Dwyer Instruments Series 4000 Capsuhelic®
Differential Pressure Gage for Liquids and
The Capsuhelic® gage is designed to give
fast, accurate indication of differential pressures for oil- and
water-based liquids. The gage may be used as a readout device when
measuring flowing fluids, pressure drop across filters, liquid
levels in storage tanks and many other applications involving
pressure, vacuum or differential pressure.
Using the basic design of Dwyer's
time-proven Magnehelic® gage, the Capsuhelic® gage contains a
simple, frictionless movement that permits full scale readings as
low as 0.5 inch water column. The pressure being measured is held
within a capsule which is an integral part of the gage. This
containment of the pressure permits the use of the gage on system
pressures of up to 500 psig, even when differentials to be read are
less than 0.1 inch w.c.
diaphragm-actuated Capsuhelic® gage requires no filling liquid
which might limit its outdoor applications. Zero and range
adjustments are made from outside the gage, and there is no need to
disassemble the gage in normal service.
Series 4000 Capsuhelic® differential pressure gage is ideally
suited for use as a read-out device with the DS-300 Flow
Sensors. The gage may be used on system pressures of up to 500
psig even when the flow sensor differential pressure to be read is
less than 0.5" w.c. With accuracy of ±3% of full scale, the
Capsuhelic® gage can be used in ambient temperatures from 32 to
200°F (0 to 93.3°C). The standard gage with a die cast aluminum
housing can be used with the flow sensor for air or oil
applications. For water flow measurements, the optional forged
brass housing should be specified. The Capsuhelic® gage may be
panel or surface mounted and permanently plumbed to the flow sensor
if desired. The optional A-610 pipe mounting bracket allows the
gage to be easily attached to any 1-1/4" - 2" horizontal or
Service: Aluminum Case: Air and compatible gases
and oil based liquids. Brass Case: Air and compatible gases and
water based liquids.
Materials: Consult factory.
Housing: Die cast aluminum with impregnated hard
coating, standard. Optional forged brass housing is required for
water or water based fluids.Special material diaphragms available,
Accuracy: ±3% of full scale at 70°F (21.1°C). (±2%
on 4000S models, ±4% on 4200, 4210, 4215, 4220, 4300, 4400, and
Limits: -20" Hg to 500 psig. (-0.677 bar to 34.4
Limits: 20 to 200°F (-6.67 to 93.3°C).
4" (101.6 mm) diameter dial face.
Orientation: Diaphragm in vertical position. Consult factory
for other position orientations.
Connections: 1/4" female NPT high and low pressure taps,
duplicated - one pair top for air and gas, and one pair bottom for
3 lb, 3 oz (1.45 kg) aluminum case; 7 lb, 13 oz (3.54 kg) brass
Accessories: Two 1/4" NPT plugs for duplicate pressure taps,
four flush mounting adapters with screws and four surface mounting
be flush mounted in a panel or surface mounted. Hardware is
included for either. For flush mounting, a 4-13/16" diameter
cut-out is required. Order optional A-496 heavy duty flush
mounting bracket for high-shock or high-vibration
applications. Optional A-610 kit provides convenient
attachment to horizontal or vertical piping. All standard
models are calibrated for vertical mounting. Gages with
ranges above 5 in. w.c. can be factory calibrated for horizontal or
inclined mounting on special order.
- A-298 - Flat aluminum bracket for flush
mounting Capsuhelic® gage.
- A-309 - 3-way manifold
- A-370 - Mounting bracket, flush mount
Capsuhelic® gage or Series 631B Transmitter in bracket. Bracket is
then surface mounted. Steel with gray hammertone epoxy
- A-314 - Bleed fitting.
- A-471 - Portable kit includes plastic
case, mounting bracket, A-309 3-way manifold valve, (2) A-230 high
pressure hoses and all necessary fittings, assembly required,
gage not included
- A-496 - Heavy duty flush mounting bracket for high
shock or vibration applications.
- A-610 - Pipe mounting kit for 1-1/4" to
Capsuhelic® gages are available in these units of