TEL: (316) 755-2100
Floating Ball Valves
SUPERIOR DESIGN AND CONSTRUCTION
Body Joint Construction
The one piece unibody end entry design incorporates 3 independent
seals: Oring (Viton® standard), PTFE, and GRAFOIL
to ensure absolute seal integrity.
The two piece bolted body designs include a tight toleranced overlapping
metal fit between the body and the adapter to minimize any possibility
of movement due to pipeline stress. A special high temperature spiral
wound stainless steel/grafoil filled gasket is utilized for absolute
seal. This gasket is encapsulated by body and adapted on all four
sides. Body and adaptors are dimensioned for metal contact to ensure
correct gasket crush.
(Viton® is a registered trademark
of DuPont Dow Elastomers)
Viton® is a registered trademark of DuPont Dow Elastomers
Stem Design / Anti Blowout
The stem is of the internal entry type ensuring positive anti blow
out even if the packing gland if removed.
Fugitive Emission Stem Packing
Our floating ball valves incorporated an advanced packing arrangement
consisting of 3 stages of independent packing as a sensible economic
solution to provide zero leakage against dangerous emissions. The
lower high pressure packing is a GRAFOIL washer. The mid stem packing
is an oring seal. The upper packing is compressible GRAFOIL
rings. To ensure even compression of upper packing, the Flow Control
valves feature a uni-nut gland tightening arrangement. This totally
eliminates the possibility of leakage due to uneven tightening of
gland bolts which could occur in older designs incorporating dual
All Flow Control floating flange ball valves include dual grounding
systems from stem to ball and stem to body. Valve testing to BS
5351 and BS 5146 was performed for all sizes, and witnessed by a
third party inspection company.
Flow Control Valves include a special ISO mounting pad for ease
of subsequent actuation.
The valves include an independent stop plate/position locking device.
The stop plate makes no contact with packing nut to avoid possibility
of loosening during valve operation. A special lock ensures security
of uni-nut packing by preventing unintentional movement.
Seat insert material Devlon "V" API is superior for bubble
tight shut off from 1 PSIG to 6000 PSI and temperature ranges
from -200oC to +200oC.
Seat designs fully consider material limitation, cross sectional
areas and fit to provide exceptional cycle life and resilience.
Longevity of Life
Special consideration was devoted to the attainment of enhanced
life and operation of our valve throughout design, development,
testing and manufacturing stages.
Valve designs combined with the selection of advanced materials
are such that long periods of inactivity should not affect the operations
As a world leader in quality ball valves, Flow Control Oil &
Gas Inc. Has achieved the highest quality standards in the industry:
ISO Q1/API 6D - License No. 6D-0193
Our quality program is independently audited on a regular basis
by both the American Petroleum Institute and International Standards
All valves manufactured by Flow Control Oil & Gas Inc. In Calgary
under these rigid programs, have full traceability of materials,
testing, test equipment, calibration equipment, personnel and personnel
training records. These records are available for review by our
customers with prior arrangements.