{"id":1112,"date":"2026-09-23T01:23:20","date_gmt":"2026-09-23T01:23:20","guid":{"rendered":"https:\/\/wdlvalve.com\/?p=1112"},"modified":"2026-10-08T13:21:36","modified_gmt":"2026-10-08T13:21:36","slug":"van-lam-tu-giay-bot","status":"publish","type":"post","link":"https:\/\/wdlvalve.com\/vi\/van-lam-tu-giay-bot\/","title":{"rendered":"Van trong ng\u00e0nh b\u1ed9t gi\u1ea5y v\u00e0 gi\u1ea5y: \u1ee8ng d\u1ee5ng, c\u00e1c lo\u1ea1i v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn"},"content":{"rendered":"
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C\u00e1c van d\u00f9ng trong ng\u00e0nh b\u1ed9t gi\u1ea5y v\u00e0 gi\u1ea5y c\u00f3 ch\u1ee9c n\u0103ng c\u00e1ch ly thi\u1ebft b\u1ecb, \u0111i\u1ec1u khi\u1ec3n l\u01b0u l\u01b0\u1ee3ng v\u00e0 ng\u0103n ch\u1eb7n d\u00f2ng ch\u1ea3y ng\u01b0\u1ee3c trong c\u00e1c h\u1ec7 th\u1ed1ng chu\u1ea9n b\u1ecb b\u1ed9t gi\u1ea5y, thu h\u1ed3i h\u00f3a ch\u1ea5t, t\u1ea9y tr\u1eafng, h\u01a1i n\u01b0\u1edbc, n\u01b0\u1edbc v\u00e0 n\u01b0\u1edbc th\u1ea3i. Lo\u1ea1i van ph\u00f9 h\u1ee3p ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, ch\u1ed1ng t\u00edch t\u1ee5 s\u1ee3i gi\u1ea5y, ch\u1ed1ng \u0111\u00f3ng c\u1eb7n v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c ch\u1ea5t r\u1eafn m\u00e0i m\u00f2n m\u00e0 kh\u00f4ng l\u00e0m c\u1ea3n tr\u1edf qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n

WDL Valve<\/strong> cung c\u1ea5p c\u00e1c lo\u1ea1i van bi, van b\u01b0\u1edbm, van c\u1ed5ng, van c\u1ea7u v\u00e0 van m\u1ed9t chi\u1ec1u v\u1edbi c\u1ea5u tr\u00fac \u0111\u1ec7m kim lo\u1ea1i ho\u1eb7c \u0111\u1ec7m m\u1ec1m d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng trong nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t b\u1ed9t gi\u1ea5y v\u00e0 gi\u1ea5y.<\/p>\n<\/header>\n

 <\/p>\n

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Van \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2u trong c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t b\u1ed9t gi\u1ea5y v\u00e0 gi\u1ea5y?<\/h2>\n

