Rubber Seated
Butterfly Valve
Series 100/200
S200-0504
401 S. Highland Avenue
Aurora, IL 60506
Phone: 877-436-7977
Fax: 630-844-4124
www.henrypratt.com
Construction Specifications:
Sizes:
2" through 48"
Body:
Cast Iron — Wafer or Lug*
Disc:
Ductile Iron
Epoxy Coated Stainless Steel
Aluminum Bronze
Stem:
Stainless Steel
Resilient Seat:
EPDM
BUNA-N
Viton
Actuation Options:
Worm Gear
Lever
Pneumatic
Electric
Pressure Ratings:
2"-12" — 175 psi
14" and larger — 150 psi
*for installation between ANSI Class 125 flanges
Features:
s All cast body machined to high tolerances. Guaranteed
standard dimensions for interchangeability of parts and
actuators.
s Shaft bushings are impact and corrosion resistant
materials. Protects the shaft from side thrust of actuators.
s Special double-V-shape of stem seal self-adjusts to protect
the stem area for either vacuum or pressure use.
s Stem and body are isolated from line media by seal
created between disc flats and flat surface of seat.
s The special snap-in Resil-O-Seat design fixes seat in
place without bonding. The Resil-O-Seat is 100% field
replaceable — no tools required.
s Molded O-ring in the Resil-O-Seat forms a seal against all
standard flanges. Gasketing requirements are eliminated.
s Disc edge is machined and buffed, providing a bubble tight
shutoff and maximum seat life.
s All valves are factory tested at their rated pressure.
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