{"id":3850,"date":"2025-10-17T09:24:34","date_gmt":"2025-10-17T01:24:34","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&p=3850"},"modified":"2026-09-12T01:47:47","modified_gmt":"2026-09-11T17:47:47","slug":"%e6%b0%a3%e5%8b%95%e7%9c%9f%e7%a9%ba%e9%96%a5","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/zh\/product\/pneumatic-vacuum-valve\/","title":{"rendered":"Vacuum Rated Ball Valve, Pneumatic \u2013 NW50 KF (2\u2033), ISO-K DN80 \/ DN100, 316 Two-Piece (V-2VN \/ V-2BN-ISOK)"},"content":{"rendered":"
PDF<\/span>V-2VN<\/strong>NW50 ISO-KF (2\u2033) \u00b7 Dimension Sheet \u4e0b\u8f09 PDF \u2193<\/strong><\/span><\/a><\/div>\n

This vacuum rated ball valve is a two-piece 316 stainless steel pneumatic ball valve built for vacuum lines. It comes with two end styles: NW50 (ISO-KF \/ KF50) clamp flanges at 2\u2033 (model V-2VN), or ISO-K flanges at ISO80 (DN80, 3\u2033) and ISO100 (DN100, 4\u2033) (model V-2BN-ISOK). Both share the same full-port body, PTFE seats and an ISO 5211 pad that takes a rack-and-pinion air actuator, double acting (DA) or spring return (SR), so the valve opens and closes on a signal instead of by hand.<\/p>\n

Where This Vacuum Pump Isolation Valve Belongs in the System<\/h2>\n

A vacuum ball valve has a clear place in a vacuum system: on the pump side. Here is where this valve is used and what it does there.<\/p>\n

\n\n\n\n\n\n\n\n
\u5728\u7cfb\u7d71\u4e2d\u7684\u4f4d\u7f6e<\/th>\nWhat the valve does there<\/th>\n<\/tr>\n<\/thead>\n
\u524d\u7aef\u7dda\uff0f\u7c97\u52a0\u5de5\u7dda\u9694\u96e2<\/strong><\/td>\nBetween the pump and the chamber, on the roughing or backing line: this is what a vacuum ball valve is for.<\/td>\n<\/tr>\n
\u771f\u7a7a\u6cf5\u9694\u96e2<\/strong><\/td>\n\u5c07\u6cf5\u6d66\u5f9e\u7ba1\u7dda\u4e2d\u9694\u96e2\uff0c\u4ee5\u4fbf\u5728\u4e0d\u9700\u5c0d\u6574\u500b\u7cfb\u7d71\u9032\u884c\u6392\u6c23\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u7dad\u4fee\u6216\u66f4\u63db\u3002.<\/td>\n<\/tr>\n
\u91cf\u5177\u9694\u96e2<\/strong><\/td>\n\u5728\u7c97\u62bd\u6216\u6392\u6c23\u904e\u7a0b\u4e2d\u4fdd\u8b77\u771f\u7a7a\u8a08\u3002.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2190 \u6ed1\u52d5\u8868\u683c\u4ee5\u67e5\u770b\u6240\u6709\u6b04\u4f4d \u2192<\/p>\n

For isolating a pump, a fore-line or a gauge, a ball valve is the straightforward, fast, full-bore answer, and with a pneumatic actuator it does that on a signal.<\/p>\n

\u4e3b\u8981\u6280\u8853\u898f\u683c<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u9805\u76ee<\/th>\n\u898f\u683c<\/th>\n<\/tr>\n<\/thead>\n
\u985e\u578b<\/td>\nTwo-piece vacuum ball valve, pneumatically actuated (V-2VN \/ V-2BN-ISOK)<\/td>\n<\/tr>\n
\u8eca\u8eab\u6750\u8cea<\/td>\nASTM A351 CF8M\uff08316 \u4e0d\u93fd\u92fc\uff09<\/td>\n<\/tr>\n
\u9023\u63a5<\/td>\nNW50 (ISO-KF \/ KF50) clamp flange \u2014 2\u2033 (V-2VN)
\nISO-K vacuum flange \u2014 ISO80 (DN80, 3\u2033) or ISO100 (DN100, 4\u2033) (V-2BN-ISOK)<\/td>\n<\/tr>\n
\u6e2f\u53e3<\/td>\nFull port on all sizes<\/td>\n<\/tr>\n
\u5ea7\u5708\u8207\u5bc6\u5c01\u5708<\/td>\nPTFE<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6eab\u5ea6<\/td>\nValve \u221220 \u00b0C to +180 \u00b0C \u00b7 Actuator \u221220 \u00b0C to +80 \u00b0C<\/td>\n<\/tr>\n
\u81f4\u52d5\u5668<\/td>\nRack-and-pinion, aluminium alloy body, double acting (DA) or spring return (SR)<\/td>\n<\/tr>\n
\u4f9b\u6c23<\/td>\n4 \u2013 8 \u5df4\uff08\u7d04 58 \u2013 116 \u78c5\/\u5e73\u65b9\u82f1\u540b\uff09<\/td>\n<\/tr>\n
\u81f4\u52d5\u5668\u5b89\u88dd<\/td>\nISO 5211 \u2014 \u57f7\u884c\u5668\u53ef\u76f4\u63a5\u9396\u56fa\u65bc\u95a5\u9ad4\u4e0a\uff0c\u7121\u9700\u652f\u67b6\u6216\u806f\u8ef8\u5668<\/td>\n<\/tr>\n
\u5f48\u7c27\u56de\u4f4d\u4f4d\u7f6e<\/td>\n\u5e38\u9589\u6216\u5e38\u958b \u2014 \u8a02\u8cfc\u6642\u8acb\u8a3b\u660e<\/td>\n<\/tr>\n
\u9078\u9805<\/td>\n\u96fb\u78c1\u95a5\u3001\u9650\u4f4d\u958b\u95dc\u76d2\u3001\u5b9a\u4f4d\u5668<\/td>\n<\/tr>\n
\u670d\u52d9<\/td>\n\u5728\u771f\u7a7a\u7ba1\u7dda\u4e0a\u9032\u884c\u81ea\u52d5\u5206\u96e2\u8207\u5b9a\u5e8f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Vacuum Rated Valve Design: Why a Pneumatic Ball Valve<\/h2>\n