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Order Sheet Large Multi-Level Switch

 

PAYPAL

    Basic part numbers for large multi-level switches for liquid level control  
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Stainless Steel Probe Part Numbers – any Float

Top Row is Float Type                 SS means – Stainless Steel 316

 

Fitting

2” SS

1 ½” SS

1 9/16” Buna

1 14” Buna

1 7/8”PVC

2” Interface

Flange (X”)

SR x F - 1

SR x F - 2

SR x F - 3

SR x F - 4

SR x F - 5

SR x F - 6

2” NPT

SR20 - 1

SR20 - 2

SR20 - 3

SR20 - 4

SR20 - 5

SR20 - 6

1 ½” NPT

 

SR15 - 2

SR15 - 3

SR15 - 4

SR15 - 5

SR15 - 6

1 Ό” NPT

 

 

 

SR14 - 4

 

 

Ύ” NPT

SR75 - 1

SR75 - 2

SR75 - 3

SR75 - 4

SR75 - 5

SR75 - 6

½” NPT

SR50 - 1

SR50 - 2

SR50 - 3

SR50 - 4

SR50 - 5

SR50 - 6

Ό” NPT

SR25 - 1

SR25 - 2

SR25 - 3

SR25 - 4

SR25 – 5

SR25 – 6

Tube

SR10 - 1

SR10 - 2

SR10 - 3

SR10 - 4

SR10 - 5

SR10 - 6

 

Brass Probe Part Numbers – any Float

Top Row is Float Type              SS means – Stainless Steel 316

 

Fitting

2” SS

1 ½” SS

1 9/16” Buna

1 14” Buna

1 7/8”PVC

2” Interface

2” NPT

BR20 - 1

BR20 - 2

BR20 - 3

BR20 - 4

BR20 - 5

BR20 - 6

1 ½” NPT

 

BR15 - 2

BR15 - 3

BR15 - 4

BR15 - 5

BR15 - 6

1 Ό” NPT

 

 

 

BR14 - 4

 

 

Ύ” NPT

BR75 - 1

BR75 - 2

BR75 - 3

BR75 - 4

BR75 - 5

BR75 - 6

½” NPT

BR50 - 1

BR50 - 2

BR50 - 3

BR50 - 4

BR50 - 5

BR50 - 6

Ό” NPT

BR25 - 1

BR25 - 2

BR25 - 3

BR25 - 4

BR25 – 5

BR25 – 6

Tube

BR10 - 1

BR10 - 2

BR10 - 3

BR10 - 4

BR10 - 5

BR10 - 6

 

Selection Process

 

1) Choose process connection and then the corresponding float part number   -   eg. SR20 - 1 = (SR20 is 2" NPT) - (1 is 2" SS float) 

2) Determine levels and location ( from 1 to 6) per drawing - add the state (see next) of each level eg. SR20 - 1 - 10A - 15A - 20B - 25A   

3) Choose the “state(s)” in the dry position or when holding it in your hand with wires facing up                                                                                

4) N/O (normally open “A”) switch closes on rise and opens on fall  

5) N/C (normally closed “B”) switch opens contact on rise and closes on fall    

6) Choose the unit of measure -   “C” for inches and  “D”  for millimeters - and add to the end of the part number

 

                                                                                                The Example below is a:

 

SR20 - 1 - 10A - 15A - 20B - 25A - C  =  SS body - 2" NPT - 2" SS floats - L1 = 10" N/O  - L2 = 15" N/O - L3 = 20" N/C  - L4 = 25" N/O  in inches

 

 Or: BR50 - 4 - 6A - 18A  - 36B - D   = Brass body - 1/2" NPT - 1 1/4" buna floats - L1 = 6 mm N/O  - L2 = 18 mm N/O  - L3 = 36 mm N/C Note - 1 9/16 and 1 1/4" buna are the same price.

ό  Minimum distance between switch points  - using 1 float / two switches is 1/4" (bottom switch will be N/C - upper will be N/O)

ό  Minimum distance between stations = 3"

ό  2 “ of stem length is required below the last level