Product Description

1 Product Overview

The 1012-2 Series solenoid valve is 1.5mm orifice diaphragm solenoid valve developed by

Keyto independently, its mainly function is to switch on and off the liquid, be resistant to strong

acid and alkali corrosion, high temperature and high pressure. This Series have 8Kg and 15Kg

option types, and they are suitable for different reagents in different condition. The life cycle of

valves can be more than 2 millon times. It's a high precision, low cost and maintenance-free

diaphragm solenoid valve.

1.1 Characteristics Of 1012-2 Series

Orifice O.D.:1.5mm; Small resistance along the path

Flow capacity: Cv is about 0.03; Flow rate is about 5.1mL/s (Pressure differential 50Kpa,

25ºC,pure water)

Small dead volume: No dead volume inside the valve body;

Multiple options for wetted materials:

1. Material of valve body: Improved PTFE, PTFE

2. Seal material: FFKM, FKM

Long lifecycle, high performance,

resistant to strong acid and alkali corrosion, high

temperature and high pressure

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, 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 several 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 nominal pressure is 1.5 times, then ensure all connector won't leak within 1min.

Sealing(inside leakage).

For two normally closed branches, give one port pressure; put the other port into water.

Under the nominal pressure, there is no bubble come out in 1min.

1012 Series Specification

Structure	Direct acting poppet type
Valve type	2/2-way, normally closed
Port No.	2
Orifice diameter	1.5mm
Tubing specification	Connect the hose connector (according to the outer diameter of the pipe joint), or the pipe clamp connector (depending on the outer diameter of the pipe)
Flow coefficient of valve (CV)	0.03
Mediums	Strong acid, strong alkali, high temperature fluid, air, organic solvent, etc.
Ambient temperature range	5~40ºC
Withstand pressure(in - out)	0~0.8MPa	0~1.5MPa
Leakage rate	0
Response time	<30ms
Dead volume	0
Allowable voltage fluctuation	-10%~+10%
Power Consumption	5.2W	Energy saving circuit:15W(Starting),3W(Maintenance)