M\u1ed9t nh\u00e0 m\u00e1y gi\u1ea5y s\u1eed d\u1ee5ng van t\u1eeb kh\u00e2u l\u1ea5y n\u01b0\u1edbc th\u00f4 cho \u0111\u1ebfn c\u00e1c c\u00f4ng \u0111o\u1ea1n nghi\u1ec1n b\u1ed9t gi\u1ea5y, r\u1eeda, t\u1ea9y tr\u1eafng, s\u1ea3n xu\u1ea5t gi\u1ea5y, thu h\u1ed3i h\u00f3a ch\u1ea5t v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. M\u1ed7i khu v\u1ef1c \u0111\u1ec1u c\u00f3 nh\u1eefng y\u00eau c\u1ea7u kh\u00e1c nhau v\u1ec1 thi\u1ebft k\u1ebf l\u1ed7 van, kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, kh\u1ea3 n\u0103ng x\u1eed l\u00fd ch\u1ea5t r\u1eafn v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u00f3ng van.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Khu v\u1ef1c Mill<\/th>\nPh\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng \u0111i\u1ec3n h\u00ecnh<\/th>\nTh\u00e1ch th\u1ee9c ch\u00ednh<\/th>\nC\u00e1c lo\u1ea1i van ph\u1ed5 bi\u1ebfn<\/th>\n<\/tr>\n<\/thead>\n
Chu\u1ea9n b\u1ecb nguy\u00ean li\u1ec7u<\/td>\nNguy\u00ean li\u1ec7u b\u1ed9t gi\u1ea5y, s\u1ee3i v\u00e0 c\u00e1c ch\u1ea5t ph\u1ee5 gia<\/td>\nS\u1ef1 t\u00edch t\u1ee5 s\u1ee3i, t\u1eafc ngh\u1ebdn v\u00e0 m\u00e0i m\u00f2n<\/td>\nVan bi, van b\u01b0\u1edbm v\u00e0 van c\u1ed5ng<\/td>\n<\/tr>\n
B\u1ec3 l\u00ean men v\u00e0 r\u1eeda<\/td>\nB\u1ed9t gi\u1ea5y, dung d\u1ecbch tr\u1eafng v\u00e0 n\u01b0\u1edbc r\u1eeda<\/td>\n\u0110\u1ed9 ki\u1ec1m, nhi\u1ec7t \u0111\u1ed9 v\u00e0 ch\u1ea5t r\u1eafn<\/td>\nVan bi, van c\u1ed5ng, van c\u1ea7u v\u00e0 van m\u1ed9t chi\u1ec1u<\/td>\n<\/tr>\n
Ph\u1ee5c h\u1ed3i h\u00f3a ch\u1ea5t<\/td>\nDung d\u1ecbch \u0111en, dung d\u1ecbch xanh v\u00e0 dung d\u1ecbch tr\u1eafng<\/td>\nS\u1ef1 \u0103n m\u00f2n, s\u1ef1 \u0111\u00f3ng c\u1eb7n v\u00e0 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn cao<\/td>\nVan bi, van c\u1ed5ng v\u00e0 van m\u1ed9t chi\u1ec1u<\/td>\n<\/tr>\n
Nh\u00e0 m\u00e1y t\u1ea9y tr\u1eafng<\/td>\nH\u00f3a ch\u1ea5t oxy h\u00f3a v\u00e0 b\u00f9n b\u1ed9t gi\u1ea5y<\/td>\nT\u00ednh t\u01b0\u01a1ng th\u00edch h\u00f3a h\u1ecdc v\u00e0 ki\u1ec3m so\u00e1t r\u00f2 r\u1ec9<\/td>\nD\u1ecbch v\u1ee5 s\u1eed d\u1ee5ng b\u00f3ng, van b\u01b0\u1edbm v\u00e0 van m\u00e0ng<\/td>\n<\/tr>\n
H\u01a1i n\u01b0\u1edbc v\u00e0 n\u01b0\u1edbc ng\u01b0ng t\u1ee5<\/td>\nH\u01a1i n\u01b0\u1edbc, n\u01b0\u1edbc n\u00f3ng v\u00e0 n\u01b0\u1edbc ng\u01b0ng t\u1ee5<\/td>\n\u00c1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9 v\u00e0 chu k\u1ef3 nhi\u1ec7t<\/td>\nVan c\u1ed5ng, van c\u1ea7u v\u00e0 van m\u1ed9t chi\u1ec1u<\/td>\n<\/tr>\n
N\u01b0\u1edbc v\u00e0 n\u01b0\u1edbc th\u1ea3i<\/td>\nN\u01b0\u1edbc th\u00f4, n\u01b0\u1edbc x\u1eed l\u00fd, n\u01b0\u1edbc th\u1ea3i v\u00e0 b\u00f9n th\u1ea3i<\/td>\nCh\u1ea5t r\u1eafn l\u01a1 l\u1eedng, \u0103n m\u00f2n v\u00e0 b\u00e1m b\u1ea9n<\/td>\nVan b\u01b0\u1edbm, van c\u1ed5ng v\u00e0 van m\u1ed9t chi\u1ec1u<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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WDL Valve d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng trong ng\u00e0nh b\u1ed9t gi\u1ea5y v\u00e0 gi\u1ea5y<\/h2>\n

C\u00e1c s\u1ea3n ph\u1ea9m WDL n\u00e0y l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn kh\u1edfi \u0111\u1ea7u thi\u1ebft th\u1ef1c cho c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn h\u00f3a ch\u1ea5t \u0103n m\u00f2n, n\u01b0\u1edbc, h\u1ec7 th\u1ed1ng ti\u1ec7n \u00edch v\u00e0 van m\u1ed9t chi\u1ec1u. T\u00ednh ph\u00f9 h\u1ee3p th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, n\u1ed3ng \u0111\u1ed9 s\u1ee3i, h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn, \u00e1p su\u1ea5t, nhi\u1ec7t \u0111\u1ed9 v\u00e0 y\u00eau c\u1ea7u v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ed1ng r\u00f2 r\u1ec9.<\/p>\n


