Double Tapped

•    Bronze cast body
•    Bronze cast poppet
•    Female threads
•    Sizes 3/4” - 2” are VFD Compatible

All Simmons bronze check valves are CERTIFIED LEAD FREE and include Buna-N O-Ring, stainless steel spring, stainless steel washer, and stainless steel locknut. All valves ¾” through 1 ½” have a working pressure of 400 PSI, while valves 2” and larger have a working pressure of 600 PSI. Check valves rated for 190°F maximum temperature.

Part No.

Tapped

Size

Inlet

Outlet

Weight lbs

541SB
580SB
542SB
581SB
588SB
543SB
582SB
589SB
544SB
583SB
533SB
545SB
584SB
546SB
547SB
548SB

3/4
3/4
1
1
1
1 1/4
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
2
2
2 1/2
3
4

1/8
1/4
1/8
1/4
1/8
1/8
1/4
1/8
1/8
1/4
1/8
1/8
1/4
1/8
1/8
1/8

1/4
1/4
1/4
1/4
1/8
1/4
1/4
1/8
1/4
1/4
1/8
1/4
1/4
1/4
1/4
1/4

.8
.8
1.2
1.2
1.2
1.7
1.7
1.7
2.0
2.0
2.0
3.7
3.7
9.8
10.1
23.5

Flow charts

certification

warranty