Differential pressure
Differential Pressure is the measurement of pressure between two given points.
Delta Mobrey offers a wide range of Differential Pressure products, including switches, transmitters and gauges.
Showing all 15 results
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D0 Differential Pressure Switch – Sentry Series
Weatherproof/Flameproof/Ex iaD0 Differential Pressure Switch – Sentry Series
This Sentry switch is available in models D01, D02 and D03 (EAC certification is available on request).
Key Features
- Robust weatherproof, epoxy coated, aluminium housing approved to IP66 and NEMA 4X
- SPDT and DPDT switch contacts with environmentally and hermetically sealed options
- Stainless steel wetted parts as standard
- Better than 1% set-point repeatability
- Market leading 5 year warranty
- Pressure ranges from 0.4 to 700 bar (4 to 1500 psi)
- Pmax up to 1000 bar depending on range
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Differential Pressure Gauge – DB Series
Double Bourdon Tube, 100, 150 options available, Manufactured in the EUDifferential Pressure Gauge – DB Series
All Stainless Steel execution, making it suitable for a range of applications in process plants and OEM equipment. The robust nature of this product allows it to be used in hazardous areas, 1 and 2, to work with SIL2 safety related systems and corrosive atmospheres. Like many Delta Mobrey products, this gauge can be modified should the customer require it.
Key Features
• Nominal Diameter of 100 mm.
• Degree of Protection IP55/65/67.
• Stainless steel enclosure as standard.
• Ranges available between 1 and 60 bar.
• Accuracy class 1.6%. -
D32 Analogue Differential Pressure Transmitter – D Series
Basic, low cost and robustD32 Analogue Differential Pressure Transmitter – D Series
The D32 Differential Pressure Transmitters is a cost effective solution for the measurement of differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specially selected type of manometric liquid.
The process connection to mount directly on to a 3 or 5 valve manifold, and also available is several type of chemical seals to measure any type of process fluid and condition.
Key Features
- Accuracy ±0.25%
- 4-20mA output signal
- Static pressure limit up to 420 bar
- Gold plated diaphragm option, suitable for hydrogen based applications
- Hastelloy C276 wetted parts option
- Intrinsic safety certificate (ATEX, IECEx)
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301 Differential Pressure Switch – Performance Series
High performance on control or alarm applications301 Differential Pressure Switch – Performance Series
The Performance Series differential pressure switches utilise a stainless steel diaphragm based sensor. This, when coupled with a precision stainless steel mechanism designed to minimise friction in the moving parts, helps deliver the market leading performance customers have come to expect from the series. The model 301 Differential Pressure Switch is suitable for setpoints between -12.5mbar and 15bar with maximum working pressures up to 110bar. Also available in models 303, 304 and 381 (EAC certification is available on request).
Key Features
• Precision stainless steel mechanism for arduous atmospheres and high humidity
• Set point adjustable over whole range against calibrated scale with tamperproof adjuster
• Weatherproof and Flameproof models ATEX and IECEx
• Safety vented or blow out device as standard
• NACE MR-01-75 compatibility
• Hermetically sealed microswitch option
• Models for fixed switching differential, adjustable differential and HI-LO operation
• Ranges available up to 15 bar (200 psi), static pressure up to 250 bar (3500 psi)
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306 Differential Pressure Switch – Performance Series
Control and alarm for gasses and low diff pressure apps306 Differential Pressure Switch – Performance Series
The 306 Performance Series differential pressure switches utilise a nitrile diaphragm based sensor. This, when coupled with a precision stainless steel mechanism designed to minimise friction in the moving parts, helps deliver the market leading performance customers have come to expect. The model 306 Differential Pressure Switch is suitable for setpoints between -12.5mbar and 4bar with maximum working pressures up to 15bar. Also available in the 386 model (EAC certification is available on request).
