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BUTTERFLY VALVEHOME > PRODUCTS > BUTTERFLY VALVE
BT200/BT220 Double Offset Butterfly Valves
BT200/BT220 Double-offset Butterfly Valves BT200 double-offset butterfly valves, shaft offsets are created by designing the valve with the shaft located behind the centerline of the sealing surface (offset1) and slightly to one side of the pipe centerline (offset2). These double offets offer unique soft seal construction between disc and seat to get high seal performance and high durability. The seat in the body can be changed easily from the body.

BT200 is wafer type, economical and compact.




   
SG Type Seat FN/FV Type Sea

Specifications

Body Styles BT200 BT220
Connections Wafer Type Double Flanged Type
Body Size 3”~60”
Body Rating ANSI 150#
Body Material WCB, CF8, CF8M, CF3, CF3M, etc…
Disc Material WCB, CF8, CF8M, CF3, CF3M, etc…
Disc Treatment Hard Chrome Plated or Buffing
Flow Characteristics Approximate EQ% (Inherent Characteristic)
Rangeability 70° Opening/50:1, 90° Opening/100:1
Fluid Temperature -45~+250℃ -45~+60℃ -10~+180℃
Seat Type SG FN FV
Seal Ring Material Reinforced Teflon Reinforced Teflon Reinforced Teflon
Back Ring Material A276-316 NBR VITON
Seat Leakage ANSI Class Ⅵ
Actuator Combination

   D100RA: Multi-spring Pneumatic Diaphragm Actuator

   P100RA: Pneumatic Cylinder-Piston Actuator


Double-offset Construction

BT200 3” ~8”

BT200 10” ~16”

BT200 18”~60”


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