FLOMECH VALVES
GST : 19AFQPP1276G1ZZ

Knife Edge Gate Valve

Name: Knife Edge Gate Valve
Brand: FLOMECH VALVES
Price: 700.00 INR
Availability: InStock

Price 700.00 INR/ Piece

Get a Price/Quote

MOQ : 1 Piece

Knife Edge Gate Valve Specification

Control System
Manual Handwheel, Pneumatic Cylinder, Electric Actuator

Material
Cast Iron / Stainless Steel / Ductile Iron / Alloy Steel

Connection Type
Flanged / Wafer

Valve Type
Gate

Valve Size
2 to 24

Sealing
Resilient or Metal Seated

Application
Slurry, pulp, powder and other media isolation in pipelines

Structure
Knife Edge Gate

Voltage
24V, 110V, 230V, 380V AC (for actuated types)

Type
Knife Edge Gate Valve

Power
Manual, Pneumatic, Electric

Pressure
Class 150 / PN10

Port Size
DN50 to DN600

Disc
Stainless Steel / Cast Iron

Knife Edge Gate Valve Trade Information

Minimum Order Quantity
1 Piece

Supply Ability
10 Pieces Per Day

Delivery Time
15 Days

About Knife Edge Gate Valve

Gate Valve Non Rising Spindle

Bolted Bonnet, Solid Wedge, Outside Screw & Yoke.
Flange to Flange as per ANSI B16.10
Flange Dimension as per ANSI B16.1
Alternative Flanges can be provided.

Nomenclature And Materials

Body	Cast Iron IS : 210 FG-200
Dome
Cover
Gland
Wedge	High Tensile Brass / S.S. - AISI 410
Spindle	Gun Metal / S.S. - CF - 8
Seat & Wedge Ring	Gun Metal / S.S. - CF-8
Handwheel	Cast Iron IS : 210 FG - 200
Packing	Graphited Asbestos
Bolts & Nuts	Carbon Steel
Gasket	C.A.F
Cap	Cast Iron IS : 210 FG - 200

Hydrostatic Test Pressure in Kg/Cm2 (PSI)
Class	Shell	Seat
125	24 (342)	16 (228)

Dimensions Are In MM

Mark	Size	50	65	80	100	125	150	200	250	300	350	400	450	500	600
	A B	178	190	203	229	254	267	292	330	356	381	406	432	457	508
	A B	203	203	229	254	305	305	381	457	533	610	610	686	686	BG
ANSI B 16.1 Class-125	D b k d₂ Z	152	178	191	229	254	279	343	406	483	533	597	635	699	813
		19	22	24	24	24	25	29	30	32	35	37	40	43	48
		121	140	152	191	216	241	298	362	432	476	540	578	635	749
		19	19	19	19	22	22	22	25	25	29	29	32	32	35
		4	4	4	8	8	8	8	12	12	16	16	20	20	20

Testing as Per BS : 5146
BG indicates as BEVEL GEAR.
Chain Wheel / Gear / Actuator can be provided.
Shoes & Channel position indicator / Extn. rod with coupling / By Pass arrangement can be provided.

Optimal Performance in Demanding Media

Knife Edge Gate Valves excel in isolating abrasive media such as slurry, pulp, and powders, where conventional valves may encounter operational difficulties. Their uniquely sharpened gate design allows them to cut through viscous or solid-laden flow streams, minimizing clogging and ensuring seamless pipeline operation. They are essential for industries such as mining, paper, chemical, and wastewater, providing dependable sealing and uninterrupted performance.

Flexible Control and Operation

Available with manual handwheel, pneumatic cylinder, or electric actuator control, these valves offer customizable operation suitable for a variety of process requirements. Actuated types can be powered at 24V, 110V, 230V, or 380V AC, accommodating available plant infrastructure. This flexibility enables integration with automated process control systems, improving safety, efficiency, and response times in critical pipelines.

FAQs of Knife Edge Gate Valve:

Q: How are Knife Edge Gate Valves used in slurry and pulp pipeline applications?

A: Knife Edge Gate Valves are specially designed to cut through and isolate slurries, pulps, and other thick or particulate-laden media. Their sharpened gate travels through the medium, preventing buildup and allowing for a tight shutoff that minimizes leakage and maintenance requirements.

Q: What are the main benefits of choosing a knife edge gate valve for powder isolation?

A: These valves are highly effective for handling and isolating powders due to their ability to prevent clogging and ensure tight closure. Their robust construction and precision gate design reduce downtime and enhance process reliability in powder conveying systems.

Q: When should I use a manual, pneumatic, or electric actuator for my valve?

A: Manual actuation is ideal for simple or infrequent operations. Pneumatic actuators suit applications requiring quick, remote, or repetitive operation with compressed air access. Electric actuators are preferred for automated processes needing precise control and integration with plant systems, especially where electricity is readily available.

Q: Where are knife edge gate valves commonly installed?

A: These valves are widely used in industries such as mining, paper and pulp, chemical plants, and wastewater treatment facilitiesessentially anywhere reliable isolation of abrasive, dense, or particulate media in pipelines is required.

Q: What is the process for selecting the right size and material for a knife edge gate valve?

A: Selection depends on the nature of the media, pipeline size (DN50DN600 / 224), pressure rating (Class 150 / PN10), and required durability. Materials like cast iron, stainless steel, ductile iron, or alloy steel are chosen based on media compatibility, corrosion resistance, and operational conditions.

Q: How does the sealing type (resilient or metal seated) impact the valves performance?

A: Resilient seats provide bubble-tight shutoff and are ideal for lighter slurries and powders, while metal seats offer greater durability and resistance to abrasion or high temperatures, making them suitable for harsh or abrasive environments.