{"id":1167,"date":"2025-12-10T07:54:12","date_gmt":"2025-12-10T07:54:12","guid":{"rendered":"https:\/\/www.ykyvalve.com\/?p=1167"},"modified":"2025-12-12T02:02:32","modified_gmt":"2025-12-12T02:02:32","slug":"how-to-stop-gate-valve-leaking-repair","status":"publish","type":"post","link":"https:\/\/www.ykyvalve.com\/vi\/blog\/gate-valve\/how-to-stop-gate-valve-leaking-repair\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ng\u0103n van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9?"},"content":{"rendered":"

Khi m\u1ed9t van c\u1eeda<\/a> Khi ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9, c\u00e1ch kh\u1eafc ph\u1ee5c nhanh nh\u1ea5t l\u00e0 t\u00ecm ra ngu\u1ed3n r\u00f2 r\u1ec9. H\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p r\u00f2 r\u1ec9 \u0111\u1ec1u xu\u1ea5t ph\u00e1t t\u1eeb gio\u0103ng tr\u1ee5c van, \u0111\u1ebf van ho\u1eb7c do hao m\u00f2n b\u00ean trong. Sau khi t\u00ecm ra, b\u1ea1n c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa b\u1ed9 ph\u1eadn b\u1ecb l\u1ed7i ho\u1eb7c thay th\u1ebf van n\u1ebfu c\u1ea7n. Kh\u1eafc ph\u1ee5c van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9 gi\u00fap ng\u0103n ng\u1eeba th\u1ea5t tho\u00e1t n\u01b0\u1edbc, b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb v\u00e0 gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y r\u00f2 r\u1ec9, c\u00e1c b\u01b0\u1edbc s\u1eeda ch\u1eefa, c\u00e1ch kh\u1eafc ph\u1ee5c r\u00f2 r\u1ec9 \u1edf tr\u1ee5c van v\u00e0 c\u00e1c d\u1ea5u hi\u1ec7u van b\u1ecb h\u1ecfng. B\u1ea1n c\u0169ng s\u1ebd h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1c b\u01b0\u1edbc \u0111\u01a1n gi\u1ea3n \u0111\u1ec3 ki\u1ec3m tra xem van c\u1ed5ng c\u00f3 b\u1ecb r\u00f2 r\u1ec9 hay kh\u00f4ng.<\/p>\n\n\n\n

V\u00ec sao van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9: Nh\u1eefng v\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i c\u1ea7n t\u00ecm hi\u1ec3u<\/h2>\n\n\n\n

S\u1ef1 m\u00e0i m\u00f2n th\u00e2n van v\u00e0 s\u1ef1 h\u01b0 h\u1ecfng gio\u0103ng<\/h3>\n\n\n
\n
\"\"<\/figure>\n<\/div>\n\n\n

Van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9 \u1edf tr\u1ee5c l\u00e0 v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u1ea5t. V\u00f2ng \u0111\u1ec7m tr\u1ee5c t\u1ea1o ra m\u1ed9t l\u1edbp b\u1ecbt k\u00edn ch\u1eafc ch\u1eafn xung quanh tr\u1ee5c, ng\u0103n ch\u1ea5t l\u1ecfng tho\u00e1t ra ngo\u00e0i. Theo th\u1eddi gian, v\u00f2ng \u0111\u1ec7m b\u1ecb kh\u00f4, b\u1ecb n\u00e9n ho\u1eb7c b\u1ecb m\u00f2n. Khi \u0111i\u1ec1u n\u00e0y x\u1ea3y ra, c\u00e1c khe h\u1edf nh\u1ecf cho ph\u00e9p r\u00f2 r\u1ec9 trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c ngay c\u1ea3 khi van kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n

S\u1ef1 \u0103n m\u00f2n c\u0169ng l\u00e0m suy y\u1ebfu b\u1ec1 m\u1eb7t th\u00e2n van. Khi kim lo\u1ea1i b\u1ecb m\u00f2n, v\u00f2ng \u0111\u1ec7m kh\u00f3 b\u00e1m ch\u1eb7t v\u00e0o, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 li\u00ean t\u1ee5c.<\/p>\n\n\n\n

