(Lug, Wafer, Dbl Flange)
Check Valve Type
Lever Linkage/Cam Act. Type
Relief Valve Type
High Performance Butterfly Valves
3” thru 96” ... ANSI rating from 150# to 1500#
Our high performance Butterfly Valves as standard the use of Laminated Disc Seals for extra tight shut off and long cycle life. We use Teflon, Gylon, Grafoil and Kel-F disc laminations and packing as standard or Will supply materials to customer requirements. The stuffing box is extra deep for double sets of packing with a lantern ring separation. A leak off point is provided in the packing aea. Oversized valve shafts with internal and external bearings are standard. Valve trim is equal or beter than body alloy, Stellite or ultimate hard facing is available.
|Body Unit||Stainless Steel 316,04,(7 H grades), Alloy 20, Duplex S.S., Ferralium; Carbon Steel, Alloy Steels; Monel, Nickle Alloys; Hastelloy, Various Alloy Grades;Inconel, Various Alloy Grades|
|Disc||Stainless Steel 316,04,(7 H grades), Alloy 20, Duplex S.S., Ferralium; Carbon Steel, Alloy Steels; Monel, Nickle Alloys; Hastelloy, Various Alloy Grades;Inconel, Various Alloy Grades|
|Laminated disk seals||Teflon, Gylon, Grafoil, or Customer Specs|
|Packing||Teflon, Teflon & Gylon, Grafoil, or to customer specs|
|Body Seats||Stellite, Ultimate or other overlay|
18”– 300# CHEMICAL Processing Plant – Chlorine and HCI Monel body Gylon seals 250°C · 24”– 600# Crude Oil and Salt Water @ 1480 PSIG, Bubble tight shut off both directions. Carbon Steel, w/ stainless trim · 16”– 1500# RTJ Carbon Steel Body, SST trim class VI shut off with Grafoil laminations and packing – Ammonia service · 6” – 600# Chemical Processing Plant- Steam service carbon steel body, stainless trim, Grafoil laminations and packing · 18” – 150# Chemical Processing Plant – Gas compressor isolation valves, Chlorine vapor, Monel body and trim.
DISC LAMINATIONS & STEM PACKING
Teflon disk and stem packing- 250°F to 450°F. Gylon Disc, Gylon and Teflon Stem packing -20°F to 500°F Grafoil Disc and Stem packing – 325°F to 1800°F Kel-F Disc, Teflon Stem packing –325°F to 250°F
Basic materials to customer specs · ANSI rating from 150# to 1500# · Operating temperatures from –325°F to +1600°F · Fire Safe Design · Wafer body, Lug body, (RF or RTJ) Flanged Ends, weld ends · Oversize high strength valve shafts · Leak off port(s) on stuffing box(s) · Fugitive emission seals · Leakage specification Class IV, V, VI or bubble tight · Internal & external bearings · Manual, pneumatic, or electric actuators