Key Features
- Ranges available up to 4 Bar (60 psi)
- Weatherproof IP66 enclosures in zinc alloy or stainless steel
- ATEX and IECEx Ex d Flameproof models available
- Environmentally and Hermetically sealed switch options
- Set-point adjustable over the full range against a calibrated scale with tamperproof adjuster
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310 / 316 Differential Pressure Switch – Performance Series
Low pressure ranges, aluminum wetted parts310 / 316 Differential Pressure Switch – Performance Series
The model 310 Differential Pressure Switch is suitable for setpoints between -2.5mbar and 75mbar with maximum working pressures from -500mbar to +500mbar, also available in the 316 model. This range makes this series suitable for a number of industries, including Power, Food and Industry, Refining and Petrochemical. (EAC certification is available on request).
Key Features
• Die cast weatherproof enclosure to IP66 (NEMA 4).
• Stainless steel mechanism.
• Internal tamperproof set point adjustment.
• Calibrated scale.
• Set point adjustment from -2.5mbar (-1 in H2O) up to 1.6 bar (20psi) dependent on model. -
D-Series Diaphragm Seals
Direct/Remote Mount D-Series Diaphragm SealsD-Series Diaphragm Seals
The D-Series range of Diaphragm Seals are designed for use with the D-Series Transmitters.
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Differential Pressure Transmitter D31 – D-Series
HART Communication, aluminium or stainless steel enclosureDifferential Pressure Transmitter D31 – D-Series
The D31 SMART Differential Pressure Transmitters are suitable for measuring differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specially selected type of manometric liquid. The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250/320/413 bar. The casing is made of cast aluminium alloy or 316 stainless steel with a IP66/IP67 rating. The design of the casing enables the use of a local display, rotation of the display by 90°, rotation of the casing by 0–355° relative to the sensor, and a choice of cable direction.
The D31 Differential Pressure Transmitter is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 413 bar.
Key Features
• Die cast weatherproof enclosure to IP66 (NEMA 4).
• Stainless steel mechanism.
• Internal tamperproof set point adjustment.
• Calibrated scale.
• Set point adjustment from -2.5mbar (-1 in H2O) up to 1.6 bar (20psi) dependent on model. -
D34 Differential Pressure Transmitter – D Series
Designed for gas, ATEX/IECEx certifiedD34 Differential Pressure Transmitter – D Series
The D34 measures the differential pressure of gases. Typical applications include the measurement of blast pressure, chimney draughts or pressure/underpressure in furnace chambers. The transmitter can withstand overpressure up to 1 bar. The housing of the electronic circuit is IP66/67 rated.
Key Features
- High accuracy ±0.1%
- 4-20mA analogue with digital communications
- Fully HART ® compatible
- ATEX certified and IECEx
- Ability to locally configure measuring range
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D35 Differential Pressure Transmitter – D-Series
Aluminium or stainless steel enclosure, for all applicationsD35 Differential Pressure Transmitter – D-Series
The model D35 Differential Pressure Transmitter comes fitted with two diaphragm seals. It is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 420bar. The D Series SMART Differential Pressure Transmitter is suitable for a wide range of applications for measuring differential pressure, level and flow.
Key Features
- ATEX – Flameproof and Intrinsically Safe IECEx – Flameproof and Intrinsically Safe
- High accuracy ±0.1%
- Fully HART ® compatible
- 4-20mA analogue with digital communications
- Fully welded sensor guarantees tightness of oil systems for long term usage
- Programmable range, zero shift, characteristic and damping ratio with local panel keys
- Linearisation of output signal on 20 point curve for specific application is available
- Write protection option through DKAP-03 communicator, ‘D-Soft’ program or software using library EDDL
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GR3/6 Differential Pressure Switch – Compact Series
Reduced space applications, flying leads or junction box installationGR3/6 Differential Pressure Switch – Compact Series
The GR Series switches are housed in a compact and rugged enclosure making them particularly suitable for panel mounting in harsh environments. All models in the Compact Series come with hermetically sealed switch contacts and flying leads as standard. The GR3 and GR6 Differential Pressure Switch models are suitable for setpoints between -12.5mbar and 10bar with maximum working pressures up to 250bar (EAC certification is available on request).