M\u00f2n gh\u1ebf v\u00e0 h\u01b0 h\u1ecfng b\u00ean trong<\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n th\u1ea5y van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9 khi \u0111\u00f3ng, c\u00f3 th\u1ec3 v\u00f2ng \u0111\u1ec7m b\u00ean trong \u0111\u00e3 b\u1ecb m\u00f2n. Van c\u1ed5ng ph\u1ea3i \u00e9p ch\u1eb7t v\u00e0o v\u00f2ng \u0111\u1ec7m \u0111\u1ec3 ng\u0103n d\u00f2ng ch\u1ea3y. C\u1eb7n b\u1ea9n, s\u1ea1n ho\u1eb7c m\u1ea3ng b\u00e1m t\u00edch t\u1ee5 s\u1ebd ng\u0103n c\u1ea3n van \u0111\u00f3ng k\u00edn ho\u00e0n to\u00e0n. Trong c\u00e1c h\u1ec7 th\u1ed1ng h\u00f3a ch\u1ea5t v\u00e0 d\u1ea7u, s\u1ef1 \u0103n m\u00f2n c\u00f3 th\u1ec3 \u0103n m\u00f2n b\u1ec1 m\u1eb7t v\u00f2ng \u0111\u1ec7m, t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng d\u1eabn r\u00f2 r\u1ec9.<\/p>\n\n\n\n

S\u1ef1 t\u1eafc ngh\u1ebdn do m\u1ea3nh v\u1ee5n v\u00e0 d\u00f2ng ch\u1ea3y b\u1ecb \u00f4 nhi\u1ec5m<\/h3>\n\n\n\n

Van c\u1ed5ng khi \u1edf m\u1ed9t v\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i th\u01b0\u1eddng t\u00edch t\u1ee5 c\u1eb7n b\u1ea9n. C\u1eb7n b\u1ea9n n\u00e0y b\u1ecb k\u1eb9t gi\u1eefa c\u00e1nh van v\u00e0 \u0111\u1ebf van, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3ng kh\u00f4ng ho\u00e0n to\u00e0n. V\u1ea5n \u0111\u1ec1 n\u00e0y c\u0169ng gi\u1ea3i th\u00edch t\u1ea1i sao m\u1ed9t s\u1ed1 ng\u01b0\u1eddi d\u00f9ng th\u1ea5y van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9 khi m\u1edf, v\u00ec c\u1eb7n b\u1ea9n c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf c\u00e1nh van n\u00e2ng l\u00ean m\u1ed9t c\u00e1ch tr\u01a1n tru.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc van kh\u00f4ng ph\u00f9 h\u1ee3p ho\u1eb7c thi\u1ebft k\u1ebf k\u00e9m.<\/h3>\n\n\n\n

Van qu\u00e1 nh\u1ecf ho\u1eb7c \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u00e9m cho h\u1ec7 th\u1ed1ng s\u1ebd lu\u00f4n kh\u00f3 \u0111\u00f3ng k\u00edn. Rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c, s\u1ed1c \u00e1p su\u1ea5t v\u00e0 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 s\u1ebd l\u00e0m l\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn theo th\u1eddi gian. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn r\u00f2 r\u1ec9 \u1edf tr\u1ee5c van, r\u00f2 r\u1ec9 \u1edf gio\u0103ng ho\u1eb7c th\u1eadm ch\u00ed h\u01b0 h\u1ecfng v\u1ecf van.<\/p>\n\n\n\n

C\u00e1ch kh\u1eafc ph\u1ee5c t\u00ecnh tr\u1ea1ng r\u00f2 r\u1ec9 van c\u1ed5ng<\/h2>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n

C\u00e1c b\u01b0\u1edbc \u0111\u01a1n gi\u1ea3n n\u00e0y gi\u00fap b\u1ea1n kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9 v\u00e0 kh\u00f4i ph\u1ee5c ch\u1ee9c n\u0103ng b\u00ecnh th\u01b0\u1eddng. Ch\u00fang \u00e1p d\u1ee5ng cho van gia d\u1ee5ng v\u00e0 h\u1ec7 th\u1ed1ng c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

Si\u1ebft ch\u1eb7t \u0111ai \u1ed1c \u0111\u1ec7m \u0111\u1ec3 kh\u1eafc ph\u1ee5c r\u00f2 r\u1ec9 \u1edf th\u00e2n van.<\/h3>\n\n\n\n

\u0110ai \u1ed1c \u0111\u1ec7m b\u1ecb l\u1ecfng l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn van c\u1ed5ng #1 b\u1ecb r\u00f2 r\u1ec9 t\u1eeb tr\u1ee5c. Th\u01b0\u1eddng th\u00ec ch\u1ec9 c\u1ea7n si\u1ebft ch\u1eb7t l\u1ea1i l\u00e0 \u0111\u1ee7.<\/p>\n\n\n\n

    \n
  1. M\u1edf van ho\u00e0n to\u00e0n.<\/li>\n\n\n\n
  2. D\u00f9ng c\u1edd l\u00ea si\u1ebft ch\u1eb7t \u0111ai \u1ed1c \u0111\u1ec7m th\u00eam m\u1ed9t ph\u1ea7n t\u00e1m v\u00f2ng.<\/li>\n\n\n\n
  3. Ki\u1ec3m tra xem ch\u1ed7 r\u00f2 r\u1ec9 \u0111\u00e3 ng\u1eebng ch\u01b0a.<\/li>\n\n\n\n
  4. N\u1ebfu v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c, h\u00e3y si\u1ebft ch\u1eb7t l\u1ea1i t\u1eeb t\u1eeb cho \u0111\u1ebfn khi h\u1ebft r\u00f2 r\u1ec9.<\/li>\n<\/ol>\n\n\n\n

