| |
|
|
Small Size – Alloys, Combines Durability of Metal With a Compact Design for Restricted Spaces
These compact units feature the rugged durability of stainless steel or brass construction in a lightweight package. Ideal for tanks less than 4 feet. LS-700 Series switches are exceptionally versatile because of the many useful options available. Described briefly below, these options can extend the functionality of your LS-700 Series custom switch.
To specify, review the choices in mounting types, stem material, float size and material, switching points, and electrical specifications. |
 |
 | |
| |
| |
|
|
|
|
|
|
| Mounting Types: |
|
| Each mounting type can be configured with stem lengths Lo and float materials indicated in the table below. |
|
|
 |
 |
 |
 |
 |
 |
|
|
Type 1 |
Type 2 |
Type 3 |
Type 4 |
Type 5 |
Type 6 |
No Mounting |
|
|
1/8" NPT |
3/4" NPT † |
1" NPT † |
3-5/8" dia. Flange |
1-5/16"-12UNF-2A |
3/8"-24 |
|
| †Mounting Types 2 & 3 are available with a 1/2" MNPT conduit adaptor. |
|
| Note: Sanitary flange mountings are also available, but not shown. Please contact factory. |
|
| Stem and Mounting Material |
Brass or Stainless Steel |
|
| Max Length (Lo) |
48 inches (121.9 cm) - 21" Max On Bent Stem Versions (Consult Factory) |
|
| Mounting Position |
Vertical ± 30 degrees Inclination |
|
| Float Stops * |
Brass Units: Berylilum Copper Grip Rings; Stainless Steel Units: S.S. ARMCO PH-15-7MO Grip Rings |
|
| Pressure Rating, PSI, Max.** |
See Float Value on Following Page |
|
| *In some instances, concentrations of chlorine and other corrosive compounds in the media require the use of collar type float stops. Consult factory for details. |
|
| ** Mounting only. Maximum pressure rating for complete unit will be the lower of this pressure or the selected float pressure (see Float Types, on next page). |
|
|
|
|
|
|
|
|
|
|
 |
 |
 |
 |
 |
 |
 |
|
39049 |
138030 |
133764 |
60241 |
141750 |
156900 |
136550 |
158369 |
| A single float type is selected for use at all actuation points. |
| Part Number |
Float Material |
Compatible Mounting Types |
Operating Temperature |
Pressure, |
M" Liquid Specific Gravity |
| PSI, |
|
| 39049 |
Buna N |
1, 3, 4, 5, 6, 7 |
Water: to 180°F (82.2°C) |
300* |
0.5 |
| 138030 |
Buna N |
1, 2, 3, 4, 5, 6, 7 |
250* |
0.6 |
| 133764 |
Teflon |
1, 2, 3, 4, 5, 6, 7 |
-40°F to 300°F (-40°C to 148.9°C) |
1000* |
0.65 |
| 60241 |
316 S.S.** |
1, 4, 6 |
100 |
0.7 |
| 141750 |
316 S.S.** |
1, 3, 4, 5, 6, 7 |
275 |
0.9 |
| 156900 |
316 S.S.** |
1, 4, 5, 6, 7 |
600 |
0.9 |
| 136550 |
316 S.S.** |
1, 2, 3, 4, 5, 6, 7 |
400 |
1.1 |
| 158369 |
304 S.S. |
1, 2, 3, 4, 5, 6, 7 |
150 |
0.85 |
| 145730 |
Polypropylene |
1, 3, 4, 5, 6, 7 |
-40°F to 225°F (-40°C to 107°C) |
50 |
0.6 |
| *De-rated with increasing temperature. |
| ** 316 Stainless Steel floats are available with ceramic potting that allows temperatures to 500°F (260°C); contact factory for these high-temperature floats. |
|
|
|
|
|
|
|
|
|
|
| Typically, one float is required for each point at which you need a switch action to occur. The number of actuation levels available depends on the Group Type Wiring selected. |
|
|
| Group I Wiring |
1 to 5 Actuation Levels |
|
|
| Group II Wiring |
48 inches (121.9 cm) - 21" Max On Bent Stem Versions (Consult Factory) |
|
|
| Switch (SPST, N.O. or N.C.) |
20 /100 VA. |
|
|
| Lead Wires |
#22 AWG, 24"L., Teflon |
|
|
| Approvals |
LS-700 Series switches are U.L. Recognized – File No. E45168; CSA Listed – 30200. |
|
| |
|
|
| |
| |
 |
|
