GMK Knife Gate Valve with Pneumatic Actuator Manufacturer

Description
Technical
Application
Q&A

DESCRIPTION

Working Principle of Pneumatic Knife Gate Valve

The Knife Gate Valve with Pneumatic Actuator operates by moving the blade-like gate vertically through the valve body. When the valve closes, the sharp gate cuts through the process media and creates a tight shut-off.

During operation, scrapers attached to the stem clean the gate surface. As a result, the valve reduces material buildup and improves long-term operating performance.

Furthermore, the valve is available with wafer, lug, and flange connection designs. Therefore, it can meet different installation requirements in industrial systems.

Advantages of Knife Gate Valve with Pneumatic Actuator

One major advantage of this valve is its ability to handle abrasive and high-viscosity media. The full bore design reduces flow resistance and improves media transportation.

In addition, the simple structure requires less maintenance and reduces installation costs. The reversible design also allows flexible installation according to system requirements.

Moreover, replaceable seats and high-quality sealing materials help extend service life. Therefore, the valve provides reliable performance in demanding industrial environments.

However, proper valve selection is important because different applications require suitable sealing materials and configurations.

TECHNICAL SPECS

Size DN 50~600mm NPS 2”-24”

Face to face MSS SP-81

Flange connection GB/T 9113.1, JB/T 79.1, HG 20592, ASME B 16.5, EN1092-1 (other connections on request)

Supply ability 10000 piece/pieces per month

Port Wenzhou/shanghai

Payment terms L/C, D/A, D/P, T/T

Delivery time 7-10 Working day

Product Features

GMK VALVE Knife Gate Valve with Pneumatic Actuator combines a robust body design with reliable automation performance. The valve is suitable for industries requiring efficient isolation and stable operation.

Key features include:

Pneumatic actuator for automatic valve operation
Wafer, lug, and flange connection options
Non-rising stem and rising stem designs
Sharp knife edge gate for cutting performance
PTFE resilient point guider to prevent metal contact
Replaceable side-entry seat design
Adjustable preloaded seat for different sealing requirements
Double thrust bearing for lower operating torque
Optional stem cover, grease nipple, and bearing cover

Body and Gate Design

The valve body uses a guide claw design at the port bottom instead of a traditional groove. Therefore, it reduces the risk of material accumulation during shut-off.

The integrated body structure provides smooth flow, easy assembly, and improved sealing reliability.

The beveled knife edge gate creates strong cutting force and tight sealing performance. Moreover, the gate thickness can be increased for higher pressure applications.

Applications of Pneumatic Knife Gate Valve

The Knife Gate Valve with Pneumatic Actuator is widely used in industries such as pulp and paper, wastewater treatment, mining, metallurgy, petrochemical, printing, pharmaceutical, and food processing.

Furthermore, the valve is suitable for slurry systems and applications containing abrasive particles. Its reliable design helps maintain stable operation under challenging conditions.

GMK VALVE provides customized valve solutions according to pressure ratings, sealing materials, and connection requirements.

Application

Technical Specifications

Size Range:

DN 50~600mm
NPS 2”-24”
Large diameter available upon request

Sealing Options:

NBR: 90°C
EPDM: 120°C
Viton: 200°C
PTFE: 200°C
Metal seal: 304/316 + Satellite

Maximum Working Pressure:

DN50~DN250: 10 Bar
DN300~DN450: 7 Bar
DN500~DN600: 4 Bar

Standards and Connections

GMK VALVE Knife Gate Valve with Pneumatic Actuator follows international standards for industrial applications.
Face to face: MSS SP-81
Flange connection:
GB/T 9113.1
JB/T 79.1
HG 20592
ASME B16.5
EN1092-1

Operation Options:

Handwheel
Bevel Gear
Pneumatic Actuator

Q&A

Can we order goods from you directly?

Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.

Can I get a discount?

This depends on the specific situation, you can call directly to consult.

Inquire with us directly