vso® max hp – miniature high flow proportional valve...e / 11277 / c1 vso® max hp – miniature...
TRANSCRIPT
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 1/6Subject to change without notice www.first-sensor.com [email protected]
Features
– 2-way normally closed – Flow capability of 350 slpm @ 120 psi (8 bar) – Face seal manifold mount, manifold
available with 1/8 NPT ports – Proven performance tested to 100 million
life cycles – Light weight, low power consumption – Cleaned for Oxygen service use
Certificates
– RoHS – Reach
Media compatibility
Air, argon, helium, hydrogen,methane, nitrogen, oxygen, &others
Applications
– Ventilators – Insufflators – Anesthesia delivery & monitors – Pressure & flow control – Mass flow control
The VSO® MAX HP is a miniature high flow proportional valve that provides maximum flow capabilities up to 350 slpm @ 120 psi (8 bar), while consuming only 2.2watts of power. The valve delivers a high range of controllable flow while consuming 25 % less power than comparable miniature proportional valves. VSO® MAX HP’s operating pressure of up to 120 psi (8 bar) eliminates the need for an inlet regulator. This translates to a smaller, sleek medical device design and offers potential savings.
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 2/6Subject to change without notice www.first-sensor.com [email protected]
Part no. Pressure (1) Orifice size Leak rate Response Power (@ 20 °C)
Internal External
TMP120... 0 to 120 psi 0.116 in (2.95 mm)< 5 sccm air up to 120 psi
< 0.5 sccm air up to 120 psi
< 10 ms typical 2.2 Watts typ
TMP101... 0 to 101 psi 0.125 in (3.18 mm)
Specification notes(1) Proof pressure is 300 psig (20.7 bar).
Performance characteristics
Parameter
Operating temperature 41 ... 131 °F (5 ... 55 °C)
Storage temperature -40 ... 158 °F (-40 ... 70 °C)
Weight 2.45 oz (69.5 g)
Product specifications
Parameter
Body C36000 brass
Stem base 430 FR series stainless steel, C36000 brass
Other FKM, 430 FR stainless steel, stainless steel
Wetted materials
Filtration40 micron recommended
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 3/6Subject to change without notice www.first-sensor.com [email protected]
Typical flow curve
TMP120 pressure vs flow curve
Typical air flow with 12 VDC @ 25 psid, tested with air 20 °C)
TMP101 pressure vs flow curve
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 4/6Subject to change without notice www.first-sensor.com [email protected]
Dimensional drawing
Manifold mount diagram
dimensions in inch [mm]
dimensions in inch [mm]
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 5/6Subject to change without notice www.first-sensor.com [email protected]
Installation and use
Suggested current driver schematicThis simple current driver circuit draws only 1 mA at the input control (0-5 VDC) and provides control for any VSO® MAX HP valve configuration regardless of valve voltage or resistance.
The table below describes the recommended R1 and R2 resistor values based upon the full shut-off current.
Selectable resistor values for a low current (1 mA) LM358- based current driver
Control voltageinput (0-5 VDC)
OP AMP supply voltage
.1 μf
3 8
24
11 K
LM358TIP 120
Valve driver voltage
100 KR1
R2
Valve coil
1 ohm(resisor rated to
1 watt min.)
Min. voltage (VDC) Valve drive voltage (VDC)
Nominal coil resistance @ 20°C (ohms)
TMP 120Maximum output current from circuit
TMP 101Maximum output current from circuit
Input current for full flow(mA)
R1(ohms)
R2(ohms)
5 7 11.9 425 435 430 4990 464
12 14 64.8 172 181 180 4990 178
24 26 273.6 85 91 90 4990 86.6
Typical Valve Set-up
Valve electrical control
Basic Control:The VSO® MAX HP valve can be controlled by either voltage or current; however, it is highly recommended that current control be employed to ensure the most repeatable valve flow performance.
PWM Control:For PWM control, the signal applied to the valve should have a frequency of 5 kHz or greater. Optimum frequency will be application dependent.
E / 11277 / C1
VSO® MAX HP – miniature high flow proportional valve
Page 6/6Subject to change without notice www.first-sensor.com [email protected]
Rated voltage (VDC)
TMP 120Control current at max. flow (mA)
TMP 101Control current at max. flow (mA)
Nominal coil resistance @ 20°C(ohms)
5 423 430 11.9
12 170 80 68.4
24 85 90 273.6
Electrical interface
Electrical requirements
dimensions in inch [mm]
Ordering information
Part Pressure Function Orifice Elastomer Coil selection Electrical interface Pneumatic interface
TM P120 [120 psi] C [NC] 116 [0.116 inch] V [Viton (FKM)] 050 5 VDC F [Wire leads, 18 inch] 0 [Manifold mount]
P101 [101 psi] 125 [0.125 inch]* 120 12 VDC
240 24 VDC
Accessories
191-000214-002 Mounting screw (two per valve), 4-40 x 7/8" UNC, stainless steel, socket head cap not supplied with the valve
190-007060-001 Spare manifold mount O-ring, FKM supplied with each valve (2 required)
890-009034-001 Single station manifold, 1/8 NPT not supplied with the valve
Note:
The TMP 101 may require higher voltage to obtain maximum flow at high operating temperatures. Please budget a 10% electrical margin.
* Only with 101 psi