Page 1

Data Sheet
1109 Process Pressure Gauge
FEATURES
PLUS!™Performance dampens vibration,
shock and pulsation effects
Solid front design with full blowout back
Epoxy coated system offers superior
corrosion resistance
Rugged design
TYPICAL USES
Oil and Gas
Offshore Oil Rigs
Chemical and Petrochemical Plants
Refineries
Waterblasting / Water Jetting Equipment
Specialized OEM Equipment
SPECIFICATIONS
Accuracy: ±0.5% of span (ASME B40.100, Grade 2A)
Size: 41⁄2˝
Ranges: Vacuum, Compound 15 to 100,000 psi
Process Connection
Location:
Process Connection
Size:
Case Style: Solid front with pressure relief back
Movement: Adjustable
Window Material:
Dial: White aluminum with black markings
Pointer: Aluminum
Weather Protection: IP64, IP65 Hermetically sealed
Dampening Options: PLUS!™Performance, throttle screw, dampeners,
Mounting: Stem
Approvals: CRN
WETTED COMPONENTS
Bourdon Tube Process Connection Joints
316L SS,
Inconel® for ranges
greater than 40,000 psi
NON-WETTED COMPONENTS
Case Ring Back Cover
304 SS Cam Lock 300 SS 304 SS
Lower
1
⁄4 NPT Male, 1⁄2 NPT Male
1
⁄4 High pressure tubbing
Glass (STD.), Safety glass (STD.),
Shatter proof glass (OPT.)
capillary, diaphragm seals and snubbers
316 SS Welded
TM
1109
41⁄2˝ dial size
KEY BENEFITS
• Corrosion Resistance
• Superior readability compared to 100mm case
gauges
MIN/MAX TEMPERATURE LIMITS
Version Ambient Process Storage
Dry
-20°F to 200°F
(-29°C to 93°C)
-20°F to 250°F
(-29°C to 121°C)
(-40°C to 121°C)
-40°F to 250°F
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1109_gauge_ ds1.0, Rev. B, 07/18
of 41
ashcroft.com
info@ashcroft.com
1.800.328.8258
Page 2

Data Sheet
1109 Process Pressure Gauge
ORDERING CODE Example:
Dial Size/Model Code
451109 - 41⁄2˝ 300 SS, solid front case 451109
System (tube and process connection)
SD - 316 SS tube, (Vac-30,000 psi) SD
WD - Inconel® 700 tube, 316 SS process connection (40,000-100,000 psi)
Process Connection Sizes
02 - 1⁄4 NPT Male, (up to 20,000 psi)
04 - 1⁄2 NPT Male, (up to 30,000 psi) 04
09 - 1⁄4 ˝ high pressure tubing connection, (40,000-100,000 psi)
Process Connection Location
L - Lower connection only L
Options (If choosing an option(s) must include an “X”)
LL - PLUS!™ Performance LL
TS - Throttle screw
YW - 316 SS case
6B - Cleaned for gasses, oxygen service
PD - Acrylic window
SG - Safety glass
FW - Back flange (welded to case)
C4 - Individual calibration chart (in accordance with ASME B40.100:2013. Accuracy traceable to N.I.S.T)
Range (coding examples only, see range table on page 3 for all standard ranges)
Single Scales
15# - 15 psi 15#
1KG - 1 kg/cm
100KP - 100 kilopascal
2
451109
SD 04
L
XLL 15#
X__
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1109_gauge_ ds1.0, Rev. B, 07/18
of 42
ashcroft.com
info@ashcroft.com
1.800.328.8258
Page 3

Data Sheet
1109 Process Pressure Gauge
1109
psi bar kPa mPa kg/cm
30IMV N1BR N100KP N1MP N1KG
Vacuum
– N1/0.6BR N100/60KP 0.1/0.06MP N1/0.6KG
V/15# – – – –
– N1/1.5BR N100/150KP N0.1/0.15MP N1/1.5KG
V/30# – – – –
– N1/3BR N100/300KP N0.1/0.3MP N1/3KG
V/60# – – – –
Compound
– N1/5BR N100/500KP N0.1/0.5MP N1/5KG
V/100# – – – –
– N1/9BR N100/900KP N0.1/0.9MP N1/9KG
15# 1BR 100KP 0.1MP 1KG
20# – – – –
– 1.6BR 160KP 0.16MP 1.6KG
30# – – – –
– 2.5BR 250KP 0.25MP 2.5KG
60# 4BR 400KP 0.4MP 4KG
– 6BR 600KP 0.6MP 6KG
100# – – – –
120# – – – –
– 10BR 1000KP 1MP 10KG
160# – – – –
200# – – – –
– 16BR 1600KP 1.6MP 16KG
300# – – – –
– 25BR 2500KP 2.5MP 25KG
400# – – – –
500# – – – –
600# 40BR 4000KP 4MP 40KG
800# – – – –
– 60BR 6000KP 6MP 60KG
Positive Pressure
1000# – – – –
1500# 100BR 10000KP 10MP 100KG
2000# – – – –
– 160BR 16000KP 16MP 160KG
3000# – – – –
– 250BR 25000KP 25MP 250KG
4000# – – – –
5000# – – – –
6000# 400BR 40000KP 40MP 400KG
8000# – – – –
– 600BR 60000KP 60MP 600KG
10000# – – – –
15000# 1000BR 100000KP 100MP 1000KG
20000# - - - -
- 1600BR - 160MP 1600KG
30000# - - - -
2500BR - 250MP 2500KG
50000# - - -
- 4000BR - 400MP 4000KG
80000# - - -
- 6000BR - 600MP 6000KG
1109WD Only
100000# - - - -
2
of 43
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1109_gauge_ ds1.0, Rev. B, 07/18
ashcroft.com
info@ashcroft.com
1.800.328.8258
Page 4

Data Sheet
1109 Process Pressure Gauge
DIMENSIONS in [ ] are millimeters
For reference only, consult Ashcroft for specific dimensional drawings
2.44
[62]
ø3.94
[ø100]
ø4.80
[ø122]
2.36
[60]
0.75
[19]
3.98
[101]
0.63
[15.9]
0.87
[22]
THREAD 9/16-18 UNF
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2017 Ashcroft Inc. 1109_gauge_ ds1.0, Rev. B, 07/18
of 44
ashcroft.com
info@ashcroft.com
1.800.328.8258