4″ PVC Knife Gate Valve Full Port Abrasion Resistant

This 4″ PVC knife gate valve features a full-port, self-cleaning design for abrasive slurries, reducing wear and pressure loss. It ensures a bubble-tight seal and allows easy field maintenance. Click to view specifications and request a quote.

Pošlji povpraševanje

4″ PVC knife gate valve is engineered for handling slurries containing solids, fibrous materials, or corrosive media. Its blade-like gate cuts through and cleans the flow path, preventing clogging, making it suitable for industrial processes such as mining, wastewater treatment, and pulp and paper. The valve body is constructed from Polyvinyl Chloride (PVC), which offers strong resistance to a wide range of acidic and alkaline solutions.

Common Specifications and Configurations for the 4″ PVC Knife Gate Valve

This valve has a nominal bore of 4 inches (approximately DN100). The primary body material is typically PVC-U or PVC-C, with seal options like EPDM or FKM to match different media temperatures and chemical properties. The connection is predominantly flanged, ensuring a secure installation. Actuation is flexible, available in manual, pneumatic, or electric options. Pneumatic actuation enables quick opening/closing and automated control. At ambient temperatures, the standard working pressure for this valve type is commonly 10 Bar (PN10).

A Closer Look at Key Features of the 4″ PVC Knife Gate Valve

A defining feature of this valve is its full-port design, meaning the internal diameter matches that of the connecting pipeline when fully open. This minimizes pressure drop and media turbulence, reducing wear. Furthermore, its through-conduit design is self-cleaning; as the gate closes, it evacuates residual material from the valve cavity, preventing build-up and ensuring a reliable seal. Many models also include replaceable wear-resistant sleeves that protect the main valve body. Simply replacing the sleeve extends the valve's service life, making maintenance straightforward.


	4 Inch (DN100)
	PVC-U, PVC-C



	Standard 10 Bar (PN10)
	Depends on seal; EPDM approx. -20℃ to 140℃F (60℃)
	Full-Port, Self-Cleaning, Replaceable Wear Sleeve

1. Why choose a PVC material? Is it reliable?

PVC is a proven and reliable non-metallic material for valves. Its primary advantage is , handling many acidic and alkaline environments that challenge metal valves. Additionally, PVC valves are lighter, easier to install, and have a smooth interior that reduces flow resistance. Products meeting international standards like ASTM ensure guaranteed pressure ratings and performance.

2. Which fluids is the 4″ PVC Knife Gate Valve best suited for?

, such as mineral slurries, sewage sludge, and pulp. PVC's corrosion-resistant properties also make it suitable for many chemical fluids. The knife-gate design effectively cuts through fibers and particles, preventing valve binding.

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