Allsen Knife Gate Valve
Unidirectional Knife Gate Valve
The ALLSEN Unidirectional Knife Gate Valve is designed for reliable isolation in demanding industrial applications involving slurry, viscous fluids, pulp, powder, wastewater, and abrasive media.
Its robust construction and precision-engineered knife-edged gate ensure efficient shut-off performance with minimal pressure drop.
1. STEM PROTECTOR:
The stem protector safeguards the valve stem against dust, moisture, corrosion, and mechanical damage during operation. It enhances operational safety while extending stem life, especially in outdoor and harsh industrial environments.
2. INDICATOR:
The valve position indicator provides clear visual confirmation of the valve’s open or closed status. This enables operators to monitor valve position quickly and improves operational safety and maintenance efficiency.
3. SUPPORT YOKE:
The heavy-duty support yoke ensures structural rigidity and stable alignment between the actuator and valve assembly. It is designed to withstand high operating loads and maintain smooth valve operation under continuous service conditions.
4. KNIFE:
The precision-machined knife-edged gate is designed to cut through slurry, pulp, viscous fluids, and suspended solids effectively. Its sharpened edge ensures reliable shut-off performance with minimal clogging and reduced pressure drop.
5. REPLACEMENT SEAT:
The replaceable seat design allows easy maintenance and reduced downtime during servicing. It provides tight sealing performance and enables economical replacement without changing the complete valve body assembly.
6. MONOBLOCK BODY:
The robust monoblock body construction provides superior strength and leak-proof performance. The fusion-bonded epoxy coating offers excellent corrosion resistance, enhanced durability, and long service life in aggressive industrial environments.
7. SEALING TYPES:
ALLSEN unidirectional knife gate valves are available with multiple sealing configurations to suit various media and operating conditions:
- Resilient Seated
- Metal Seated
- PTFE Seated
- EPDM Seated
- NBR Seated
These sealing options ensure reliable shut-off performance across abrasive, corrosive, and high-temperature applications.
SPECIAL FEATURES
Design and Manufacturing: MSS SP-81
Inspection and Testing: MSS SP-81 / API 598
End Flange Dimensions: ASME B16.5 / EN 1092-1 / DIN Standards
BW End Dimension: ASME B16.25
Face-to-Face & End-to-End Dimension: MSS SP-81
Gasket Design: Soft Seated / Metal Reinforced
Knife Design: Precision Machined Knife Edge for Slurry & Solid Media
Body Design: Monoblock Wafer Type Construction
Stem Design: Non-Rotating Rising Stem
Seat Arrangement: Replaceable Seat Design
Leakage Class: Bubble Tight Shut-Off
Coating Fusion: Bonded Epoxy Coating
Automation Compatibility: Pneumatic / Electric / Hydraulic Actuation
Flow Direction: Unidirectional
TOLERANCE
Face to Face: As per MSS SP-81
DESIGN FEATURES
Compact wafer-type design for space-saving installation
Heavy-duty monoblock body construction
Precision knife-edge gate for efficient media cutting
Replaceable seat arrangement for easy maintenance
Bubble-tight sealing performance
Low operating torque
Suitable for slurry, pulp, powder, wastewater, and abrasive media
Corrosion-resistant fusion bonded epoxy coating
Bidirectional actuator mounting compatibility
Available in manual and automated configurations
