Dwyer L8 Installation guide

Brand: Dwyer

Model: L8

Type: Installation guide

Dwyer L8 is a versatile liquid level switch designed to provide accurate set point control for a wide range of liquids with specific gravities as low as 0.6. Constructed from durable polyphenylene sulfide, Ceramic 8, and 316 SS, it offers excellent chemical resistance and a long service life. Suitable for horizontal mounting with the index arrow pointing down, the L8 finds applications in various industries, including environmental control, waste water management, chemical processing, and HVAC systems.

311

Level Switches,

Float

LEVEL

FLOTECT® LIQUID LEVEL SWITCHES

Low Cost, Leak Proof Body, Excellent Chemical Resistance

The Model L8 Flotect® Liquid Level Switches are oat switches constructed

of polyphenylene sulde, Ceramic 8 and 316 SS. This liquid level switch provides

accurate set point control of liquids with specic gravities as low as 0.6.

BENEFITS/FEATURES

• Excellent chemical resistance with oat constructed from durable polyphenylene

sulde and leak-proof body

• Longer life and decreased maintenance costs with liquid level snap switch, which is

magnetically actuated with no direct mechanical linkage to leak or fail

• Quick and easy installation by simple placement of the unit in a horizontal position

with the index arrow pointing down

• Suitable for mounting in a protected environment with UL recognitionas an industrial

motor controller per UL standard 508

APPLICATIONS

• Environmental control

• Waste water

• Scrubber systems

• Holding tanks

• Cooling towers

• Chemical/petroleum processing

• Plating and washing tanks

• Sewage treatment

• Car washes

• Remediation systems

• Thermal storage systems

• HVAC and building automation systems

SWITCH

BODY

1˝ NPT(M)1/2˝ NPT(M)

Ø1-21/32

[42.07]

4-17/32

15.09]

[3] 18 AWG

LEAD WIRES

18 [457.2] LONG 3-1/16

[77.79]

1-5/16 [33.32] OCTAGON

8-5/16

[211.12] 4-5/16

[109.52]

FLOAT

2-17/32

[64.29]

Ø1-1/8

[28.58]

11-13/64

[284.56]

Ø1-21/32

[42.07]

3-1/16

[77.79] 4-5/16

[109.52]

2-17/32

[64.29]

Ø1-1/8

[28.58 ]

4-17/32

15.09]

1 NPTM

1-5/16 OCTAGON

[33.32]

1/2 NPTM

L8 L8-WP2

SPECIFICATIONS

Service: Compatible liquids.

Wetted Materials: Float and body: Polyphenylene sulde (PPS); Pin and spring:

316 SS or Inconel®; Magnet: Ceramic 8.

Temperature Limit: 212°F (100°C).

Pressure Limit: 150 psig (10.34 bar).

Enclosure Rating: General purpose. WP/WP2 option is weatherproof.

Switch Type: SPDT snap switch. MV option is a SPDT gold contact snap switch.

Electrical Rating: 5 A @ 125/250 VAC, 5 A resistive, 3 A inductive @ 30 VDC. MV

option: 1 A @ 125 VAC, 1 A resistive, 0.5 A inductive @ 30 VDC.

Electrical Connections: 18 AWG, 18˝ (460 mm) long.

Conduit Connection: 1/2˝ male NPT, 1/2˝ female NPT on WP and WP2.

Process Connection: 1˝ male NPT.

Mounting Orientation: Horizontal with index arrow pointing down.

Weight: 5 oz (0.142 kg).

Specic Gravity: 0.6 minimum.

Compliance: CE, cURus.

Inconel® is a registered trademark of Huntington Alloys Corporation

MODEL L8

DWYER INSTRUMENTS, LLC | dwyer-inst.com

MODEL CHART

Model Description

L8 Level switch

OPTIONS

To order

add sufx: Description

-INC

-MV

-WP

-WP2

Inconel® alloy. Inconel® alloy replaces standard 316 SS wetted parts.

Wetted parts are Inconel® alloy, ceramic 8, and polyphenylene sulde

Gold plated contacts for dry circuits. Rated 1 A @ 125 VAC; 1 A

resistive, 0.5 A inductive @ 30 VDC

Weatherproof enclosure. Optional housing is phenylpolioxide

and provides weatherproof protection for electrical wiring (not UL

approved)

Weatherproof enclosure. Optional housing is aluminum and provides

weatherproof protection for electrical wiring (not UL approved)

Example: L8-INC

Dwyer L8 Installation guide

Dwyer L8 Installation guide

Dwyer L8 Installation guide

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