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Bob® Copper
Floats

Brass Stems
& Adaptors

R440 Series Spherical Copper Floats
  • Two copper float halves soldered together using an inside lapping joint
  • Female Thread Spud Connection (For Male Thread on Stem)
  • Lead-Free solder
  • For open tank service only
  • * 10" & 12" models are special order w/extended lead time
  • Special orders are non-returnable, non-cancelable
  • Made in USA
Part
Number		 Float
Diameter		 Buoyancy
(Lbs.)		 Spud
Connection		 Weight
(Lbs.)
R440-3 3" .34 1/4-20 SAE .19
R440-4 4" .80 1/4-20 SAE .38
R440-5 5" 1.73 1/4-20 SAE .56
R440-6 6" 3.26 1/4-20 SAE .69
R441-6 6" 3.26 5/16-18 SAE .69
R442-6 6" 3.26 3/8-16 SAE .69
R440-7 7" 5.72 3/8" FIP 1.38
R441-7 7" 5.72 5/16-18 SAE 1.38
R442-7 7" 5.72 3/8-16 SAE 1.38
R440-8 8" 8.03 3/8" FIP 1.94
R442-8 8" 8.03 3/8-16 SAE 1.94
*R440-10 10" 16.66 1/2" FIP 3.25
*R442-10 10" 16.66 3/8-16 SAE 3.25
*R440-12 12" 28.38 3/4" FIP 4.50
*R442-12 12" 28.38 3/8-16 SAE 4.50
R440 Series Spherical Through Hole Copper Floats
  • Two copper float halves soldered together using an inside lapping joint
  • Internal Rod Guide Tube
  • No Spud Connection
  • Lead-Free solder
  • For open tank service only
  • All through hole models are special order w/extended lead time
  • Special orders are non-returnable, non-cancelable
  • Made in USA
Part
Number		 Float
Diameter		 Fits Rod
Diameter		 Hole
Size		 Buoyancy
(Lbs.)		 Weight
(Lbs.)
R440-3-SR250 3" 1/4" .325 .34 .19
R440-3-SR375 3" 3/8" .402 .34 .19
R440-3-SR500 3" 1/2" .555 .34 .19
R440-4-SR250 4" 1/4" .325 .80 .38
R440-4-SR375 4" 3/8" .402 .80 .38
R440-4-SR500 4" 1/2" .555 .80 .38
R440-5-SR250 5" 1/4" .325 1.73 .56
R440-5-SR375 5" 3/8" .402 1.73 .56
R440-5-SR500 5" 1/2" .555 1.73 .56
R440-6-SR250 6" 1/4" .325 3.26 .69
R440-6-SR375 6" 3/8" .402 3.26 .69
R440-6-SR500 6" 1/2" .555 3.26 .69
R440-7-SR250 7" 1/4" .325 5.72 1.38
R440-7-SR375 7" 3/8" .402 5.72 1.38
R440-7-SR500 7" 1/2" .555 5.72 1.38
R440-8-SR250 8" 1/4" .325 8.03 1.94
R440-8-SR375 8" 3/8" .402 8.03 1.94
R440-8-SR500 8" 1/2" .555 8.03 1.94
R440-10-SR250 10" 1/4" .325 16.66 3.25
R440-10-SR375 10" 3/8" .402 16.66 3.25
R440-10-SR500 10" 1/2" .555 16.66 3.25
Other Copper Floats
  • Two copper float halves soldered together using an inside lapping joint
  • Female Thread Spud Connection (For Male Thread on Stem)
  • Lead-Free solder
  • For open tank service only
  • Made in USA
Part
Number		 Float
Dimensions		 Buoyancy
(Ozs.)		 Spud
Connection		 Weight
(Ozs.)
RM141 4" Dia x 7"

