Knife gate valves · DN50–DN600
Ductile Iron Knife Gate Valve
Wafer-body knife gate valve in ductile iron, DN50 to DN600. Rising stem with a handwheel or lever, or a pneumatic cylinder on the same yoke.
- Size range
- DN50, DN65, DN80 … DN600
- Body material
- Ductile iron, painted
- Body style
- Wafer, lugged
- Gate
- Knife gate, rising stem
This is an inquiry basket, not a checkout. You send the list, we confirm price, outlet bore and lead time in writing.
1 pcminimum order
Freesample for first order
OEMneutral packing
About this model
This is the wafer pattern. The body is thin enough to sit between two line flanges and the lugs on the port take the through-bolts, so the valve adds almost no face-to-face length. Sizes run from DN50 to DN600, with DN65 and DN80 in the same series. The knife gate rides on a rising stem, which means the exposed stem length tells the operator how far the gate has travelled.
One body takes either actuator. Manual versions come with a handwheel or a lever; the pneumatic version puts a cylinder on the same yoke and the port pattern does not change. That matters when a line is converted later — the valve that comes out and the valve that goes in bolt to the same holes.
Flange drilling is confirmed against your drawing before the order is released. Send the standard you work to and the medium, and the seat and gland packing are fixed from that rather than from a catalogue default.
Design features
- DN50 to DN600 in one series, DN65 and DN80 included
- Ductile iron body, painted; wafer pattern with lugged ports
- Rising stem with a bolted gland, readable gate position
- Handwheel, lever or pneumatic cylinder on the same yoke
- Actuator can be changed without touching the flange drilling
- Flange standard, seat and packing confirmed per order
Technical data
| Size range | DN50, DN65, DN80 … DN600 |
|---|---|
| Body material | Ductile iron, painted |
| Body style | Wafer, lugged |
| Gate | Knife gate, rising stem |
| Stem seal | Bolted gland |
| Actuation | Handwheel, lever, or pneumatic cylinder |
| Connection | Wafer body, bolts between the line flanges |
| Flange standard | Confirmed against your drawing before order |
Applications
- Water and wastewater — isolation on sludge and grit lines
- Pulp and paper — stock and coating circuits
- Mining and mineral processing — slurry lines
- Chemical — stainless version for corrosive media
- Power and steel — ash handling and dust collection
Packing
Port faces boarded, stem wrapped, actuator braced. Carton for the smaller sizes and a case above DN200. Neutral packing as standard; private label available.
Custom options
Tube and stem lengths outside the standard range, alternative seal materials and private labelling are quoted per order. Send the drawing or the dimensions you need and we will confirm what is possible before quoting.