\n\"WDL
\nVan bi hai chi\u1ec1u<\/strong>
\nC\u00e1ch ly ch\u1ed1ng \u0103n m\u00f2n<\/span><\/a>
\n\"WDL
\nVan c\u1ed5ng hai chi\u1ec1u<\/strong>
\nC\u00e1ch ly \u0111\u01b0\u1eddng \u1ed1ng m\u1edf ho\u00e0n to\u00e0n<\/span><\/a>
\n\"WDL
\nVan m\u1ed9t chi\u1ec1u hai chi\u1ec1u<\/strong>
\nB\u01a1m v\u00e0 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 ch\u1ed1ng d\u00f2ng ch\u1ea3y ng\u01b0\u1ee3c<\/span>
\n<\/a><\/div>\n<\/section>\n
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Nh\u1eefng lo\u1ea1i van n\u00e0o ph\u00f9 h\u1ee3p \u0111\u1ec3 s\u1eed d\u1ee5ng trong ng\u00e0nh gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y?<\/h2>\n

Van bi<\/a><\/h3>\n

Van bi to\u00e0n kh\u1ea9u \u0111\u1ed9 mang l\u1ea1i \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng ch\u1ea3y t\u01b0\u01a1ng \u0111\u1ed1i th\u00f4ng tho\u00e1ng v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch ly k\u00edn kh\u00edt. Lo\u1ea1i van n\u00e0y r\u1ea5t h\u1eefu \u00edch cho c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn h\u00f3a ch\u1ea5t, r\u01b0\u1ee3u v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng ti\u1ec7n \u00edch khi v\u1eadt li\u1ec7u l\u00e0m gh\u1ebf van v\u00e0 th\u00e2n van \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn t\u01b0\u01a1ng th\u00edch v\u1edbi m\u00f4i tr\u01b0\u1eddng ch\u1ea5t l\u1ecfng.<\/p>\n

Van b\u01b0\u1edbm<\/a><\/h3>\n

Van b\u01b0\u1edbm c\u00f3 thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed, ph\u00f9 h\u1ee3p cho c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn n\u01b0\u1edbc, kh\u00ed v\u00e0 ch\u1ea5t l\u1ecfng c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t r\u1eafn th\u1ea5p. C\u1ea7n ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng v\u1eadt li\u1ec7u c\u1ee7a \u0111\u0129a van, l\u1edbp l\u00f3t v\u00e0 \u0111\u1ebf van tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng v\u1edbi h\u00f3a ch\u1ea5t t\u1ea9y tr\u1eafng ho\u1eb7c ch\u1ea5t l\u1ecfng c\u00f3 t\u00ednh m\u00e0i m\u00f2n.<\/p>\n

Van c\u1ed5ng<\/a><\/h3>\n

Van c\u1ed5ng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng c\u00e1ch ly v\u1edbi l\u1ef1c c\u1ea3n th\u1ea5p khi m\u1edf ho\u00e0n to\u00e0n. Van c\u1ed5ng ki\u1ec3u n\u00eam ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u1ecfng s\u1ea1ch, trong khi c\u00e1c \u1ee9ng d\u1ee5ng li\u00ean quan \u0111\u1ebfn ch\u1ea5t l\u1ecfng c\u00f3 c\u1eb7n ho\u1eb7c b\u00f9n c\u00f3 th\u1ec3 y\u00eau c\u1ea7u thi\u1ebft k\u1ebf \u0111\u01b0\u1eddng k\u00ednh trong v\u00e0 c\u01a1 ch\u1ebf \u0111\u00f3ng m\u1edf \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m c\u1eaft xuy\u00ean qua ho\u1eb7c tr\u00e1nh s\u1ef1 t\u00edch t\u1ee5 c\u1ee7a c\u00e1c s\u1ee3i.<\/p>\n

Van c\u1ea7u<\/a><\/h3>\n

Van c\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u ti\u1ebft h\u01a1i n\u01b0\u1edbc, n\u01b0\u1edbc v\u00e0 h\u00f3a ch\u1ea5t s\u1ea1ch. Lo\u1ea1i van n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ti\u1ebft l\u01b0u l\u01b0\u1ee3ng t\u1ed1t h\u01a1n so v\u1edbi van c\u1ed5ng ti\u00eau chu\u1ea9n, nh\u01b0ng g\u00e2y ra \u0111\u1ed9 s\u1ee5t \u00e1p cao h\u01a1n v\u00e0 th\u01b0\u1eddng \u00edt ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi nguy\u00ean li\u1ec7u s\u1ee3i c\u00f3 \u0111\u1ed9 \u0111\u1eb7c cao.<\/p>\n

