{"id":3849,"date":"2025-10-17T09:21:39","date_gmt":"2025-10-17T01:21:39","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&p=3849"},"modified":"2026-07-17T13:25:39","modified_gmt":"2026-07-17T05:25:39","slug":"%d1%80%d1%83%d1%87%d0%bd%d0%be%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\/manual-vacuum-valve\/","title":{"rendered":"\u0412\u0430\u043a\u0443\u0443\u043c\u043d\u044b\u0439 \u0448\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u0440\u0430\u043d \u0441 \u0440\u0443\u0447\u043d\u044b\u043c \u043f\u0440\u0438\u0432\u043e\u0434\u043e\u043c \u0438 \u0432\u0435\u0440\u0445\u043d\u0438\u043c \u0440\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435\u043c, \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 316 \u2014 NW16\/25\/40\/50 KF \u0438 ISO80, \u0442\u0440\u0435\u0445\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u043d\u044b\u0439"},"content":{"rendered":"
\nPDF<\/span>V-3A \u00ab\u0412\u0430\u043a\u0443\u0443\u043c\u00bb<\/span>\u0420\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u00b7 KF \/ ISO-K \u00b7 \u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432<\/span>\u0421\u043a\u0430\u0447\u0430\u0442\u044c \u2193<\/span><\/a>
\nPDF<\/span>V-3AM NW<\/span>\u041a\u0440\u0435\u043f\u043b\u0435\u043d\u0438\u0435 \u043f\u043e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u0443 ISO 5211 \u00b7 NW\/KF \u00b7 \u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432<\/span>\u0421\u043a\u0430\u0447\u0430\u0442\u044c \u2193<\/span><\/a>\n<\/div>\n

\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0430<\/h2>\n

This vacuum ball valve is a three-piece, full-port valve in cast 316 stainless steel (ASTM A351 CF8M) with PTFE seat and gaskets, built for vacuum and negative-pressure isolation. Flange options cover KF (NW16, NW25, NW40, NW50) and ISO-K (ISO80), sizes 1\/2\u2033 to 2-1\/2\u2033 \u2014 the clamp-style flanges connect and open without tools, the way vacuum lines are built.<\/p>\n

Two builds share the same body: the V-3A<\/b> with a stainless lever for manual operation, and the V-3AM<\/b> with an ISO 5211 direct-mount pad and reinforced stem seal (Viton O-ring plus PTFE packing) that takes a pneumatic or electric actuator without brackets. Need larger or automated vacuum valves? See the \u043f\u043d\u0435\u0432\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0432\u0430\u043a\u0443\u0443\u043c\u043d\u044b\u0439 \u0448\u0430\u0440\u043e\u0432\u043e\u0439 \u043a\u0440\u0430\u043d (ISO-K DN80\/DN100)<\/a>, the two-piece manual vacuum ball valve (ISO100)<\/a>, \u0438\u043b\u0438 \u043f\u0440\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0432\u0441\u0435 \u0432\u0430\u043a\u0443\u0443\u043c\u043d\u044b\u0435 \u043a\u043b\u0430\u043f\u0430\u043d\u044b<\/a>.<\/p>\n

