Brochure

Description
The isolation flange is a combination of an isolation ball valve and
a companion flange for circulators. The isolation flange allows easy
service or replacement of the circulator without the need to drain
the system. The isolation flange fits the Bell & Gossett NRF/NBF/SSF
wet rotors, Series PL, Series 100, HV, PR and LR circulators.
ISOLATION FLANGES
Operating Data
Maximum Working Pressure: 150 PSI (10 bar)
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Materials of Construction
Valve Body: Lead-Free* Brass
Flange: Chrome Plated Steel
Ball: Chrome Plated Lead-Free* Brass
Packing: PTFE
Seat Ring: PTFE
Stem: Lead-Free*Brass
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0.25% lead content by weight on wetted surface.
Specifications
23
101216LF
101220LF
101218LF
Union Connection for NBF Circulators
Flanges for Cast Iron Circulators
Companion Flanges
Flanges for Bronze Circulators
Model No.
Size
Inches
Use with
Following
Circulators
Dimensions - Inches (mm)
Following Circulators
Approx.
Shpg. Wt.
Ibs. (Kg)
AB C D
101221LF 3/4” NPTF IF
NRF/NBF/SSF
wet rotors
Series PL-30,
PL-36, PL-55
Series 100, PR and LR
Does not include
NRF/NBF-45
3/4” NPT 2-27/64” (61.5) 2” (50.5) 4-47/64” (120) 3.2 (1.5)
101222LF 1” NPTF IF 1” NPT 2-57/64” (73.3) 2-5/32” (54.7) 4-47/64” (120) 4.1 (1.9)
101223LF 1-1/4” NPTF IF 1-1/4” NPT 3-19/64” (84) 3” (76.2) 6-7/32” (158) 5.8 (26)
101241LF 1-1/2” NPTF IF 1-1/2” NPT 3-23/64” (85.5) 3” (76.2) 6-7/32” (158) 6.1 (28)
101226LF 3/4” SWT IF 3/4” SWT 2-41/64” (67) 2” (50.5) 4-23/32” (120) 3.2 (1.5)
101227LF 1” SWT IF 1” SWT 3” (75.3) 2-5/32” (54.7) 4-23/32” (120) 3.9 (1.8)
101228LF 1-1/4” SWT IF 1-1/4” SWT 3-25/64” (86) 3” (76.2) 6-7/32” (158) 5.4 (25)
101243LF 1-1/2” SWT IF 1-1/2” SWT 3-35/64” (90) 3” (76.2) 6-7/32” (158) 6 (27)
“IF” = “Isolation Flange”
Note: Dimensions and weights are approximate and subject to change. Contact factory for certified dimensions.
The part numbers and shipping weights are for two isolation flanges, capscrews and nuts.