Knife Gate Valves - Pumps, Valves, Piping and Fittings
Knife gate valves are linear isolation valves with a sharp-edged gate designed to control liquids containing solids, sludge, fibers, or suspended matter. In marine systems they are used mainly in wastewater, sewage, sludge, ballast-treatment, and drainage piping.
ProShipWorks provides end-to-end support to source and supply Knife Gate Valves for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Knife Gate Valves |
|---|---|
| Product Category | Pumps, Valves, Piping and Fittings |
| Product Reference | 697 |
| Brands / Manufacturers | Orbinox, DeZURIK, Stafsjö |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Full-port or near full-port flow passage |
| 2. Suitable for fluids containing solids and suspended matter |
| 3. Wafer, lug, or flanged body configurations |
| 4. Manual, pneumatic, electric, or hydraulic actuation |
| 5. Resilient or metal-seated sealing options |
Applications of Knife Gate Valves
| Application |
|---|
| 1. Marine sewage, wastewater, and sludge systems |
| 2. Ballast-water treatment and drainage systems |
| 3. Bilge, residue, slurry, and piping isolation service |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| EX Knife Gate Valve | Orbinox |
| ET Knife Gate Valve | Orbinox |
| KGC-BD Knife Gate Valve | DeZURIK |
| XV Knife Gate Valve | Stafsjö |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| EX Knife Gate Valve | Valve design | Wafer-style knife gate valve | — |
| ET Knife Gate Valve | Valve design | Lug-style knife gate valve | — |
| KGC-BD Knife Gate Valve | Valve design | Bi-directional knife gate valve | — |
| XV Knife Gate Valve | Valve design | Wafer-style knife gate valve | — |
| General marine knife gate valve | Nominal size | Manufacturer-dependent; commonly DN50 to DN1200 | mm |
| General marine knife gate valve | Actuation | Handwheel, gearbox, pneumatic, electric, or hydraulic | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Applicable standards may include MSS SP-81 for industrial knife gate valves, ISO 5208 or EN 12266-1 for pressure testing, and API 598 where specified by the manufacturer or purchaser. Actual compliance depends on valve design and service. |
|---|---|
| Class Approval | Class approval is not universal for knife gate valves. DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK acceptance or type approval may apply to specific valve designs and marine applications; verify the individual certificate and service restrictions. |
Installation, Maintenance & Safety Information
| Installation Notes | Confirm flow direction, face-to-face dimensions, flange drilling, pressure rating, seat material, and actuator clearance before installation. Install with the valve stem correctly aligned and support heavy actuators independently. Avoid using the valve as a permanent throttling device unless approved for that service. |
|---|---|
| Maintenance Tips | Inspect packing, gland leakage, seat condition, fasteners, and actuator operation periodically. Exercise the valve according to the vessel maintenance plan. Remove deposits from the gate and seat area, and lubricate stems or moving parts only with manufacturer-approved lubricant. |
| Safety Notes | Isolate, depressurize, drain, and lock out the piping system before maintenance. Confirm the valve is suitable for the fluid, temperature, pressure, and corrosive environment. Do not place hands near the gate or operate the valve while personnel are exposed to the line. |
Request a Quote for Knife Gate Valves
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
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