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Knife-Edge-On-Off-Gate-Valve

Knife Edge Gate Valve

Speciality Valve for abrasive applications

IPC Valves’ knife-edged gate valves are specifically engineered to excel in challenging environments, making them ideal for abrasive, viscous and powder applications. Their design enables efficient handling of slurries, pulp stocks and corrosive fluids in various process industries, requiring a resilient seat and precise shut-off. These valves find extensive use in waste-water treatment, pulp & paper, food, cement and powder industries, offering large sizes to ensure smooth operation even with thick flows.

Benefits

Designed for superior performance and long services life
Perfect valve for abrasive and slurry type applications
These valves can be supplied in both uni-directional and bidirectional configuration
Manual valves available with either hand wheel or gear
Automated valves can be supplied with various accessories

Specifications

General design & mfg MSS SP 81
Face-to-face dimensions Manufacturer's Standard
Inspection & testing MSS SP 81
Flange drilling ASME B 16.5
Size range DN40 to D600
Pressure rating PN10, PN16
Operating temperature range -29C to 200C

Features

Both soft seated and metal seated valves are available
Lug type cast stainless steel body
Available size range of DN 50 to DN 600 (consult factory for larger sizes)
Automated valves are available with either pneumatic or electric actuation like Limit switches, Air lock relays, Flow control valves, Volume boosters, Position transmitters etc.

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Frequently Asked Questions​

What is a Knife Edge Gate Valve, and what makes it special?
Gate valve built specifically for the tough stuff. It’s designed with a sharp, beveled edge on the gate (the “knife”) that allows it to cut through and cleanly shut off thick, viscous, or abrasive slurries that would clog or damage a standard valve. It’s the specialist you call in for challenging flow control.
How does the "knife edge" actually work?
The sharpened edge of the gate does two critical jobs. First, it slices through thick and sticky materials as the valve closes. Second, it creates a tight, wipe-clean action against the seal, which helps clear away residual solids and ensures a reliable, leak-free shut-off even with abrasive particles present.
What kinds of materials and industries are these valves used for?

They are the go-to choice for demanding applications involving slurries, powders, pulp stocks, wastewater sludge, and corrosive fluids. You’ll commonly find them providing reliable service in wastewater treatment plants, pulp & paper mills, food processing, cement production, and various powder handling industries.

What are the main benefits of choosing a knife edge design?
The biggest benefits are reliability and reduced maintenance in harsh conditions. Their resilient seat and precise shut-off mechanism prevent jamming and wear from abrasive particles. They are also built in large sizes to ensure smooth operation with thick flows, minimizing downtime and keeping your process running.
Why should I source my Knife Edge Gate Valves from IPC?

IPC specializes in engineering valves for specific, challenging applications. Our knife edge valves are designed from the ground up to excel in abrasive and viscous environments, offering durability and precise control where it matters most for your process integrity.

How do I select the right valve for my abrasive application?

Key factors include the specific type of abrasive or viscous media, particle size, flow rate, and pressure. Sharing these details with our technical team ensures we recommend the optimal materials and size from our range.

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