{"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":"%e7%a9%ba%e5%9c%a7%e5%bc%8f%e7%9c%9f%e7%a9%ba%e3%83%90%e3%83%ab%e3%83%96","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/ja\/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 PDF\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9 \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 \u30c6\u30fc\u30d6\u30eb\u3092\u30b9\u30ef\u30a4\u30d7\u3057\u3066\u3059\u3079\u3066\u306e\u5217\u3092\u8868\u793a \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\u4ed5\u69d8<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u54c1\u76ee<\/th>\n\u4ed5\u69d8<\/th>\n<\/tr>\n<\/thead>\n
\u7a2e\u985e<\/td>\nTwo-piece vacuum ball valve, pneumatically actuated (V-2VN \/ V-2BN-ISOK)<\/td>\n<\/tr>\n
\u672c\u4f53\u7d20\u6750<\/td>\nASTM A351 CF8M (316 stainless steel)<\/td>\n<\/tr>\n
\u63a5\u7d9a<\/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
\u30dd\u30fc\u30c8<\/td>\nFull port on all sizes<\/td>\n<\/tr>\n
\u30b7\u30fc\u30c8\u3068\u30b7\u30fc\u30eb<\/td>\nPTFE<\/td>\n<\/tr>\n
\u52d5\u4f5c\u6e29\u5ea6<\/td>\nValve \u221220 \u00b0C to +180 \u00b0C \u00b7 Actuator \u221220 \u00b0C to +80 \u00b0C<\/td>\n<\/tr>\n
\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf<\/td>\nRack-and-pinion, aluminium alloy body, double acting (DA) or spring return (SR)<\/td>\n<\/tr>\n
\u7a7a\u6c17\u4f9b\u7d66<\/td>\n4\uff5e8 bar\uff08\u7d0458\uff5e116 psi\uff09<\/td>\n<\/tr>\n
\u30a2\u30af\u30c1\u30e5\u30a8\u30fc\u30bf\u306e\u53d6\u308a\u4ed8\u3051<\/td>\nISO 5211 \u2014 the actuator bolts straight onto the valve, no bracket or coupling<\/td>\n<\/tr>\n
\u30b9\u30d7\u30ea\u30f3\u30b0\u306e\u5fa9\u5e30\u4f4d\u7f6e<\/td>\n\u5e38\u9589\u307e\u305f\u306f\u5e38\u958b \u2014 \u3054\u6ce8\u6587\u306e\u969b\u306b\u3054\u6307\u5b9a\u304f\u3060\u3055\u3044<\/td>\n<\/tr>\n
\u30aa\u30d7\u30b7\u30e7\u30f3<\/td>\n\u96fb\u78c1\u5f01\u3001\u30ea\u30df\u30c3\u30c8\u30b9\u30a4\u30c3\u30c1\u30dc\u30c3\u30af\u30b9\u3001\u30dd\u30b8\u30b7\u30e7\u30ca\u30fc<\/td>\n<\/tr>\n
\u30b5\u30fc\u30d3\u30b9<\/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