WFS10 series constant differential pressure switches-pressure differential switches for well-known air conditioning manufacturers WFS10020AA

Use medium temperature range: -20-93 ° C △ High and low pressure side connection: 1/4 Sae (7/16 -20 unf) , G 1/4 and other optional △ maximum allowable static pressure: 10 Bar (20 bar customizable)△ maximum allowable pressure difference: 5 bar (8 bar customizable)△ set point repeatability deviation: ± 1% △ output form: a set of SPDT dry connection output, (factory standard 2-wire normally open output, 3-wire normally open normally closed output optional)△ switch parameters: 10A (Max.)250V (Max.)△ wiring mode: 105 ° C flame retardant sheath wire 2x0.75 mm2 or 3x0.75 mm2 optional △ shell protection grade: IP54

The fixed differential pressure flow switch is specially developed for large volume customers. Acol professionals first communicate well with customers and understand the characteristics of their products, according to this product, we can customize the appropriate pressure-difference flow switch, so that the water flow control is reasonable and accurate, and the user can not change the setting value of the pressure-difference flow switch on the spot, therefore, the pressure difference setting value of the pressure difference flow switch can not be changed, and the unit failure caused by the improper installation and design of the on-site water system can be reduced. Acol fully considered the actual situation of user applications, know that users are concerned about flow control, the fixed pressure difference flow switch can convert the pressure difference setting value into the flow protection value for a particular heat exchanger according to the customer's request, we can customize according to this requirement in line with customer flow indicators of the fixed pressure differential flow switch, customers in the inspection only by the flow to detect.

The accuracy of volume control adopts the principle of differential pressure flow control, which can control the flow accurately and is not affected by the field installation. Can not accurately control the flow, the impact of the field installation is greater. The influence on HVAC water system does not bring any resistance to the water system. The HVAC water system with small pipe diameter and small head pump can provide more flexible pipeline layout for users. About 2 meters of water column resistance is generated on the water system and the effective lift provided to the customer is reduced. Installation requirements can be directly installed by the plant in the unit, on-site installation of components does not affect the accuracy of its flow control, and the main water pipe diameter without any requirements. Generally installed in the unit outside, by the installation of the technical level of workers and the impact of pipe diameter. Stability differential switch action and reset has a clear flow value, even if there is a small amount of air in the water system will not have floating. Less moving parts, moving parts without the risk of fatigue damage. Because of the high stability of the differential pressure switch, the controller does not need to delay the water flow signal for 10-30 seconds like the target flow switch, avoid the real lack of water flow due to delayed shutdown of the compressor caused by the heat exchanger freeze.

HongKong Extend International Enterprise Limited