Oval

35.00 Oz 1/4-20 SAE 9.58 Oz
Brass Stems
  • Brass Metal Rod (SAE) or Red Brass Pipe (MIP)
  • Male Thread on Both Ends
  • Custom Bent Stems Available
  • Custom Stem Lengths Available
Part
Number		 Length Thread
Type
R450-6 6" Male 1/4-20 SAE
R450-8 8" Male 1/4-20 SAE
R450-10 10" Male 1/4-20 SAE
R450-12 12" Male 1/4-20 SAE
R450-1-6 6" Male 1/4-20 SAE Heavy Duty (.250 Dia. Rod)
R450-1-8 8" Male 1/4-20 SAE Heavy Duty (.250 Dia. Rod)
R450-1-10 10" Male 1/4-20 SAE Heavy Duty (.250 Dia. Rod)
R450-1-12 12" Male 1/4-20 SAE Heavy Duty (.250 Dia. Rod)
R451-12 12" Male 1/4-20 SAE x Male 5/16-18 SAE
R452-12 12" Male 3/8-16 SAE
R453-12 12" Male 3/8-16 SAE x Male 5/16-18 SAE
R455-12 12" Male 1/8" Pipe (1/8" MIP)
R457-12 12" Male 3/8" Pipe (3/8" MIP)
R457-16 16" Male 3/8" Pipe (3/8" MIP)
A3096-12 12" Male 5/16-18 SAE

R209 Series Brass Adaptor

  • Adapt Male Pipe Thread Stems to Floats Having Female Pipe Threads
Part
Number		 Thread
Combination
R209-3/8 x 1/8 3/8" MIP x 1/8" FIP
R209-3/8 x 1/4 3/8" MIP x 1/4" FIP
R209-1/2 x 1/4 1/2" MIP x 1/4" FIP
R209-3/4 x 1/4 3/4" MIP x 1/4" FIP
R434 Series Brass Plug Adaptor
  • Adapt Male SAE Thread Stems to Floats Having Female Pipe Threads

Part
Number

Thread
Combination
R434-0 Female 1/4-20 SAE x 3/8" Male Pipe (3/8" MIP)
R434-1 Female 5/16-18 SAE x 3/8" Male Pipe (3/8" MIP)
R434-3 Female 1/4-20 SAE x 1/2" Male Pipe (1/2" MIP)
R434-5 Female 1/4-20 SAE x 3/4" Male Pipe (3/4" MIP)
R434-7 Female 5/16-18 SAE x 1/2" Male Pipe (1/2" MIP)
R434-9 Female 5/16-18 SAE x 3/4" Male Pipe (3/4" MIP)
R434-11 Female 3/8-16 SAE x 3/8" Male Pipe (3/8" MIP)
R434-13 Female 3/8-16 SAE x 1/2" Male Pipe (1/2" MIP)
R434-15 Female 3/8-16 SAE x 3/4" Male Pipe (3/4" MIP)
R435 Series Brass Adaptor
  • Adapt Female SAE Thread Floats to Stems Having Male Pipe Threads
  • Adapt Female SAE Thread Floats to Stems Having Male SAE Threads
  • Adapt Female SAE Thread Short Arms to Stems Having Male Pipe Threads
  • Adapt Female SAE Thread Short Arms to Stems Having Male SAE Threads

Part
Number

Thread
Combination
R435-1 Male 1/4-20 SAE x Female 1/8" Pipe (1/8" FIP)
R435-2 Male 1/4-20 SAE x Female 1/4" Pipe (1/4" FIP)
R435-3 Male 1/4-20 SAE x Female 3/8" Pipe (3/8" FIP)
R435-4 Male 1/4-20 SAE x Female 5/16-18 SAE
R435-5 Male 1/4-20 SAE x Female 3/8-16 SAE
R435-6 Male 5/16-18 SAE x Female 1/4-20 SAE
102263 Series Brass Adaptor
  • Adapts 8-32 Male Stem to 1/4-20 SAE Male Threads for Larger Floats

Part
Number

Thread
Combination
102263-1 Male 1/4-20 SAE x Female 8-32 SAE
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