    C\u00e1ch kh\u1eafc ph\u1ee5c nh\u1ecf n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 v\u1edbi nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p r\u00f2 r\u1ec9 van v\u00e0 gi\u1ea3i \u0111\u00e1p c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p: Van b\u1ecb r\u00f2 r\u1ec9 c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c kh\u00f4ng? V\u00e2ng, trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, ch\u1ec9 c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh \u0111\u01a1n gi\u1ea3n l\u00e0 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n

    \n \n
    \n \n
    \n \n
    \n V\u1ea5n \u0111\u1ec1\n <\/div>\n
    \n Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 x\u1ea3y ra\n <\/div>\n
    \n H\u00e0nh \u0111\u1ed9ng s\u1eeda ch\u1eefa\n <\/div>\n\n
    \n R\u00f2 r\u1ec9 t\u1ea1i Stem\n <\/div>\n
    \n \u0110ai \u1ed1c \u0111\u00f3ng g\u00f3i b\u1ecb l\u1ecfng ho\u1eb7c gio\u0103ng b\u1ecb m\u00f2n\n <\/div>\n
    \n Si\u1ebft ch\u1eb7t \u0111ai \u1ed1c gio\u0103ng ho\u1eb7c thay th\u1ebf gio\u0103ng.\n <\/div>\n\n
    \n R\u00f2 r\u1ec9 khi \u0111\u00f3ng k\u00edn\n <\/div>\n
    \n B\u1ee5i b\u1ea9n tr\u00ean gh\u1ebf ho\u1eb7c gh\u1ebf b\u1ecb m\u00f2n\n <\/div>\n
    \n X\u1ea3 van ho\u1eb7c th\u00e1o r\u1eddi v\u00e0 v\u1ec7 sinh.\n <\/div>\n\n
    \n R\u00f2 r\u1ec9 khi m\u1edf\n <\/div>\n
    \n L\u1ed7i \u0111\u00f3ng g\u00f3i th\u00e2n\n <\/div>\n
    \n Thay th\u1ebf gio\u0103ng tr\u1ee5c\n <\/div>\n\n
    \n R\u00f2 r\u1ec9 dai d\u1eb3ng\n <\/div>\n
    \n \u0102n m\u00f2n ho\u1eb7c h\u01b0 h\u1ecfng b\u00ean trong\n <\/div>\n
    \n Thay th\u1ebf van\n <\/div>\n\n <\/div>\n <\/div>\n
    \n B\u1ea3ng: H\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 van c\u1ed5ng\n <\/div>\n<\/div>\n\n\n\n

    Thay th\u1ebf v\u00f2ng \u0111\u1ec7m van n\u1ebfu b\u1ecb m\u00f2n.<\/h3>\n\n\n\n

    N\u1ebfu vi\u1ec7c si\u1ebft ch\u1eb7t kh\u00f4ng th\u00e0nh c\u00f4ng, v\u1eadt li\u1ec7u \u0111\u00f3ng g\u00f3i s\u1ebd b\u1ecb m\u00f2n.<\/p>\n\n\n\n

      \n
    1. Kh\u00f3a ngu\u1ed3n c\u1ea5p n\u01b0\u1edbc ho\u1eb7c c\u00e1ch ly h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n
    2. H\u00e3y lo\u1ea1i b\u1ecf l\u1edbp bao b\u00ec c\u0169 bao quanh cu\u1ed1ng hoa.<\/li>\n\n\n\n
    3. H\u00e3y thay bao b\u00ec m\u1edbi ho\u1eb7c l\u1eafp m\u00e1y gi\u1eb7t m\u1edbi.<\/li>\n\n\n\n
    4. L\u1eafp r\u00e1p l\u1ea1i v\u00e0 ti\u1ebfn h\u00e0nh ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng xem c\u00f3 r\u00f2 r\u1ec9 hay kh\u00f4ng.<\/li>\n<\/ol>\n\n\n\n

      \u0110i\u1ec1u n\u00e0y gi\u00fap kh\u00f4i ph\u1ee5c \u0111\u1ed9 k\u00edn kh\u00edt v\u00e0 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 th\u00e2n van trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n

      X\u1ea3 s\u1ea1ch c\u1eb7n b\u1ea9n khi g\u1eb7p s\u1ef1 c\u1ed1 v\u1ec1 gio\u0103ng b\u00ean trong.<\/h3>\n\n\n\n

      \u0110\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 van c\u1ed5ng khi \u0111\u00f3ng, h\u00e3y th\u1eed x\u1ea3 n\u01b0\u1edbc:<\/p>\n\n\n\n

