Babcock - Model BGA -Side Entry Trunnion Mounted Ball Valve

Wide selection seat/seal trims
A wide variety of trims are available to match each valve to its aplication, including metal to metal trims.

Protected seats for long life
The protected seat design features a deep pocket with a protective lip. This design prevents cold flow of the seat into the line. This results in extended seat life over conventional designs.

Large diameter trunnion
Provides smooth, easy operation and extended bearing life. The trunnion bearings are stainless steel with heavy duty PTFE coated.

Actuator mounting brackets
Available as options for users who prefer to install their own actuators. We recommend that buyers specify factory- installed actuators to assure reliable, long life performance.

Bidirectional sealing
Babcock trunnion valves are equipped with pressure-actuated seats offering true bidirectional sealing performance.

Automatic body pressure relief
The pressure actuated seat construction assures positive relief of excess pressure. If the body pressure exceeds the line pressure and seat pre-load pressure, the seat(s) will automatically back off to relieve the excess pressure.

TFM insert
The seat assembly consists of an outer metal seat ring with a TFM insert. The TFM insert locates into a groove in the metal ring. A spring assembly behind the seat loads the seat against the ball and prevents leakage from behind the seat. This efficient seat design provides positive shutoff.

Double block and bleed
The pressure actuated seats of Babcock’s trunnion valves provide a positive up and downstream seal under all conditions. When used for block and bleed, this feature lets the valve to take the place of two valves, allowing the operator to check the up and downstream sealing by installing a pressure releasing tool to bleed body pressure.

Easy to maintain
Babcock valves can be completely disassembled in the field for replacements of seats or a complete overhaul. Seats can be replaced quickly without the need for special tools.

Positive stem retention
Babcock trunnion mounted ball valves are manufactured with true anti blow out stem. The stem is inserted from whitin the valve body and is positively retained whitin the body cavity. This method of stem retention eliminates the need for external locking pins devices, which may be subjected to inadvert removal and the subsequent risks.

Adjustable packing
The stem packing material is graphite. The unique design of the BV stem packing assembly allow full maintainability of the packing material and replacement of FPM o-rings while the valve is in line and in service. This is achiebved by the security of a secondary stem seal located below the packing and upper lantern ring.

Actuators
Babcock valves are suitable for operation by any type of pneumatic, electric, or hydraulic actuators. We offer factory-mounted valve-actuator packages with single source efficiency, responsibility and warranty.