Bonneted Undirectional Knife Gate Valve

Introduction:

The PSN-series Lugged Bonneted Knife Edge Valve  is a unidirectional knife gate valve with bonnet. The completely enclosed body-bonnet structure ensures 0 leakage from the knife gate to surrounding. This valve is very suitable to contaminated/hazardous media for the safety of surrounding.

Features:
1. Body：

• Integral body with full bore structurer ensures smooth flow, easy assembly and smaller shell leakage possibility.
• Guide claws design at the port bottom for gate fixture, instead of a groove, eliminates any potential clogging when valve shutoff.
• Completely enclosed structure ensures 0 leakage from valve to the surrounding, which is perfect for contaminated/hazardous media for the safety of surrounding.

2. Gate：

• Beveled knife edge provides strong cutting stress and tight sealing.
• PTFE resilient point guider above the port prevents metal-metal contact between gate and body.
• Gate surface is well polished at both sides for tight seal and less jamming.
• Gate is hard chrome coated for better abrasion resistance.

3.    Seat：

• Side-entry seat is replaceable, reducing the cost of maintenance.
• Seat retainer covers the side of seat and prevents seat from direct flow flushing.
• Preloaded seat is adjustable to meet different sealing class and compensate normal seat wear.