Barksdale DPD1T/DPD2T Technology Data User's Manual
Summary
Precision metal diaphragm differential pressure switches designed for robust industrial monitoring. This comprehensive manual details product types (DPD1T/DPD2T), electrical ratings, adjustment ranges (0.02–10.2 bar), and features like intrinsically safe options. Ideal for engineers and industrial buyers needing highly accurate pressure control in applications such as machine tools, autoclaves, and pump systems.
Page 1 Text Content
Index: F / 923-1491
Type DPD1T/DPD2TMetal Diaphragm Diff. Press. Switches
Mechanical single/dual pressure switch
Repeatability ±1.0 % at constant temperature
Features
Metal diaphragm pressure switches
Wetted parts welded.
Direct action, no friction, high accuracy
Adjustment ranges
0.02 ... 10.2 bar, differential pressure
Applications
Machine and tool engineering,
Autoclaves,
Pump control,
Refrigerant monitoring,
Ship building applications
Technical Data
Wetted parts: Stainless steel 17 - 7PH Electrical ratings and A large variety of micro switches
Aluminium, nickel-plated hysteresis: offers different electrical ratings
and hysteresis for many
O-rings: FKM
applications.
Repeatability: ±1 % at constant temperature
Weight: DPD1T-...: approx. 1.6 kg
Switching rate: max. 20/min DPD2T-...: approx. 1.7 kg
Temperature range: -40 °C... +75 °C Set point adjustment: Turn the adjustment screw
clockwise to decrease the set
Protection class: IP65
point
Housing: Top part: aluminium powder
Intrinsically safe: The switches are designed for
coated
intrinsically safe applications.
Bottom part: aluminium nickel-
Please add "Exi" to your ordering
plated details when placing an order. To
comply with the intrinsically safe
Process connection: 1/8" NPT female thread
approval following max. ratings
Electrical connection: Internal terminal strip (0.5 - 2.5 must not be exceeded: Umax = 28
mm2) V Imax = 50 m A
Standard: WAGO terminal and
Approval:
cable gland
clamping range ø5 ... 11 mm
Pressure Ranges
* Static operating pressures up to 28 bar possible. Differential pressure of the adjustable range must not be exceeded.
Pressure range Adjustment range [bar] * Max. operating Proof pressure Max. hysteresis of switch
code pressure [bar] [bar] types in bar (end of range)
Increasing press. Decreasing press. (short term) H, GH [bar] M, GM [bar]
Overpressure
3SS 0.02 ... 0.2 0.002 ... 0.2 0.5. 0.7. 0.004. 0.01.
18SS 0.05 ... 1.2 0.030 ... 1.2 3,0 4.0. 0.010. 0.04.
80SS 0.40 ... 5.4 0.030 ... 5.2 8,0 10.7. 0.100. 0.22.
150SS 0.70 ... 10.2 0.100 ... 9.7 15,0 20.0. 0.180. 0.40.
Subject to technical changes.Barksdale 1
Page Summary Contents For Barksdale DPD1T/DPD2T Technology Data User's Manual
Manual Details
| Brand | Barksdale |
|---|---|
| Pages | 2 |
| File Size | 1.03 MB |
| Published | May 16, 2026 |
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Frequently Asked Questions
How do I ensure the unit is qualified for intrinsically safe applications?
To comply with intrinsically safe standards, you must add "Exi" to your ordering plated details when placing an order.
What are the overall limits for operating pressure?
Static operating pressures can reach up to 28 bar; however, the differential and proof pressure limits must not be exceeded.
Which electrical connection standards should I follow during installation?
Connections must use an internal terminal strip adhering to WAGO standards, with a maximum range of 0.5 - 2.5 Umax.