Van m\u1ed9t chi\u1ec1u<\/a><\/h3>\n

Van m\u1ed9t chi\u1ec1u ng\u0103n ch\u1eb7n d\u00f2ng ch\u1ea3y ng\u01b0\u1ee3c qua m\u00e1y b\u01a1m v\u00e0 c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng ngh\u1ec7. Vi\u1ec7c l\u1ef1a ch\u1ecdn k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng v\u00ec van m\u1ed9t chi\u1ec1u c\u00f3 k\u00edch th\u01b0\u1edbc qu\u00e1 l\u1edbn c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, trong khi thi\u1ebft k\u1ebf b\u00ean trong kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 g\u00e2y t\u00edch t\u1ee5 s\u1ee3i ho\u1eb7c c\u1eb7n.<\/p>\n<\/section>\n

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Ch\u1ea5t th\u1ea3i, n\u01b0\u1edbc \u0111en v\u00e0 h\u00f3a ch\u1ea5t t\u1ea9y tr\u1eafng \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn van?<\/h2>\n

Nguy\u00ean li\u1ec7u gi\u1ea5y<\/strong> contains suspended fibers that can bridge narrow passages, pack into body cavities and interfere with the seat. Favor a smooth, open flow path and avoid unnecessary dead zones; a correctly selected knife gate valve<\/a> is one option for solids-containing isolation service. The valve size should reflect stock consistency and velocity, not pipe size alone.<\/p>\n

Dung d\u1ecbch \u0111en<\/strong> c\u00f3 th\u1ec3 n\u00f3ng, c\u00f3 t\u00ednh ki\u1ec1m, c\u00f3 \u0111\u1ed9 nh\u1edbt cao v\u00e0 ch\u1ee9a nhi\u1ec1u ch\u1ea5t r\u1eafn h\u00f2a tan ho\u1eb7c l\u01a1 l\u1eedng. Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3ng c\u1eb7n v\u00e0 \u0103n m\u00f2n c\u00f3 th\u1ec3 gia t\u0103ng khi dung d\u1ecbch tr\u1edf n\u00ean \u0111\u1eadm \u0111\u1eb7c h\u01a1n. Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u cho th\u00e2n b\u1ed3n, b\u1ed9 ph\u1eadn ho\u00e0n thi\u1ec7n, \u0111\u1ebf v\u00e0 v\u1eadt li\u1ec7u l\u00e0m k\u00edn ph\u1ea3i d\u1ef1a tr\u00ean n\u1ed3ng \u0111\u1ed9 th\u1ef1c t\u1ebf v\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh.<\/p>\n

R\u01b0\u1ee3u tr\u1eafng<\/strong> ch\u1ee9a c\u00e1c h\u00f3a ch\u1ea5t t\u1ea9y tr\u1eafng ki\u1ec1m ho\u1ea1t t\u00ednh. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u, kh\u1ea3 n\u0103ng b\u1ecbt k\u00edn tr\u1ee5c v\u00e0 kh\u1ea3 n\u0103ng c\u00e1ch ly an to\u00e0n l\u00e0 nh\u1eefng ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn quan tr\u1ecdng h\u00e0ng \u0111\u1ea7u. Ch\u1ec9 ghi nh\u00e3n \u201cth\u00e9p kh\u00f4ng g\u1ec9\u201d chung chung l\u00e0 ch\u01b0a \u0111\u1ee7; c\u1ea7n ph\u1ea3i xem x\u00e9t c\u1ee5 th\u1ec3 th\u00e0nh ph\u1ea7n h\u1ee3p kim v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng.<\/p>\n

H\u00f3a ch\u1ea5t t\u1ea9y tr\u1eafng<\/strong> c\u00f3 th\u1ec3 c\u00f3 t\u00ednh oxy h\u00f3a m\u1ea1nh ho\u1eb7c \u0103n m\u00f2n. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y theo n\u1ed3ng \u0111\u1ed9, c\u00e1c t\u1ea1p ch\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9, do \u0111\u00f3 c\u1ea7n \u0111\u00e1nh gi\u00e1 v\u1eadt li\u1ec7u d\u1ef1a tr\u00ean h\u00f3a ch\u1ea5t c\u1ee5 th\u1ec3 \u0111\u00f3 ch\u1ee9 kh\u00f4ng ph\u1ea3i d\u1ef1a tr\u00ean thu\u1eadt ng\u1eef chung l\u00e0 \u201cch\u1ea5t t\u1ea9y tr\u1eafng\u201d.\u201d<\/p>\n<\/section>\n

