MCDONNELL & MILLER FS7-4F 1 1/4 FS7-4 FOR SPRINKLER SYS

Universal design serves the widest variety of large pipe applications, including heating and hydronic systems, air conditioning, refrigeration and process work
1 14 NPT
Brass with sealed tube construction
Single pole, double throw snap switch
Magnetic switching mechanism eliminates need for bellows
Sensitivity adjusting screw makes flow adjustment easy
Paddles can be trimmed to suit application needs
Optional features
Extended paddle arm Model FS7-4L
Two SPDT switches to make or break two separate circuits
Stainless steel body and paddles
BSPT threads
Minimum temperature (fluid or ambient) 32F (0C)
Maximum temperature 300F (149C)
Maximum operating pressure
300 psi (21 kg/cm2)
1000 psi (70 kg/cm2) Stainless Steel models