M Series (Cast Iron / Cast Steel Body)

Regent has developed a range of special design knife gate valves with the help of its dedicated and technical professional team.

Regent knife gate valves M-series is a step forward in the direction which enhances customer’s profitability and satisfaction due to reduced costs.

valve details:
model m-sereis
operation handwheel / pneumatic
size 40 mm to 800 mm
valve type metal to metal, uni-directional
body & gland cover cast iron / s.g. iron / ductile iron / cast steel
gate material ss 304 / ss 316 / ss 316l
seat material integral with body / ss o-ring
bush aluminium phosphores bronze / en8
yoke mild steel epoxy coated
handwheel press steel, powder coated / c.i. epoxy coated
working pressure 2” to 10” 10bar, 12” to 16” 6bar, 18” 5 bar & 20” to 24” 4bar
end connection lug type suitable for bs 10 table ‘e’, pn10, ansi b16.5 class 150# , bs 10 table ‘d’
painting except for stainless steel components, all exteriors will be painted with blue epoxy paint.
actuator details:
barrel alluminium / stainless steel
end cover alluminium pressure die cast / c.i.
piston rod stainless steel
seals nitrile (viton on request)
  • knife gate valves is one of the few application-specific designs among industrial valves. it basically features a design that ensures minimum contact between moving parts of the valves. this is achieved by having a gate that is practically held between layers of gland packing without touching the body parts during most of its travels.
  • the seating itself is accomplished with a non-sliding motion aided by jams located in the body. avoiding sliding contact between gate and body permits this valve to handle abrasive particles present in the media much better than conventional designs.
  • another feature is the bevelled bottom edge of the gate (from which it derives the ‘knife’ in its name) which allows positive closure of the gate even when solid particles settles at the bottom of the body.
  • in handling abrasive media, deflection cones are generally used in order to avoid direct impingement of
    the media on the seat surface; hard facing of seat part is also sometimes used which involves stelliting of the seat or gate or complete intruding of body and gate.
  • another feature is the purge connection which let in suitable fluids at pressures higher than line pressure
    to clean seating surfaces (body purges) and packing area (chest purges). this minimises abrasive wear and tear
    during opening and closure of valve.

knife gate valves are excellent hopper isolation valves with their ability to cut through flowing powders and close by dislodging any material in the seating area. this is also perhaps the only valve design which can tolerate differential thermal expansion of its parts without affecting its functions, thus making an ideal choice for handling high temperature media.