Blast Furnace Ram Valves

Features of the Hydraulic Ram Goggle Valve

Full Main Opening: Enjoy a clean, unrestricted bore that ensures no pressure loss.
Hydraulic Rams: Experience the most efficient and reliable force for powerful separation of valve seats.
Water-Cooled Seats: Available for service temperatures exceeding 600°F.
Positive Seal: Powerful springs provide uniform pressure around the goggle plate's periphery, ensuring a tight seal with renewable stainless steel valve seats.
Stainless Steel Goggle Plate Seat Inserts: Replaceable in-line, featuring a renewable silicone sealing ring for absolute gas sealing.
Proportional Rams and Springs: Guarantee equal seating pressure and instant, non-stick release of the goggle plate.
Positive Ram and Spring Action: Superior to thermal cam or toggle action goggle valves, requiring no adjustments. This design eliminates the need for expensive steam or water line installations and maintenance.

Components

Ram and Spring: Springs force the seating ring against the goggle plate, while hydraulic rams apply pressure to overcome the springs and any sticking condition. Full seat separation is indicated by a noticeable rise in hydraulic pressure.
Expansion Piece: Absorbs movement for seat separation, eliminating the need for a separate piece in the main and adding convenience in valve positioning.
Pressure Ring and Plate: The ring on one end of the plate forms a seating ring, while the opposite end contains packing and the expansion piece. Goggle plate seats and sealing rings are replaceable in-line.
Goggle Plate Pivot: Counter-balanced and pivoting on a specially designed pin, the goggle plate allows free-floating movement when the seats are separated.
Chain Tensioner: The operating chain is kept firm by a chain tensioner, with opposing adjustment nuts regulating the spring force to eliminate slack.