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GKV305 Under Silo Special Knife Gate Valve is mainly used in the mining and food-processing industries. It is specially manufactured for an under silo assembly. Owing to blowout holes , it can remove dry products such as dust or grains, avoid the stuffing and the accumulating to jam the gate.
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UNDER SILO SPECIAL KNIFE GATE VALVES
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Size Range NPS 2" to 48",DN50 to DN 1200 |
Body Materials Ductile Iron, Carbon Steel, Stainless Steel |
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Maximum Allowable Operating Pressure NPS 2 to 12: 150psi / DN 50 to 300: 10bar NPS 14 to 24: 75psi / DN 350 to 600: 5bar |
Stem Materials 304 Stainless Steel
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Gate Materials 304, 316, 317 Stainless Steel, SAF 2507, SAF 2205, 17-4PH, Hastelloy® C, Monel® |
Seat Materials NR, EPDM, NBR, or FKM/FPM |
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Body Style Two Piece Bolted - Wafer |
Design Standard Manufacturer Standard |
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Seat Material Temperature Range Natural Rubber: 165°F / 74°C |
Testing standard Manufacturer Standard |
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Wiper Materials EPDM |
Actuator Options Handwheel, Bevel Gear, Pneumatic, Hydraulic, Electric |
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Face To Face MSS SP81 |
Applications Sugar, Pulp & Paper |
General Characteristics of Under Silo Special Knife Gate Valves
This knife gate valve is mainly used in the mining and food-processing industries. The dual elastomer valve seat and sliding door design facilitate self-cleaning and prevent medium accumulation. The durable ductile iron valve body adopts a compact plate design. When fully opened, the valve has a full diameter and no resistance to the pipeline medium.
Body Construction
The valve body is available in cast iron, stainless steel, aluminium, or aluminium with hard anodised coating, providing excellent abrasion resistance and preventing alumina formation on the surface.
Pressure & Temperature
Pressures: Please consult us for specific pressure ratings.
Temperature Limits:
Nitrile (NBR): up to 80°C
EPDM: up to 110°C
Compliance & Testing
Manufactured in accordance with the European Pressure Equipment Directive 97/23/CE, Category III, Module H (for DN50 to DN600).
Test procedures follow NF EN 12266-1, NF EN 12266-2, DN3230, and ISO 5208 standards, ensuring reliable performance under pressure.
Connection
Between flanges PN10, compatible with NFE 29203, BS450, ANSI B16.5, with optional ASA 150.
Highlights of Under Silo Special Knife Gate Valves
Steel Reinforced Body: No retention zones for media.
Wide Body Design: Simplifies product evacuation and flow.
Sharp Chamfered Gate: Ensures straight, precise cutting of bulk material.
Gate Guidance via PTFE Rubbing Plate: Reduces friction for smoother operation.
Scraper-Effect Packing: Facilitates gate cleaning and prevents material build-up.
Blowing Holes: Simplifies body cleaning and maintenance.
Dismantling Bottom: Allows easy access for inspection and servicing.
Our knife gate valve has a built-in scraper in the packing, improving sealing performance, reducing leakage, and protecting against abrasive slurries and solids. The wear-resistant design ensures stable operation under high-speed or high-viscosity media.
The dual-sided valve plate scraper and blade-shaped bottom enable smooth cutting of soft materials. A hard PTFE scraper at the top prevents debris ingress, extending valve service life and maintaining operational efficiency.
Supports both hard and soft seals for versatile industrial applications. Hard seals provide wear resistance and high-temperature performance, while soft seals are cost-effective. This design ensures excellent sealing, adapts to slurries, scaling, liquids, and bulk solids, and prolongs valve life.
GEKO silo specific knife gate valve is applied in multiple industries
Petrochemical and natural gas industries
Steel and Chemical Industry
Ship and Ocean Engineering
Environmental Protection and Industrial Water Treatment
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GKV305 Under Silo Special Knife Gate Valve is mainly used in the mining and food-processing industries. It is specially manufactured for an under silo assembly. Owing to blowout holes , it can remove dry products such as dust or grains, avoid the stuffing and the accumulating to jam the gate.
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Email : info@geko-union.com
Email : info@geko-valves.de
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Knife Gate Valve - English
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