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: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 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: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 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

Product Data

GENERAL PURPOSE GAUGES

P-844U and P-845FF General Panel
Mount Gauges

Spec Number Selection Chart

Model P-844U, V-844U

Connection Ranges 2" Spec No. 2-1/2" Spec No. 3-1/2" Spec No.

30"-0 VAC 164415 164425 138024A

0-15 psi 164416 164426 138025A

0-30 psi 164417 164427 138026A

0-60 psi 164418 164428 138027A

1/8-27 CBM (3-1/2" 1/4-18 NPT)

1/4-18 CBM

0-100 psi 164419 164429 138028A

0-160 psi 164420 164430 –

0-200 psi 164421 164431 138029A

0-300 psi 164422 164432 138030A

0-400 psi 164423 164433 –

0-600 psi 164424 164434 138031A

0-1000 psi – 164435 –

0-2000 psi – 164436 –

0-3000 psi – 164437 –

12GPG -

Model P-845FF, V-845FF

Connection Ranges 2" Spec No. 2-1/2" Spec No. 3-1/2" Spec No.

30"-0 VAC 164439 164449 138052A

0-15 psi 164440 164450 138053A

0-30 psi 164441 164451 138054A

0-60 psi 164442 164452 138055A

1/8-27 CBM (3-1/2" 1/4-18 NPT)

0-100 psi 164443 164453 138056A

0-160 psi 164444 164454 –

0-200 psi 164445 164455 138057A

0-300 psi 164446 164456 138058A

0-400 psi 164447 164457 –

0-600 psi 164448 164458 138059A

On-line order fax: [phone] or e-mail: [e-mail]

Sales/Technical Support: [phone] | 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