Key Features
- Compact and rugged design
- Weatherproof IP66/NEMA 4
- ATEX Flameproof CENELEC Ex d IIC option
- Stainless steel body option NEMA 4X rating
- Optional weatherproof, ATEX Ex e, ATEX Ex ia or ATEX – Flameproof Ex d IIC terminal enclosures
- NACE MR-01-75 compatibility
- Ranges available up to 10 bar (160 psi) Static Pressure up to 250 bar (3,500 psi)
Field adjustable
Hermetically sealed snap switch CSA listed
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S30 Differential Pressure Switch – Industrial Series
High performance on control or alarm applicationsS30 Differential Pressure Switch – Industrial Series
This robust pressure switch is suitable for a range of industrial applications, such as resistance to chemical attack or for use in corrosive atmospheres. The S30 Differential Pressure Switch is suitable for setpoints between -12.5mbar and 10bar with maximum working pressures up to 110 bar. This switch comes in models S31 and S34 (EAC certification is available on request).
Key Features
• Weatherproof and Flameproof models ATEX and NEC 500
• NACE MR-01-75 compatibility
• Ranges available up to 700 bar (10,000 psi) – Maximum working pressure up to 1000 bar (15,000 psi)
• Field set point adjustment against a reference scale
• Hermetically sealed microswitch options
• Optional gold alloy contacts
• Terminal block for easy field wiring
• Safety vented design as standard
• PED 2014/68/EU CAT IV option -
Needle Valves, 2, 3 and 5 Ways
Direct and Remote V Series -
DG Differential Pressure Gauge – DG range
Single or double diaphragm, 100, 150 All stainless steelDG Differential Pressure Gauge – DG range
The DG diaphragm operated differential pressure gauges offers customer a cost effective and reliable solution to their process control requirements. This range comes with the Single and Double diaphragm construction to suit a wide range of over pressure and measuring range requirements. Available in variety of wetted part material, the DG differential pressure gauge can be used for variety of applications.
Key Features
- Nominal Diameter of 100 mm and 150 mm
- Degree of Protection IP55/IP65/IP67
- Stainless steel enclosure as standard
- Blowout Protection
- Ranges available from 0 to 25mbar, up to 0 to 25bar.
- Monel pressure connection, material and options available for double diaphragm construction
- Double & single diaphragm construction depends to range & static pressure & wetted part materials
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D33 Differential Pressure Transmitter – D-Series
HART Communication, stainless steel enclosure suite for all applicationsD33 Differential Pressure Transmitter – D-Series
The D33 SMART Differential Pressure Transmitters are suitable for measuring differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specifically selected type of manometric liquid. The casing is made of cast aluminium alloy or 316 stainless steel with IP66/67 protection. The design of the casing enables the rotation of the casing by 0-355° relative to the sensor, and a choice of cable direction. The model D33 Differential Pressure Transmitter is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 420bar.
Key Features
- Accuracy +-0.1%
- 4-20mA output signal
- Fully HART ® compatible
- Static pressure limit up to 420 bar
- ATEX certified (Intrinsically Safe)
- Gold plated diaphragm option
- Hastelloy C276 wetted parts option
Related products
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Differential Pressure Transmitter D31 – D-Series
HART Communication, aluminium or stainless steel enclosureDifferential Pressure Transmitter D31 – D-Series
The D31 SMART Differential Pressure Transmitters are suitable for measuring differential pressure of gases, vapours and liquids. The active sensing element is a piezoresistive silicon sensor separated from the medium by a diaphragm and by a specially selected type of manometric liquid. The special design of the active sensing element ensures that it is able to withstand pressure surges and overloads of up to 250/320/413 bar. The casing is made of cast aluminium alloy or 316 stainless steel with a IP66/IP67 rating. The design of the casing enables the use of a local display, rotation of the display by 90°, rotation of the casing by 0–355° relative to the sensor, and a choice of cable direction.
The D31 Differential Pressure Transmitter is suitable for measuring pressures from -100mbar to 70bar with maximum working pressures up to 413 bar.
Key Features
• Die cast weatherproof enclosure to IP66 (NEMA 4).
• Stainless steel mechanism.
• Internal tamperproof set point adjustment.
• Calibrated scale.
• Set point adjustment from -2.5mbar (-1 in H2O) up to 1.6 bar (20psi) dependent on model.
