vso® max hp – miniature high flow proportional valve...e / 11277 / c1 vso® max hp – miniature...

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VSO® MAX HP – miniature high flow proportional valve

/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.

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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

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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

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Dimensional drawing

Manifold mount diagram

dimensions in inch [mm]


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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.

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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


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

vso® max hp – miniature high flow proportional valve...e / 11277 / c1 vso® max hp – miniature...

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