Series BAF Floating Ball Valves - Features
Floating Ball Valves
2 Pieces Flanged Full Port ASME Class from 150 to 300 (DIN PN10 PN40)
Size from 1/2" to 8''
Euroguarco BAF01/F03 Flanged Series ball valves feature a floating ball design for low torque and increased cycle life. These rugged ball valves are ideal for industrial applications.
► Fire–safe
Flanged Series valves with graphite stem seals have been thoroughly fire-tested and meet API607 4th edition standards.
► Secure Mount
Flanged Series valves offer ease of automation due to an integrally cast actuator mounting pad which complies with ISO 5211 through 2" valve sizes.
► Body Materials
Stainless Steel, Carbon Steel, Special Alloys upon request
► Stem Seals
Flanged Series 1/2"~2" valves feature live-loaded, self-adjusting primary and secondary sealing. Utilizing Belleville washers, the stem seal automatically adjusts to compensate for changes in temperature and normal wear. Flanged Series 2.5"~10" valves utilize an independent packinggland which can be easily adjusted without removing mounting hardware or operator. The packing gland is contoured to more uniformly distribute the load across the packing.
The primary seal is a combination of a thrust bearing and a thrust washer. An adjustable stem packing creates a secondary seal between the stem and body. The stem packing is composed of RPTFE V-rings as standard-graphite stem packing is standard on all Fire Safe valves.
► Ball
All balls are precision-machined and mirror-finished for bubble-tight shut-off and less operating torque. As an added safety feature, a hole in the stem slot of each ball equalizes pressure bet-ween the body cavity and the line media flow when the valve is in the open position.
► Body
1/2"~4" valve bodies are investment cast and solution annealed/normalized for the highest quality and added strength. All body castings are marked with a foundry heat number for full traceability.
► Seat
Design ensures bi-directional, bubble-tight sealing with low operating torque. All resilient seats feature relief slots to relieve pressure past the upstream seat, and positive pre loading to ensure low pressure/vacuum sealing.
► Antistatic Design
To avoid any possibility to generate statical electricity when operating the valves, all EG-GRV ball valves incorporate one ore more antistatic "ball-spring" devices to ensure electrical conductance continuity between all metallic parts.
► Safe fireproof structure
Approved with API 607, series BAF 01/BAF03 flanged valve has stem filled with graphite stuffing to meet the fireproof-safe standard at the highest level even under extremes. If the elastic valve seat is damaged by overheat in furnace, a safe sealing will be constituted by the ball and stage 2 metal valve seat. A spiral ring constructed by stainless steel and graphite is used as valve body sealing for protection against leakage, and the graphite washer for valve stem can also protect against leakage.
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