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Model
L6 |
 Liquid Level Switch
Explosion-proof. Easy in-wall or external installation.
Small size; up to 2000 PSIG operating pressure. |
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The compact Flotect Model L6 Level Switch is designed and built for years of trouble-free service in a wide variety of process liquid level applications. Machined from brass or stainless steel bar stock, the body is leak proof, eliminating the possibility of the process media entering the switch housing. The float level pivoted within the body moves when the process liquid displaces the solid polypropylene or stainless steel float. A magnet on the opposite end of the float level controls a second magnet on the switch actuating lever located in the switch housing. Maintenance is easy since the electrical assembly can be removed for inspection or replacement without removing the entire switch. The stainless steel float lever arm and the polypropylene or stainless steel float are compatible with most process fluids.
The Flotect Model L6 is sensitive to level change or less than ½" (12mm) and is UL/C.S.A Listed for explosion-proof service -- Class I, Groups A*, B, C & D and Class II, Groups E, F & G. CSA and CENELEC models furnished with optional junction box.
(* Group A, stainless steel body only)
PHYSICAL DATA
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Temperature Limits: |
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220°F (107°C) max. |
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Operating Pressure: |
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(Polypropylene float) to 2000 PSIG (140kg/cm2) (304SS
float) to 350 PSIG (25kg/cm2). |
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Electrical Rating: |
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UL.: 5A @ 125/250 VAC. C.S.A. and CENELEC: 5A @125/250
VAC, 5A resistive, 3A inductive @ 30 VDC. Optional ratings: MV option, (gold
contacts for dry circuits) 0.1A @ 125 VAC. MT option (temperatures to 400°F, 205°C),
5A @ 125/250 VAC. Not UL or CSA listed.
Wiring Connections: 18" (460mm) leads, 18 gauge. |
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Minimum Specific Gravity: |
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(Polypropylene float) 0.9 S.G. (round SS float) 0.7
S.G. (cylindrical SS float) 0.5 S.G. |
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Wetted Materials: |
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Style B-S-3-0. Brass 301SS, Polypropylene, Ceramic.
Style B-S-3-A, Style B-S-3C; Brass 301SS, 304SS Ceramic. Style S-S-3-0;
303SS, 301SS, Polypropylene, Ceramic. Style S-S-3-A, S-S-3-C; 303SS, 301SS,
304SS, Ceramic. |
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Switch Body: |
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Brass 3/4" NPT conduit connection. For S.S. switch housing change
model number to L6EPS. |
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Piping Connection: |
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1" NPT. |
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Installation: |
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Horizontal w/index arrow pointing down. |
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Weight: |
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Appx. 1 Ib. (.5kg); appx. 1 3/4 lb. (.8kg) w/external chamber. |
FACTORY STOCKED MODELS
| Model No.* |
Body |
Installation |
Float |
Pressure
Rating, PSI
(KG/CM2) |
Minimum
Specific
Gravity |
| L6EPB-B-S-3-0 |
Brass |
Side Wall Mounting |
Solid Polypropylene |
1000( 70) |
0.9 |
| L6EPB-B-S-3-A |
Brass |
Side Wall Mounting |
Stainless Steel, Cylindrical |
200( 14) |
0.5 |
| L6EPB-B-S-3-C |
Brass |
Side Wall Mounting |
Stainless Steel, Spherical |
350( 25) |
0.7 |
| L6EPB-B-S-3-B |
Brass |
With External Float Mounting |
Solid Polypropylene |
250( 18) |
0.9 |
| L6EPB-B-S-3-H |
Brass |
With External Float Mounting |
Stainless Steel, Spherical |
250( 18) |
0.7 |
| L6EPB-S-S-3-O |
Stainless
Steel |
Sidewall Mounting |
Solid Polypropylene |
2000(140) |
0.9 |
| L6EPB-S-S-3-A |
Stainless
Steel |
Sidewall Mounting |
Stainless Steel, Cylindrical |
200( 14) |
0.5 |
| L6EPB-S-S-3-C |
Stainless
Steel |
Sidewall Mounting |
Stainless Steel, Spherical |
350( 25) |
0.7 |
| L6EPB-S-S-3-S |
Stainless
Steel |
With External Float Chamber |
Solid Polypropylene |
2000(140) |
0.9 |
| L6EPB-S-S-3-L |
Stainless
Steel |
With External Float Chamber |
Stainless Steel, Spherical |
350( 25) |
0.7 |
Options for L6 Switches Above
CSA/CENELEC certified switch with junction box. Add suffix -CN (CENELEC models available with stainless steel floats only)
DPDT Contacts Change seventh character in model number to "D"
Example: L6EPB-B-D-3-0
MT Option For higher temperature applications to 400°F (205°C). Available on all models with stainless steel floats (5A @ 125/250 VAC). Add suffix -MT
MV Option Gold plated contacts (0.1A @ 125 VAC). Add suffix -MV
Suggested Specification:
Automatic Explostion-proof level switches shall be operated by a (solid polypropylene) (stainless steel) float actuating (one) (two) single pole, double throw switch(es) rated at 5 amps, 125/250 VAC. Motion of the float shall actuate switch by action of a magnet which controls the switch inside the one-piece switch body. Switches shall be W.E. Anderson Model No. L6____.
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