STAFSJÖ MVE

Stafsjö knife gate valve MVE is delivered with either hand wheel, pneumatic, hydraulic cylinder or electric actuator. Pneumatic is also available as a single-acting actuator (spring open or close) or solution with accumulator tank for Fail Safe solution.
 
It is a uni-directional knife gate valve that also withstands back pressure. Available in a number of dimensions, material qualities and is widely used for industrial purposes where there are requirements for full bore.
 
Contact us for more information about these variants.
Properties
  • Uni-directional
  • Wafer execution
  • Seat easily replaced without disassembling the valve
  • Full bore
  • Low life cycle cost
  • Non-rising stem
  • Directional
  • V-port and deflection cone on request
Applications
  • Pulp and paper (up till 8% mass concentration)
  • Water / waste water
  • Food industry
  • Chemical industry
  • Biogas plants
  • Fishing industry
  • Offshore
  • Mining and bulk handling
Technical data
  • Leakage rate acc. to EN 12266, rate A
  • Construction length acc. to producers standard
  • Flange connection acc. to EN 1092 (ANSI, JIS, BS on request)
Technical documentation
  • PED 97/23/EC
  • ATEX 2014/34/EU Group II on request
  • Certificate EN 10204-3.1 on request
Technical table
 
Body: Stainless steel 1.4408
Gate: Stainless steel 1.4408
Seat: See variants
Gland packing: TwinPack
Seat: NBR
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08110110 50 10, 16 16 41 Hand wheel w / ball
08110111 65 10, 16 16 41 Hand wheel w / ball
08110112 80 10, 16 16 51 Hand wheel w / ball
08110113 100 10, 16 16 51 Hand wheel w / ball
08110114 125 10, 16 16 56 Hand wheel w / ball
08110115 150 10, 16 10 60 Hand wheel w / ball
08110116 200 10 10 60 Hand wheel w / ball
08110117 250 10 10 69 Hand wheel w / ball
08110118 300 10 10 78 Hand wheel w / ball
08110119 350 10 6 78 Hand wheel w / ball
08110120 400 10 6 89 Hand wheel w / ball
08110122 500 10 6 114 Hand wheel w / ball
08110123 600 10 6 114 Hand wheel w / ball
Seat: PTFE w/nitril Back-up
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08110410 50 10, 16 16 41 Hand wheel w / ball
08110411 65 10, 16 16 41 Hand wheel w / ball
08110412 80 10, 16 16 51 Hand wheel w / ball
08110413 100 10, 16 16 51 Hand wheel w / ball
08110414 125 10, 16 16 56 Hand wheel w / ball
08110415 150 10, 16 10 60 Hand wheel w / ball
08110416 200 10 10 60 Hand wheel w / ball
08110417 250 10 10 69 Hand wheel w / ball
08110418 300 10 10 78 Hand wheel w / ball
08110419 350 10 6 78 Hand wheel w / ball
08110420 400 10 6 89 Hand wheel w / ball
08110421 450 10 6 89 hand wheel w / ball
08110422 500 10 6 114 hand wheel w / ball
08110423 600 10 6 114 hand wheel w / ball
Seat: NBR, mounted with pneumatic SC cylinder w/magnet piston
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08114110 50 10, 16 16 41 SC 100
08114111 65 10, 16 16 41 SC 100
08114112 80 10, 16 16 51 SC 100
08114113 100 10, 16 16 51 SC 100
08114114 125 10, 16 16 56 SC 100
08114115 150 10, 16 10 60 SC 100
08114116 200 10 10 60 SC 160
08114117 250 10 10 69 SC 160
08114118 300 10 10 78 SC 160
08114119 350 10 6 78 SC 200
08114120 400 10 6 89 SC 200
08114122 500 10 6 114 SC 200
08114123 600 10 6 114 SC 250
Seat: PTFE w/nitril Back-up, mounted with pneumatic SC cylinder w/magnet piston
Product number Dimension Connection Max working pressure Bar Construction length Mounted
08114410 50 10, 16 16 41 SC 100
08114411 65 10, 16 16 41 SC 100
08114412 80 10, 16 16 51 SC 100
08114413 100 10, 16 16 51 SC 100
08114414 125 10, 16 16 56 SC 100
08114415 150 10, 16 10 60 SC 100
08114416 200 10 10 60 SC 160
08114417 250 10 10 69 SC 160
08114418 300 10 10 78 SC 160
08114419 350 10 6 78 SC 200
08114420 400 10 6 89 SC 200
08114422 500 10 6 114 SC 200
08114423 600 10 6 114 SC 250