{"type":"product","schema_version":"1.0","item_id":"100559548365","canonical_url":"https://tw.bid.yahoo.com/item/100559548365","title":"安全閥 4分逆止安全閥 熱水器安全閥 家用 熱水器 逆止安全閥 熱水桶安全閥 減壓閥 三合一 熱水桶安全閥","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-05-01T13:46:31.362Z","current_price":190,"original_price":null,"stock_status":"in_stock","available_quantity":18,"sold_quantity":5,"seller":{"id":"Y9875095800","name":"定遠資訊 選手電腦 我是畬","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/0c44b64c-788f-4561-b79e-10eb8d5317d7.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/5db29afb-8232-4332-84f1-c54613de4f43.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/5ce4ecc3-ba3d-4dad-952e-e726407abef1.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/7169dca6-712d-4c90-8ba4-5e0e74678b64.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/dbb95c39-e8a6-4a96-a973-7a4c92a3850a.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b3e0024e-a886-4695-89d3-07105bb4b620.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null}],"description":"有相關電熱熱水/大陽能熱水系統 /大型鍋爐設備 , 電熱/瓦斯/柴油系統\n\n安全閥/釋氣閥/迴水系統 , 配管/電路控制皆可以詢問\n\n接口規格：4分 1/2\"  DN15   都是通用的\n\n壓力設定  7KG/cm2 ,大約 6.5kg~ +- 左右開始洩壓\n安全閥是一種壓力保護閥，洩壓的功能。\n防止電熱水器內的熱水倒流回冷水管內，浪費電費，\n\n能夠將電熱水器內因水溫增高而增大的壓力排泄出去，以保證內膽的正常使用。\n\n\"假設\"\n\n進水壓力是 1.5kg ， 熱水器水溫異常增加到 90度，溫升壓力+ 5 kg， 1.5+5=6.5，\n\n超過安全閥的洩壓範圍 ，就必需由安全閥滴水洩壓。\n\n常見問題 : 安裝新的安全閥洩壓口還是滴水、漏水怎麼辦？\n\n答：\n您家水管的水壓，應該已經超過安全閥的洩壓範圍，\n建議安全閥前安裝一個減壓閥附壓力錶型！($350+-)進水壓力控制在 1.5kg左右。\n \n\"假設\"\n進水壓力是 3.5kg ， 熱水器水溫增加到 60度，溫升壓力+ 3 kg，3.5+3=6.5，\n必需要把進水壓力控制在 1.5KG 左右，加裝減壓閥即可。\n產品材質：主體全銅+電鍍\n1.公稱壓力：0.7MPa   0.8Mpa\n2.工作介質：水\n3.工作溫度：0℃≤t≤100℃\n正常電熱水器的銘牌上都有標注額定壓力；\n若不清楚，一般容量小於80升的電熱水器都用0.7Mpa的就可以\n減壓閥 4分含7KG壓力錶+調壓扳手+止洩帶$390\n減壓閥 6分含7KG壓力錶+調壓扳手+止洩帶$450","shipping_methods":[{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"萊爾富取貨付款","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"面交/自取/不寄送","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","萊爾富取貨付款","7-ELEVEN取貨付款"],"category_id":"2092080635","category_name":"其他用品","breadcrumb":[{"id":"24198","name":"居家、家具與園藝","url":"/tw/%E5%B1%85%E5%AE%B6%E3%80%81%E5%AE%B6%E5%85%B7%E8%88%87%E5%9C%92%E8%97%9D-24198-category.html"},{"id":"2092080373","name":"廚房鍋具/餐具/用品","url":"/tw/%E5%BB%9A%E6%88%BF%E9%8D%8B%E5%85%B7-%E9%A4%90%E5%85%B7-%E7%94%A8%E5%93%81-2092080373-category.html"},{"id":"2092080635","name":"其他用品","url":"/tw/%E5%85%B6%E4%BB%96%E7%94%A8%E5%93%81-2092080635-category.html"}],"view_count":2,"watch_count":5}