{"id":1783,"date":"2025-10-16T15:11:00","date_gmt":"2025-10-16T07:11:00","guid":{"rendered":"https:\/\/zjhaotianwelding.com\/?p=1783"},"modified":"2025-10-16T15:11:02","modified_gmt":"2025-10-16T07:11:02","slug":"ppr-pipe-fusion-welding-problem","status":"publish","type":"post","link":"https:\/\/zjhaotianwelding.com\/vi\/ppr-pipe-fusion-welding-problem\/","title":{"rendered":"C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra h\u00e0n nhi\u1ec7t \u1ed1ng PPR"},"content":{"rendered":"<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 trong h\u00e0n nhi\u1ec7t \u1ed1ng PPR \u0111\u1ec1u do ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n k\u00e9m. Ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t \u1ed1ng PPR. Ch\u00fang ta \u0111\u00e3 t\u1eebng th\u1ea3o lu\u1eadn v\u1ec1... <a href=\"https:\/\/zjhaotianwelding.com\/vi\/weld-ppr-pipe-fittings\/\">Quy tr\u00ecnh h\u00e0n \u0111\u00fang c\u00e1ch cho \u1ed1ng PPR<\/a>, V\u00e0 m\u1ed7i th\u1ee3 l\u1eafp \u0111\u1eb7t \u1ed1ng n\u01b0\u1edbc \u0111\u1ec1u ph\u1ea3i tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c quy \u0111\u1ecbnh n\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u00e3y xem x\u00e9t m\u1ed9t quy tr\u00ecnh h\u00e0n ti\u00eau chu\u1ea9n.<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed9t \u1ed1ng v\u00e0 ph\u1ee5 ki\u1ec7n PPR \u0111\u01b0\u1ee3c h\u00e0n \u0111\u00fang c\u00e1ch s\u1ebd:<\/li>\n\n\n\n<li>\u0110\u01b0\u1ee3c h\u00e0n k\u00edn ho\u00e0n to\u00e0n m\u00e0 kh\u00f4ng c\u00f3 khe h\u1edf.<\/li>\n\n\n\n<li>Hi\u1ec3n th\u1ecb hi\u1ec7n t\u01b0\u1ee3ng tan ch\u1ea3y \u0111\u1ed3ng \u0111\u1ec1u xung quanh m\u1ed1i n\u1ed1i.<\/li>\n\n\n\n<li>Kh\u00f4ng c\u00f3 v\u1ebft ch\u00e1y, bong b\u00f3ng ho\u1eb7c bi\u1ebfn d\u1ea1ng.<\/li>\n\n\n\n<li>T\u1ea1o k\u1ebft n\u1ed1i li\u1ec1n m\u1ea1ch v\u00e0 kh\u00f4ng r\u00f2 r\u1ec9.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"956\" height=\"537\" src=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4.jpg\" alt=\"Standard welded ppr pipe\" class=\"wp-image-1784\" srcset=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4.jpg 956w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4-300x169.jpg 300w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4-768x431.jpg 768w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4-18x10.jpg 18w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-4-600x337.jpg 600w\" sizes=\"(max-width: 956px) 100vw, 956px\" \/><figcaption class=\"wp-element-caption\">\u1ed0ng PPR h\u00e0n ti\u00eau chu\u1ea9n<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e0n \u1ed1ng n\u01b0\u1edbc PPR ti\u00eau chu\u1ea9n, \u1ed1ng v\u00e0 ph\u1ee5 ki\u1ec7n \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ho\u00e0n to\u00e0n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u00e3y c\u00f9ng xem x\u00e9t m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 h\u00e0n th\u01b0\u1eddng g\u1eb7p:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Nhi\u1ec7t \u0111\u1ed9 h\u00e0n qu\u00e1 cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi nhi\u1ec7t \u0111\u1ed9 h\u00e0n v\u01b0\u1ee3t qu\u00e1 m\u1ee9c khuy\u1ebfn ngh\u1ecb, v\u1eadt li\u1ec7u tr\u1edf n\u00ean qu\u00e1 m\u1ec1m ho\u1eb7c th\u1eadm ch\u00ed b\u1ecb cacbon h\u00f3a. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebft d\u00ednh y\u1ebfu<\/li>\n\n\n\n<li>S\u1ef1 co ng\u00f3t b\u00ean trong<\/li>\n\n\n\n<li>B\u1ec1 m\u1eb7t b\u1ecb ch\u00e1y x\u00e9m<\/li>\n\n\n\n<li>S\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a \u1ed1ng<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"956\" height=\"537\" src=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5.jpg\" alt=\"Welding PPR temperature is too high\" class=\"wp-image-1785\" srcset=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5.jpg 956w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5-300x169.jpg 300w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5-768x431.jpg 768w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5-18x10.jpg 18w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-5-600x337.jpg 600w\" sizes=\"(max-width: 956px) 100vw, 956px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u1ed0ng h\u00e0n PPR kh\u00f4ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u0111\u00fang v\u1ecb tr\u00ed.