Manual or Direct-Mount?<\/h2>\n\n\n\n\n\n\n\n
<\/th>\nV-3A (manual)<\/th>\nV-3AM (direct-mount)<\/th>\n<\/tr>\n<\/thead>\n
\u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f<\/b><\/td>\nQuarter-turn stainless lever with locking plate<\/td>\nISO 5211 pad for a pneumatic or electric actuator \u2014 lever included for manual use<\/td>\n<\/tr>\n
Stem seal<\/b><\/td>\nPTFE packing<\/td>\nViton O-ring plus PTFE packing<\/td>\n<\/tr>\n
\u0418\u0434\u0435\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f<\/b><\/td>\nHand-operated isolation points<\/td>\nLines that are \u2014 or may later be \u2014 automated<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\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
\u0422\u0438\u043f<\/b><\/td>\nVacuum ball valve \u2014 three-piece, full port<\/td>\n<\/tr>\n
Models<\/b><\/td>\nV-3A (manual) \/ V-3AM (ISO 5211 direct-mount)<\/td>\n<\/tr>\n
\u0414\u0438\u0430\u043f\u0430\u0437\u043e\u043d \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432<\/b><\/td>\n1\/2\u2033 \u2013 2-1\/2\u2033<\/td>\n<\/tr>\n
\u0421\u0432\u044f\u0437\u0438<\/b><\/td>\nKF clamp flange (NW16 \/ NW25 \/ NW40 \/ NW50) or ISO-K (ISO80)<\/td>\n<\/tr>\n
\u041a\u043e\u0440\u043f\u0443\u0441, \u043a\u043e\u043b\u043f\u0430\u0447\u043e\u043a \u0438 \u0448\u0430\u0440\u0438\u043a<\/b><\/td>\nASTM A351 CF8M \u2014 the cast form of 316 stainless steel<\/td>\n<\/tr>\n
Seat & gaskets<\/b><\/td>\nPTFE<\/td>\n<\/tr>\n
\u0421\u0442\u0435\u0431\u0435\u043b\u044c<\/b><\/td>\nASTM A276 SS316 (V-3A); reinforced seal with Viton O-ring on V-3AM<\/td>\n<\/tr>\n
\u0421\u0435\u0440\u0432\u0438\u0441<\/b><\/td>\nVacuum and negative-pressure isolation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u044b<\/h2>\n

V-3A manual version \u2014 17 parts, matching the numbered circles \u2460\u2013\u2470 in the drawing below. The V-3AM direct-mount version shares the wetted parts and adds the Viton O-ring stem seal, Belleville washer and ISO 5211 hardware (20 parts \u2014 see its dimension sheet PDF).<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u041d\u0435\u0442.<\/th>\n\u0427\u0430\u0441\u0442\u044c<\/th>\n\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n\u0422\u0435\u043b\u043e<\/b><\/td>\nA351 CF8M<\/td>\n<\/tr>\n
2<\/td>\n\u041a\u0435\u043f\u043a\u0430<\/b><\/td>\nA351 CF8M<\/td>\n<\/tr>\n
3<\/td>\n\u041c\u044f\u0447<\/b><\/td>\nA351 CF8M<\/td>\n<\/tr>\n
4<\/td>\n\u041c\u0435\u0441\u0442\u043e<\/b><\/td>\nPTFE<\/td>\n<\/tr>\n
5<\/td>\n\u041f\u0440\u043e\u043a\u043b\u0430\u0434\u043a\u0430<\/b><\/td>\nPTFE<\/td>\n<\/tr>\n
6<\/td>\n\u0423\u043f\u043e\u0440\u043d\u0430\u044f \u0448\u0430\u0439\u0431\u0430<\/b><\/td>\nPTFE<\/td>\n<\/tr>\n
7<\/td>\n\u0421\u0442\u0435\u0431\u0435\u043b\u044c<\/b><\/td>\nA276 SS316<\/td>\n<\/tr>\n
8<\/td>\n\u0423\u043f\u0430\u043a\u043e\u0432\u043a\u0430<\/b><\/td>\nPTFE<\/td>\n<\/tr>\n
9<\/td>\n\u0421\u0430\u043b\u044c\u043d\u0438\u043a<\/b><\/td>\nSS304<\/td>\n<\/tr>\n
10<\/td>\n\u0428\u0438\u043f\u043e\u0432\u0438\u0434\u043d\u0430\u044f \u0448\u0430\u0439\u0431\u0430<\/b><\/td>\nAISI 301<\/td>\n<\/tr>\n
11<\/td>\n\u0420\u0443\u0447\u043a\u0430<\/b><\/td>\nSS304<\/td>\n<\/tr>\n
12<\/td>\n\u041f\u0440\u0443\u0436\u0438\u043d\u043d\u0430\u044f \u0448\u0430\u0439\u0431\u0430<\/b><\/td>\nSS304<\/td>\n<\/tr>\n
13<\/td>\n\u0411\u043e\u043b\u0442\u044b<\/b><\/td>\nAISI 304<\/td>\n<\/tr>\n
14<\/td>\n\u0428\u0430\u0439\u0431\u0430 \u0441 \u0431\u043e\u043b\u0442\u043e\u043c<\/b><\/td>\nAISI 304<\/td>\n<\/tr>\n
15<\/td>\nBolt nut<\/b><\/td>\nAISI 304<\/td>\n<\/tr>\n
16<\/td>\n\u0412\u0442\u0443\u043b\u043a\u0430 \u0440\u0443\u043a\u043e\u044f\u0442\u043a\u0438<\/b><\/td>\n\u0412\u0438\u043d\u0438\u043b\u043e\u0432\u0430\u044f \u0440\u0443\u043a\u043e\u044f\u0442\u043a\u0430<\/td>\n<\/tr>\n
17<\/td>\n\u0424\u0438\u043a\u0441\u0438\u0440\u0443\u044e\u0449\u0430\u044f \u043f\u043b\u0430\u0441\u0442\u0438\u043d\u0430<\/b><\/td>\nSS304<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0420\u0430\u0437\u043c\u0435\u0440\u044b (\u043c\u043c)<\/h2>\n
\n\"Three-piece
V-3A manual version shown. Letters match the columns below. Numbers \u2460\u2013\u2470 match the materials table above. Unit: mm.<\/figcaption><\/figure>\n

