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Knife Gate Valve

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MOQ : 1 Piece

Knife Gate Valve Specification

Control System
Manual handwheel, Gear operated, Pneumatic/Electric actuator

Valve Type
Wafer Type Knife Gate Valve

Material
Cast iron, Ductile iron, Stainless Steel (SS304, SS316), Carbon Steel

Connection Type
Wafer, Lugged, Flanged ends

Valve Size
2 to 48 (DN50 to DN1200)

Sealing
Soft seated (EPDM, PTFE, Nitrile, Viton), Metal seated option

Structure
Single plate (wafer/slim type), Full lug type

Application
Industrial fluid control, effluent treatment, chemical processing, water treatment, pulp & paper plants

Voltage
220V/380V/440V for electric actuated types

Type
Knife Gate Valve

Power
Manual / Pneumatic / Electric actuator operated

Pressure
PN10/PN16 (10 bar/16 bar), class 150

Media
Slurries, Liquids with suspended solids, Wastewater, Pulp, Powder and Granular Material

Port Size
2 to 48 (DN50 to DN1200)

Disc
Stainless Steel, CF8/CF8M

Pin
Stainless Steel

Stem Material
Stainless steel AISI 410 / AISI 316

End Connection
Wafer, Lug type

Handwheel Material
Cast Iron or Ductile Iron

Packing
Graphite, PTFE, Asbestos free

Leakage Rate
Class IV (Soft seat), Class III (Metal seat)

Body Material
Cast iron, Ductile iron (GG25/GGG40), SS304, SS316, WCB as per ASTM

Bonnet Type
Bonnetless or Enclosed Bonnet for higher safety

Gland Flange
Carbon steel or stainless steel

Color / Coating
Epoxy painted (blue/grey/red), powder coated

Seat Material
EPDM, Nitrile, PTFE, Viton, Metal Seat

Knife Gate Valve Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash in Advance (CID), Cheque

Supply Ability
400 Pieces Per Month

Sample Available
Yes

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Packaging Details
As per buyers requirement packing available.

Main Export Market(s)
Africa, Central America, Eastern Europe, Australia, Middle East, South America, Western Europe, Asia, North America

Main Domestic Market
All India

Certifications
ISO Certified

About Knife Gate Valve

We are engaged in offering a wide range of Knife Gate Valve to our clients. This valve is manufactured by making use premium quality raw materials and sophisticated techniques under the guidance of our professionals in line with existing industry standards. The valve provided by us is broadly known for its indispensable attributes such as rugged design and high durability. Furthermore, clients can avail this Knife Gate Valve from us in different dimensions as per their needs within the promised time frame.

Features:

Sturdiness
Anti corrosive
Robust construction
Dimensional accuracy

Versatile Body and Seat Materials

Choose from Cast iron, Ductile iron (GG25/GGG40), stainless steel (SS304, SS316), or carbon steel bodies to match demanding industrial environments. Seats are available in EPDM, Nitrile, PTFE, Viton, or robust metal options to guarantee effective sealing, chemical compatibility, and low maintenance even with abrasive or corrosive media.

Bonnet Design for Enhanced Safety

Select either a bonnetless design for easy maintenance or an enclosed bonnet for higher safety requirements in hazardous environments. Each valve is meticulously coated (epoxy or powder) in blue, grey, or red to provide long-lasting corrosion protection, making the valve suitable for demanding applications such as power plants, wastewater, or pulp processing.

Flexible Operation and Connection Options

The valve can be operated manually by handwheel, gear, or automatically with pneumatic/electric actuators (available in 220V/380V/440V). End connections include wafer, lug, or flanged types, accommodating seamless integration into new or existing pipeline systems, with sizes from DN50 up to DN1200.

FAQs of Knife Gate Valve:

Q: How do I choose the appropriate body and seat materials for a knife gate valve?

A: Selection depends on your applications pressure, temperature, and chemical compatibility requirements. For corrosive or high-temperature media, stainless steel (SS304/SS316) with PTFE, Viton, or metal seats may be preferred. For water or wastewater, cast iron or ductile iron valves with EPDM or nitrile seats are often sufficient.

Q: What are the primary benefits of the bonnetless and enclosed bonnet designs?

A: Bonnetless knife gate valves offer easier maintenance and cost-effectiveness, suitable for standard applications. Enclosed bonnet designs provide enhanced protection and safety, especially in hazardous or high-pressure environments, preventing external contamination and ensuring reliable operation.

Q: Where are knife gate valves typically used in industry?

A: Knife gate valves are widely used in industrial fluid control, effluent treatment, chemical processing, water treatment, pulp and paper plants, and in processes handling slurries, wastewater, or granular materials due to their ability to cut through suspended solids.

Q: What is the process for installing a wafer type knife gate valve?

A: Installation involves aligning the valve between two pipe flanges (using gaskets as needed), tightening the flange bolts in a criss-cross pattern for uniform pressure. Wafer and lug types are designed for easy integration into existing pipeline setups. Always ensure correct orientation and check for leakage upon commissioning.

Q: How does the valves sealing option (soft seated or metal seated) influence its usage?

A: Soft seated valves using EPDM, PTFE, or similar materials provide excellent sealing for liquids and low-pressure slurries, offering lower leakage rates (Class IV). Metal seated versions are suited for abrasive, high-temperature, or high-pressure applications, but with slightly higher leakage tolerance (Class III).

Q: What is the advantage of multiple actuation options (manual, pneumatic, electric)?

A: Offering manual, pneumatic, or electric actuation allows users to choose the most suitable control mode based on process requirements. Manual is ideal for basic setups, pneumatic for fast/remote control, and electric for integration with automated systems or where remote operation is essential.

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