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Slurry Knife Gate Valve

Slurry Knife Gate Valve

 

This valve opens and closes flow by raising and lowering its stainless‑steel knife disc on a rising‑stem assembly. Actuation options include handwheel, gear‑operated and electric‑actuated versions. Designed for full‑open / full‑closed isolation only, it is not suitable for flow throttling. Equipped with integral PU lining, it delivers dependable shut‑off for abrasive slurries and solid‑laden media, making it well‑suited for heavy‑duty mineral processing and industrial slurry pipeline projects. OEM & ODM orders are welcomed.

 

 

  • Size :

    NPS 2" ~ 24" (DN50 ~ DN600)
  • End Connections :

    Flange, ASME B16.5 Class 150
  • Material :

    Carbon steel body, PU lining, 304 stainless steel disc
  • Temperature Range :

    Up to 80°C
  • Pressure Rating :

    Class 150
  • Design Standards :

    MSS SP‑81, ASME B16.5 150LB
  • Suitable Medium :

    Slurry, mineral pulp, sewage sludge, abrasive solid‑laden fluids
  • Operation :

    Handwheel, Gear operated, Electric actuated
  • Description

Product Overview

  • CONSTRUCTION & MATERIAL

The heavy‑duty carbon‑steel body adopts a one‑piece reinforced frame structure. A precision‑polished 304 stainless‑steel knife disc paired with high‑wear integral PU lining offers excellent abrasion resistance and positive bi‑directional sealing performance.

 

  • OPERATION FEATURE

The rising-stem design ensures stable linear motion for reliable open-close operation.

- Handwheel: Direct manual operation for on-site adjustment.

- Gear‑operated: Reduced operating effort for large-size valves.

- Electric‑actuated: Motor-driven control for remote automation.

All actuation versions use a simple, robust mechanical structure for easy operation and maintenance.

 

  • ENVIRONMENTAL ADAPTABILITY

It retains reliable sealing and smooth cyclic performance under heavy‑duty abrasive slurry service, with a maximum working temperature of 80°C.

 

  • DESIGN STANDARDS

Manufactured in strict accordance with MSS SP‑81, flange dimensions comply with ASME B16.5 150LB for compatibility with global industrial piping systems.

 

  • APPLICATION SCOPE

Featuring field‑validated knife‑gate construction, this valve serves a wide range of applications including mining, mineral processing, power‑plant ash handling, wastewater treatment and pulp & paper industries.

 

Key Features

  • Wear‑resistant PU lining shields the valve body against erosion from abrasive solid‑laden media
  • Precision‑machined stainless‑steel knife disc shears slurry particles and lowers the risk of jamming
  • Multiple actuation selections: handwheel, gear‑operated and electric‑actuated to satisfy varied site operating demands
  • Robust one‑piece frame engineered for long‑term heavy‑duty slurry‑service conditions

 

Parameters

NPS L O D N-M D0
3" 51 190 152.4 4-5 / 8"-11 200
4" 51 230 190.5 8-5 / 8"-11 220
6" 57 280 241.3 8-3 / 4"-10 280
8" 70 345 298.5 8-3 / 4"-10 280
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Slurry Knife Gate Valve
  This valve opens and closes flow by raising and lowering its stainless‑steel knife disc on a rising‑stem assembly. Actuation options include handwheel, gear‑operated and electric‑actuated versions. Designed for full‑open / full‑closed isolation only, it is not suitable for flow throttling. Equipped with integral PU lining, it delivers dependable shut‑off for abrasive slurries and solid‑laden media, making it well‑suited for heavy‑duty mineral processing and industrial slurry pipeline projects. OEM & ODM orders are welcomed.    
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