Pneumatic Full Enclosed Square Port Knife Gate Valve

Automated, Rapid Isolation for Bulk Solids in Non-Standard Pipes

The Pneumatic Full Enclosed Square Port Knife Gate Valve is a specialized, automated isolation valve engineered for pipelines with square and rectangular shapes. It serves as the main control equipment for regulating or cutting off the flow of powders, grain materials, small particle materials, and highly charged fluids.

This valve features a full enclosed body and is driven by a Pneumatic Actuator, ensuring rapid, reliable opening and closing for automated systems. The robust, welded body construction and square flange connection are custom designed and manufactured for seamless integration with specialized equipment such as flow bins, dryers, storage hoppers, and ash tanks. It is widely used across the power, hydraulic, petroleum, chemical, and mining industries.

Key Features & Automation Advantages

Feature Category	Technical Detail	Core Operational Benefit
Operation Type	Pneumatic Actuator	Provides fast, reliable on/off cycling, ideal for high-frequency automation and instantaneous shut-off sequences.
Flow Geometry	Square/Rectangular Port and Disc	Specifically designed for pipelines and equipment with non-circular shapes, optimizing the discharge of solids products.
Construction	Full Enclosed, Welded Body	Body construction is a single-piece welded structure made from various materials, ensuring protection and robustness.
Connectivity	Square Flange Ends (Customizable)	Connection standard is a square flange. The design may be adapted easily to the customer´s installation on site.
Application	Bulk Solids Control	Widely used for discharging bins, tanks, under hoppers for the storage of solids products.
Indication	Rising Stem Tight Model	Uses a rising stem to provide clear visual confirmation of the gate position during operation.

Technical Specifications (Full Enclosed Square Port Model)

Parameter	Specification	Notes
Nominal Size Range	200×200…….1200×1200	Manufactured to specific square/rectangular dimensions.
Pressure Range	Class 150 /PN6 /PN10	Suitable for low to moderate pressure bulk handling systems.
Applicable Temperature	0~200℃	Temperature range depends on the selected sealing material.
Connection Type	Square Flange	Flange connection is standard or specific on customer demand.
Operating Mode	Pneumatic Cylinder	Automated operation.

Major Component Materials

Component	Material	Notes
Body	Carbon Steel, Stainless Steel	Single piece welded body construction.
Gate Disc	Stainless Steel, Carbon Steel	Rectangular valve shape.
Sealing	Rubber, Metal Seal	Chosen based on application temperature and media.

Application and Integration

The Pneumatic Full Enclosed Square Port Knife Gate Valve is essential for automated systems requiring reliable cut-off of medium in specialized equipment, flow bins, and ash tanks. The actuator is easily integrated with solenoid valves and limit switches for full remote control and seamless automation.