ABS require their own dedicated solvent cements and fittings.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does the solvent weld joint take to cure?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Initial set time is approximately 30 seconds. Allow a minimum of 1 hour before handling and at least 24 hours before pressurizing the system.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these couplers be used outdoors or underground?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"UPVC has good UV resistance for short-term outdoor exposure. For permanent outdoor installations, wrapping with UV-protective tape or paint is recommended. These couplers are suitable for buried irrigation and drainage applications.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is solvent cement included with the coupler?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No, solvent cement is not included. Use a UPVC-rated solvent cement available at hardware stores. Apply a thin, even coat to both the pipe spigot and the coupler socket, then push together with a slight twisting motion and hold for 30 seconds.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"HomeDIYer","offers":[{"title":"20mm DN15","offer_id":52332050776338,"sku":"GLFBNHHGLBZSJ021941x1","price":8.35,"currency_code":"USD","in_stock":true},{"title":"25mm DN20","offer_id":52332050809106,"sku":"GLFBNHHGLBZSJ021942x1","price":10.27,"currency_code":"USD","in_stock":true},{"title":"32mm DN25","offer_id":52332050841874,"sku":"GLFBNHHGLBZSJ021943x1","price":12.48,"currency_code":"USD","in_stock":true},{"title":"40mm DN32","offer_id":52332050874642,"sku":"GLFBNHHGLBZSJ021944x1","price":15.57,"currency_code":"USD","in_stock":true},{"title":"50mm DN40","offer_id":52332050907410,"sku":"GLFBNHHGLBZSJ021945x1","price":19.08,"currency_code":"USD","in_stock":true},{"title":"63mm DN50","offer_id":52332050940178,"sku":"GLFBNHHGLBZSJ021946x1","price":21.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Bild1von3.jpg?v=1782128281","url":"https:\/\/homediyer.com\/products\/upvc-solvent-weld-pipe-coupler-straight-fitting-20mm-63mm","provider":"HomeDIYer","version":"1.0","type":"link"}