Non-Rising Stem Knife Gate Valve
The Non-Rising Stem Knife Gate Valve is designed for space-constrained installations where vertical room for a rising stem is limited. Despite its compact design, it provides reliable shutoff and control for slurries, viscous fluids, and abrasive media. Commonly used in mining, wastewater treatment, pulp & paper, and chemical processing, this valve combines durability, precision, and a simplified operation mechanism.
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Technical Specifications
| Specification | Details |
|---|---|
| Valve Type | Non-Rising Stem Knife Gate Valve |
| Sizes | 2″ – 48″ (custom sizes available) |
| Pressure Class | PN10, PN16, ANSI 150 – 300 |
| Body Materials | Cast Iron, Carbon Steel, Stainless Steel, Duplex Steel |
| Seat Materials | Resilient, PTFE, Metal |
| Actuation | Manual, Gear, Pneumatic, Hydraulic, Electric |
| Operation | Fully Open / Fully Closed (Compact, Non-Rising Stem) |
| Applications | Slurry, Abrasive Media, Pulp & Paper, Mining, Wastewater |
Key Features
Non-Rising Stem Design: Compact operation; ideal where vertical space is restricted.
Durable Gate and Body: Reinforced gate efficiently slices through solids and abrasive media.
Multiple Seat Options: Resilient, PTFE, or metal seats to suit different service conditions.
Versatile Actuation: Manual, gear-operated, pneumatic, hydraulic, or electric options.
Corrosion & Abrasion Resistant: Body and gate materials include carbon steel, stainless steel, duplex alloys, or custom alloys.
Bi-Directional Sealing: Ensures tight shutoff in both flow directions.
Applications
Mining & Mineral Processing: Handles abrasive slurries with minimal wear.
Pulp & Paper Industry: Suitable for pulp and stock pipelines.
Wastewater Treatment: Effective in sludge, grit, and viscous waste pipelines.
Chemical Processing: Compatible with corrosive or viscous fluids.
Benefits
Compact Design: Fits in confined spaces without sacrificing performance.
Extended Service Life: Reinforced gate and body reduce wear in abrasive media.
Reliable Shutoff: Tight sealing in both flow directions.
Smooth Operation: Optional gear or actuator mechanisms reduce operational effort.
Reduced Maintenance: Optional replaceable seat designs allow in-line servicing.
Ordering & Customization
We offer custom configurations for valve size, pressure rating, body and seat materials, and actuation methods to meet your project requirements.
* We are not just providing simple quotes but experts in selection, calculation, and drawing.
Non-Rising Stem Knife Gate Valve – FAQ
A non-rising stem knife gate valve features a stem that rotates rather than moves vertically, making it ideal for space-constrained installations while still providing reliable shutoff for slurry, viscous, or abrasive media.
Unlike rising stem valves, the non-rising stem design does not provide a visual indication of gate position, but it saves vertical space and simplifies operation in compact pipelines.
Typical sizes range from 2" to 48", with pressure classes from PN10, PN16, up to ANSI 150–300. Custom sizes and ratings are available upon request.
Common body materials include cast iron, carbon steel, stainless steel, and duplex alloys. Seat options include resilient rubber, PTFE, or metal depending on the application.
Valves can be manually operated, gear-operated, or actuated pneumatically, hydraulically, or electrically, depending on system requirements.
Yes. The reinforced gate and durable body make non-rising stem knife gate valves suitable for abrasive, viscous, and solid-laden media in mining, pulp & paper, and wastewater treatment.
Provide your project details—size, pressure rating, material, seat type, and actuator preference—and our sales team will provide a tailored quotation within 24 hours. Bulk orders or large projects may qualify for discounts.
