BUTTERFLY VALVES
Flowserve offers a wide variety of seat design options to most cost – effectively suit your service requirements.
Standard PFA Seat : 400F
Fire-safe seat : Primary seat before fire – 20F to 400F
High temperature Metal seat after fire 400F to 600F
UHMWPE (abrasion – resistant) seat – 20 to 200F
APEX Metal seat (Class IV ) 400F and 600F Ratings
Triflex metal seat ( Class VI ) in 400, 600, 800, and 1000F configurations
LINED BUTTERFLY VALVES
1/8 in (3mm) thick (norminal) rigid machined PIPE or UHMWPE liner is recessed in body preventing cold flow and facilitating installation.
Disc swing is compatible with ASTM F43-82 fluoropolymer lined pipe.
ASTM A395 ductile cast iron split body provides Popular Double-D shaft drive provides positive valve position indication and simplifies adaption to automatic operation.
Interchangeable actuator mounting plate to accommodates ISO, MSS or special actuators. 10-position locking lever and throttle plate or gear operated options are available.
Epoxy coated body and mounting plate resist the effect of atmospheric corrosion Epoxy coated body and mounting plate resist effect of atmospheric corrosion Wafer or lug body is rated to 150 psi.
