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OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin

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Persisting in "High top quality, Prompt Delivery, Aggressive Price", now we have established long-term cooperation with customers from the two overseas and domestically and get new and aged clients' large comments for Gas Pressure Sensor, Vacuum Switches Adjustable, Train Horn Pressure Switch, Looking to the future, a long way to go, constantly striving to become the all staff with full enthusiasm, one hundred times the confidence and put our company built a beautiful environment, advanced products, quality first-class modern enterprise and work hard!
OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin Detail:

Produce name Hvac high/low on off pressure switch for air conditioner compressor and heat pump 
Applicable medium   Liquid, gas, water, oil, steam
Pressure setting range The pressure setting is according to customer requirements, both positive and negative pressure can be achieved
Switch form Normally open, normally closed
Working type Manual reset, automatic reset optional
Medium temperature   High temperature resistant products can be customized
Working voltage, current 120/240VAC, 3A5~28VDC, 6A
Dimensions Please contact us for drawings
Life time   100,000 times –500000 times optional
Thread size 1/8NPT, G1/8″, 1/4NPT, G1/4″, 7/16-20UNF
Protection level IP65

This is a universal pressure switch, the appearance can be designed according to the specific requirements of customers, and it has a wide range of applications.Such as air-conditioning, refrigeration equipments, air suspension systems, water treatment, air compressors, mechanical hydraulic and oil pressure control systems, agricultural machinery, construction machinery, CNC machine tools and machining center lubrication systems, safety devices, vacuum generators, vacuum tanks , Electric vehicle brake booster system, etc.

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air compressor auto shut off switch
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All pressure parameters of our company’s products are customized according to customer requirements, in order to better match the equipment,If you don’t know what kind of start-stop pressure your equipment needs, please contact us, we have professional engineers to choose the appropriate parameters for you.

What is normally open

Normally open. When the device is not energized, the contacts on it are in an open state, and only after the device is energized can it become a closed state. This kind of contact is called “normally open contact”, or “normally open” for short.

What is normally closed

Normally closed, when the device is not energized, the contacts on it are in a closed state, and only after the device is energized can it become an open state. This kind of contact is called “normally closed contact”, or “normally closed” for short.

Through the instability jump and recovery action of the butterfly-shaped metal diaphragm,  the on and off states of the circuit is realized, so as to control the start-stop state of the equipment.The pressure setting is fixed and cannot be adjusted after leaving the factory. There are usually two states of normally closed or normally open.The working principle of a normally closed switch is that the switch is normally in the closed state, that is, Power-on state ,When the pressure of the equipment rises to the set pressure, in order to protect the safety of the equipment, the pressure switch will be switched to the power-off state. At the same time, the equipment will stop pressurizing.At this time, the equipment pressure begins to drop. When it drops to the set starting pressure value, the pressure switch will switch to the energized state, and the equipment will restart to work.Repeating this way ensures that the equipment will not be damaged due to too high pressure, and will not affect production due to too low pressure.The pressure in the equipment is perfectly in a suitable range.

This switch is a large shell switch, with a ziplock bag package and a separate plastic package.The ziplock bag packaging means that some switches are packaged in a ziplock bag at the same time. The plastic packaging shell packaging diagram is as follows:

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Product detail pictures:

OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin detail pictures

OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin detail pictures

OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin detail pictures

OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin detail pictures

OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin detail pictures


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We attempt for excellence, provider the customers", hopes to be the most beneficial cooperation team and dominator enterprise for staff, suppliers and shoppers, realizes value share and continuous advertising for OEM/ODM China Pressure Switch Hvac - Universal Pressure Switch – Anxin , The product will supply to all over the world, such as: Pakistan, Serbia, Armenia, As an experienced factory we also accept customized order and make it same as your picture or sample specifying specification and customer design packing. The main goal of the company is to live a satisfactory memory to all the customers,and establish a long term win-win business relationship. For more information,please contact us. And it's our great pleasure if you like to have a personally meeting in our office.
  • The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
    5 Stars By Mag from Italy - 2018.11.02 11:11
    Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
    5 Stars By Nainesh Mehta from Mexico - 2018.09.21 11:44
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