Product Description
Model WH. DH-1 Low Constant Pressure Suction Unit is a brand new low pressure suction apparatus, designed with integrated circuits and sensor-controlling technology, It features rapid rise in vacuum, high suction speed, extremely low noise and etc., and will not get sucked tightly to the surface of organs, thus avoiding and injury or hindrance to drainage, WH. DH-1 is a handy instrument for treatment of successive sucton and drainage for hospitals and clinics, applicable to the running drainage after the operation in intestines, stomach, chest, abdomen, bladder and others, and helpful in surgery, internal medicine, gynecology, pediatrics and etc.

I. Feature
Compact and novel in design, easy and simple to handle, and extremely low noise, without disturbing patients rest or sleep.
Able to operate protractedly with stable performance, and convenient for continuous drainage to air or liquid.
As the vacuum level can be adjusted as requird, the unit stops by itself on reaching the level set up, and resumes running below the level-due to high precision pressure sensors that makes the set-up vacuum level steady and reliable.
Tactfully designed non-lubricant vacuum pump, needs no oiling, without wearing, so nor maintenance, but easy for cleaning, averting pollution; And, what's more, capable in big and speedy suction flow.
Double overflow protection devices are intended to prevent liquid or sloid particles from entering the vacuum pump.
Under-vacuum light alarm and overvacuum sound-light alarm are incorporated in.
A vacuum discharge valve is fitted, and used when the unit needs to adjust its vacuum from high to low level.
The introduction of integrated-circuits and sensor-control makes the unit reliable and stable.

II. Specifications
Pump: Non-lubricant vacuum pump
Max Vacuum: ≥ 20kPa(150mmHg)
Sucked liquid volume: ≥ 1500ml/min
Vacuum adjustable range: 2.5~20kPa(20~150mmHg)
Noise: ≤ 50dB(A)
Power supply: AC220V± 10%, 50Hz
Input: 30VA
Liquid storage bottle: 1000ml
Dimension: 420mm× 320mm× 420mm
G. W.: 10kg