Inquiry (采购产品): Butterfly damper Here are the specs for some dampers that I'd like you to quote. The duct diameter size is not finalized so please quote two 52?" and two 42?" dampers. Blast Damper- normally closed Application: Controls combustion air entering burners. Quantity: 2 Diameter: 52 ?” OD, shell thickness ?” Temperature: 1150°F nominal, 1200°F max. Flow: 8000-20,000 scfm @ 1150°F, excursions to 25,000 scfm (15min/week) Seal: Tadpole design, near 100% Closing: 5 seconds, Fast acting failsafe return on loss of air pressure, control power or 4-20mA signal Pressure: 175” w.c. Max total pressure, 175”w.c. Max differential pressure, 110” or 140”w.c. Normal operating pressure. Control: On/Off, Limit switch Mounting: Face-to-face, flange Accessories: Companion rolled angle flanges shipped loose, gaskets and bolts Option 1: Quote with your positioner Option 2: Quote with Siemens SIPART PS2 electropnuematic positioner Request: Break out the cost of positioner on quote sheet Alternate sizes: 42 ?” OD ducts **** Hidden Message ***** Bill Schueller 1329 W. Grand Ave Suite 100 Port Washington, WI 53074 USA Company: Kuttner LLC Title: Engineer Phone: 262-284-4483 Fax: 262-284-4484 E-mail: b.schueller@kuttnerllc.com **** Hidden Message ***** b.schueller@kuttnerllc.com