L, bore \u00d8d1, flange \u00d8d2 and flange thickness C are identical for both builds; H differs (lever vs mounting pad), and S is the V-3AM stem flat. Full drawings in the V-3A<\/a> \u0438 V-3AM<\/a> \u041b\u0438\u0441\u0442\u044b \u0441 \u0440\u0430\u0437\u043c\u0435\u0440\u0430\u043c\u0438 (PDF).<\/p>\n\n\n\n\n\n\n\n\n\n\n
Size \/ Flange<\/th>\nD1 (V-3A)<\/th>\nH (V-3A)<\/th>\nH (V-3AM)<\/th>\nL<\/th>\nBore \u00d8d1<\/th>\nFlange \u00d8d2<\/th>\nC<\/th>\nS (V-3AM)<\/th>\n<\/tr>\n<\/thead>\n
1\/2\u2033 NW16<\/b><\/td>\n103<\/td>\n56<\/td>\n38<\/td>\n92<\/td>\n17<\/td>\n30<\/td>\n2.3<\/td>\n9<\/td>\n<\/tr>\n
1\u2033 NW25<\/b><\/td>\n130<\/td>\n63<\/td>\n49<\/td>\n120<\/td>\n26<\/td>\n40<\/td>\n2.5<\/td>\n11<\/td>\n<\/tr>\n
1-1\/4\u2033 NW40<\/b><\/td>\n131<\/td>\n68<\/td>\n55<\/td>\n112<\/td>\n41<\/td>\n55<\/td>\n2.5<\/td>\n11<\/td>\n<\/tr>\n
1-1\/2\u2033 NW50<\/b><\/td>\n153<\/td>\n90<\/td>\n67<\/td>\n133<\/td>\n52<\/td>\n75<\/td>\n2.5<\/td>\n14<\/td>\n<\/tr>\n
2\u2033 NW50<\/b><\/td>\n194<\/td>\n98<\/td>\n75<\/td>\n146<\/td>\n52<\/td>\n75<\/td>\n2.5<\/td>\n14<\/td>\n<\/tr>\n
2-1\/2\u2033 ISO80<\/b><\/td>\n225<\/td>\n109<\/td>\n105<\/td>\n209<\/td>\n83<\/td>\n110<\/td>\n2.5<\/td>\n17<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u041e\u0431\u043b\u0430\u0441\u0442\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0438 \u043c\u0435\u0441\u0442\u043e\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u044f<\/h2>\n