Proportional Valve for Ventilator/Respirator/ICU Instruments Application

Product Details
Customization: Available
Size: 10.15 * 12.7 * 34.5 mm
Transport Package: Bulk Package
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  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
  • Proportional Valve for Ventilator/Respirator/ICU Instruments Application
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  • Overview
  • Company Introduction
Overview

Basic Info.

Model NO.
PV02
Specification
CE, RoHS
Trademark
Keyto
Origin
China
HS Code
8481804090
Production Capacity
200, 000 PCS/Year

Product Description

1 .Production Overview
1.1 Overview of high flow proportional solenoid valve
High flow proportional solenoid valve is Keyto independent research and development of a
large orifice diaphragm solenoid valve, the main function is to control the flow of gas.
Proportional valve control principle: pulse width modulation signal (PWM) control, by changing
drive current of the coil to change the opening degree of the solenoid valve, so that there is a
linear relationship between the current and solenoid valve flow. Proportional valve can take the
way of open loop and closed loop control.
Typical Applications: Ventilators, Oxygenerator/Reservoirs, Anesthesia Delivery & Monitors,
Pressure and Flow Control, Mass flow controller.
 
1.2 Characteristics of high flow proportional solenoid valve
Orifice diameter: 4.5 mm;
Flow rate: 140slpm (pressure 2 Bar, 25ºC, air)
Small dead volume: zero dead volume inside the solenoid valve.
Multiple option for wetted material:
1. Body Material:brass, stainless steel
2. Seal Material:FKM (Special fluoro rubber)
Long lifetime, up to 100 million life cycles at a fixed frequency (not full stroke).
 
1.3 Words Definition
Response Time(T)
Input air/water at 0.25MPa and maximum working pressure drop from inlet port, input
rated control electrical signal to make the tested solenoid valve open and close, then we'll get
the change of outlet pressure which we can measure from pressure sensor. At the same time,
we'll get the lapse of time which starts from power on/off to rise to 90% of max pressure
(normally closed valve) and drop to 10% of max pressure (normally open valve) by quick
response time measure devise. Repeatedly test 3 times and take the average value as the power
on response time and the power off response time.
As engineering experience, it is the design critical value that response time above 50ms.
The aspiration of valve may not stable. Therefore, the response time is not beyond 50ms within
nominal lifetime.
In addition, there is a response time at current method in this industry. The change of
circuit leads to current change, according to the action of solenoid valve. The response time T1,
T2 at current method is normally less than the response time(T) which measured by air flow
method.
Seal Capability
Pressure strengthen (outside leakage).
Solenoid valve powers on, the outlet is close, and the inlet water under condition of 5ºC
~40ºC and 1.5 times of nominal pressure. Then ensure all connector won't leak within
1min.
Sealing(inside leakage)
For two normally closed branches, give one port pressures; put the other port into water.
Under the nominal pressure, there is no bubble come out in 1min.

Specification:
Number of ways
2 Way Normally Closed
Function
Pressure compensating valve
Connection
4mm tube
Orifice Size
4.5mm
Fixing
Base mounted (2 X M3 screws, length above
23mm is recommended)
Metal material in contact with media
nickel-plated brass, stainless steel, brass
Non-metal material in contact with media
FKM (optional)
Maximum Flow Rate
140slpm @ p = 2.0 Bar
Withstand pressure
0~7 Bar
Internal leakage
<5sccm @ p = 7.0 Bar
Response Time
<10ms
Cycles per Lifetime
> 100 Million cycles
Temperature range, ambient °C
-10ºC(unfrozen)to 50ºC
Temperature range, media °C
-10ºC(unfrozen)to 50ºC
Rated Voltage
5v;12V;24V (optional)
Power Consumption
2.8 Watts
Electrical connection
Connector connection (optional)
Insulation class, °C
F155
Electrical insulation, volt
500 AC
Company Introduction

Proportional Valve for Ventilator/Respirator/ICU Instruments ApplicationProportional Valve for Ventilator/Respirator/ICU Instruments Application

Proportional Valve for Ventilator/Respirator/ICU Instruments ApplicationProportional Valve for Ventilator/Respirator/ICU Instruments Application
 
 
Proportional Valve for Ventilator/Respirator/ICU Instruments Application
 
 

Company Introduction
 
Keyto specializes in the designing and manufacturing of precision fluid control components and systems for IVD, medical, biochemical and laboratory applications. 
We R&D: ADP modules, micro solenoid valves, rotary shear valves, high-precision syringe pumps, diaphragm pumps, liquid handling platform, and microfluidic bonding parts (including Bonded Manifold & Microfluidic Chips)

 

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