Figure 731 & 732
BUTTERFLY VALVES
RESILIENT SEATED BUTTERFLY VALVE
valves are designed to meet the rigorous
requirements of industrial applications such
and utilities, chemical/petrochemical, food and
beverage, OEM and HVAC. Each valve is
manufactured in accordance with independent
both directions of operation to assure bubbletight service for many years.
Features:
•
• Standard stainless steel disc and stem offer
superior strength and chemical resistance
• Mounting pad with square shaft permits
direct mount actuation that reduces
hysteresis and cost (2" TO 12")
• Secured stem retainer plate for blowout-proof
protection and also allows operator removal
with valve in line
• High strength two-piece stem eliminates
Fig. 731
• Rated to 255 PSI (2"-12"), 188 PSI (14"-24")
• Cartridge style seat permits easy change
without special tools
•
gaskets*
• Lockable Handles
•
•
PSI** (2"-12"), 100 PSI** (14"-24")
Wafer bodies cast iron to 10", ductile iron 12"
•
to 24", and ductile iron lug bodies to 24"
Lever operated to 12" or gear operated
•
•
and improved stem alignment
Vacuum rated to 29.9196"Hg (0.01 Torr)† •
•
• Low maintenance design
Sizes 2" to 24" •
Standards:
• NSF 61 Annex G Certified
(Annex G references NSF 372)
•
•
•
Options:
Fig. 732
Pressed collar style angle face rings (typically sizes 2" to 6") are not recommended due to the large
radius of the inner diameter. Cast type angle face rings or stub ends should be used with light wall
engages the valve seat face.
Actuation including chain wheels, square drive
nuts, worm-gear operators, and pneumatic and
electric operators, control accessories, stem
.
FNW.COM
BUTTERFLY VALVES
VIEW OF "A"
731 Wafer / 732 Lugged - Sizes 2" to 12" (also available with gear)
Figure 731 & 732
731 Wafer / 732 Lugged - Sizes 14" to 24"
U
H3
H2
H1
T
P
A
D
B
L1
Lo
24
4A
4B
10
G2
1
3
2
4
7
6
8
9
5
4
20 21
WAFER
22 23
HxN on
LUG
4 x
G1
S
C b.c.
12 11
18"~24"
BOTTOM
ASSEMBLY
W1
X
Q
W2
TOPWORKS
2
Phone: 503-287-8383 ~ Fax: 503-281-9677 ~ www.FNW.com
Loading...