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi nhi\u1ec7t \u0111\u1ed9 h\u00e0n v\u01b0\u1ee3t qu\u00e1 m\u1ee9c khuy\u1ebfn ngh\u1ecb, v\u1eadt li\u1ec7u tr\u1edf n\u00ean qu\u00e1 m\u1ec1m ho\u1eb7c th\u1eadm ch\u00ed b\u1ecb cacbon h\u00f3a. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u1ebft d\u00ednh y\u1ebfu<\/li>\n\n\n\n<li>S\u1ef1 co ng\u00f3t b\u00ean trong<\/li>\n\n\n\n<li>B\u1ec1 m\u1eb7t b\u1ecb ch\u00e1y x\u00e9m<\/li>\n\n\n\n<li>S\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a \u1ed1ng<\/li>\n\n\n\n<li>C\u00e1c v\u1ebft n\u1ee9t \u1ea9n v\u00e0 r\u00f2 r\u1ec9 ti\u1ec1m \u1ea9n trong t\u01b0\u01a1ng lai<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"956\" height=\"537\" src=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6.jpg\" alt=\"PPR pipe welding socket is not in place\" class=\"wp-image-1786\" srcset=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6.jpg 956w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6-300x169.jpg 300w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6-768x431.jpg 768w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6-18x10.jpg 18w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-6-600x337.jpg 600w\" sizes=\"(max-width: 956px) 100vw, 956px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u00e1y h\u00e0n qu\u00e1 cao.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang t\u00f4i khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 h\u00e0n ti\u00eau chu\u1ea9n cho \u1ed1ng v\u00e0 ph\u1ee5 ki\u1ec7n PPR. N\u1ebfu s\u1eed d\u1ee5ng h\u00e0n nhi\u1ec7t \u0111\u1ed9 \u0111i\u1ec1u ch\u1ec9nh, nhi\u1ec7t \u0111\u1ed9 h\u00e0n PPR n\u00ean l\u00e0 260\u00b0C (t\u1ed1t nh\u1ea5t kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 300\u00b0C) theo quy \u0111\u1ecbnh h\u00e0n. Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao c\u00f3 th\u1ec3 khi\u1ebfn v\u1eadt li\u1ec7u PPR tr\u1edf n\u00ean qu\u00e1 m\u1ec1m v\u00e0 th\u1eadm ch\u00ed b\u1ecb carbon h\u00f3a m\u1ed9t ph\u1ea7n, d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh h\u00e0n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6.jpg\" alt=\"20mm-110mm recommended PPR pipe welding temperature\" class=\"wp-image-1781\" srcset=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6.jpg 800w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-300x300.jpg 300w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-150x150.jpg 150w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-768x768.jpg 768w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-12x12.jpg 12w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-600x600.jpg 600w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u6e29\u5ea6-100x100.jpg 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Nhi\u1ec7t \u0111\u1ed9 h\u00e0n \u1ed1ng PPR khuy\u1ebfn ngh\u1ecb t\u1eeb 20mm \u0111\u1ebfn 110mm<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">H\u01b0 h\u1ecfng do l\u00e3o h\u00f3a c\u1ee7a khu\u00f4n h\u00e0n socket<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u h\u00e0n tr\u00ean m\u00e1y h\u00e0n nhi\u1ec7t cho \u1ed1ng PPR s\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 Teflon. Teflon c\u00f3 n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t th\u1ea5p, do \u0111\u00f3 \u1ed1ng PPR \u0111\u00e3 \u0111\u01b0\u1ee3c h\u00e0n n\u00f3ng ch\u1ea3y s\u1ebd kh\u00f4ng d\u00ednh v\u00e0o n\u00f3. Tuy nhi\u00ean, trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao k\u00e9o d\u00e0i, Teflon l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u polymer c\u0169ng s\u1ebd b\u1ecb l\u00e3o h\u00f3a, \u0111i\u1ec1u n\u00e0y s\u1ebd kh\u00f4ng ng\u0103n \u0111\u01b0\u1ee3c \u1ed1ng PPR d\u00ednh v\u00e0o. Nhi\u1ec1u th\u1ee3 \u1ed1ng n\u01b0\u1edbc kh\u00f4ng v\u1ec7 sinh \u0111\u1ea7u khu\u00f4n khi h\u00e0n \u1ed1ng n\u01b0\u1edbc PPR v\u00e0 kh\u00f4ng c\u00f3 th\u00f3i quen thay th\u1ebf \u0111\u1ecbnh k\u1ef3 \u0111\u1ea7u khu\u00f4n h\u00e0n, \u0111i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n c\u1ee7a \u1ed1ng n\u01b0\u1edbc PPR tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"956\" height=\"537\" src=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8.jpg\" alt=\"Socket welding mold aging damage\" class=\"wp-image-1787\" srcset=\"https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8.jpg 