Series 420 Durablock® Inclined/Vertical Manometer
Accuracy to ±0.25%
Dwyer® Series 420 Inclined-Vertical Manometer are extremely accurate instruments designed and made especially for precision measurement of low differential pressures in laboratory and test applications. The inclined range bore has a length of 20" to provide ample multiplication of indicating fluid movement in this critical lower part of the range.
NIST CALIBRATION available in Product Configurator.
Click here, if you require a Safety Data Sheet for the Blue Gage Fluid or the Red Gage Fluid.Product Applications
- Low pressure laboratory and test applications
Starting at $1,380.80
Features
- 1-1/4" THICK ACRYLIC PLASTIC BODY is a solid block, virtually unbreakable, stable and absolutely free of the danger of distortion.
- 3/16" BORES, ACCURATE TO ± .0002" are permanently free of bends or crooks, will not require recalibration because of distortion.
- GROUND GLASS BUBBLE LEVEL sensitive to 115-125 sec./2 MM. is 1-1/2" long x .375" diameter and provided with two red lines for easy visibility and alignment.
- PARALLAX-FREE READING for maximum accuracy and consistency is achieved by simply aligning the meniscus with its image reflected in the polished aluminum scale.
- SELECTED GAGE FLUID with high wetability characteristics forms a consistent, well shaped meniscus for perfect readability.
- O-RING SEALED FLUID LEVEL PLUNGER ADJUSTMENT for easy zeroing.
- PRECISION BUILT to assure device meets the highest standards.
Product Literature
Manuals
Catalog Pages
SDS
Model Chart
SERIES 421| EXAMPLE | 421 | 5 | B | Series 421-5-B Durablock® Inclined-Vertical Manometer, single column, 6-1/2" inclined scale, range 0-1" w.c. inclined and 1-5" w.c. vertical, with type B connections. |
| SERIES | 421 | Single Column, 6-1/2" Inclined Scale | ||
| RANGE |
5 10 23 130MM 250MM 58CM |
0-1" w.c. Inclined and 1-5" w.c. Vertical 0-1" w.c. Inclined and 1-10" w.c. Vertical 0-2" w.c. Inclined and 2-23" w.c. Vertical 0-25 mm w.c. Inclined and 30-130 mm w.c. Vertical 0-25 mm w.c. Inclined and 30-250 mm w.c. Vertical 0-5.5 cm w.c. Inclined and 7-58 cm w.c. Vertical |
||
| OPTIONS |
B C D E AT NIST |
Type B Connections Type C Connections Type D Connections Type E Connections Aluminum Tag NIST Certificate of Calibration |
SERIES 422
| EXAMPLE | 422 | 10 | AT | Series 422-10-AT Durablock® Inclined-Vertical Manometer, double column, 6-1/2" inclined scale, range 0-1" w.c. inclined and 1-10" w.c. vertical, with aluminum tag. |
| SERIES | 422 | Double Column, 6-1/2" Inclined Scale | ||
| RANGE |
5 10 23 130MM 250MM 58CM |
0-1" w.c. Inclined and 1-5" w.c. Vertical 0-1" w.c. Inclined and 1-10" w.c. Vertical 0-2" w.c. Inclined and 2-23" w.c. Vertical 0-25 mm w.c. Inclined and 30-130 mm w.c. Vertical 0-25 mm w.c. Inclined and 30-250 mm w.c. Vertical 0-5.5 cm w.c. Inclined and 7-58 cm w.c. Vertical |
||
| OPTIONS |
B C D E AT NIST |
Type B Connections Type C Connections Type D Connections Type E Connections Aluminum Tag NIST Certificate of Calibration |
SERIES 424
| EXAMPLE | 424 | 132MM | NIST | Series 424-132MM-NIST Durablock® Inclined-Vertical Manometer, single column, 20" inclined scale, range 0-50 mm w.c. inclined and 52-132 mm w.c. vertical, with NIST certificate of calibration. |
| SERIES | 424 | Single Column, 20" Inclined Scale | ||
| RANGE |
5 10 132MM 250MM |
0-2" w.c. Inclined and 2-5" w.c. Vertical 0-2" w.c. Inclined and 2-10" w.c. Vertical 0-50 mm w.c. Inclined and 52-132 mm w.c. Vertical 0-50 mm w.c. Inclined and 52-250 cm w.c. Vertical |
||
| OPTIONS |
B C D E AT NIST |
Type B Connections Type C Connections Type D Connections Type E Connections Aluminum Tag NIST Certificate of Calibration |
Questions
- Question
- What are the principle advantages of red gage fluid over water for use in manometers?
- Answer
- Red gage fluid slowly evaporates and will not freeze above -40F°. It is more readable and produces slightly expanded scales for better reading resolution.
- Question
- Is routine maintenance required for a Dwyer red gage fluid type manometer?
- Answer
- Yes. The zero point should be checked periodically as well as the fluid level. After a year of service, particularly with dirty air, the fluid should be replaced to assure that specific gravity changes are not affecting the accuracy of the reading.
Write Your Own Review
| Model | Description | Availability* | Price | |
|---|---|---|---|---|
| A-101 | 1 oz dispenser bottle of red gage fluid, .826 sp. gr. | 1-3 days* |
$10.85 |
|
| A-102 | 4 oz bottle of red gage fluid, .826 sp. gr. | 1-3 days* |
$21.15 |
|
| A-103 | 1 pt bottle of red gage fluid, .826 sp. gr. | 1-3 days* |
$46.95 |
|
| A-104 | 1 qt bottle of red gage fluid, .826 sp. gr. | 1-3 days* |
$88.25 |
|
| A-110 | 1 oz dispenser bottle of blue gage fluid, 1.910 sp. gr. | 1-3 days* |
$203.90 |
|
| A-220 | Clear flexible vinyl tubing, 3/16" ID x 5/16" OD, lengths to 500'; 45 psi maximum pressure @ 73°F. | 1-3 days* |
$0.50 |
|
| A-315 | Gage connector, shutoff type, for 3/16" rubber tubing. | 1-3 days* |
$19.10 |
|
| A-339 | Adapter, brass, 1/8" NPT to 3/16" rubber and 1/8" ID plastic tubing. | 1-3 days* |
$5.55 |
Related Products
