
SERIES 102 & 1102
FLANGED CHAMBER TYPE LEVEL CONTROL
Operating Pressures to 300 PSIG
[171.45]
[146.05]
17-1/2
Float
Level Switches,
1-5/8
[41.28]
The Series 102 & 1102 Flanged Chamber Type Level Control is external cage
type level switches which are self-contained in a side mount body. The 102 series
willoperatetoaminimumspecicgravityof0.60andthe1102serieswilloperatetoa
specicgravityof0.40.Theseseriescontainastainlesssteeloatandofferachoice
ofcastiron,caststeel,orcast316stainlesssteeloatchamber.
BENEFITS/FEATURES
• Unique design allows the simple removal of four bolts from the inspection plate to
examinetheoatandchamberforcleaningorwearwithoutdisconnectingthepiping
or electrical circuitry
• Electrical enclosures provide general purpose, weatherproof, explosion-proof
or explosion-proof/vapor proof capability as well as cost effective cast 316 stainless
steeloatchamberoption
• Electrical circuits using hermetically sealed snap action or mercury contacts are
available in a variety of actions including SPST, SPDT, DPDT and DPST combinations
• The102designfeaturesthree1˝NPTprocessconnectionsforside/sideorside/
bottompipingallowingthebottom1˝NPTconnectiontobeusedasadrainwhen
using the side/side process connection
APPLICATIONS
• Pressure or vacuum vessels
• Chemical processing plants
• Steam and electric generating stations
• Hydraulic accumulators
• Vapor-liquid separators
• Scrubbers
• Oilreneries
• Storage tanks
MODEL CHART
Model Switch Type
102-WT-4810-C-60
102-WT-7810-C-60
102-WT-7810HM-C-60
SPDT mercury
SPDT snap
SPDT hermetically sealed snap
DWYERINSTRUMENTS,LLC|dwyer-inst.com318
1 NPT
]
8-1/4
[209.55]
3/4 NPT CONDUIT
CONNECTION. CAN
BE ROTATED 360˚.
B
A
4-7/8
3-1/4
[123.83]
[82.55]
SPECIFICATIONS
Service:Compatibleliquids.Castironisnotforusewithlethalorammable
substances either liquid or gaseous.
Wetted Materials: Body: Cast iron. Optional cast steel or 316 SS; Float and trim:
303 SS, 304 SS, 316 SS, and 430 SS. Option of all 316 SS; Body gasket: Carbon.
Temperature Limit: Ambient Temperature: 212°F (100°C); Process Temperature:
425°F (218°C).
Pressure Limit: 300 psig (20.7 bar). Optional rating to 400 psig (27.6 bar).
Enclosure Rating:NEMA4X(IP66).Optionalgeneralpurposeorexplosion-proof.
Repeatability:±1/4˝(6.4mm).
Switch Type: SPDT snap switch, hermetically sealed snap switch, or mercury
switch. Optional DPDT or two stage.
Electrical Rating: Snap switch: 12 A @ 120 VAC, 5 A @ 240 VAC, 0.5 A @ 125
VDC resistive, 0.25 A @ 250 VDC resistive; Hermetically sealed snap switch: 5
A @ 125 VAC, 5 A @ 240 VAC, 5 A @ 30 VDC resistive; Mercury switch: 4 A @
120 VAC/DC, 2 A @ 240 VAC/DC. Higher contact ratings available for the mercury
switch.
Electrical Connections: Screw terminal.
Conduit Connection:3/4˝femaleNPT.
Process Connections:1˝femaleNPT.
Mounting Orientation: Vertical.
Set Point Adjustment:±1˝(25.4mm).
Specic Gravity: 0.6 min.
Weight: 35 lb (15.9 kg).
Compliance: UL.
USA: California Proposition 65
WARNING: This product can expose you to chemicals including Lead, which is known to the State
of California to cause cancer and birth defects or other reproductive harm. For more information go
to www.P65Warnings.ca.gov.
6-1/8
[155.58]
Specic Gravity A B
1.0
0.6
5-1/16 [129 mm]
5-13/16 [148 mm]
3/4 [19 mm]
1 [25.4 mm]