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Product Data
PROCESS GAUGES
SOLFRUNT® 4-1/2" Model 1981
and Model 1981 Advantage with
Dampened Movement
10PG -
DESCRIPTION
The Model 1981 and 1981 Advantage 4-1/2" process
gauges have all 316L stainless steel wetted surfaces
with a seamless Bourdon tube. The 1981 Advantage
includes a dampened movement option to provide
users with some of the benefits of liquid filling. These
gauges have a PET turret style case for chemical and
petrochemical processing applications. The PET material
gives this case superior impact strength and a broad
spectrum of chemical resistance. They are available
dry, with a dampened movement, or liquid filled from
the factory. Your local stocking distributor can provide a
liquid fill kit, or the E-Z Fill design to facilitate filling in the
field without special tools.
The Model 1981 and 1981 Advantage 4-1/2"
SOLFRUNT gauges are supplied in 26 vacuum, compound, and pressure ranges from 30" Hg vacuum
through 11600 psi. The low-connected PET turret case
can be easily liquid filled in the field using the appropriate conversion kit.
Span adjustments can be accomplished from rear of
case without disturbing the gauge internals. Pointer adjustments are easily made by removing ring and window,
and using the adjustment screw on the micro-adjustable
pointer.
SPECIFICATIONS
SIZES: 4-1/2"
ACCURACY: ±0.5% of span (Grade 2A), except where seamless
stainless steel bourdon tubes are used in following ranges:
Type 316L from 10000 to 11600 psi; accuracy is ±0.5% on
ascending pressure and ±1.0% on descending pressure
BOURDON TUBE: 316L seamless stainless steel/TIG welded
WINDOW: High temperature acrylic, laminated shatter-resistant
glass options available (G038312)
MOVEMENT: Geared movement with components of corrosionresistant 300 series stainless steel; optional dampened
movement available on Advantage unit
DIAL: Aluminum with baked white background and black
markings (dual scale and custom dials available)
POINTER: Anodized aluminum, micro-adjustable with black
finish (optional lazy hand, 132371 for dry gauges only)
CASE AND RING:
For Stem or Wall Mounting:
PET turret case (black) with glass-filled polypropylene threaded
ring and pressure-relieving back, EZ Fill option available
CONNECTION: 316L stainless steel, 1/2-14 ANPT standard (1/418 ANPT, optional)
LIQUID FILLING: The Model 1981 is also available in liquid filled
or field fillable (E-Z Fill) configurations. Please reference the
Spec Number Selection Chart in this section.
SOLFRUNT Model 1981
On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com
Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A.
© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)
Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.
SOLFRUNT
Model 1981 Advantage
with dampened movement
www.ametekusg.com
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Product Data
PROCESS GAUGES
SOLFRUNT® 4-1/2" Model 1981
and Model 1981 Advantage with
Dampened Movement
11PG -
(148.3)
270º
0.88
(22.2)
SQUARE
THREAD
ARC
2.62
(66.5)
ø0.22
(5.6)
3 HOLES
INCHES
(MM)
PET TURRET CASE
MOUNTING
CONFIGURATION
5.38
(136.5)
ø0.25
(6.4)
MINIMUM
5.06
(128.6)
0.58
(14.6)
Spare Parts
Part Description Part No.
Panel Mount Kit
Panel Mount Kit for
Flush Mounting 1981,
1980 and 1929
(79.5)
MAX.
047631
1.58
(40.1)
Spec Number Selection Chart
Model Number 1981 Advantage
+
Bourdon Tube 316L Stainless Steel 316L Stainless Steel
Socket 316L Stainless Steel 316L Stainless Steel
Movement Dampened Standard
Sizes 4-1/2" 4-1/2"
Ranges* Spec No. Spec No.
0-30" Hg VAC
30"-0-15 psi 150017DM 150017
30"-0-30 psi 150018DM 150018
30"-0-60 psi 150019DM 150019
30"-0-100 psi 150020DM 150020
30"-0-150 psi 150021DM 150021
0-15 psi 150022DM 150022
0-30 psi 150023DM 150023
0-60 psi 150024DM 150024
0-100 psi 150025DM 150025
0-160 psi 150026DM 150026
0-200 psi 150027DM 150027
0-300 psi 150028DM 150028
0-400 psi 150029DM 150029
0-600 psi 150030DM 150030
0-800 psi 150031DM 150031
0-1000 psi 150032DM 150032
0-1500 psi 150033DM 150033
0-2000 psi 150523DM 150523
0-2300 psi 150034DM 150034
0-3000 psi 150509DM 150509
0-3500 psi 150035DM 150035
0-5000 psi 150510DM 150510
0-6000 psi 150036DM 150036
0-10000 psi 150524DM 150524
0-11600 psi 150037DM 150037
150016DM 150016
1981
+
* Metric and dual scale dials are available on all 1900 Series gauges
+
When ordering E-Z Fill option – use 170XXX (for 1/2-14 ANPT); use 175XXX
(for 1/4-18 ANPT)
1/4–18 ANPT available – use 155XXX when ordering
On-line order fax: +1 215-323-9450 or e-mail: usg.sales@ametek.com
Sales/Technical Support: +1 215-293-4100 | 205 Keith Valley Road | Horsham PA 19044 U.S.A.
© 2013, by AMETEK, Inc. All rights reserved. Printed in the U.S.A. PDF513 (160174)
Specifications are subject to change without notice. Visit our Web site for the most up-to-date information.
www.ametekusg.com