Company Profile
Emerson Electric - ASCO Scientific - Medical Analytical Solenoid Valves, Micro-Miniature Valves Stock Symbol EMR 50 Hanover Rd Florham Park, NJ 07932 USA
Proportional Solenoid Valves, Posiflow®, 1/8" to 1/2" NPT
Electrical:
Standard voltage: 24
VDC
Coil: Molded Class F
(standard)
Coil resistance: 25
Ohm at 68°F (20°C)
Operating current: 100
- 500 mA
Electrical coil input:
0 - 24 VDC
Recommended PWM
frequency: 300 Hz Air/Gas;
200 Hz Water/Light Oil
Hysteresis: <5%
➀ (<7.5% for 8203 Valves)
Repeatability: <3%
(<1% for 1/8” NPT Valves)
Sensitivity: <2%
(<1% for 1/8” NPT Valves)
The 8202/8203 Series is a 2 Way
proportional valve available in a Normally Closed construction only. They
are available as 24 VDC operated only with brass or stainless steel
bodies. Flow rates are adjustable between 0% and 100% of rating. There are
many optional features available including an ASCO electronic control unit
and electrical connections. Dedicated constructions of the 8202/8203
Series are suitable for the following applications.
Construction:
Body: Brass, 303 Stainless
Seals & Disc/Diaphragm: FKM or NBR
Core Tube: 305 Stainless
Core & Plugnut: 430F Stainless
Springs: 302 Stainless
Rider Rings: PTFE
Breaker Piece: Brass, 303 Stainless
Normal Ambient Temperature:
14°F to 104°F (-10°C to
40°C) for 22.6 watt solenoid.
32°F to 104°F (0°C to
40°C) for 8.6 watt solenoid.
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