US Gauge P-844U, P-845FF Data Sheet
Product Data
GENERAL PURPOSE GAUGES
P-844U and P-845FF General Panel
Mount Gauges
10GPG -
DESCRIPTION
Utilizing either front flanged or U-clamp cases, these attractive panel mount gauges can be flush mounted on
instrument panels, pressure test stands, steam cleaners,
sterilizers, and many other types of equipment. Where a
minimum of space is available the 844 U-clamp series is
more desirable. When it is desirable to mount the gauge
from the front of panel, the 845 front flanged series may
be specified. All models utilize a unique one piece plastic
threaded ring and window which can be removed, permitting in-panel pointer adjustment. Optional stainless
steel bourdon tube and socket for use where the pressure medium is corrosive to copper alloys is available.
Model P-844U
U-Clamp Mount
SPECIFICATIONS
SIZES: 2", 2-1/2", 3-1/2"
RANGES: V-844U, V-845FF: 30" Hg VAC
P-844U, P-845FF: 0-15 psi though 0-3000 psi*
ACCURACY: ±3-2-3% of span (Grade B)
BOURDON TUBE: Pressure ranges above 15 psi up to and
including 1000 psi are phosphor bronze, soft soldered
2000 and 3000 psi are phosphor bronze, silver soldered
Vacuum and 15 psi are beryllium copper, soft soldered
WINDOW AND RING: Threaded, polycarbonate
MOVEMENT: Brass
DIAL: Steel, white background with black markings. Utilizes the
“zero band” concept where the zero graduation and numeral
are replaced with a band representing the total accuracy
tolerance at zero
POINTER: Aluminum, adjustable with black finish
CASE: 844: Drawn steel, with studs, U-clamp and nuts, black
corrosion-resistant paint, furnished with two piece U-clamp
and nuts, zinc plated
845: Drawn steel with three hole flange, black corrosionresistant paint
CONNECTION: CBM, brass; 1/8-27 NPT: 2" and 2-1/2" up to
600 psi; 1/4-18 NPT: 2-1/2" 1000 psi and above and all 3-1/2"
gauges
Other sizes, ranges, and mounting configurations are available for OEM
quantities
* 0-160 and 0-400 only available in 2", 2-1/2";
0-1000, 0-2000 and 0-3000 only available in 2-1/2" P-844UK only
Model P-844FF
Front Flanged
Panel Mount
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
Product Data
Models
Models
E1, E2
1/4-18 NPT (E2)
GENERAL PURPOSE GAUGES
P-844U and P-845FF General Panel
Mount Gauges
11GPG -
P-844U and
V-844U
Q
P
G
N E1, E2
S
10-32 UNF THREAD
T
THREAD:
1/8-27 NPT (E1)
1/4-18 NPT (E2)
T2
INCHES
(MM)
P-845FF and
V-845FF
120º 120º
3 HOLES
J
øH
QN
A
G
THREAD:
1/8-27 NPT (E1)
Dimensions – Models P-844U and V-844U
Dial Sizes Unit E1 E2 G H P Q S T T2
2"
2-1/2"
3-1/2"
inches
mm
inches
mm
inches
mm
.71
18.03
.71
18.03
–
–
–
–
.77
19.56
.78
19.05
2.28
57.91
2.81
71.37
3.94
100.08
1.12
27.69
1.12
27.69
1.09
27.69
2.11
53.85
2.56
65.79
3.64
93.73
.24
6.10
.28
7.62
.28
8.13
.79
20.57
.79
20.57
.81
20.57
1.62
41.15
2.20
55.88
3.25
82.55
Dimensions – Models P-845FF and V-845FF
Dial Sizes Unit A E1 E2 G H J N P Q
2"
2-1/2"
3-1/2"
inches
mm
inches
mm
inches
mm
2.25
57.15
2.80
71.12
3.88
98.55
.72
18.03
.72
18.03
–
–
–
–
–
–
.78
19.05
2.82
71.37
3.52
89.66
4.84
122.94
.156
3.96
.156
3.96
.219
5.56
2.562
65.08
3.125
79.38
4.25
107.95
1.12
27.69
1.12
27.69
1.09
27.69
2.11
53.85
2.56
65.79
3.68
93.73
P
.75
19.05
.75
19.05
.75
19.05
.24
6.10
.28
7.1
.29
7.37
Panel Cutout Dimensions
Dial Size Unit Panel Cutout
2"
2-1/2"
3-1/2"
inches
mm
inches
mm
inches
mm
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.
2.17
55.1
2.64
67.1
3.73
94.7
www.ametekusg.com
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