        \n
      1. M\u1edf van ho\u00e0n to\u00e0n.<\/li>\n\n\n\n
      2. Cho n\u01b0\u1edbc ch\u1ea3y v\u1edbi t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 cu\u1ed1n tr\u00f4i c\u00e1c m\u1ea3nh v\u1ee5n.<\/li>\n\n\n\n
      3. \u0110\u00f3ng v\u00e0 m\u1edf van nhi\u1ec1u l\u1ea7n.<\/li>\n<\/ol>\n\n\n\n

        N\u1ebfu tr\u1ea7m t\u00edch l\u00e0 nguy\u00ean nh\u00e2n, vi\u1ec7c n\u00e0y th\u01b0\u1eddng gi\u00fap kh\u00f4i ph\u1ee5c l\u1ea1i tr\u1ea1ng th\u00e1i \u0111\u00f3ng k\u00edn ho\u00e0n to\u00e0n.<\/p>\n\n\n\n

        Th\u00e1o r\u1eddi v\u00e0 v\u1ec7 sinh c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong<\/h3>\n\n\n\n

        \u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p t\u1eafc ngh\u1ebdn nghi\u00eam tr\u1ecdng, c\u1ea7n ph\u1ea3i m\u1edf van:<\/p>\n\n\n\n

          \n
        1. C\u1ea9n th\u1eadn th\u00e1o n\u1eafp ca-p\u00f4.<\/li>\n\n\n\n
        2. Lau s\u1ea1ch c\u1eeda, gh\u1ebf ng\u1ed3i v\u00e0 c\u00e1c khu v\u1ef1c b\u00ean trong.<\/li>\n\n\n\n
        3. Lo\u1ea1i b\u1ecf c\u1eb7n v\u00f4i, r\u1ec9 s\u00e9t v\u00e0 c\u00e1c ch\u1ea5t b\u00e1m c\u1ee9ng.<\/li>\n\n\n\n
        4. L\u1eafp r\u00e1p l\u1ea1i v\u00e0 ki\u1ec3m tra l\u1ea7n n\u1eefa.<\/li>\n<\/ol>\n\n\n\n

          B\u01b0\u1edbc n\u00e0y h\u1eefu \u00edch khi ng\u01b0\u1eddi d\u00f9ng h\u1ecfi: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 kh\u1eafc ph\u1ee5c r\u00f2 r\u1ec9 van c\u1ed5ng? ho\u1eb7c L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eeda ch\u1eefa van c\u1ed5ng b\u1ecb r\u00f2 r\u1ec9?<\/p>\n\n\n\n

          Thay th\u1ebf van n\u1ebfu b\u1ecb h\u1ecfng.<\/h3>\n\n\n\n

          N\u1ebfu hi\u1ec7n t\u01b0\u1ee3ng \u0103n m\u00f2n ho\u1eb7c hao m\u00f2n c\u01a1 h\u1ecdc \u0111\u00e3 nghi\u00eam tr\u1ecdng, vi\u1ec7c s\u1eeda ch\u1eefa c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec7u qu\u1ea3. Thay th\u1ebf l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady nh\u1ea5t, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng \u00e1p su\u1ea5t cao ho\u1eb7c h\u00f3a ch\u1ea5t.<\/p>\n\n\n\n

          C\u00e1ch ki\u1ec3m tra r\u00f2 r\u1ec9 van c\u1ed5ng<\/h2>\n\n\n\n

          Vi\u1ec7c ki\u1ec3m tra \u0111\u1ea3m b\u1ea3o van \u0111\u01b0\u1ee3c b\u1ecbt k\u00edn \u0111\u00fang c\u00e1ch sau khi s\u1eeda ch\u1eefa.<\/p>\n\n\n\n

            \n
          1. \u0110\u00f3ng van ho\u00e0n to\u00e0n.<\/li>\n\n\n\n
          2. M\u1edf v\u00f2i n\u01b0\u1edbc ho\u1eb7c t\u1ea1o \u00e1p su\u1ea5t cho h\u1ec7 th\u1ed1ng.<\/li>\n\n\n\n
          3. Ki\u1ec3m tra xem c\u00f3 d\u00f2ng ch\u1ea3y r\u00f2 r\u1ec9, nh\u1ecf gi\u1ecdt ho\u1eb7c ch\u1ea3y ra t\u1eeb th\u00e2n van hay kh\u00f4ng.<\/li>\n\n\n\n
          4. M\u1edf v\u00e0 \u0111\u00f3ng van v\u00e0i l\u1ea7n.<\/li>\n<\/ol>\n\n\n\n

            Quy tr\u00ecnh nhanh n\u00e0y gi\u1ea3i \u0111\u00e1p c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra r\u00f2 r\u1ec9 van c\u1ed5ng?<\/p>\n\n\n\n