SOLFRUNT® Model 1929 4-1/2” Low Pressure Gauges0 pages

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DESCRIPTION
Designed for pressure
measurements as
low as a few inches
of water, these
gauges, in spans
from 30” H2O to 10
psi utilize a unique
sensing element. It is
composed of a stack
of diaphragm capsules,
each consisting of two plates
contoured into a convex/
concave configuration to
nest into one another.
This results in a low
internal volume
element developing
large forces to drive
the mechanism
in extremely low
pressure ranges. The
measuring element may
be filled and attached to a
Mansfield & Green diaphragm
seal (Type L) to permit use of
the gauge with corrosive or viscous
fluids. Type ST diaphragm seals may also work
on Model 1929. Please contact factory for further
information.
Calibration adjustments (scale shape and
linearity) are made from rear of case without
removing internals. The pointer is adjusted by
removing the front ring and window.
STANDARD DIAL RANGES
MAXIMUM
INDICATION
FIGURE
INTERVALS
INTERMEDIATE
GRADUATIONS
MINOR
GRADUATIONS
0-30” H2O VAC 5 1 0.2
0-60” H2O VAC 5 1 0.5
15”-0-15” H2O 3 1 0.2
30”-0-30” H2O 5 1 0.5
60”-0-60” H2O 10 5 1
0-30” H2O 5 1 0.2
0-60” H2O 5 1 0.5
0-100” H2O 10 5 1
0-200” H2O 20 10 2
0-3 psi 0.5 0.1 0.02
0-5 psi 1 0.25 0.05
0-10 psi 1 0.5 0.1
SPECIFICATIONS
DIAL SIZE: 4-1/2”
CASE AND RING:
For Stem or Wall Mounting:
PET TURRET CASE (black) with glass-filled, threaded,
polypropylene ring and plastic pressure-relieving back
WINDOW: Acrylic
POINTER: Knife-edged, micrometer adjustable, black finish
DIAL: Aluminum with white background and black markings
MOVEMENT: Heavy brass U-frame construction with nickel
silver rocker arm on stainless steel pivots. Brass sector and
nickel silver pinion operate on brass bearings. Minimum and
maximum stops prevent segment and pinion disengagement
DIAPHRAGM: 316L stainless steel, heli-arc welded
CONNECTION: 316L stainless steel; 1/2-14 ANPT standard
(1/4-18 ANPT optional)
ACCURACY: ±1% of span (Grade 1A)
Process Gauges
SOLFRUNT® Model 1929
4-1/2” Low Pressure Gauges
Model
1929