Starting at $1,110.51

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Features

  • Differential pressure ranges: 6 to 150 inH2O
  • ±1.00% fs accuracy
  • Available pressure units: inH2O, mmH2O, kPa, mBar
  • High static pressure capability up to 1500 psi
  • Field-adjustable setpoint; fixed deadband
  • Rugged NEMA 4X aluminum enclosure
  • Watertight or explosion proof versions
  • Class 1, Div 1, Groups C & D, SPDT or DPDT setpoints
  • 1/4 NPT Female pressure connection

The Ascroft DDS Series differential pressure switch is designed to sense low differential pressures between high pressure sources. The high pressure seals are opposed stainless steel bellows assemblies, while the differential pressure is sensed by a diaphragm clamped between these bellows assemblies. The diaphragm has a large area to accurately sense low differential pressure, and during an over-pressure the diaphragm is fully supported. This DDS is ideally suited for pressure level sensing, filter monitoring, and pressure control.

The DDS design is symmetric so that both the high or low pressure sides of the element can withstand the maximum pressure with the opposite side at atmospheric pressure. The rugged cast aluminum housing incorporates a "frictionless" switching mechanism, and can be specified as watertight or explosion proof. The housing is large enough to accommodate up to one full size SPDT or one DPDT electric switches.

The standard differential pressure sensing element is constructed of a strong aluminum alloy using a Buna N elastomer diaphragm. Other diaphragm and wetted area materials are available.

Ashcroft 80 Wafer Isolation Rings
360 degree sensing flexible inner-liner, no process deadleg, 2 to 20in nominal pipe size
$369.16
Ashcroft V01 Gauge Valve
Isolates process from instrument assembly, 316L stainless steel construction, 6,000 psi max pressure
$101.76
Ashcroft V01 Block and Bleed 2-Valve Manifold
Isolates and bleeds the process from instrument assembly, 316L stainless steel construction
$133.90
Ashcroft V02 Block and Bleed 2-Valve Manifold
Isolates and bleeds the process from instrument assembly, 316L stainless steel construction
$189.26
Ashcroft V01 3 Valve Manifold
Isolates each port and equalize pressure for instrument maintenance, 316L stainless steel construction
$187.46
Ashcroft 81 Bolt Thru Isolation Ring
Low-maintenance protection for gauges, switches and transducers from contact with process media, for 1 to 10-inch pipe sizes
$634.60
Ashcroft V01 5 Valve Manifold
Isolate and bleed the process for each port as well as equalize pressure for instrument maintenance
$267.80
Ashcroft V02 Direct & Remote Mount Three-Valve Manifolds
Isolates each port and equalizes pressure for instrument maintenance, 316L stainless steel construction
$278.51
Ashcroft V03 3 Valve Manifold
3-valve manifolds isolate each port and equalize pressure for instrument maintenance
$187.46
Ashcroft 82 Threaded Isolation Ring
Barrel-style isolation device used on threaded piping systems to protect measuring instruments from contact with process media
$351.06
Ashcroft V02 Direct & Remote Mount 5 Valve Manifold
5-valve manifolds isolate and bleed the process for each port as well as equalize pressure for instrument maintenance
$519.48
Ashcroft V02 Low Pressure Ball Valve
Floating ball design provides bi-directional isolation, anti-blowout stem design, 1000 psi max pressure rating
$48.20
Ashcroft V02 High Pressure Ball Valve
Floating ball design provides bi-directional isolation, anti-blowout stem design, 6092 psi max pressure
$332.07
Ashcroft V02 Multiport Valve
Isolates process from instrument assembly, 316L stainless steel construction
$252.80
Ashcroft 1092 / 1094 / 1095 Gauge Cock
Ideal where process protection is essential
$16.46