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Ashcroft
Ashcroft F Series Pressure Switch
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Ключевые параметры
Measuring range
Vacuum to 4000 psi depending on actuator; Buna-N ranges 30 IMV to 1000 psi; high-pressure piston to 4000 psi
Accuracy
Setpoint repeatability ±1% of span (additional ±1% of range per 50 °F from 70 °F setpoint)
Output
1 SPDT or 2 SPDT acting as DPDT hermetically sealed snap-acting micro switches
Process connection
1/4 NPT Female or 1/2 NPT Female, 316 stainless steel
Electrical connection
1/2 NPT Male with 18 in wire leads
Wetted parts
Buna-N, Teflon, Viton, 316L SS diaphragm/actuator; stainless steel piston with Viton O-ring options
| Параметр | Значение |
|---|---|
| Measuring range | Vacuum to 4000 psi depending on actuator; Buna-N ranges 30 IMV to 1000 psi; high-pressure piston to 4000 psi |
| Accuracy | Setpoint repeatability ±1% of span (additional ±1% of range per 50 °F from 70 °F setpoint) |
| Output | 1 SPDT or 2 SPDT acting as DPDT hermetically sealed snap-acting micro switches |
| Process connection | 1/4 NPT Female or 1/2 NPT Female, 316 stainless steel |
| Electrical connection | 1/2 NPT Male with 18 in wire leads |
| Wetted parts | Buna-N, Teflon, Viton, 316L SS diaphragm/actuator; stainless steel piston with Viton O-ring options |
| Protection | NEMA 3, 4, 7, 9, IP66 explosion-proof |
| Ambient temperature | −20 °F to 150 °F (−28 °C to 65 °C) |
| Approvals | UL; CSA; Class I Div 1/2 Groups A,B,C,D; Class II Div 1 Groups E,F,G |
| Setpoint | Single setpoint, factory set or field adjustable; adjustable 15–100% of range |
| Enclosure Material | Anodized aluminum |
| Deadband | Fixed; varies by switch element and range (see OEM range/performance tables) |
| Special Features | Dual-chamber explosion-proof enclosure; hermetically sealed micro switches; compact NEMA 7 profile |