956w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8-300x169.jpg 300w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8-768x431.jpg 768w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8-18x10.jpg 18w, https:\/\/zjhaotianwelding.com\/wp-content\/uploads\/2025\/10\/\u672a\u6807\u9898-8-600x337.jpg 600w\" sizes=\"(max-width: 956px) 100vw, 956px\" \/><figcaption class=\"wp-element-caption\">H\u01b0 h\u1ecfng do l\u00e3o h\u00f3a c\u1ee7a khu\u00f4n h\u00e0n socket<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1ch ph\u00f2ng ng\u1eeba s\u1ef1 c\u1ed1 h\u00e0n do n\u1ea5m m\u1ed1c:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V\u1ec7 sinh b\u1ec1 m\u1eb7t khu\u00f4n th\u01b0\u1eddng xuy\u00ean.<\/li>\n\n\n\n<li>Thay th\u1ebf c\u00e1c khu\u00f4n c\u0169 ho\u1eb7c bong tr\u00f3c k\u1ecbp th\u1eddi.<\/li>\n\n\n\n<li>Tr\u00e1nh \u0111\u1ec3 c\u00f4ng c\u1ee5 qu\u00e1 n\u00f3ng khi kh\u00f4ng s\u1eed d\u1ee5ng.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng \u0111\u1ea7u phun \u0111\u01b0\u1ee3c ph\u1ee7 Teflon \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn.<\/li>\n\n\n\n<li>Ch\u1ecdn k\u00edch th\u01b0\u1edbc khu\u00f4n ph\u00f9 h\u1ee3p v\u1edbi \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">N\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a \u1ed1ng PPR h\u00e0n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ef9 n\u0103ng h\u00e0n l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c m\u1ed1i h\u00e0n lu\u00f4n an to\u00e0n v\u00e0 kh\u00f4ng r\u00f2 r\u1ec9\u2014nh\u01b0ng vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb h\u00e0n \u0111\u00e1ng tin c\u1eady <a href=\"https:\/\/zjhaotianwelding.com\/vi\/danh-muc-san-pham\/ppr-welding-machine\/\">M\u00e1y h\u00e0n PPR<\/a> C\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 ch\u00ednh x\u00e1c, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c. Nhi\u1ec1u v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh h\u00e0n nhi\u1ec7t \u1ed1ng PPR kh\u00f4ng xu\u1ea5t ph\u00e1t t\u1eeb ch\u00ednh \u1ed1ng, m\u00e0 t\u1eeb ngu\u1ed3n nhi\u1ec7t kh\u00f4ng \u1ed5n \u0111\u1ecbnh, khu\u00f4n m\u00f2n ho\u1eb7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng ch\u00ednh x\u00e1c. N\u1ebfu b\u1ea1n mu\u1ed1n n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n ho\u1eb7c n\u00e2ng c\u1ea5p thi\u1ebft b\u1ecb c\u0169, vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00e1y h\u00e0n nhi\u1ec7t PPR chuy\u00ean nghi\u1ec7p v\u1edbi ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 \u1ed5n \u0111\u1ecbnh, khu\u00f4n b\u1ecdc Teflon b\u1ec1n b\u1ec9 v\u00e0 gi\u00e1 \u0111\u1ee1 \u0111a k\u00edch th\u01b0\u1edbc c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 h\u1ecfng h\u00f3c v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf. M\u1ed9t c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t kh\u00f4ng th\u1ec3 thay th\u1ebf k\u1ef9 n\u0103ng\u2014nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 gi\u00fap th\u1ee3 \u1ed1ng n\u01b0\u1edbc c\u00f3 k\u1ef9 n\u0103ng ho\u00e0n th\u00e0nh c\u00e1c c\u00f4ng tr\u00ecnh l\u1eafp \u0111\u1eb7t PPR nhanh h\u01a1n, s\u1ea1ch h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Most PPR pipe fusion welding problems are caused by poor welding. Welding quality is a crucial step in PPR pipe installation. We&#8217;ve previously discussed the proper welding procedures for PPR pipes, and every pipe installer should strictly adhere to them. Let&#8217;s look at a standard welding Standard PPR water pipe welding, pipes and fittings are &#8230; <a title=\"C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra h\u00e0n nhi\u1ec7t \u1ed1ng PPR\" class=\"read-more\" href=\"https:\/\/zjhaotianwelding.com\/vi\/ppr-pipe-fusion-welding-problem\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 Common problems and causes of PPR pipe fusion welding\">\u0110\u1ecdc ti\u1ebfp<\/a><\/p>","protected":false},"author":1,"featured_media":1784,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-1783","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Common problems and causes of PPR pipe fusion welding - HAOTIAN<\/title>\n<meta name=\"description\" content=\"PPR pipe fusion welding problems often lead to leaks and weak joints. 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