Armstrong Flex Flange User manual

1. Tighten bolts holding the Flex Flange and circulator flanges together by applying torque in equal amounts to
both flange bolts. Check pumps I&O for appropriate torque values.
WARNING: Ensure that Flex Flanges are installed with pump gaskets and that flange bolts are properly
tightened. Failure to follow these instructions will result in pump leakage, which may cause
property damage and/or personal injury.
2. Inspect connections for leaks after completing the installation.
OPERATION
1. In the open position, the lever handle of the Flex Flange is perpendicular to the flange (as shown in Fig. 2).
2. To close the valve and isolate the pump from the system, turn the lever handle clockwise 90º. In the closed
position, the lever handle of the Flex Flange is parallel to the flange (as shown in Fig. 3).
Fig. 2 Flex Flange in OPEN position Fig. 3 Flex Flange in CLOSED position
Table 1.
Gasket information
Size 1.390 ID x 2.203 OD
x .250 thk 1.828 ID x 2.187 OD x .250 thk 1.625 ID x 2.187 OD x .250 thk 2.187 ID x 2.562 OD x .218 thk
Use With Astro Flanged
Circulators: 20, 25,
30, 50, 70 / S25
E Series: E7, E8, E9,
E12, E14, E15, E17,
H41 H51 , H52, H53, E Series: E10, E11, E13,
E19, E21, E22, E23,
E24, H63, H 64, H65
Included on Flex Flange sizes
0.5 Yes Yes NR NR
0.75 Yes Yes NR NR
1 Yes Yes Yes Yes
1.25 NR Yes Yes Yes
1.5 NR NR Yes Yes
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Fig. 4 Gaskets (to size)
S. A. Armstrong Limited Armstrong Pumps Inc. Armstrong Holden Brooke Pullen
23 Bertrand Avenue 93 East Avenue Wenlock Way
Toronto, Ontario North Tonawanda, New York Manchester
Canada, M1L 2P3 U.S.A. 14120-6594 United Kingdom, M12 5JL
T: [phone] T: [phone] T: [phone]
F(Main): [phone] F: [phone] F: [phone] © S.A. Armstrong Limited 2007
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