Knife Gate Valves Browse All 
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Unidirectional
Bidirectional
Urethane Lined
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Push-Through, Slurry Valves
Guided Shear Gate
Zero Pocket
E5800
Heavy Slurry, Wide Body
Knife Gate Valve
The E5800 knife gate valve is specifically designed for heavy slurry use in the mining and mineral processing industries. The double-seat, cavity free design ensures reliable, bidirectional, shut-off in demanding applications that include heavy slurries, rocks, coarse powders, and other abrasive materials. The E5800 is ideally suited for any rubber lined piping application.
Product Information
Sizes Available
- 3″ to 60″ (50mm to 1500mm)
Pressure Rating
- 3″ to 24″ = 100psi
- 26″ to 42″ = 75psi
- 48″ to 54″ = 50psi
- 60″ = 30psi
Temperature Rating
- Natural Rubber seats: -58°F to 158°F (-50°C to 70°C)
- EPDM seats: –22°F to 300°F (–30°C to 150°C)
Design & Construction
- Ductile Iron body
- Steel reinforced Natural Rubber seats and wiper (EPDM optional)
- Polished 316SS gate
- 304SS stem
- Heavy duty yoke with safety screens and lockout pin
Standards & Approvals
- Flanges: ASME B16.5
- Testing: API 598
- Markings: MSS SP-25
- Mounting: ISO 5211
- Quality: ISO 9001:2015
- Registration: CRN
Features & Benefits
- Double-seat, cavity free design allows bidirectional flow/shut-off and eliminates material buildup
- Steel reinforced, natural rubber seats provide zero downstream leakage and are field replaceable to minimize downtime
- Full port opening allows maximum throughput and minimizes pressure drop
- Lubricating wiper ensures smooth gate operation
- Lockout pin and safety covers, included as standard, ensure operator and maintenance safety
- High visibility clevis provides easy identification of valve position
- ISO 5211 mounting pattern allows direct mounting of various actuation options including bevel gear, pneumatic or hydraulic cylinders, and electric actuators
- Grease fitting on handwheel bearing reduces operating torques
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.
Optional Materials
17-4PH Gate
17-4 PH (Precipitation-Hardening) stainless steel is a high-strength, corrosion-resistant alloy commonly used in valve stems, shafts, seats, and trim components.
Boronized Gate
Boriding (Boronizing) is a thermochemical surface-hardening process that diffuses boron atoms into the surface of metal components.
Xylan® Coated Gate
Xylan® is a fluoropolymer-based coating commonly applied to valve components to enhance corrosion resistance, wear resistance, and lubrication properties.
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.
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