MOGAS DV-4 Switching Valve

The DV-4 switch valve features many advantages over existing ball or plug valves on the market today. Backed by innovative R&D, world renowned after sales service and a reputation for quality, the DV-4 represents product advancements in delayed coking switching operations.

Features:

• Patent-pending oversized outlet •
• Reduces backpressure and coke accumulation in heater by maintaining 90 to 100% flowrate during switching (compared to less than competitor’s 60%)
• Semi-trunnion (sleeve and seat ring supports ball) 
• Maintains alignment and equalizes wiping forces  
• Prevents uneven seat loading and leakage 
• Lowers steam consumption by sealing body cavity 
• Keeps process media out of body cavity 
• Reduces torque
• Belleville springs with seat rings
• Lowers steam consumption by eliminating bellow spring purge inlets
• Eliminates prone-to-fouling bellow springs
• Optimized purge system
• Simplifies installation using manifolds for two purge inlets and two purge outlets – one packing purge – three body purges – two drain purges
• Increases switching reliability via body cavity flushing; evacuates body cavity media before and after switching using purge outlets
• Lowers steam consumption; appreciable steam consumption only during switching and body cavity flushing
• Integral flange connections
• Prevents lock-up of the valve due to pipe loads (especially at warm up) because the seats are not coupled to the end flanges
• Patent-pending bonnet
• Reduces area for coke build-up
• Simplifies repair and trim replacement via true top entry design
• Patent-pending two-piece stem adaptor
• Prevents stem and actuator damage using sacrificial pins
• Dual stem guides
• Prevents misalignment and packing leaks due to side loads
• Extended mounting bracket
• Allows room for ease of packing maintenance
• Prevents electric motor and gear from high temperature exposure
• External stem extension rod
• Indicates true flow and ball bore position
• Verifies flow direction with actuator removed