{"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":"%d0%bf%d0%bd%d0%b5%d0%b2%d0%bc%d0%b0%d1%82%d0%b8%d1%87%d0%b5%d1%81%d0%ba%d0%b8%d0%b9-%d0%b2%d0%b0%d0%ba%d1%83%d1%83%d0%bc%d0%bd%d1%8b%d0%b9-%d0%ba%d0%bb%d0%b0%d0%bf%d0%b0%d0%bd","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/ru\/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 \u0421\u043a\u0430\u0447\u0430\u0442\u044c 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
Position in the system<\/th>\nWhat the valve does there<\/th>\n<\/tr>\n<\/thead>\n
Fore-line \/ roughing line isolation<\/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
Vacuum pump isolation<\/strong><\/td>\nShutting a pump out of the line so it can be serviced or swapped without venting the whole system.<\/td>\n<\/tr>\n
Gauge isolation<\/strong><\/td>\nProtecting a vacuum gauge during rough-down or venting.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u2190 \u041f\u0440\u043e\u0432\u0435\u0434\u0438\u0442\u0435 \u043f\u0430\u043b\u044c\u0446\u0435\u043c \u043f\u043e \u0442\u0430\u0431\u043b\u0438\u0446\u0435, \u0447\u0442\u043e\u0431\u044b \u0443\u0432\u0438\u0434\u0435\u0442\u044c \u0432\u0441\u0435 \u0441\u0442\u043e\u043b\u0431\u0446\u044b \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

\u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u041f\u0443\u043d\u043a\u0442<\/th>\n\u0422\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440\u0438\u0441\u0442\u0438\u043a\u0438<\/th>\n<\/tr>\n<\/thead>\n
\u0422\u0438\u043f<\/td>\nTwo-piece vacuum ball valve, pneumatically actuated (V-2VN \/ V-2BN-ISOK)<\/td>\n<\/tr>\n
\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u043a\u043e\u0440\u043f\u0443\u0441\u0430<\/td>\nASTM A351 CF8M (\u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 316)<\/td>\n<\/tr>\n
\u041f\u043e\u0434\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/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
\u041f\u043e\u0440\u0442<\/td>\nFull port on all sizes<\/td>\n<\/tr>\n
Seat & seal<\/td>\nPTFE<\/td>\n<\/tr>\n
\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u0442\u0435\u043c\u043f\u0435\u0440\u0430\u0442\u0443\u0440\u0430<\/td>\nValve \u221220 \u00b0C to +180 \u00b0C \u00b7 Actuator \u221220 \u00b0C to +80 \u00b0C<\/td>\n<\/tr>\n
\u041f\u0440\u0438\u0432\u043e\u0434<\/td>\nRack-and-pinion, aluminium alloy body, double acting (DA) or spring return (SR)<\/td>\n<\/tr>\n
\u041f\u043e\u0434\u0430\u0447\u0430 \u0432\u043e\u0437\u0434\u0443\u0445\u0430<\/td>\n4\u20138 \u0431\u0430\u0440 (\u043e\u043a\u043e\u043b\u043e 58\u2013116 \u0444\u0443\u043d\u0442\u043e\u0432 \u043d\u0430 \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u043d\u044b\u0439 \u0434\u044e\u0439\u043c)<\/td>\n<\/tr>\n
\u041a\u0440\u0435\u043f\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u0438\u0432\u043e\u0434\u0430<\/td>\nISO 5211 \u2014 the actuator bolts straight onto the valve, no bracket or coupling<\/td>\n<\/tr>\n
\u041f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u0440\u0443\u0436\u0438\u043d\u044b<\/td>\n\u041d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e \u0437\u0430\u043a\u0440\u044b\u0442\u044b\u0439 \u0438\u043b\u0438 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 \u2014 \u0443\u043a\u0430\u0436\u0438\u0442\u0435 \u043f\u0440\u0438 \u0437\u0430\u043a\u0430\u0437\u0435<\/td>\n<\/tr>\n
\u041f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u044b<\/td>\n\u042d\u043b\u0435\u043a\u0442\u0440\u043e\u043c\u0430\u0433\u043d\u0438\u0442\u043d\u044b\u0439 \u043a\u043b\u0430\u043f\u0430\u043d, \u0431\u043b\u043e\u043a \u043a\u043e\u043d\u0446\u0435\u0432\u044b\u0445 \u0432\u044b\u043a\u043b\u044e\u0447\u0430\u0442\u0435\u043b\u0435\u0439, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0435\u0440<\/td>\n<\/tr>\n
\u0421\u0435\u0440\u0432\u0438\u0441<\/td>\nAutomated isolation and sequencing on vacuum lines<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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