DLD series differential pressure controls(oil presser control)protect the refrigeration compressor and other machineries. In refrigeration system,lubrication system must be kept in a certain oil pressure in order to get well lubrication for every part.If the oil pressure is too low,compressors will happen“Cylinder sticking”for losing oil in normal running or starting,even destroy bearing pad of
the compressor.
The differential pressure control receives the signal of discharge pressure from lubricating oil pump and suction pressure from compressor.And it maintains the two pressure in a certain differential range.When the difference is lower than the setting one,the switch automatically cuts the compressor circuit off to stop running.
Approvals:CE,GIC
Product name |
Differential pressure switch |
Color | Customer's Request |
Rated voltage | 110V/220V |
Ambient temperature | -40℃~+65℃ |
Medium temperature | -40℃~+120℃ |
Available medium | R134a, R22, R407C, R404A/R507, water, air & oil |
Cable connection | 15mm dia. |
Certification | CE, GIC |
Adjustable range | 0.05-0.2MPa |
Application | pressure sensitive switch |
Product Keywords | compressor switch,pneumatic switch |
Packed in carton box or customized
Standard export carton packing.
7-20 days after confirming order,detail delivery date should be decided according to
production season and order quantity.
Changzhou Duling Controller Co.,Ltd is a collection research and development, production, sales and service in a body's enterprise, has the advances production and testing equipment. The main refrigeration bypass selenoid valve, pressure protection switch, unloading valve, check valve, water valve and other products.
Changzhou Duling since its founding in 2002, has been to provide better products for the society and ceaseless effort, struggle; Duling, the company has always been that guarantee the quality of each product, the best interpretation is a corporate social responsibility. On the basis of constant pursuit of more excellent product quality, to provide more high quality products for the society.