PT-96107B
Revised 03-06
Lead Line Pressure
Catalog Section 05
Swichgage® instrument
Model PT167EX
4-1/2 in. (114 mm) Diameter Dial
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Designed to Monitor Line Pressures
of Highly Viscous and Mildly
Corrosive Fluids
*
■
■
■
Combination Indicating Gage and
Critical Pressure Switch
High and Low Pressure Limit Contacts
Are Visible and Adjustable
C
US
**
Explosion-proof Enclosure
Description
Specifications
Dimensions
7-3/16 in.
The Murphy PT167EX is a pressure
Swichgage instrument connected to a
threaded pressure diaphragm housing. The
Swichgage instrument is enclosed in an
explosion-proof case and is CSA rated for
Class I, Division 1, Groups C and D.*
Case: Explosion-proof, sand cast aluminum.
Lens is removable. CSA Listed for Class I,
Division 1, Groups C and D.*
(183 mm)
Contact Rating: 1 A, 125 V AC.
7-3/16 in.
(183 mm)
Dial: 4-1/2 in. (114 mm) white on black,
dual scaled psi /kPa. Other dial configura-
tions available. Consult factory.
Ranges: See How to Order on reverse side.
Gage Accuracy: 3% full scale.
Process Connection: 2 NPT.
A Swichgage instrument is a pressure indi-
cating gage with adjustable low and high
pressure limit switches. When the gage
pointer touches the low or high limit switch-
es, an electrical circuit is completed which
can operate alarms and/or shut down
equipment.
The 2 NPT, sealed-diaphragm housing is
attached directly to the Swichgage connec-
tion. The diaphragm housing is filled with a
silicone fluid so that pressure against the
diaphragm causes the Swichgage instrument
to respond. The housing seals the Swichgage
sensing element from the medium being
measured.
Limit Contact
Adjustment
Knobs
2 NPT
Maximum Pressure: 30% overpressure.
Diaphragm Housing:
5-3/8 in.
(137 mm)
®
Plated steel, Ni-Span ; silicon filled.
Diaphragm Fluid: Silicone 200.
Shipping Weight: 16.5 lb (7.5 kg).
1/2 NPT
Conduit
Connection
Shipping Dimensions: 12 x 12 x 9 in.
9-7/8 in.
(251 mm)
(305 x 305 x 229 mm).
Warranty
A limited warranty on materials and workmanship
is given with this FW Murphy product. A copy of
the warranty may be viewed or printed by going to
Applications
* The PT167EX is CSA listed for ranges 100 to 5000 psi
(689 kPa to 34.5 MPa) [6.89 to 344.74 bar].
Applications include highly viscous liquids
such as crude oil on lead line applications.
Other applications have included asphalt,
sludge, abrasive materials, etc.
**Products covered by this bulletin comply with EMC
Council directive 89/336/EEC regarding electromag-
netic compatibility as noted.
PT-96107B page 1 of 2
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