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131 Flow Switch – Performance Series
Control and alarm applications, designed for HVAC131 Flow Switch – Performance Series
This Vane Operated Flow Switch is designed to provide protection and control in ducted air systems with flammable atmospheres making it suitable for traditional industries such as Oil and Gas; Chemical, Petrochemical and Refining where it works best in temperatures ranging from 0 -60C.
Key Features
• Air Flow.
• 2.5 to 12.5 m/sec.
• 500 to 2500 ft/min
• ATEX and IECEx.
Related products
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387 Analogue Pressure Transmitter
Designed for heavy duty applications387 Analogue Pressure Transmitter
The Delta Mobrey 387 pressure transmitter has a compact, robust, all stainless steel construction making it particularly suited to the harsh corrosive environments of offshore applications. It also offers excellent accuracy of 0.15% of the upper range value, including combined effects of linearity, hysteresis and repeatability,
Product applications
The 387 is suitable for a wide range of applications in many industry sectors:
- Oil & Gas
- Chemical
- Petrochemical
- Water
- Power
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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.
• ECAS Certified (Emirates Conformity Assessment Scheme) -
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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201 Pressure Switch – Performance Series
Bellows Actuated for high performance on control style applications201 Pressure Switch – Performance Series
Initially designed in the mid-70s and developed over subsequent years. the Performance Series range of pressure switches offers the broadest range of options, the highest levels of set-point repeatability all combined with the long-term performance and confidence of a well-established product.
Performance Series models 201/202/203/281 utilise a bellows type sensor that offers a very linear response to pressure change. This sensor, 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.
This range of pressure switches has been most successful in industries which may have corrosive atmospheres or need products that are resistant to chemical attack, such as the Oil and Gas, Chemical, Petrochemical, Power and Food.
The 201 Presure Switch is suitable for setpoints between -1bar and 75bar with maximum working pressures up to 100bar. Available in models 202, 203 and 281 (EAC certification is available on request).
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.
- Precise and accurate operation guaranteed by use of hydraulic formed bellows, or capsule stack.
