{"product_id":"pvc-air-volume-regulating-valve-manual-check-valve-75-200mm","title":"PVC Air Regulating Valve 75–200mm Manual Check Valve Duct","description":"\u003ch2\u003ePVC Air Volume Regulating Valve — Manual Round Check Valve for Home Ventilation\u003c\/h2\u003e\n\u003cp\u003eKeep your home's airflow perfectly balanced with this durable \u003cstrong\u003ePVC Air Volume Regulating Valve\u003c\/strong\u003e. Available in multiple sizes (75mm, 110mm, 150mm, 160mm, and 200mm), this round manual check valve is designed for seamless integration into residential and commercial HVAC, ventilation, and air duct systems. No electricity required — simply adjust manually for precise airflow control.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Size Options:\u003c\/strong\u003e Available in 75mm, 110mm, 150mm, 160mm, and 200mm to fit a wide range of duct openings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable PVC Construction:\u003c\/strong\u003e Lightweight yet robust PVC material resists corrosion and wear for long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManual Regulating Design:\u003c\/strong\u003e Easy hand-operated adjustment allows you to control air volume without any electrical components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCheck Valve Function:\u003c\/strong\u003e Prevents backflow of air, maintaining consistent one-directional airflow in your ventilation system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectricity-Free Operation:\u003c\/strong\u003e Fully mechanical — no wiring, no power source needed, making installation simple and safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for homes, offices, warehouses, bathrooms, kitchens, and industrial ventilation ducts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Lightweight round profile fits neatly into standard duct connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e PVC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Air Volume Regulating Valve \/ Manual Check Valve\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 75mm \/ 110mm \/ 150mm \/ 160mm \/ 200mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Manual (electricity-free)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × PVC Air Volume Regulating Valve (size as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to different monitor settings and lighting conditions, the actual color may vary slightly from product images. Please allow ±1–2cm deviation due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-broom-handle-grip-sleeve-22mm-high-elasticity-nonslip-plastic-mop-stick-replacement-end-cap-for-home-cleaning-universal\"\u003e10pcs Broom Handle Grip Sleeve 22MM High-Elasticity Nonslip Plastic Mop Stick Replacement End Cap\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-no-drill-non-trace-screw-hooks-5-7x5-7cm-thick-adhesive-invisible-picture-hanging-kit-for-photo-frame-keys\"\u003e10Pcs No-Drill Non-Trace Screw Hooks – Invisible Hanging Kit for Home\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1000d-tactical-edc-bag-military-ammo-pouch-hunting-wash-bag-dump-pouch-portable-tool-storage-handbag-compatible-military-utility\"\u003e1000D Tactical EDC Bag – Portable Tool Storage Handbag\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes does this PVC air volume regulating valve come in?\u003c\/h4\u003e\n\u003cp\u003eA: This manual check valve is available in five sizes: 75mm, 110mm, 150mm, 160mm, and 200mm, making it compatible with a wide variety of standard residential and commercial ventilation duct diameters.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this air regulating valve require electricity to operate?\u003c\/h4\u003e\n\u003cp\u003eA: No — this valve is completely electricity-free. It operates manually, allowing you to open, close, or adjust airflow by hand without any wiring or power supply.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the check valve function used for?\u003c\/h4\u003e\n\u003cp\u003eA: The check valve function prevents air from flowing backwards through the duct, ensuring consistent one-directional airflow in your HVAC or ventilation system and maintaining proper air circulation throughout your space.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this valve suitable for bathroom or kitchen ventilation?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The PVC air volume regulating valve is well-suited for bathroom exhaust ducts, kitchen ventilation systems, and general home or office air duct installations where manual airflow control is needed.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes does this PVC air volume regulating valve come in?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This manual check valve is available in five sizes: 75mm, 110mm, 150mm, 160mm, and 200mm, making it compatible with a wide variety of standard residential and commercial ventilation duct diameters.\"}}, {\"@type\": \"Question\", \"name\": \"Does this air regulating valve require electricity to operate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — this valve is completely electricity-free. 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The PVC air volume regulating valve is well-suited for bathroom exhaust ducts, kitchen ventilation systems, and general home or office air duct installations where manual airflow control is needed.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"PVC Air Regulating Valve 75–200mm Manual Check Valve Duct\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/products\/pvc-air-volume-regulating-valve-manual-check-valve-75-200mm\"}]}\u003c\/script\u003e","brand":"Richie's","offers":[{"title":"200mm","offer_id":57600015597734,"sku":"1005013050058691-200mm","price":76.25,"currency_code":"USD","in_stock":true},{"title":"160mm","offer_id":57600015630502,"sku":"1005013050058691-160mm","price":50.19,"currency_code":"USD","in_stock":true},{"title":"150mm","offer_id":57600015663270,"sku":"1005013050058691-150mm","price":46.36,"currency_code":"USD","in_stock":true},{"title":"110mm","offer_id":57600015696038,"sku":"1005013050058691-110mm","price":34.51,"currency_code":"USD","in_stock":true},{"title":"75mm","offer_id":57600015728806,"sku":"1005013050058691-75mm","price":26.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/2182\/7494\/files\/S84042b5ab6554b1087121b5a67f52642I.webp?v=1791673175","url":"https:\/\/richiesmart.com\/products\/pvc-air-volume-regulating-valve-manual-check-valve-75-200mm","provider":"Richie's","version":"1.0","type":"link"}