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N\u00ean l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u van cho ng\u00e0nh gi\u1ea5y v\u00e0 b\u1ed9t gi\u1ea5y nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Ch\u1ea5t li\u1ec7u ho\u1eb7c T\u00ednh n\u0103ng<\/th>\nNh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t th\u00f4ng th\u01b0\u1eddng<\/th>\nKi\u1ec3m tra tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn<\/th>\n<\/tr>\n<\/thead>\n
Th\u00e9p cacbon<\/td>\nSteam, condensate and compatible utility service<\/td>\nCorrosion allowance, coating and water chemistry<\/td>\n<\/tr>\n
Th\u00e9p kh\u00f4ng g\u1ec9<\/td>\nWater, selected chemicals and corrosive environments<\/td>\nGrade, chloride level, temperature and crevice risk<\/td>\n<\/tr>\n
Th\u00e9p kh\u00f4ng g\u1ec9 hai pha<\/td>\nHigher strength and improved resistance in selected corrosive services<\/td>\nChemical composition, welding and project specification<\/td>\n<\/tr>\n
Nickel alloy or lined construction<\/td>\nSelected aggressive chemical or bleaching duties<\/td>\nExact chemical, concentration, temperature and liner limits<\/td>\n<\/tr>\n
Full-port or cavity-reduced bore<\/td>\nReduces locations where fiber and solids can collect<\/td>\nStock consistency, particle size and cleaning method<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/section>\n
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What Information Is Needed to Select a Pulp and Paper Valve?<\/h2>\n
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  1. X\u00e1c \u0111\u1ecbnh ph\u01b0\u01a1ng ti\u1ec7n:<\/strong> pulp stock, liquor, bleaching chemical, steam, water, wastewater or sludge.<\/li>\n
  2. Provide composition:<\/strong> chemical name, concentration, pH and known contaminants.<\/li>\n
  3. Define solids:<\/strong> fiber consistency, suspended-solids content, particle size and abrasiveness.<\/li>\n
  4. X\u00e1c nh\u1eadn c\u00e1c \u0111i\u1ec1u ki\u1ec7n:<\/strong> normal and maximum pressure, temperature, flow rate and velocity.<\/li>\n
  5. State the duty:<\/strong> isolation, throttling, non-return, automated sequencing or emergency shutdown.<\/li>\n
  6. Specify operation:<\/strong> manual, electric or pneumatic actuator, cycle frequency and fail position.<\/li>\n
  7. List standards:<\/strong> required design, testing, material, inspection and leakage standards.<\/li>\n<\/ol>\n

    General industrial valve design may be specified to requirements such as ASME B16.34<\/a>. For process context, the American Forest & Paper Association kraft-process overview<\/a> explains the roles of white, black and green liquors. The U.S. EPA pulp and paper effluent guidelines<\/a> provide official background for mill wastewater systems.<\/p>\n<\/section>\n

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    Pulp and Paper Valve FAQs<\/h2>\n

    What is the best valve for pulp stock?<\/h3>\n

    There is no single best valve for every stock line. A suitable valve normally has an open flow path, few cavities and a closure design that resists fiber packing. Stock consistency, pressure, velocity and required control function determine the final choice.<\/p>\n

    Can a standard ball valve handle black liquor?<\/h3>\n

    Only after its body, seat, cavity, packing and trim are checked against liquor concentration, temperature and solids. Concentrated black liquor can create corrosion, scale and operating-torque problems that a general-purpose ball valve may not tolerate.<\/p>\n

    Which valve material is suitable for bleaching chemicals?<\/h3>\n

    The material depends on the exact bleaching chemical, concentration, temperature and contamination. Stainless steel, duplex steel, nickel alloys or lined construction may be considered, but compatibility must be verified for the stated process.<\/p>\n

    Why do valves become difficult to operate in stock lines?<\/h3>\n

    Fiber and solids can collect in cavities, around the seat or near the stem. Scaling, dried stock, an unsuitable bore and insufficient actuator torque can all increase operating resistance.<\/p>\n

    What data should be sent with an RFQ?<\/h3>\n

    Send the valve type, size, pressure class, connection, medium composition, stock consistency, pressure, temperature, material, seat, actuator, leakage requirement and applicable standards.<\/p>\n<\/section>\n

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    Discuss Your Pulp and Paper Valve Application<\/h2>\n

    WDL Valve can review your medium, stock consistency, chemical concentration and operating conditions to recommend an appropriate valve type, material, seat and actuation arrangement.<\/p>\n

    Li\u00ean h\u1ec7 v\u1edbi WDL Valve<\/a><\/p>\n<\/section>\n

     <\/p>\n