Fire Safe Design Double Offset Butterfly Valve With Worm Gear 16" ~ 144" Port Size

Long Lifespan Fire Safe Design Double Offset Butterfly Valve With Worm Gear

Through years of development, we develop the metal seated high performance butterfly valve with high temperature working range up to 858 ℃. The end connection is available for wafer, full lug, and double flanges type. With advanced technology, the life time more than 100,000 times cycles.

Features and Benefits

• Standard body materials are 316 SST or WCB. Application specific options include: Alloy 20, Monel, CD3MN, Hastelloy C, Inconel 625, Aluminum Bronze, LCB and others.
• Standard seat materials are RTFE, RTFE/316L SST (Firesafe), and 316L SST (metal seat). Application specific seat materials include: 50/50 STFE, PTFE, PEEK, UHMWPE, TFM-1600 and Inconel 625.
• RTFE and Firesafe seat designs offer bubble-tight, bi-directional shutoff to full ANSI/ASME Class 150# and 300# standards. Metal seat design offers Class V shutoff.
• Blow out proof stem design
• Square Stem
  Stem design facilitates direct mounting of pneumatic and electric actuators or gear operators through 12”. Standard Stem Material is 316 SST for 150# and 17-4 pH or XM-19 for 300#.
• Live Loaded Packing
  Power-Seal HPBFVs come standard with Live Loaded packing. Three sets of Belleville washers are added to each gland stud to maintain a self-adjusting packing load.
• Application Specific Stem Packing
  Standard packing is Graphite. Application specific options include: Double PTFE V-ring or Double PTFE Inverted packing.
• Internally Cast Travel Stop
  Travel Stop prevents over rotation of the disc in an effort to limit possible seat damage.
• Seat Retainer Design
  Seat retainer is designed so the fasteners do not interfere with the flange gasket sealing surface.

Dimensions for Wafer End High Performance Butterfly Valve