Knife Gate Valves Browse All 
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E5100
Bidirectional, General Purpose
Knife Gate Valve
The E5100 knife gate valve is designed for industrial use as well as the municipal water & wastewater industry. The perimeter seat and optional transverse seal design ensures reliability and durability in various applications for fluids and light solids. The E5100 is suitable for bidirectional shut-off or dead-end service applications.
Product Information
Sizes Available
2” to 24”
(50mm to 600mm)(larger sizes available on request)
Pressure Rating
- 150psi max
Standards & Approvals
- Design: AWWA C520, MSS SP-81, TAPPI-TIS 405
- Flanges: ASME B16.5
- Testing: API 598
- Markings: MSS SP-25
- Mounting: ISO 5211
- Quality: ISO 9001:2015
- Registration: CRN
Temperature Rating
- Viton® seat: –40°F to 392°F (–40°C to 200°C)
Features & Benefits
Positive Gate Stop
Positive gate stop ensures seat integrity is maintained.
Various Actuation Options
Various actuation options available, including handwheel, bevel gear, pneumatic, hydraulic, and electric.
Grease Fitting
Grease fitting on handwheel bearing reduces operating torques for manually operated valves.
Direct Mounting
ISO 5211 mounting pattern allows direct mounting of various actuation options.
Proximity Sensors
Provision for proximity sensors allow easy integration for position feedback.
1 Positive Gate Stop
2 Various Actuation Options
3 Grease Fitting
4 Direct Mounting
5 Proximity Sensors
High Visibility Clevis
High visibility clevis provides easy identification of valve position.
Lockout Pin
Lockout pin provision comes standard for maintenance safety.
Braided PTFE Packing
Braided PTFE packing with adjustable packing follower provides reliable sealing.
6 High Visibility Clevis
7 Lockout Pin
8 Braided PTFE Packing
Energized PTFE Packing
Energized PTFE packing with adjustable packing follower for reduced maintenance.
Transverse Seal
Transverse seal design reduces material buildup offering most reliable sealing.
Anti-extrusion guides
Anti-extrusion guides also function as a scraper to remove material buildup on the gate and protect the packing.
9 Energized PTFE Packing
10 Transverse Seal
11 Anti-extrusion guides
Round Port Design
Round port design minimizes pressure drop and reduces turbulence.
Bidirectional Sealing
Perimeter style seat provides reliable, bidirectional flow/shutoff.
Replaceable Seat
Steel reinforced, replaceable seats ensure zero downstream leakage.
12 Round Port Design
13 Bidirectional Sealing
14 Replaceable Seat
Operators and Actuators
Handwheel
Handwheels are the standard operator for all knife gate valves and provide manual operation by rotating a drive nut to extend and retract the stem, which is connected to the gate with a clevis. They offer simple, dependable operation for rugged service environments.
Non-Rising Stem
A non-rising stem design is advantageous in applications with low headroom. By rotating the stem itself instead of a drive nut, the stem remains within the yoke and does not extend upwards when opening the valve. The disadvantage is that the opening/closing forces are not inline with the gate and can lead to premature wear of some components as well as increased thrust requirements.
Gear Box
Bevel gearboxes are used to manually operate large or high-torque linear valves, such as knife gate valves, with reduced input effort. They allow precise valve operation with minimal manual force allowing smooth, controlled operation even under demanding pressure conditions.
Chainwheel
Chainwheels are used to manually operate overhead or hard-to-reach valves by pulling a chain loop attached to the handwheel or gearbox. They allow valve operation from ground level, improving operator safety without the need for ladders or elevated platforms.
Pneumatic Cylinder
Pneumatic cylinders are used to actuate linear valves, such as knife gate valves, in demanding or repetitive process applications. General purpose cylinders provide reliable, consistent operation with minimal maintenance, and are typically used in the water industry and standard industrial processes.
Hydraulic Cylinder
Hydraulic cylinders are typically used to actuate large linear valves, such as knife gate valves, in high-pressure slurry or abrasive applications. Hydraulics provide a high force output from a relatively small size (compared to pneumatic cylinders) offering reliable operation and control in the toughest industrial environments.
Options & Accessories
Knife Gate Valve Accessories
Position Sensors
Position sensors utilize proximity probes and a magnetic target to detect the valve position and provide reliable feedback to a control system. Mounting directly to the yoke and detecting the position of the gate provides a more reliable solution than cylinder mounted switches. Hazardous area versions are available.
Solenoid Valve
Solenoid valves are used to control the opening and closing of a pneumatically actuated valve. A NAMUR style valve is typically used for rack pinion style actuators, and an inline valve is used for pneumatic cylinders. They are available with AC or DC coil voltages and with approvals for use in hazardous areas.
Filter/Regulator
A regulator controls the air pressure used to operate a pneumatically actuated valve. Combined with an air filter and auto-drain to remove any condensation in the line, it also provides protection of downstream pneumatic components and improves system reliability.
Positioner
Positioners are used in conjunction with pneumatically actuated valves to allow variable opening and closing for flow control based on process conditions. Different types of positioners are available and including smart positioners with digital programming. Explosion proof versions are also available, as well as stainless steel enclosures for corrosive environments.
Floor Standr
Floor stands are used for below-grade valves by extending access to ground or floor level via an extension stem, enabling safe and convenient operation. They provide improved accessibility and operator safety, especially in pits, vaults, or other confined underground installations.
Pedestal
Valve pedestals support and stabilize extension stems for gearboxes or electric actuators operating below-grade valves from ground or floor level. They ensure secure alignment and reliable torque transmission, enhancing operational safety and durability.
Floor Box
Floor boxes provide protected surface access to valve operators, such as 2″ drive nuts or extension stems. Installed flush with pavement or flooring, they shield components from debris and tampering while providing durable, low-profile access.
Stem Guide
Stem guides support and stabilize long extension stems connected to buried or remote valves and prevent deflection or bending during operation. They ensure smooth torque transmission and enhance operational reliability extending the service life of both the stem and valve.
Optional Materials
Chrome Coated Gate
Chroming (hard chrome or electroplated chromium) is a metallic surface treatment applied to valve components to enhance wear resistance, reduce friction, and improve corrosion protection.
Xylan® Coated Gate
Xylan® is a fluoropolymer-based coating commonly applied to valve components to enhance corrosion resistance, wear resistance, and lubrication properties.
Resources
E5100Bidirectional, General Purpose KGV
Product Brief22-0071
E5100Bidirectional, General Purpose KGV
Technical Brochure25-0053
E5100Bidirectional, General Purpose KGV
IOM25-0037
Product Inquiry
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