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Process Gauges |
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Product Detail: |
Marsh Process Gauges are first in performance. With over 125 years of proven experience, Marsh offers the most complete line of process instrumentation in the industry. An extensive list of designs and options makes the Marsh line of Process Gauges the intelligent and practical choice in process instrumentation. All case styles feature safecase solid-front construction.
Typical applications include chemical and petroleum chemical processes, compressors, power plants and platforms.
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Part Numbers: |
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Gauge Options: |
| Option |
Type |
Suffix |
Available On Models |
| Restrictors |
Add restrictor |
H |
All ranges |
| Fill Medium |
Glycerine (GL) |
P |
4-1/2" Lower Mount only (all ranges) |
| Silicone (SL) |
PI |
4-1/2" Lower Mount only (all ranges) |
| Catalog Dials |
bar only |
L1 |
See Marsh Price List for minimum |
| kg/cm2 only |
L2 |
| kPa only |
L3 |
| MPa only |
L4 |
| psi & bar |
W1 |
| psi & kg/cm2 |
W2 |
| psi & kPa |
W3 |
| psi & MPa |
W4 |
| Window |
Instrument Glass (GS) |
F1 |
4-1/2" & 6" |
| Safety Glass (SG) |
F3 |
4-1/2" & 6" |
| Cases |
Phenolic Turret (PH) |
J1 |
4-1/2" |
| 4-1/2" Steel Case (LM or LBM) |
J |
4-1/2" (Adjustable pointer only) |
| 6" Hinged Ring Steel Case with U-Clamp |
J |
6" (Adjustable pointer only) |
| Custom Dials |
Logo or Custom Face |
M |
Consult factory for colors and minimums. |
| NOTE: 4-1/2" Lower back mount, 6" Lower mount and 6" Lower back are not fillable (only available dry). |
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| Cart: |
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Purchase Details: |
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Product Contact: |
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| Specifications: |
Accuracy |
ASME Grade 2A – ±0.5% of full scale |
Case Sizes |
4-1/2" and 6" diameter |
Case Material |
Safecase polypropylene (turret style only) & safecase aluminum |
Case Style |
4-1/2"
G – Back flanged case (aluminum)
H – Front flange hinged ring (aluminum)
T – Turret (polypropylene)
6"
G – Back flanged case |
Tube & Socket |
Copper alloy or 316 stainless steel |
Movement |
Stainless Steel |
Connection |
1/4 or 1/2 NPT
LM –Lower Mount
LBM – Lower Back Mount |
Ranges |
0 to 30" Hg VAC; Compound 30" Hg VAC to 300 psi; 15 to 20,000 psi |
Dial Standard |
Single Scale psi |
Dial Color |
Black markings on white |
Pointer |
Aluminum Adjustable Micrometer, black painted |
Window |
Acrylic |
Fill Medium |
Dry or filled. Note: ALL 4-1/2" lower mount Process Gauges are field-
fillable. Optional factory filled
glycerin or silicone |
Safecase |
Safecase construction standard on all Process Gauges |
Vent |
Internal compensating diaphragm |
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Dial Divisions |
Process Gauge Series"P" 0.5% of Span |
Ranges |
Figure Intervals |
Minor Graduations |
Vacuum |
3 |
0.2 |
Compound |
30" Hg VAC to 15 psi |
5 |
3 |
0.5 |
0.2 |
30" Hg VAC to 30 psi |
10 |
5 |
1 |
0.5 |
30" Hg VAC to 60 psi |
10 |
10 |
1 |
0.5 |
30" Hg VAC to 150 psi |
30 |
30 |
2 |
1 |
30" Hg VAC to 300 psi |
30 |
30 |
5 |
2 |
Pressure |
0 to 15 psi |
1 |
0.1 |
0 to 30 psi |
5 |
0.2 |
0 to 60 psi |
5 |
0.5 |
0 to 100 psi |
10 |
1 |
0 to 160 psi |
20 |
1 |
0 to 200 psi |
20 |
2 |
0 to 300 psi |
50 |
2 |
0 to 400 psi |
50 |
2 |
0 to 600 psi |
50 |
5 |
High Pressure |
0 to 1,000 psi |
100 |
10 |
0 to 1,500 psi |
300 |
10 |
0 to 2,000 psi |
200 |
20 |
0 to 3,000 psi |
500 |
20 |
0 to 4,000 psi |
500 |
20 |
0 to 5,000 psi |
500 |
50 |
0 to 6,000 psi |
1,000 |
50 |
0 to 10,000 psi |
1,000 |
100 |
0 to 15,000 psi |
3,000 |
100 |
0 to 20,000 psi |
2,000 |
200 |
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