PTFE Lined Ball Valve
 
Lined Ball Valve is generally made from Cast Ductile Iron with lining. PTFE Lined Ball Valves is a Full Port, Two Piece Split Body Design , Bolted Body Construction with Integral Ball and Stem Unit.
 
Other Features are Replaceable PTFE Seat, Bubble Tight Shut Off, Glandless Design, Maintenance Free, Full Flow Efficient. Low Torque Manual lever Operated up to 100 mm / Worm Gear operated in 150 mm to 300 mm for easy operation.
 
The lining is securely locked into the deep machined groove slot into the pvdf lined ball valve body. And in holes in casting ball under melting processible of FEP or PFA. This prevents liner to collapse or blow out under full vacuum/high pressure applications & high temperature.
 
PTFE Ball Valve : Technical Specifications 
 
Design Standard : BS EN ISO 17292:2004 (BS 5351)
Testing Standard : BS EN 12266-1&2 (2003)
Size Range : 15 mm to 300 mm
Drilling : ASA #150 / DIN 2632/2633 / BS 10 Table D, E or F / Customer Specified
Face to Face : ANSI B 16.10 / DIN 3202 / BS EN 558-1/2
Lining Thickness : 3 to 5 mm
Body / Ball M.O.C. : Ductile Iron GGG40.3 / ASTM A395, Cast Steel ASTM A216 Gr. WCB, ASTM A351 Gr. CF8 (S.S.304), ASTM A351 Gr. CF8M (S.S.316)
Lining Material Options : ptfe (fep), ptfe (pfa), pvdf, polypropylene or pp, hdpe
Dimensions : As per BS EN 558-2 Table-6,Series 3.
Test and Inspection : Hydraulic Test : Body (Shell) – 20 Kg/Cm, Hydraulic Test : Seat – 11 Kg/Cm2, Pneumatic Test : Seat – 6 Kg/Cm2
Spark Test : 15 K.V.D.C.  
Operation : Gear Box, Pneumatic Actuator, Electro-Pneumatic Valve Positioner, Pneumatic
 
Salient Features
 
Maintenance Free’ Glandless Live Load Design
One Piece Integral Ball Stem Combination
Minimum Cavity & Full Flow Efficient
No Backlash in Stem & Balls even after prolonged service
Exceptionally Low Torque as compared to Plug Valve.
 
Applications
 
Chlorine
Benzene
Bromine
Sulfuric Acid
Nitric Acid
Hydrochloric Acid
Phosphoric Acid
Sea Water
HF acid
Hydrofluoric acid
Acetic acid
Bromine
Brine