Knife Gate Valve
Face to face dimension
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Thin-typed FIFD（MSS Conformance）
Full-Lug typed with light weight
All made of stainless, high quality at low cost. |
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As per the name of knife, the knife gate valve has advantages to shut off water, various slurries, powdery materials, solid materials and pulp stocks, which are generally categorized as material being seemed difficult to handle.
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In response to kinds / purposes of the fluid, the knife gate valve is extensively available in choosing one out of the following three materials: metal, teflon and rubber.
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Structure and Features
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| 1.Flange-typed box made in cast steel |
| With a short length between pipes and the flange-typed box made in cast steel, the knife gate valve has advantages to be light in weight, space saving for piping operation and easy alignment. The box and yoke for the valve are made in stainless cast steel with property of anticorrosion. Suit to flange as standard: JIS 5K/10K. |
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| 2.Disc made in stainless |
| The disc is of stainless with thick board in which the both sides of the disc are processed as flat surface and the edge part of the disc is also processed in shape of knife in order to cut off the fluids like slurry or fibered material. |
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| 3.Raised face seat |
| With metal seat under the distinctive shape and structure, the knife gate valve has advantages to smoothly control even the material like slurry or liquid included small amount of solid material. With Teflon / rubber seat, the knife gate valve has advantages to completely close. |
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| 4.Disc guide |
| The knife gate valve includes a disc guide inside the box to sustain the disc as well as to retain its sealing property. |
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| 5.Cylinder rod |
| The rod is processed in chrome plating. |
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| 6.Gland packing |
| The gland packing is made of asbestos-free in order to effectively/securely seal. |
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| 7.Operational method |
| Handle (round) type, electric type, pneumatic type and hydraulic cylinder as actuator are available for the valve. |
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Production specification range ※We don't use harmful asbestos.
| Suit to flange |
JIS 5K/10K、ANSI 150Lb others |
| Size |
3B（80A）～24B（600A） |
| Intended fluid |
Pulp stock, mud water, slurry, fly ash, sludge, exhaust gas, sewage, plastic pellet, solid material |
| Maximum operating pressure |
0.98Mpa〈10kgf/cm2〉
Maximum differential pressure 0.49Mpa〈5kgf/cm2〉 |
| Pressure test |
1.08Mpa〈11kgf/cm2〉 |
| Operating temperature |
Metal seat 230℃
Teflon seat 150℃
EPDM seat 120℃
NBR seat 80℃ |
| Material |
box SCS13
Body SUS304
Rod SUS304
Seat SCS13、PTFE、EPDM、NBR |
| Operational method |
Manual (round handle) type, electric type, pneumatic type, hydraulic cylinder type |
※Please feel free to contact us in terms of special material as well as special specification.
※Slide gate made of steel plate in welded-structure is also available
| ※Please feel free to inform us in terms of the following specification |
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Impurities (kind or property if the impurities are included)
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Operating pressure (normal / maximum)
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Operating temperature (normal / maximum)
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Accessories if necessary
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Position for installation
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Others
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Electric-powered knife gate valve for rainwater treatment facility
Rainwater, Reuse
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| ■Box |
| Box made of steel cast iron |
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| ■Disc |
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Disc made of stainless
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| ■Bonnet structure |
| Bonnet structure and rod seal method to enhance a seal property of gland packing |
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| ■Seat |
| EPDM as material |
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| ■Actuator |
Light weight by way of rack and pinion structure
With proper selection of actuator, the electric-powered KGV is available under differential pressure more than 0.5Mpa. |
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Standard specification
| Suit to flange |
JIS 10K |
| Size |
100A～350A |
| Face to face dimension |
MSS SP-81 (Complied with table A1) |
| Maximum operating pressure |
0.2Mpa |
| Maximum operating temperature |
60℃ |
| Operational method |
AC100/AC200V（Single phase） |
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