Murphy L1100 Series - Manual

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Designed for Harsh Gas Compressor Scrubber Applications

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304 Stainless Steel Float Operates in 0.5 Specific Gravity
and Heavier Fluids

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LS200 Series Rated for 2000 psi (13.8 MPa) [138 bar]
Working Pressure

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Electric and Pneumatic Models Available

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Improved Design Provides Better Snap Action and
Dependability with Reduced Number of Moving Parts

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All Models Screw Directly Into the Vessel or Can Be Mounted
Via External Float Chamber

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Nickel Plated Body to Provide

Improved

Corrosion Protection

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Improved Float Connection Thread Design Provides a More
Secure Connection

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Listed for Class I, Div. 1, Grp. C & D Locations

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Canadian Registration Number OF1476.2

LS200

Liquid Level Switches with 2” NPT mounting are

float activated to operate an electrical SPDT snap switch
(optional DPDT on LS200 models) for alarm or shutdown of
an engine or electric motor. The LS200 screws directly into
the vessel wall and can be used with a weld collar or external
float chamber. L1100 models (1-1/2” NPT) are available.

LS200NDVOR

is a float-activated,

p n e u m a t i c - v e n t l e v e l d e v i c e u s e d t o
operate dump valves or similar devices.

The LS200NDVOR provides a 2” NPT
mounting with a pneumatic snap action
output for interfacing with pneumatic
d e v i c e s s u c h a s o u r D V U s c r u b b e r
d u m p v a l v e o r w i t h o t h e r p n e u m a t i c
instrumentation. This unit is supplied
with a pressure filter regulator and
M u r p h y p r e s s u r e g a g e w h i c h a r e
recommended for improved system life
and trouble-free operation.

LS200NDVO

Pneumatic level switch with snap action
Dump Valve Operator (DVO) without the
Pressure Regulator for those applications
where the system provides a filter regulator
for “instrument quality” air or gas as the
control medium.

LS200N

Pneumatic level switch without the DVO
and filter regulator.

LS-04004B

Effective 02-04

Catalog Section 15

(00-02-0561)

LS200 & L1100 Series

Liquid Level Switches

FW

Murphy

Filter/Regulator &
MURPHYGAGE

®

“Instrument

Quality Air/Gas

Supply”

Warranty

A limited warranty on materials and
workmanship is given with this FWMurphy
product. A copy of the warranty may be
viewed or printed by going to
www.fwmurphy.com/warranty.asp.

F W

M u r p h y

P.O. Box 470248 Tulsa, Oklahoma 74147 USA

+1 918 317 4100 fax +1 918 317 4266 e-mail

[email protected]

website

www.fwmurphy.com

Control Systems & Services Division,

P.O. Box 1819;

Rosenberg, TX, 77171 USA •

281-633-4500;

fax +

•

281-633-4588

F W

M u r p h y

Pending

Pneumatic Level Control

Float actuated level snap-acting switch
controls pneumatic pressure to open
and close dump valve.

LS200NDVOR:

Dump Valve Operator,

pressure regulator, and pressure

indicating MURPHYGAGE

.

®

Two piece union design with manual valve operator
allows soft plug and hard seat to be replaced
without disassembling outlet piping or scrubber
pipe connection. Diaphragm actuated valves
operate on 30-70 psi (207-483 kPa; 2-5 bar).

Pneumatic Dump
Valves

See DVU-01069B

for more details.

Control

Panel

High Level Shutdown Switch

Stainless steel float actuated level switches to alarm
and/or shutdown the equipment.

LS200:

2” NPT pipe connection; Rated 2000 psi

(13.7MPa) [137bar]; Class

I

, Division 1. SPDT

snap-switch standard. DPDT Optional.

All Stainless Steel available.

The Murphy Gas Compressor Scrubber Level System (SLS)

T h e s y s t e m p r o v i d e s f o r
liquid control in gas scrubber
a p p l i c a t i o n s , b y d u m p i n g
liquids to drain and protecting
c o m p r e s s o r s w i t h a h i g h
l i q u i d l e v e l s w i t c h . We t t e d
m e t a l p a r t s a r e m a d e t o
s u r v i v e c o n s t a n t u s e i n
c o r r o s i v e e n v i r o n m e n t s .

See Bulletin: SLS-04005B for
more details.

Electric Switch

Pneumatic
Switch