柱塞截止閥
UJ41H柱塞截止閥,閥門型號。由于密封環(huán)采用回彈性強,耐磨性高的無毒新型密封材料,所以密封可靠,經久耐用。從而提高了的使用壽命。結合柱塞閥的無泄漏有點和截止閥啟閉快的特點,成為一種結構新穎,用途廣泛的新產品。
產品結構
截止閥是由閥體、閥蓋、閥桿、柱塞、 導向環(huán)、密封圈、手輪等零部件組成。
UJ41H工作原理
當旋轉手輪時,通過閥桿帶動柱塞沿導向環(huán)上下運動,使柱塞端部斜錐面與閥座錐面分離或吻合完成閥門的開啟或關閉。 在閥門中柱塞與密封圈之間采用過盈配合,通過調節(jié)中法蘭螺栓把緊力,使密封圈壓縮所產生的側向力與閥體中孔面及柱塞外圓密封,從而保證了閥門的密封性,杜絕了外泄漏。
屬于強制密封式閥門,所以在閥門關閉時,必須向閥瓣施加壓力,以強制密封面不泄漏。當介質由閥瓣下方進入閥門時,操作力所需要克服的阻力,是閥桿和填料的摩擦力與由介質的壓力所產生的推力,關閥門的力比開閥門的力大,所以閥桿的直徑要大,否則會發(fā)生閥桿頂彎的故障。
| 公稱壓力PN Nominal pressure | 1.6 | 25 | 4.0 | 6.4 | 10.0 | MPa | 殼體試驗壓力Shell test pressure | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | 高壓密封試驗壓力High pressure seat test | 1.76 | 2.75 | 4.4 | 7.04 | 11.0 | 低壓氣密封試驗壓力Low pressure seat test | 0.5~0.7 | 適用介質Applicable medium | C水、油品、蒸汽 P硝酸類 R醋酸類 Water,oil,steam Nitric acid Acetic acid | 適用溫度Applicable temperature | ≤200℃ |
主要尺寸及重量Main dimensions and weight U41S U41F U41SF U41SM U41X US41S PN | DN | L | H | D | D1 | D2 | b | f | z-φd | 重量(kg) | 1.6MPa | 15 | 130 | 128 | 95 | 65 | 45 | 14 | 2 | 4-14 | 3 | | 20 | 150 | 165 | 105 | 75 | 55 | 16 | 2 | 4-14 | 5 | | 25 | 160 | 190 | 115 | 85 | 65 | 16 | 2 | 4-14 | 7 | | 32 | 180 | 216 | 135 | 100 | 78 | 18 | 2 | 4-18 | 8 | | 40 | 200 | 236 | 245 | 110 | 85 | 18 | 3 | 4-18 | 12 | | 50 | 230 | 250 | 160 | 125 | 100 | 20 | 3 | 4-18 | 16 | | 65 | 290 | 255 | 180 | 145 | 120 | 20 | 3 | 4-18 | 22 | | 80 | 310 | 255 | 195 | 160 | 135 | 22 | 3 | 8-18 | 27 | | 100 | 350 | 259 | 215 | 180 | 155 | 24 | 3 | 8-18 | 40 | | 125 | 400 | 352 | 245 | 210 | 185 | 26 | 3 | 8-18 | 72 | | 150 | 480 | 362 | 280 | 240 | 210 | 28 | 3 | 8-23 | 97 | | 200 | 600 | 385 | 335 | 295 | 265 | 30 | 3 | 12-23 | 205 | 2.5MPa | 15 | 130 | 133 | 95 | 65 | 45 | 16 | 2 | 4-14 | 4 | 4.0MPa | 20 | 150 | 178 | 105 | 75 | 55 | 16 | 2 | 4-14 | 6 | | 25 | 160 | 180 | 115 | 85 | 65 | 16 | 2 | 4-14 | 7 | | 32 | 180 | 195 | 135 | 100 | 78 | 18 | 2 | 4-18 | 10 | | 40 | 200 | 220 | 145 | 110 | 85 | 18 | 3 | 4-18 | 13 | | 50 | 230 | 250 | 160 | 125 | 100 | 20 | 3 | 4-18 | 17 | | 65 | 290 | 272 | 180 | 145 | 120 | 22 | 3 | 8-18 | 24 | | 80 | 310 | 275 | 195 | 160 | 135 | 22 | 3 | 8-18 | 33 | | 100 | 350 | 312 | 230 | 190 | 160 | 24 | 3 | 8-23 | 49 | | 125 | 400 | 365 | 270 | 220 | 188 | 28 | 3 | 8-25 | 87 | | 150 | 480 | 410 | 300 | 250 | 218 | 30 | 3 | 8-25 | 115 | | 200 | 600 | 450 | 360/375 | 310/320 | 278/282 | 34/38 | 3 | 12-25/30 | 210 | 6.4MPa | 15 | 170 | 145 | 105 | 75 | 55 | 18 | 2 | 4-14 | 5 | | 20 | 190 | 195 | 125 | 90 | 68 | 20 | 2 | 4-18 | 7 | | 25 | 210 | 202 | 135 | 100 | 78 | 22 | 2 | 4-18 | 8 | | 32 | 230 | 226 | 150 | 110 | 82 | 24 | 2 | 4-23 | 12 | | 40 | 260 | 239 | 165 | 125 | 95 | 24 | 3 | 4-23 | 15 | | 50 | 300 | 265 | 175 | 135 | 105 | 26 | 3 | 4-23 | 19 | | 65 | 340 | 287 | 200 | 160 | 130 | 28 | 33 | 8-23 | 26 | | 80 | 380 | 301 | 210 | 170 | 140 | 30 | 3 | 8-23 | 37 | | 100 | 430 | 346 | 250 | 200 | 168 | 32 | 3 | 8-25 | 55 | 10.0MPa | 15 | 170 | 145 | 105 | 75 | 55 | 20 | 2 | 4-14 | 82 | | 20 | 190 | 195 | 125 | 90 | 68 | 22 | 2 | 4-18 | 7 | | 25 | 210 | 202 | 135 | 100 | 78 | 24 | 2 | 4-18 | 8 | | 32 | 230 | 226 | 150 | 110 | 82 | 24 | 2 | 4-23 | 12 | | 40 | 260 | 239 | 165 | 125 | 95 | 26 | 3 | 4-23 | 15 | | 50 | 300 | 265 | 175 | 145 | 112 | 28 | 3 | 4-25 | 19 | | 65 | 340 | 287 | 220 | 170 | 138 | 32 | 3 | 8-25 | 26 | | 80 | 380 | 301 | 230 | 180 | 148 | 34 | 3 | 8-25 | 37 | | 100 | 430 | 346 | 265 | 210 | 172 | 38 | 3 | 8-30 | 55 |
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