Model |
Fluid Cap/Manifold |
Center Section |
Seat/Ball Material |
Diaphragm Material |
Air Section Service Kit |
Fluid Section Service Kit |
Fluid Connection |
Weight lbs (Kg) |
6661A3-3EB-C |
Polypropylene |
Aluminum |
Polypropylene / Santoprene |
Santoprene |
637118-C |
637161-EB-C |
1" A.N.S.I. Flange (3 - piece manifold) |
20.3 lbs (9.2 kgs) |
6661A3-344-C |
Polypropylene |
Aluminum |
Polypropylene / PTFE (Teflon) |
PTFE (Teflon) w/ Santoprene backer |
637118-C |
637161-44-C |
1" A.N.S.I. Flange (3 - piece manifold) |
20.3 lbs (9.2 kgs) |
6661B3-344-C |
Polypropylene |
Cast Iron |
Polypropylene / PTFE (Teflon) |
PTFE (Teflon) w/ Santoprene backer |
637118-C |
637161-44-C |
1" A.N.S.I. Flange (3 - piece manifold) |
28.8 lbs (13.1 kgs) |
6661A4-444-C |
PVDF (Kynar) |
Aluminum |
PVDF (Kynar) / PTFE (Teflon) |
PTFE (Teflon) w/ Santoprene backer |
637118-C |
637161-44-C |
1" A.N.S.I. (3 - piece manifold) |
28.5 lbs (12.9 kgs) |
6661B4-444-C |
PVDF (Kynar) |
Cast Iron |
PVDF (Kynar) / PTFE (Teflon) |
PTFE (Teflon) w/ Santoprene backer |
637118-C |
637161-44-C |
1" A.N.S.I. (3 - piece manifold) |
37.0 lbs (16.8 kgs) |
