Knife gate valves are designed mainly for on-off and isolation services in systems with high content of suspended solids. Knife gate valves are especially beneficial for handling slurry in addition to viscous, corrosive and abrasive media. The valves have a minimised pressure drop in fully open position, they are easy to actuate, they have a relatively low weight and are cost-effective.

Features :

Heavy Duty Cast Construction

Stainless Steel Construction

Thick beveled edge knife plate

Resilient rubber seats seal against pressure and vacuum

Pneumatic or manual actuation

What is the working principle of knife gate valve?

A knife gate valve works by allowing thick media to easily flow over soft seals with no interference. They work by chopping up the media as it passes through the valve.

Application:

such as granules, powder and slurry,（syrup,pulp,coal slurry）ash slag water mixture, etc

product description:

Size:DN50-DN1000

Type:wafer

Valve body:SS304

Valve Seat:EPDM

Valve disc:SS304

Shaft:SS304

Pressure:PN10/PN16

Actuator: handwheel

Optional:

valve body:DI/WCB/CF8/CF8M

Valve seat:EPDM/SS/Hard alloy/PTFE

Valve disc:201/304/316

Valve shaft:2Cr13/304/316

Actuator::handwheel/electric/pneumatic/bevel gear/chain wheel/electric hydraulic/hydraulic

Executive standard:

Design and manufacture:JB/T 8691

Face to face length:GB/T 12221

Pressure test:GB/T 13927

Product Inventory:

1.Before installing the knife gate valve, check the valve cavity and sealing surface, and no dirt or sand particles are allowed to adhere.

2.The bolts of each connecting part shall be tightened evenly.

3.Check the packing position to ensure the tightness of the packing and the flexible opening of the ram.

4.Before installing the valve, the user must check the valve model, connection size and medium flow direction to ensure the consistency with the valve requirements.

5.When installing the valve, the user must reserve the necessary space for valve driving.

6.The wiring of driving device shall be carried out according to the circuit diagram.

7.The knife gate valve must be maintained regularly, and it is not allowed to collide and squeeze at will, so as not to affect the sealing.

Company qualification: