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differential air controller Dwyer 1950G series Differential

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differential air controller Dwyer 1950G series Differential pressure switch


     Xi'an Ao Xin Automation Instrument Co., Ltd.  

  

 (formerly named   Xi'an Ao Xin Automation Instrument Pneumatic Co.,ltd.) is a leading Chinese company specializing in the CCS  Pressure Measurement  Temperature   Measurement and some other kinds of products . We are a key member China of Pneumatic Association, and is awarded AAA Credit Grade by Bank of China.

 

High quality of the raw materials, the precision of the parts, the hard tests during and at the end of production are a warranty of reliability and features. Our real strength is to develop customised products to solve any requirement of utilisation. The production runs conforming to the rigorous ISO 9001/2000 requirements .  The product range consists of  sensor transmitter   pressure switch .differential pressureswitch Flowmeter    etc ,which are found in a variety of industrial applications such as machinery, metallurgy, food, textile and waste treatment.

 

dwyer 1630 Series   1638-0  1638-1 1638-2  1638-5 1638-10  Adjustable Differential Pressure Switch

 

 

The ADPS in Flame-Proof ATEX Enclosure

 

The ATEX approved Series AT1ADPS Adjustable Differential Pressure Switch is designed for pressure, vacuum, and differential pressure applications in hazardous areas. The dual scaled adjustment knob in inches water column and pascals allows changes to the switching pressure to be made without a pressure gage. The switch is available with settings from 0.08 in w.c. (20 Pa) up to 16 in w.c. (4000 Pa). The silicone diaphragm makes this series ideal for use with air and other noncombustible gases. Flame-proof ATEX enclosures are available in aluminum and can include a glass window for viewing set point status on adjustment knob.

 


Important notes for installation:

 

  • Cables must be fitted through 1/2" NPT cable gland or ATEX conduit (not supplied with instrument).
  • Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, overpressure relief valve).
  • Open cover only after de-energizing instrument.
  • Attention: Check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

 

Specifications

 

Service Air and non-combustible, compatible gases.
Wetted Materials Diaphragm material: Silicone;
Housing material: Brass or SS depending on pressure connections chosen. 
Switch body: PA 6.6 and POM;
Cover: Polystyrene
Temperature Limits Process and ambient temperature from -4 to 185°F (-20 to 85°C); 
Case: -58 to 140°F (-50 to 60°C)
(Note: Product temperature limits differ from case).
Pressure Limits 40 in w.c. (10 kPa).
Switch Type SPDT.
Electrical Rating Max. 1.5 A/250 VAC, max. switching rate: 6 cycles/min.
Set Point Adjustment Hand knob on pressure switch inside case. (De-energize before opening case).
Mounting Orientation Vertically, with pressure connections pointing downwards.
Mechanical Working Life Over 106 switching operations.
Enclosure Rating IP66. IP65 with option OPV, overpressure relief valve.
Housing Material Aluminum.
Finishing Texture epoxy coat RAL7038.
Pressure Connections 1/8" NPT female brass (SS optional). In presence of acetylene it is necessary to use SS.
Electrical Connections Two 1/2" FNPT. Cable gland not included.
Weight 7 lb (3.2 kg).
ATEX Approved Products from Comhas with ECN NEMKO 10ATEX1096.
Agency Approvals CE 0470 II2 GD Ex d IIC Gb T6; -50°C ≤Ta ≤ +60°C Ex tb IIIC Db T 85°C.

 

 

 

    

About Us

About Us

Xi`an Ao Xin Automation Instrument Co., Ltd., is located in Xi`an city which is the authoritive centre of instrument and gauge .It is cooperated with many related domestic cooperation to research ,sale and service and also obtained the cert of ISO9001-2008. overall strength of the industry 's leading domestic well-known enterprises .Over the years, the company under the "integrity, innovation , development and harmony " principle of service .

Contact Us

Website:http://www.aosoonyb.com
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Email:xaaxyb@126.com          Email:wsb2828@126.com

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