KNIFE GATE VALVE MV

Stafsjö’s knife gate valve MV can be used within a wide range of applications on both dry and wet media such as pulp stock up to 7% concentrations, sludge, slurry, biomass, water, ash, granulate and different kinds of waste.

The MV valve is modular designed and it can easily be customized in materials, with actuators and related automation accessories to different process conditions. As standard it is available in a stainless steel version and one in nodular iron, but it can also be supplied in a range of high alloy materials such as Duplex and 254 SMO. Stafsjö’s retainer ring system offers great flexibility and several seat material options. Up to DN 800 the MV holds a one piece valve body and from DN 900 it features a rigid two piece version.

Stafsjö’s gland box system with TwinPack braids ensures that no media reaches the surrounding environment. It can also be reinforced with a box bottom scraper or with a double gland for the most demanding applications.

The MV valve is available in size ranging from DN 50 up to DN 1600 (2” to 64”).

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Full Product Range – Technical Information

Main Dimensions

DN A B C D E F G H I1) J K L M2) N3) W4)
50 52 41 91 80 200 56 360 529 SC100 116 630 230 SA07.2 F10 A 7
65 64 41 107 80 200 65 380 549 SC100 130 650 250 SA07.2 F10 A 7
80 79 51 124 80 200 88 405 574 SC100 135 675 275 SA07.2 F10 A 8
100 103 51 154 80 200 102 453 622 SC100 155 723 323 SA07.2 F10 A 10
125 128 56 179 80 250 116 495 714 SC100 178 765 365 SA07.2 F10 A 13
150 153 60 204 80 250 130 550 769 SC100 205 820 420 SA07.2 F10 A 15
200 202 60 267 145 315 160 694 1009 SC160 268 1115 555 SA07.6 F10 A 31
250 250 69 320 145 315 192 779 1199 SC160 320 1250 640 SA07.6 F10 A 40
300 302 78 374 145 315 230 879 1299 SC160 375 1400 740 SA10.2 F10 A 55
350 332 78 419 175 400 210 993 1562 SC200 420 1550 820 SA10.2 F10 A 90
400 380 89 479 175 400 245 1083 1652 SC200 490 1690 910 SA10.2 F10 A 120
450 428 89 535 200 520 280 1180 1752 SC200 560 1820 990 SA10.2 F10 A 180
500 470 114 580 250 520 315 1333 2007 SC200 625 2028 1145 SA10.2 F10 A 245
600 560 114 680 260 635 370 1558 2360 SC250 740 2358 1370 SA10.2 F10 A 340
700 665 118 800 310 635 400 1750 2717 SC250 865 2650 1565 SA14.2 F14 A 460
750 710 118 860 305 635 430 1880 2791 SC320 930 2787 1635 SA14.2 F14 A 510
800 760 118 900 310 635 450 1970 2943 SC320 985 2970 1780 SA14.2 F14 A 600
900 855 118 1010 320 635 580 2220 3148 SC320 1160 3340 1985 SA14.6 F14 A 900
1000 950 150 1110 320 635 640 2400 3608 SC320 1280 3630 2215 SA14.6 F14 A 1500
1200 1200 150 1335 490 – 750 – – – 1500 4300 2860 SA16.2 F16 A 2160
1300 1300 147 1442 596 – 813 – – – 1626 4737 3020 SA16.2 F16 A 3300
1400 1422 180 1574 510 – 863 – – – 1726 4950 3224 SA16.2 F16 A 3300
1600 1560 190 1755 550 – 950 – – – 1900 5365 3453 SA16.2 F16 A 5000